WO2020015575A1 - Multi-cylinder engine system - Google Patents

Multi-cylinder engine system Download PDF

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Publication number
WO2020015575A1
WO2020015575A1 PCT/CN2019/095589 CN2019095589W WO2020015575A1 WO 2020015575 A1 WO2020015575 A1 WO 2020015575A1 CN 2019095589 W CN2019095589 W CN 2019095589W WO 2020015575 A1 WO2020015575 A1 WO 2020015575A1
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WO
WIPO (PCT)
Prior art keywords
shaft
gas distribution
transmission
cylinder
engine system
Prior art date
Application number
PCT/CN2019/095589
Other languages
French (fr)
Chinese (zh)
Inventor
董立平
Original Assignee
倪梓欣
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 倪梓欣 filed Critical 倪梓欣
Publication of WO2020015575A1 publication Critical patent/WO2020015575A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/16Engines characterised by number of cylinders, e.g. single-cylinder engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/16Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18Multi-cylinder engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/32Engines characterised by connections between pistons and main shafts and not specific to preceding main groups

Definitions

  • the present application belongs to the technical field of engines, and more particularly, relates to a multi-cylinder engine system.
  • Engine is a kind of equipment that can convert the chemical energy of fuel into mechanical energy.
  • multiple cylinders are usually arranged side by side to work together, and the pistons in each cylinder are connected together through the same crankshaft.
  • the crankshaft rotates to achieve the reciprocating action of each piston.
  • Cylinder engines still have defects such as large volume and poor heat dissipation.
  • the purpose of the present application is to provide a multi-cylinder engine system to solve the technical problems that conventional multi-cylinder engines cannot achieve high power effects in the prior art, but also have large volume and poor heat dissipation effects.
  • the technical solution adopted in the present application is to provide a multi-cylinder engine system having four strokes, which are an intake stroke, a compression stroke, an ignition stroke, and an exhaust stroke.
  • the multi-cylinder engine system includes a cylinder, a piston, a piston connecting rod, a crankshaft, and a driving device;
  • the number of the crankshafts is the same as the number of the cylinders, and one of the crankshafts is arranged between any two adjacent cylinders;
  • the number of the piston connecting rods is the same as that of the pistons.
  • Each of the pistons is provided with one of the piston connecting rods, and one end of the piston connecting rod extends into the air chamber and rotates with the piston. Connected, and the other end is outside the air chamber, the ends of the two piston rods located at the opposite ports of the two adjacent cylinders are both rotationally connected to the crankshaft, and any adjacent two of the two
  • the axis of the air chamber is staggered along the axis of the crankshaft.
  • the output shaft of the drive device is connected to each of the crankshafts to drive each of the crankshafts to rotate.
  • Each of the crankshafts drives the piston along the piston rod Reciprocatingly sliding along the axis of the air chamber, each of the cylinders sequentially completes the intake stroke, the compression stroke, the ignition stroke, and the exhaust stroke after the crankshaft connected thereto rotates 720 °.
  • a multi-cylinder engine system includes a cylinder, a piston, a piston connecting rod, a crankshaft, and a driving device.
  • the N cylinders are opposite to each other and form an N polygon.
  • the piston is provided with M.
  • M 2N, which is twice the number of cylinders.
  • each cylinder is equipped with two pistons to form a single-cylinder double-piston structure.
  • the two pistons in each cylinder are adapted to the air chamber and always maintain the direction. Instead of reciprocating sliding, each stroke of the stroke (the stroke is the work done by the piston from one extreme position to another extreme position) realizes one of the four strokes.
  • the number of crankshafts is the same as the number of cylinders.
  • a crankshaft is arranged between any two adjacent cylinders.
  • the output shaft of the driving device is connected to each crankshaft and drives each crankshaft to rotate around its own axis.
  • the number of piston connecting rods is the same as the number of pistons.
  • Two piston connecting rods are rotatably connected to each crankshaft, and the other ends of the two piston connecting rods respectively extend into the air chambers of the adjacent two cylinders and are respectively connected with the air chambers of the respective air chambers.
  • the pistons are connected in rotation.
  • each crankshaft rotates in the same direction, and the pistons are used to drive the pistons to reciprocate in the air chamber.
  • Each cylinder completes four in turn after the crankshaft connected to it is rotated 720 °.
  • the stroke satisfies the two pistons in each cylinder always reciprocating in opposite directions. Therefore, the multi-cylinder engine system has the following advantages:
  • the structure is simple and compact, which effectively reduces the space it takes up;
  • the N cylinders are opposite to each other and form an N polygon.
  • This decentralized arrangement is more effective than the traditional side-by-side arrangement, which can effectively increase the heat dissipation area and thus the heat dissipation effect;
  • the conventional engine arranges all connecting rods on the same crankshaft. This lengthens the length of the crankshaft. In order to ensure the rigidity of the crankshaft, the diameter of the crankshaft needs to be increased. This will cause the crankshaft to be too bulky. In addition, as the As the number of piston connecting rods increases, the coaxiality of the conventional crankshaft becomes worse. Compared with conventional crankshafts, the number of crankshafts in this embodiment is the same as the number of cylinders, and only two piston connecting rods are arranged on each crankshaft. The structure is simple, the whole is lightweight, the manufacturing process is simplified, and it is easier to realize the crankshaft. Coaxiality requirements to achieve smooth operation;
  • FIG. 1 is an exploded perspective view of a multi-cylinder engine system according to an embodiment of the present application
  • FIG. 2 is a perspective assembly view of a multi-cylinder engine system provided by an embodiment of the present application.
  • FIG. 3 is a perspective view of a crankshaft provided by an embodiment of the present application.
  • FIG. 4 is a partial perspective view of a gas distribution mechanism according to an embodiment of the present application.
  • FIG. 5 is a partially exploded perspective view of a gas distribution mechanism according to an embodiment of the present application.
  • FIG. 6 is a perspective view of a gas distribution shaft valve according to an embodiment of the present application.
  • FIG. 7 is a first working schematic diagram of a three-cylinder engine system provided by an embodiment of the present application.
  • FIG. 8 is a second working schematic diagram of a three-cylinder engine system provided by an embodiment of the present application.
  • FIG. 9 is a third working schematic diagram of a three-cylinder engine system provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of cooperation of a chain, a driving transmission sprocket, and a driven transmission sprocket in a power transmission assembly according to an embodiment of the present application.
  • connection should be understood in a broad sense unless otherwise specified and limited, for example, they may be fixed connections, detachable connections, or integrated; they may be mechanical
  • connection may also be an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, which may be the internal connection of the two elements or the interaction between the two elements.
  • Embodiment 1 of the present application provides a multi-cylinder engine system having four strokes, which are an intake stroke, a compression stroke, an ignition stroke, and an exhaust stroke in this order.
  • the multi-cylinder engine system 1 includes a cylinder 100, a piston 200, a piston connecting rod 300, a crankshaft 400, and a driving device (not shown in the figure).
  • Each cylinder 100 is provided with two pistons 200, and both pistons 200 are adapted to the air chamber 101 and slide back and forth along the axis of the air chamber 101 in opposite directions.
  • crankshafts 400 The number of the crankshafts 400 is the same as that of the cylinders 100, and one crankshaft 400 is arranged between any two adjacent cylinders 100.
  • the number of piston connecting rods 300 is the same as the number of pistons 200.
  • Each piston 200 is provided with a piston connecting rod 300.
  • One end of the piston connecting rod 300 extends into the air chamber 101 and is rotationally connected to the piston 200. The other end is located in the air chamber 101.
  • the ends of the two-piston connecting rod 300 located at the opposite ports of the two adjacent cylinders 100 are rotatably connected to the crankshaft 400, and the axes of any adjacent two air chambers 101 are staggered along the axis of the crankshaft 400 and driven.
  • the output shaft of the device is connected to each crankshaft 400 to drive each crankshaft 400 to rotate.
  • Each crankshaft 400 drives the piston 200 to reciprocate along the axis of the air chamber 101 through a piston connecting rod 300. After each cylinder 100 rotates 720 ° with the crankshaft 400 connected to it, Complete the intake stroke, compression stroke, ignition stroke, and exhaust stroke in this order.
  • each cylinder 100 is equipped with two pistons 200 to form a single-cylinder double-piston structure.
  • the two pistons 200 in each cylinder 100 are adapted to the air chamber 101 and always keep reciprocating in opposite directions.
  • Each stroke (the stroke is the work done by the piston 200 from one extreme position to another extreme position) is realized.
  • the number of crankshafts 400 is the same as the number of cylinders 100.
  • One crankshaft 400 is arranged between any two adjacent cylinders 100.
  • the output shaft of the driving device is connected to each crankshaft 400 and drives each crankshaft 400 to rotate around its own axis.
  • the number of piston connecting rods 300 is the same as the number of pistons 200.
  • Two crank connecting rods 300 are rotatably connected to each crankshaft 400, and the other ends of the two piston connecting rods 300 respectively extend into the air chambers 101 of two adjacent cylinders 100.
  • each crankshaft 400 rotates in the same direction under the driving of the driving device, and the pistons 200 are driven to reciprocate in the air chambers 101 by the piston connecting rods 300.
  • Each cylinder 100 completes four strokes in sequence after the crankshaft 400 connected to it is rotated 720 °, so that the two pistons 200 in each cylinder 100 always keep reciprocating sliding in opposite directions. Therefore, the multi-cylinder engine system 1 has the following advantages:
  • the structure is simple and compact, which effectively reduces the space it takes up;
  • the N cylinders 100 are opposite to each other and form an N polygon. This decentralized arrangement is more effective than the traditional side-by-side arrangement, which can effectively increase the heat dissipation area and thus the heat dissipation effect;
  • the conventional engine arranges all the connecting rods on the same crankshaft 400. In this way, the length of the crankshaft is extended. In order to ensure the rigidity of the crankshaft, the diameter of the crankshaft needs to be increased. This will cause the crankshaft to be too bulky. As the number of piston connecting rods 300 increases, the coaxiality of the conventional crankshaft becomes worse.
  • the number of crankshafts 400 in this embodiment is the same as the number of cylinders 100, and only two piston connecting rods 300 are arranged on each crankshaft 400. The structure is simple, the whole is light, the manufacturing process is simplified, and it is easier. To achieve the coaxiality requirements of each crankshaft 400 and achieve smooth operation;
  • each cylinder 100 is provided, and each cylinder 100 is provided with two pistons 200, which effectively improves the engine output power;
  • each cylinder 100 because two pistons 200 are arranged in each cylinder 100, and the two pistons 200 are adapted to the air chamber 101 and always keep reciprocating in opposite directions, which will cause each cylinder 100 to be in a state of force balance and reduce each
  • the vibration frequency of the cylinder 100 further reduces the vibration of the entire system and improves the smoothness of operation.
  • the multi-cylinder engine system 1 further includes an ignition device (not shown in the figure).
  • the number of ignition devices is the same as that of the cylinder 100.
  • Each ignition device is installed on a side of the middle of the one cylinder 100. On the wall and start during the ignition stroke.
  • the multi-cylinder engine system 1 is applicable to both a gasoline engine and a diesel engine.
  • the ignition device is a spark plug; and when the multi-cylinder engine system 1 is used in a diesel engine, the ignition device is an injector.
  • the N cylinders 100 sequentially execute the intake stroke, compression stroke, ignition stroke, and exhaust stroke in a clockwise or counterclockwise direction as each crankshaft 400 rotates. It can be understood that any two adjacent cylinders 100 The strokes performed by the cylinder 100 are different. In this way, on the one hand, it is beneficial for the multi-cylinder engine system to dissipate heat, and on the other hand, it realizes cyclic operation, which further improves the smoothness of the operation.
  • the multi-cylinder engine system 1 further includes a cylinder block 600.
  • the cylinder block 600 includes a main frame body 610.
  • the main frame body 610 has a mounting groove 601 whose opening faces outward. The number is the same as that of the cylinder 100.
  • Each mounting groove 601 is evenly arranged on the peripheral side of the main frame body 610 and communicates with the end to end.
  • Each cylinder 100 is fixed in a mounting groove 601, and each crankshaft 400 is rotatably connected to the main frame body 610. . In this way, mounting conditions are provided for each of the cylinders 100 and each of the crankshafts 400.
  • the main frame body 610 includes an upper cover plate 611, a lower cover plate 612, and a connecting frame body 613 connecting the upper cover plate 611 and the lower cover plate 612.
  • the through hole 602 and the lower cover plate 612 are provided with a lower through hole 603, the upper through hole 602 is opposite to the lower through hole 603, the upper end of the connecting frame body 613 is connected to the upper through hole 602 of the upper cover plate 611 and the lower end is connected to the lower
  • the upper cover plate 611, the lower cover plate 612, and the connecting frame body 613 collectively form N mounting grooves 601.
  • the opening of the upper through hole 602 and the lower through hole 603 effectively reduces the weight of the cylinder frame 600.
  • the upper through hole 602 and the lower through hole 603 are N-shaped holes
  • the upper cover plate 611 and the lower cover plate 612 are N-shaped plates
  • the inner plate edge of the upper cover plate 611 corresponds to the outer plate edge
  • the inner plate edge of the lower cover plate 612 corresponds to the outer plate edge.
  • the connecting frame body 613 includes a plurality of connecting plates 6131 and a central post 6132.
  • the central post 6132 extends from the upper through-hole 602 to the lower through-hole 603, and each connecting plate 6131 is distributed on the peripheral side of the central post 6132.
  • the side plate edges are connected to the side wall of the central post 6132, and the other side plate edges are connected to the upper cover plate 611 and the lower cover plate 612. In this way, not only the upper cover plate 611 and the lower cover plate 612 are supported, but also the weight of the cylinder frame 600 can be reduced.
  • the number of the connection plates 6131 is N.
  • the multi-cylinder engine system 1 further includes a power transmission component, which is used to transmit the power of the driving device to the crankshafts to drive the crankshafts to rotate synchronously.
  • the power transmission assembly includes a transmission sprocket (not shown), a chain 830, a driving transmission sprocket 810, and a driven transmission sprocket 820;
  • the transmission chain shaft is inserted into the main frame body 610 and is rotatably connected to the main frame body 610.
  • the axis of the transmission chain shaft is the same as the centerline formed by the N crankshafts 400.
  • the output shaft of the driving device is connected to the transmission chain shaft and rotates synchronously;
  • the drive sprocket 810 is located on the upper side of the main frame body 610 and is fixedly connected to the drive sprocket shaft.
  • the axis of the drive sprocket 810 is the same as the axis of the drive sprocket shaft.
  • the number of driven transmission sprocket 820 is the same as the number of crankshaft 400.
  • Each driven transmission sprocket 820 is located on the upper side of the main frame and fixed to a crankshaft 400.
  • the axis of the driven transmission sprocket 820 and the crankshaft 400 are The rotation axis is the same.
  • Each driven transmission sprocket 820 surrounds the periphery of the driving transmission sprocket 810.
  • the chain 830 engages the driving transmission sprocket 810 and each driven transmission sprocket 820.
  • the driving device drives the transmission chain shaft to rotate and the transmission chain
  • the active transmission sprocket 810 on the shaft drives the chain 830 to rotate, so that the chain 830 drives each driven transmission sprocket 820 to rotate, and each driven transmission sprocket 820 respectively drives the corresponding crankshaft 400 to rotate, thereby achieving power transmission from the driving device to Each crankshaft 400.
  • the driving transmission sprocket 810, and the driven transmission sprocket 820 not only power transmission can be realized, but also the cost is low, and it is easy to manufacture.
  • the power transmission assembly 700 includes a transmission shaft 710, a driving transmission gear (not shown in the figure), and a driven transmission gear 720.
  • the transmission shaft 710 is inserted into the main frame body 610 and is rotatably connected to the main frame body 610.
  • the axis of the transmission shaft 710 is the same as the center line formed by the N crankshafts 400.
  • the output shaft of the driving device is connected to the transmission shaft 710 and rotates synchronously.
  • the driving transmission gear is located on the upper side of the main frame body 610 and is fixedly connected to the transmission shaft 710.
  • the axis of the driving transmission gear is the same as the axis of the transmission shaft 710.
  • the number of driven transmission gears 720 is the same as the number of crankshafts 400.
  • Each driven transmission gear 720 is located on the upper side of the main body 610 and is fixed to a crankshaft 400.
  • the axis of the driven transmission gear 720 and the rotation of the crankshaft 400 The axes are the same, and each driven transmission gear 720 surrounds the periphery of the driving transmission gear and meshes with the driving transmission gear. In this way, the driving force is transmitted.
  • a transmission hole 604 is formed on one end of the central column 6132 facing the other end, and a transmission shaft 710 is passed through the transmission hole 604 and is rotatably connected to the transmission hole 604.
  • the power transmission assembly 700 further includes intermediate gears (not shown in the figure), and the number of the intermediate gears is the same as the number of the driven transmission gears 720.
  • the cylinder frame 600 further includes intermediate shafts 620 connected to the upper side of the main frame body 610 and located between the transmission shaft 710 and each of the crankshafts 400.
  • the number of the intermediate shafts 620 is the same as the number of intermediate gears, and each intermediate gear is rotatably connected to one
  • the intermediate shaft 620 is meshed with the driving gear and a driven gear 720, respectively.
  • the axis of the intermediate gear is the same as the axis of the intermediate shaft 620. In this way, on the one hand, the transmission of driving force is achieved, and on the other hand, the speed and torque output by the driving device can be adjusted by the size of each intermediate gear.
  • each crankshaft 400 includes two main shafts 410, three cranks 420, and two connecting rod journals 430.
  • a connecting rod journal 430 is connected between any two adjacent cranks 420.
  • the two main shafts 410 are respectively connected to the two cranks 420 at the two ends of the three cranks 420.
  • Each connecting rod journal 430 is rotatably connected to a piston connecting rod 300.
  • the axes of the two main shafts 410 are the same, that is, the axes of the two main shafts 410 are arranged in parallel. .
  • the axes of the two connecting rod journals 430 are arranged parallel to the axes of the two main shafts 410, and the two connecting rod journals 430 are located on both sides of the two main shafts 410, respectively.
  • the central axis of the two main shafts 410 and the central axis of the two connecting rod journals 430 Coplanar setting.
  • the crank 420 in the middle is in the shape of a circular plate
  • the axis of the crank 420 in the middle is the same as the axis of the two main shafts 410
  • the cranks 420 at the two ends are bar-shaped.
  • the multi-cylinder engine system 1 further includes an air distribution mechanism 500.
  • the number of the air distribution mechanism 500 is the same as that of the cylinder 100 and corresponds to the one-to-one and fixed to the cylinder 100.
  • Each cylinder 100 is provided with a vent hole (not shown in the figure) that communicates with the air chamber 101.
  • Each gas distribution mechanism 500 has a gas distribution hole 501.
  • the vent hole communicates with the gas distribution hole 501.
  • the output shaft of the driving device and each gas distribution mechanism Connected to 500, each valve distribution mechanism 500 supplies air to the air chamber 101 during the intake stroke, and exhausts the gas in the air chamber 101 during the exhaust stroke.
  • the valve hole 501 is closed during the compression stroke and the ignition stroke.
  • the cross-sectional shape of the air distribution hole 501 is one of a circle, an oval, and a polygon, and the polygon may be a triangle, a square, or a rectangle.
  • each cylinder 100 is provided with an air distribution mechanism 500.
  • the ventilation holes on the cylinder 100 communicate with the air distribution holes 501 on the gas distribution mechanism 500.
  • Each gas distribution mechanism 500 supplies air to the air chamber 101 during the intake stroke, and During the exhaust stroke, the gas in the gas chamber 101 is exhausted, and at the same time, the gas distribution hole 501 is closed during the compression stroke and the ignition stroke.
  • each gas distribution mechanism 500 includes a gas distribution housing 510, a gas distribution shaft valve 520, and a gas distribution shaft 530.
  • the gas distribution shaft valve 520 is connected to the gas distribution shaft 530 and two With the same axis, the valve shaft 520 is provided with an intake passage 521 and an exhaust passage 522.
  • the gas distribution housing 510 has a gas distribution volume 506 and an air inlet 502, an exhaust port 503, and a shaft hole 504 communicating with the gas distribution volume 506.
  • the gas distribution shaft valve 520 is placed in the gas distribution volume 506 and communicates with the gas distribution volume.
  • the cavity 506 is adapted.
  • One end of the gas distribution shaft 530 penetrates through the shaft hole 504 and is connected in parallel with the driving device to drive the gas distribution shaft valve 520 to rotate.
  • the gas distribution hole 501 is opened in the gas distribution housing 510 and communicates with the gas distribution volume.
  • the cavity 506 is in communication.
  • the intake passage 521 communicates with the intake port 502 and the air distribution hole 501 when the cylinder 100 is in the intake stroke to allow external air to be introduced into the cylinder 100.
  • the exhaust passage 522 communicates with the gas distribution hole 501 and the exhaust port 503 when the cylinder 100 is in the exhaust stroke to discharge the gas in the cylinder 100.
  • the valve shaft valve 520 blocks the intake port 502, the exhaust port 503, and the valve port 501 when the cylinder 100 is in the compression stroke and the ignition stroke.
  • the gas distribution mechanism 500 uses a gas distribution phase control technology.
  • the gas distribution shaft valve 520 is provided with an intake passage 521 and an exhaust passage 522, and the gas distribution shaft valve 520 is rotatably connected through the gas distribution shaft 530.
  • the gas distribution rotating shaft 530 is connected to the output shaft of the driving device, and rotates under the driving of the driving device, so as to realize dual control of variable gas distribution phase and intake and exhaust time.
  • the valve shaft 520 is driven through the corresponding angle by the driving device.
  • the intake passage 521 communicates with the intake port 502 and the valve hole 501 to allow external air to be introduced into the cylinder 100;
  • the valve shaft 520 is driven through the corresponding angle by the driving device.
  • the exhaust passage 522 communicates with the air distribution hole 501 and the exhaust port 503 to exhaust the gas in the cylinder 100.
  • the valve shaft 520 is driven through the corresponding angle by the driving device.
  • the valve shaft 520 blocks the intake port 502, the exhaust port 503, and the valve hole 501.
  • the gas distribution shaft valve 520 is driven through the corresponding angle by the driving device.
  • the gas distribution shaft valve 520 blocks the intake port 502, the exhaust port 503, and the distribution hole 501.
  • the valve distribution mechanism 500 Through the valve distribution mechanism 500, the effects of simplifying the mechanical structure, improving reliability, reducing power consumption, and reducing weight, volume, and noise are achieved while perfecting the valve distribution function of the piston engine.
  • the air inlet 502 and the air outlet 503 are separated from the two opposite side cavity walls of the gas distribution volume 506 of the gas distribution housing 510.
  • the gas distribution housing 510 is provided with an annular mounting groove 505 on the cavity wall of the gas distribution volume 506.
  • the annular positioning groove 505 is located on the outer periphery of the gas distribution hole 501.
  • the gas distribution mechanism 500 further includes a sealing ring (not shown in the figure). Out), one end of the seal ring is inserted into the annular installation groove 505, and the other end is against the outer surface of the valve shaft 520, which prevents the gas from leaking out through the valve hole 501 during the compression stroke of the cylinder 100.
  • the seal ring is in contact with the outer surface of the valve shaft 520.
  • the sealing ring is a graphite sealing ring.
  • the intake passage 521 has a first inlet port 5211 and a first outlet port 5212
  • the exhaust passage 522 has a second inlet port 5221 and a second outlet port 5222.
  • the first air outlet port 5212 and the second air inlet port 5221 are located on the same radial plane perpendicular to the axis of the valve shaft 520.
  • the first outlet port 5212 is docked with the air distribution hole 501 when the cylinder 100 is in the intake stroke.
  • the second inlet port 5221 is docked with the valve port 501 when the cylinder 100 is in the exhaust stroke.
  • the air cylinder 100 only needs to be provided with a vent hole communicating with the air chamber 101, and the gas distribution housing 510 only needs to be provided with a vent hole 501 communicating with the vent hole, which effectively simplifies the structure and simplifies production Process to improve the alignment accuracy of the intake passage 521 and the exhaust passage 522 with the air distribution hole 501.
  • the multi-cylinder engine system 1 further includes a valve transmission component (not shown in the figure).
  • the valve transmission component includes a timing driving gear, a timing driven gear, and a tooth profile synchronization.
  • Belt, the timing driving gear is located on the lower side of the main frame body 610 and is fixedly connected with the transmission shaft 710.
  • the axis of the timing driving gear is the same as the axis of the transmission shaft 710.
  • timing driven gears The number of timing driven gears is the same as that of the valve distribution mechanism 500.
  • Each timing driven gear is located on the lower side of the main body 610 and is respectively located at an end of the valve shaft 530 outside the valve housing 510. Fixedly connected, the axis of the timing driven gear is the same as the axis of the valve shaft 530.
  • the toothed timing belt is connected with the timing driving gear and each timing driven gear.
  • the timing driving gear and each timing driven gear are meshed with the toothed timing belt.
  • the timing driving gear drives each timing through the toothed timing belt.
  • the driven gear rotates synchronously.
  • each timing driven gear is located on the inner side of the toothed timing belt and meshes with the toothed timing belt.
  • the timing driving gear is located outside the magnetic timing belt and meshes with the toothed timing belt.
  • the V-belt forms a V-shape when installed.
  • each timing driven gear is twice the diameter of the timing driving gear. Understandably, when the timing driving gear rotates twice, each timing driven gear rotates once, realizing dual control of variable valve phase and intake and exhaust time.
  • each of the gas distribution mechanisms 500 further includes a pressure boosting device 560 disposed in the gas distribution volume 506.
  • the pressure boosting device 560 includes a pressure boosting fan 561 and a pressure boosting fan.
  • 561 is connected to a transmission structure 562 for driving the booster fan 561 to operate.
  • the transmission structure 562 is connected to the air distribution shaft 530 and is linked with the air distribution shaft 530.
  • the gas distribution shaft valve 520 has a first gas distribution end 523 and a second gas distribution end 524 opposite to the first gas distribution end 523.
  • the second gas distribution end 524 faces the shaft hole 504, and the supercharging device 560 and the first The end faces of the gas distribution end 523 face each other.
  • the first air inlet port 5211 is opened on an end surface of the first air distribution end 523, and the booster fan 561 is relatively located between the end surface of the first air distribution end 523 and the air inlet 502.
  • the air inlet 502 is opposite to the end surface of the first air distribution end 523.
  • the booster fan 561 is provided between the end surface of the first air distribution end 523 and the air inlet 502.
  • the booster fan 561 has a suction side and a discharge side, wherein the suction side is opposite to the air inlet 502 and the exhaust side
  • the wind side is opposite to the first intake port 5211 of the intake passage 521. It can be understood that when the cylinder 100 is in the intake stroke, the valve shaft 520 is driven by the driving device to rotate through the corresponding angle.
  • the intake passage 521 communicates with the air inlet 502 and the air distribution hole 501, and the pressure of the gas introduced from the outside into the air inlet passage 521 can be increased by the setting of the booster fan 561 to increase the air intake. Since the booster fan 561 is connected to the air distribution shaft 530 through the transmission structure 562 and operates with the rotation of the air distribution shaft 530, in this way, when the rotation speed of the air distribution shaft 530 increases (increases the throttle), the booster fan 561 controls The amount of intake air also increases, and at the same time, the pressure of the gas in the intake passage 521 increases, so that the amount of intake air entering the cylinder 100 is increased, so that the cylinder 100 generates sufficient driving force.
  • the transmission structure 562 includes an outer ring gear 563, a sun gear 564, a planet carrier 565, and a plurality of planetary gears 566.
  • the outer ring gear 563 is sleeved on the gas distribution shaft 530 and is matched with The air rotating shaft 530 rotates synchronously.
  • Each planetary gear 566 is located within the outer ring gear 563 and is in mesh with the outer ring gear 563.
  • the sun gear 564 is sleeved on the air distribution shaft 530 and cooperates with the air distribution shaft 530 with a clearance.
  • Each planet gear 566 Both are in mesh with the sun gear 564.
  • the booster fan 561 is connected to one end of the sun gear 564 and rotates with the rotation of the sun gear 564.
  • the planet carrier 565 is located between the sun gear 564 and the booster fan 561 and is fixed to the air distribution chamber. 506.
  • Each planetary gear 566 is rotatably connected to the planet carrier 565.
  • the rotation speed of the booster fan 561 is n
  • the number of teeth of the outer ring gear 563 is Z1
  • the number of teeth of the sun gear 564 is Z2
  • the speed increase of the booster fan 561 is realized through the transmission structure.
  • the transmission structure 562 further includes a shaft sleeve 567, which is sleeved on the gas distribution shaft 530 and fits with the gas distribution shaft 530.
  • One end of the shaft sleeve 567 is connected to the sun gear 564. And the other end is connected to the booster fan 561, and the side of the sleeve 567 faces the air inlet 502. In this way, avoid blocking the air inlet.
  • the planet carrier 565 includes a main frame body 5651 and a plurality of fixed shafts 5652 connected to the main frame body 5651.
  • Each of the fixed shafts 5652 is connected to one of the main frame bodies 5651 facing away from the booster fan 561.
  • each planetary gear 566 is rotatably sleeved on a fixed shaft 5652
  • the main frame body 5651 is provided with a sleeve hole 5653
  • the main frame body 5651 is sleeved on the shaft sleeve 567 and fixed to the gas distribution cavity 506, and Clearance fit with sleeve 567.
  • the sun gear 564, the shaft sleeve 567, and the booster fan 561 are integrally formed.
  • the gas distribution shaft valve 520 is provided on the end surface of the first gas distribution end 523 and along the axis of the gas distribution shaft valve 520, and a shaft hole 525 is opened.
  • One end of the gas distribution shaft 530 passes through the shaft hole 525 and interferes.
  • the axis of the valve shaft 530 is the same as the axis of the valve shaft 520.
  • One end of the valve shaft 530 protrudes from the shaft hole 504 to the outside of the valve housing 510 and is connected to the output shaft of the driving device.
  • the other end is rotatably connected to the cavity wall of the valve chamber 506 and is axially limited to the valve.
  • the gas distribution mechanism 500 further includes a first bearing 540 and a second bearing 550.
  • the end of the gas distribution shaft 530 opposite to the first gas distribution end 523 is inserted into the bearing hole of the first bearing 540 and axially It is limited to the bearing hole, and the end of the gas distribution shaft 530 opposite to the second gas distribution end 524 is penetrated in the bearing hole of the second bearing 550 and is axially limited to the bearing hole.
  • the gas distribution housing 510 is provided with a first mounting hole 507 for mounting the first bearing 540 in a cavity wall of the gas distribution volume 506 opposite to one end of the gas distribution shaft 530, and the outer ring of the first bearing 540 is fixed Within the first mounting hole 507, the first mounting hole 507 is a blind hole.
  • the gas distribution housing 510 is provided with a second mounting hole 508 for mounting the second bearing 550 on the cavity wall of the gas distribution volume 506.
  • the outer ring of the second bearing 550 is fixed to the second mounting hole 508, wherein the shaft hole 504 and the first The two mounting holes 508 are opposite and communicate with each other.
  • the gas distribution housing 510 is provided with a plug hole 509, wherein the plug hole 509 is staggered from the gas distribution volume 506 and communicates with the air chamber 101 of the cylinder 100 for plugging a spark plug or fuel injection mouth.
  • the gas distribution shaft valve 520 is provided with a booster groove 527 on the end surface of the first gas distribution end 523, and a booster fan 561 is inserted in the booster groove 527 to improve the gas boosting efficiency, and the structure is compact and effective. Reduce axial distance.
  • the first intake port 5211 of the intake passage 521 is opened at the groove bottom of the supercharging groove 527.
  • 180 °.
  • the axis of the main shaft 410 of the crankshaft 400 and the axis of the two connecting rod journals 430 of each crankshaft 400 are in the same plane, and the two connecting rod journals 430 are symmetrically arranged with respect to the axis of the main shaft 410 of the crankshaft 400.
  • the planes formed by the axes of the main axes 410 of the three crankshafts 400 and the axes of the respective two connecting rod journals 410 are always parallel.
  • the crankshaft 400 does not need to consider the problem of counterweight, and has high running stability.
  • the positions of the three crankshafts 400 are initial positions.
  • the first cylinder 110a, the second cylinder 120a, and the third cylinder 130a all have initial states, and the first cylinder 110a starts to enter the ignition stroke;
  • the positions of the three crankshafts 400 are shown in FIG. 8.
  • the second cylinder 120 a starts to enter the ignition stroke;
  • the three crankshafts 400 continue to rotate 240 ° clockwise, the three The position of each crankshaft 400 is shown in FIG. 9.
  • the third cylinder 130 a starts to enter the ignition stroke.
  • the first cylinder 110a, the second cylinder 120a, and the third cylinder 130a are returned to the initial state, so that the cycle rotates repeatedly to make the three-cylinder engine system run simultaneously.

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Abstract

A multi-cylinder engine system, comprising cylinders (100), pistons (200), piston connecting rods (300), crankshafts (400), and a driving device, wherein N cylinders (100) are provided, where N=3, the cylinders (100) are opposite to one another in an end-to-end manner and jointly enclose an N-sided polygon; each of the cylinders (100) is provided with two pistons (200) to form a single-cylinder, dual-piston structure, and the two pistons (200) in each of the cylinders (100) are adapted to a gas chamber and always keep reciprocally sliding in opposite directions; the number of the crankshafts (400) is equal to that of the cylinders (100), one crankshaft (400) is arranged between any two adjacent cylinders (100), and an output shaft of the driving device is connected to each of the crankshafts (400) and drives each of the crankshafts (400) to rotate about its own axis; two piston connecting rods (300) are rotatably connected to each of the crankshafts (400), and the other ends of the two piston connecting rods (300) project into the gas chambers of the two adjacent cylinders (100) respectively and are rotatably connected to the pistons (200) in each of the gas chambers respectively; and under the drive of the driving device, each of the piston connecting rods (300) drives the pistons (200) to reciprocally slide, and each of the cylinders (100) completes four strokes when the crankshaft (400) connected thereto rotates by 720°. The multi-cylinder engine system is of a simple and compact structure, and operates steadily.

Description

一种多缸发动机***Multi-cylinder engine system
本申请要求于2018年07月16日提交中国专利局,申请号为201821141620.7,发明名称为“一种多缸发动机***”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。This application claims priority from a Chinese patent application filed on July 16, 2018, with the application number 201821141620.7, and the invention name is "a multi-cylinder engine system", the entire contents of which are incorporated herein by reference.
技术领域Technical field
本申请属于发动机技术领域,更具体地说,是涉及一种多缸发动机***。The present application belongs to the technical field of engines, and more particularly, relates to a multi-cylinder engine system.
背景技术Background technique
发动机(Engine)是一种能够将燃料的化学能转化成机械能的设备,为了满足大功率需求,通常并排设置多个气缸一同动作,而各气缸内的活塞则均通过同一曲轴连接在一起,通过曲轴转动,实现各个活塞往复动作,但是,同一曲轴很难保证各个曲拐的同轴度,无法确保各活塞行程的精确度,这样,无法确保发动机能够达到高功率的效果,而且,传统的多缸发动机依然存在体积大、散热效果差等缺陷。Engine (Engine) is a kind of equipment that can convert the chemical energy of fuel into mechanical energy. In order to meet the high power requirements, multiple cylinders are usually arranged side by side to work together, and the pistons in each cylinder are connected together through the same crankshaft. The crankshaft rotates to achieve the reciprocating action of each piston. However, it is difficult to ensure the coaxiality of each crank and the accuracy of the stroke of each piston in the same crankshaft. In this way, the high-power effect of the engine cannot be guaranteed. Cylinder engines still have defects such as large volume and poor heat dissipation.
技术问题technical problem
本申请的目的在于提供一种多缸发动机***,以解决现有技术中存在传统的多缸发动机无法达到高功率效果,而且还具有体积大和散热效果差的技术问题。The purpose of the present application is to provide a multi-cylinder engine system to solve the technical problems that conventional multi-cylinder engines cannot achieve high power effects in the prior art, but also have large volume and poor heat dissipation effects.
技术解决方案Technical solutions
为实现上述目的,本申请采用的技术方案是:提供一种多缸发动机***,其具有四个冲程,分别为进气冲程、压缩冲程、点火冲程和排气冲程。所述多缸发动机***包括气缸、活塞、活塞连杆、曲轴和驱动装置;To achieve the above object, the technical solution adopted in the present application is to provide a multi-cylinder engine system having four strokes, which are an intake stroke, a compression stroke, an ignition stroke, and an exhaust stroke. The multi-cylinder engine system includes a cylinder, a piston, a piston connecting rod, a crankshaft, and a driving device;
所述气缸设置有N个,其中,N=3,各所述气缸具有首尾连通的气室,各所述气缸首尾相对并形成N边形;N cylinders are provided, where N = 3, each of the cylinders has an air chamber communicating end to end, and each of the cylinders is opposite to each other and forms an N polygon;
所述活塞设置有M个,其中,M=2N,各所述气缸分别配置有两个所述活塞且两所述活塞均与所述气室相适配并沿所述气室的轴线并保持方向相反的往复滑动;M pistons are provided, where M = 2N, and each of the cylinders is respectively provided with two of the pistons, and both of the pistons are adapted to the air chamber and are held along the axis of the air chamber. Back and forth sliding in opposite directions;
所述曲轴设置的数量与所述气缸设置的数量相同,任意相邻的两所述气缸之间配置有一个所述曲轴;The number of the crankshafts is the same as the number of the cylinders, and one of the crankshafts is arranged between any two adjacent cylinders;
所述活塞连杆设置的数量与所述活塞设置的数量相同,各所述活塞分别配置有一个所述活塞连杆,所述活塞连杆的一端伸入所述气室并与所述活塞转动连接,且另一端位于所述气室之外,两所述活塞连杆中位于相邻的两所述气缸相对的端口处的端部均与所述曲轴转动连接,任意相邻的两所述气室的轴线沿着所述曲轴的轴线相错,所述驱动装置的输出轴与各所述曲轴连接以驱动各所述曲轴转动,各所述曲轴通过所述活塞连杆带动所述活塞沿着所述气室的轴线往复滑动,各所述气缸在与其连接的所述曲轴旋转720°后依次完成所述进气冲程、所述压缩冲程、所述点火冲程和所述排气冲程。The number of the piston connecting rods is the same as that of the pistons. Each of the pistons is provided with one of the piston connecting rods, and one end of the piston connecting rod extends into the air chamber and rotates with the piston. Connected, and the other end is outside the air chamber, the ends of the two piston rods located at the opposite ports of the two adjacent cylinders are both rotationally connected to the crankshaft, and any adjacent two of the two The axis of the air chamber is staggered along the axis of the crankshaft. The output shaft of the drive device is connected to each of the crankshafts to drive each of the crankshafts to rotate. Each of the crankshafts drives the piston along the piston rod Reciprocatingly sliding along the axis of the air chamber, each of the cylinders sequentially completes the intake stroke, the compression stroke, the ignition stroke, and the exhaust stroke after the crankshaft connected thereto rotates 720 °.
有益效果Beneficial effect
多缸发动机***包括气缸、活塞、活塞连杆、曲轴和驱动装置,其中,气缸设置有N个,而N=3,N个气缸首尾相对并共同围成N边形,活塞设置有M个,而M=2N,即是气缸数量的两倍,可以理解地,每个气缸配置有两个活塞,形成单缸双活塞结构,每个气缸内的两活塞与气室相适配并始终保持方向相反的往复滑动,每滑动一个冲程(所述的冲程为活塞从一个极限位置到另一个极限位置做的功)便实现四个冲程中的一个冲程。曲轴的数量与气缸的数量相同,任意两个相邻的气缸之间配置有一个曲轴,驱动装置的输出轴与各曲轴连接并驱动各曲轴绕自身轴线转动。活塞连杆的数量与活塞的数量相同,每个曲轴上转动连接有两个活塞连杆,而两活塞连杆的另一端分别伸入相邻的两气缸的气室内并分别与各气室内的活塞转动连接,在驱动装置的驱动下,各曲轴均绕同一方向转动,并通过各活塞连杆带动各活塞于气室内往复滑移,各气缸在与其连接的曲轴旋转720°后依次完成四个冲程,满足各气缸内的两活塞始终保持方向相反的往复滑动。因此,该多缸发动机***具有如下优势:A multi-cylinder engine system includes a cylinder, a piston, a piston connecting rod, a crankshaft, and a driving device. Among them, there are N cylinders, and N = 3. The N cylinders are opposite to each other and form an N polygon. The piston is provided with M. M = 2N, which is twice the number of cylinders. Understandably, each cylinder is equipped with two pistons to form a single-cylinder double-piston structure. The two pistons in each cylinder are adapted to the air chamber and always maintain the direction. Instead of reciprocating sliding, each stroke of the stroke (the stroke is the work done by the piston from one extreme position to another extreme position) realizes one of the four strokes. The number of crankshafts is the same as the number of cylinders. A crankshaft is arranged between any two adjacent cylinders. The output shaft of the driving device is connected to each crankshaft and drives each crankshaft to rotate around its own axis. The number of piston connecting rods is the same as the number of pistons. Two piston connecting rods are rotatably connected to each crankshaft, and the other ends of the two piston connecting rods respectively extend into the air chambers of the adjacent two cylinders and are respectively connected with the air chambers of the respective air chambers. The pistons are connected in rotation. Driven by the driving device, each crankshaft rotates in the same direction, and the pistons are used to drive the pistons to reciprocate in the air chamber. Each cylinder completes four in turn after the crankshaft connected to it is rotated 720 °. The stroke satisfies the two pistons in each cylinder always reciprocating in opposite directions. Therefore, the multi-cylinder engine system has the following advantages:
第一、结构简单且紧凑,有效缩小其所占用的空间;First, the structure is simple and compact, which effectively reduces the space it takes up;
第二、N个气缸首尾相对并共同围成N边形,这种分散式布置形式相较于传统的并排布置的形式,可有效提高散热面积,进而提高散热效果;Second, the N cylinders are opposite to each other and form an N polygon. This decentralized arrangement is more effective than the traditional side-by-side arrangement, which can effectively increase the heat dissipation area and thus the heat dissipation effect;
第三、传统的发动机将所有的连杆布置于同一曲轴上,这样,延长了曲轴的长度,为了保证曲轴的刚度,需要增大曲轴的直径,这会造成曲轴整体过于笨重,另外,随着活塞连杆的数量增加,传统的曲轴的同轴度就会越差。相较于传统的曲轴,本实施例中的曲轴数量与气缸数量相同,并且每个曲轴上只配置有两个活塞连杆,结构简单,整体轻巧,精简了制造工艺,较容易实现各曲轴的同轴度要求,实现平稳运转;Third, the conventional engine arranges all connecting rods on the same crankshaft. This lengthens the length of the crankshaft. In order to ensure the rigidity of the crankshaft, the diameter of the crankshaft needs to be increased. This will cause the crankshaft to be too bulky. In addition, as the As the number of piston connecting rods increases, the coaxiality of the conventional crankshaft becomes worse. Compared with conventional crankshafts, the number of crankshafts in this embodiment is the same as the number of cylinders, and only two piston connecting rods are arranged on each crankshaft. The structure is simple, the whole is lightweight, the manufacturing process is simplified, and it is easier to realize the crankshaft. Coaxiality requirements to achieve smooth operation;
第四、通过N各气缸设置,而且每个气缸配置有两个活塞,有效提高发动机输出功率;Fourth, it is set by N cylinders, and each cylinder is equipped with two pistons, which effectively improves the engine output power;
第五、由于各气缸内配置有两个活塞,并且两个活塞与气室相适配并始终保持方向相反的往复滑动,这会促使各气缸处于受力平衡状态,降低各气缸的振动频率,进而降低整个***的振动,提高运行的平稳度。Fifth, because two pistons are arranged in each cylinder, and the two pistons are adapted to the air chamber and always keep reciprocating in the opposite direction, this will cause each cylinder to be in a state of force balance and reduce the vibration frequency of each cylinder. Then reduce the vibration of the entire system and improve the smoothness of operation.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本申请实施例提供的多缸发动机***的立体分解图;1 is an exploded perspective view of a multi-cylinder engine system according to an embodiment of the present application;
图2是本申请实施例提供的多缸发动机***的立体组装图;2 is a perspective assembly view of a multi-cylinder engine system provided by an embodiment of the present application;
图3是本申请实施例提供的曲轴的立体图;3 is a perspective view of a crankshaft provided by an embodiment of the present application;
图4是本申请实施例提供的配气机构的局部立体图;4 is a partial perspective view of a gas distribution mechanism according to an embodiment of the present application;
图5是本申请实施例提供的配气机构的局部立体分解图;5 is a partially exploded perspective view of a gas distribution mechanism according to an embodiment of the present application;
图6是本申请实施例提供的配气轴阀的立体图;6 is a perspective view of a gas distribution shaft valve according to an embodiment of the present application;
图7是本申请实施例提供的三缸发动机***的第一工作示意图;7 is a first working schematic diagram of a three-cylinder engine system provided by an embodiment of the present application;
图8是本申请实施例提供的三缸发动机***的第二工作示意图;8 is a second working schematic diagram of a three-cylinder engine system provided by an embodiment of the present application;
图9是本申请实施例提供的三缸发动机***的第三工作示意图;9 is a third working schematic diagram of a three-cylinder engine system provided by an embodiment of the present application;
图10是本申请实施例的动力传动组件中链条、主动传动链轮以及从动传动链轮的配合示意图。FIG. 10 is a schematic diagram of cooperation of a chain, a driving transmission sprocket, and a driven transmission sprocket in a power transmission assembly according to an embodiment of the present application.
本发明的实施方式Embodiments of the invention
下面详细描述本申请的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本申请,而不能理解为对本申请的限制。Hereinafter, embodiments of the present application will be described in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.
在本申请的描述中,需要理解的是,术语“厚度”、“上”、“下”、“垂直”、“平行”、“底”、“角”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。In the description of this application, it should be understood that the orientation or position relationship indicated by the terms "thickness", "upper", "lower", "vertical", "parallel", "bottom", "angle" and the like is based on the attached The orientation or position relationship shown in the figure is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, structure and operation in a specific orientation, so it cannot be understood as Application restrictions.
在本申请中,除非另有明确的规定和限定,术语“安装”、“连接”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。In this application, the terms "installation", "connection" and other terms should be understood in a broad sense unless otherwise specified and limited, for example, they may be fixed connections, detachable connections, or integrated; they may be mechanical The connection may also be an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, which may be the internal connection of the two elements or the interaction between the two elements.
请同时参阅图1和图5,本申请实施例一提供一种多缸发动机***,其具有四个冲程,依次为进气冲程、压缩冲程、点火冲程和排气冲程。多缸发动机***1包括气缸100、活塞200、活塞连杆300、曲轴400和驱动装置(图中未示出)。Please refer to FIG. 1 and FIG. 5 at the same time. Embodiment 1 of the present application provides a multi-cylinder engine system having four strokes, which are an intake stroke, a compression stroke, an ignition stroke, and an exhaust stroke in this order. The multi-cylinder engine system 1 includes a cylinder 100, a piston 200, a piston connecting rod 300, a crankshaft 400, and a driving device (not shown in the figure).
气缸100设置有N个,其中,N=3,各气缸100具有首尾连通的气室101,各气缸100首尾相对并形成N边形。N cylinders 100 are provided, where N = 3, each cylinder 100 has an air chamber 101 that communicates end to end, and each cylinder 100 faces each other and forms an N polygon.
活塞200设置有M个,其中,M=2N,各气缸100分别配置有两个活塞200且两活塞200均与气室101相适配并沿气室101的轴线并保持方向相反的往复滑动。There are M pistons 200, where M = 2N. Each cylinder 100 is provided with two pistons 200, and both pistons 200 are adapted to the air chamber 101 and slide back and forth along the axis of the air chamber 101 in opposite directions.
曲轴400设置的数量与气缸100设置的数量相同,任意相邻的两气缸100之间配置有一个曲轴400。The number of the crankshafts 400 is the same as that of the cylinders 100, and one crankshaft 400 is arranged between any two adjacent cylinders 100.
活塞连杆300的数量与活塞200的数量相同,各活塞200分别配置有一个活塞连杆300,活塞连杆300的一端伸入气室101并与活塞200转动连接,且另一端位于气室101之外,两活塞连杆300中位于相邻的两气缸100相对的端口处的端部均与曲轴400转动连接,任意相邻的两气室101的轴线沿着曲轴400的轴线相错,驱动装置的输出轴与各曲轴400连接以驱动各曲轴400转动,各曲轴400通过活塞连杆300带动活塞200沿着气室101的轴线往复滑动,各气缸100在与其连接的曲轴400旋转720°后依次完成进气冲程、压缩冲程、点火冲程和排气冲程。The number of piston connecting rods 300 is the same as the number of pistons 200. Each piston 200 is provided with a piston connecting rod 300. One end of the piston connecting rod 300 extends into the air chamber 101 and is rotationally connected to the piston 200. The other end is located in the air chamber 101. In addition, the ends of the two-piston connecting rod 300 located at the opposite ports of the two adjacent cylinders 100 are rotatably connected to the crankshaft 400, and the axes of any adjacent two air chambers 101 are staggered along the axis of the crankshaft 400 and driven. The output shaft of the device is connected to each crankshaft 400 to drive each crankshaft 400 to rotate. Each crankshaft 400 drives the piston 200 to reciprocate along the axis of the air chamber 101 through a piston connecting rod 300. After each cylinder 100 rotates 720 ° with the crankshaft 400 connected to it, Complete the intake stroke, compression stroke, ignition stroke, and exhaust stroke in this order.
在本实施例中,多缸发动机***1包括气缸100、活塞200、活塞连杆300、曲轴400和驱动装置,其中,气缸100设置有N个,而N=3,N个气缸100首尾相对并共同围成N边形,活塞200设置有M个,而M=2N,即是气缸100数量的两倍,可以理解地,每个气缸100配置有两个活塞200,形成单缸双活塞结构,每个气缸100内的两活塞200与气室101相适配并始终保持方向相反的往复滑动,每滑动一个冲程(的冲程为活塞200从一个极限位置到另一个极限位置做的功)便实现四个冲程中的一个冲程。曲轴400的数量与气缸100的数量相同,任意两个相邻的气缸100之间配置有一个曲轴400,驱动装置的输出轴与各曲轴400连接并驱动各曲轴400绕自身轴线转动。活塞连杆300的数量与活塞200的数量相同,每个曲轴400上转动连接有两个活塞连杆300,而两活塞连杆300的另一端分别伸入相邻的两气缸100的气室101内并分别与各气室101内的活塞200转动连接,在驱动装置的驱动下,各曲轴400均绕同一方向转动,并通过各活塞连杆300带动各活塞200于气室101内往复滑移,各气缸100在与其连接的曲轴400旋转720°后依次完成四个冲程,满足各气缸100内的两活塞200始终保持方向相反的往复滑动。因此,该多缸发动机***1具有如下优势:In this embodiment, the multi-cylinder engine system 1 includes a cylinder 100, a piston 200, a piston connecting rod 300, a crankshaft 400, and a driving device, where N cylinders 100 are provided, and N = 3. Together, they form an N polygon. M pistons 200 are provided, and M = 2N, which is twice the number of cylinders 100. Understandably, each cylinder 100 is equipped with two pistons 200 to form a single-cylinder double-piston structure. The two pistons 200 in each cylinder 100 are adapted to the air chamber 101 and always keep reciprocating in opposite directions. Each stroke (the stroke is the work done by the piston 200 from one extreme position to another extreme position) is realized. One of the four strokes. The number of crankshafts 400 is the same as the number of cylinders 100. One crankshaft 400 is arranged between any two adjacent cylinders 100. The output shaft of the driving device is connected to each crankshaft 400 and drives each crankshaft 400 to rotate around its own axis. The number of piston connecting rods 300 is the same as the number of pistons 200. Two crank connecting rods 300 are rotatably connected to each crankshaft 400, and the other ends of the two piston connecting rods 300 respectively extend into the air chambers 101 of two adjacent cylinders 100. It is connected with the pistons 200 in the air chambers 101 by rotation, and each crankshaft 400 rotates in the same direction under the driving of the driving device, and the pistons 200 are driven to reciprocate in the air chambers 101 by the piston connecting rods 300. Each cylinder 100 completes four strokes in sequence after the crankshaft 400 connected to it is rotated 720 °, so that the two pistons 200 in each cylinder 100 always keep reciprocating sliding in opposite directions. Therefore, the multi-cylinder engine system 1 has the following advantages:
第一、结构简单且紧凑,有效缩小其所占用的空间;First, the structure is simple and compact, which effectively reduces the space it takes up;
第二、N个气缸100首尾相对并共同围成N边形,这种分散式布置形式相较于传统的并排布置的形式,可有效提高散热面积,进而提高散热效果;Second, the N cylinders 100 are opposite to each other and form an N polygon. This decentralized arrangement is more effective than the traditional side-by-side arrangement, which can effectively increase the heat dissipation area and thus the heat dissipation effect;
第三、传统的发动机将所有的连杆布置于同一曲轴400上,这样,延长了曲轴的长度,为了保证曲轴的刚度,需要增大曲轴的直径,这会造成曲轴整体过于笨重,另外,随着活塞连杆300的数量增加,传统的曲轴的同轴度就会越差。相较于传统的曲轴,本实施例中的曲轴400数量与气缸100数量相同,并且每个曲轴400上只配置有两个活塞连杆300,结构简单,整体轻巧,精简了制造工艺,较容易实现各曲轴400的同轴度要求,实现平稳运转;Third, the conventional engine arranges all the connecting rods on the same crankshaft 400. In this way, the length of the crankshaft is extended. In order to ensure the rigidity of the crankshaft, the diameter of the crankshaft needs to be increased. This will cause the crankshaft to be too bulky. As the number of piston connecting rods 300 increases, the coaxiality of the conventional crankshaft becomes worse. Compared with conventional crankshafts, the number of crankshafts 400 in this embodiment is the same as the number of cylinders 100, and only two piston connecting rods 300 are arranged on each crankshaft 400. The structure is simple, the whole is light, the manufacturing process is simplified, and it is easier. To achieve the coaxiality requirements of each crankshaft 400 and achieve smooth operation;
第四、通过N各气缸100设置,而且每个气缸100配置有两个活塞200,有效提高发动机输出功率;Fourth, each cylinder 100 is provided, and each cylinder 100 is provided with two pistons 200, which effectively improves the engine output power;
第五、由于各气缸100内配置有两个活塞200,并且两个活塞200与气室101相适配并始终保持方向相反的往复滑动,这会促使各气缸100处于受力平衡状态,降低各气缸100的振动频率,进而降低整个***的振动,提高运行的平稳度。Fifth, because two pistons 200 are arranged in each cylinder 100, and the two pistons 200 are adapted to the air chamber 101 and always keep reciprocating in opposite directions, which will cause each cylinder 100 to be in a state of force balance and reduce each The vibration frequency of the cylinder 100 further reduces the vibration of the entire system and improves the smoothness of operation.
在本实施例中,多缸发动机***1还包括点火装置(图中未示出),点火装置设置的数量与气缸100设置的数量相同,各点火装置分别安装于一气缸100中位于中部的侧壁上并在点火冲程时启动。In this embodiment, the multi-cylinder engine system 1 further includes an ignition device (not shown in the figure). The number of ignition devices is the same as that of the cylinder 100. Each ignition device is installed on a side of the middle of the one cylinder 100. On the wall and start during the ignition stroke.
在本实施例中,该多缸发动机***1适用于汽油发动机,也适用于柴油发动机。当多缸发动机***1用于汽油发动机时,点火装置为火花塞;而当多缸发动机***1用于柴油发动机时,点火装置是喷油嘴。In this embodiment, the multi-cylinder engine system 1 is applicable to both a gasoline engine and a diesel engine. When the multi-cylinder engine system 1 is used in a gasoline engine, the ignition device is a spark plug; and when the multi-cylinder engine system 1 is used in a diesel engine, the ignition device is an injector.
在本实施例中,N个气缸100在随着各曲轴400旋转时沿着顺时针或逆时针方向依次执行进气冲程、压缩冲程、点火冲程和排气冲程,可以理解地,任意相邻两气缸100所执行的冲程相异,这样,一方面有利于多缸发动机***进行散热,另一方面实现周而复始的循环运转,更进一步提高运行的平稳性。In this embodiment, the N cylinders 100 sequentially execute the intake stroke, compression stroke, ignition stroke, and exhaust stroke in a clockwise or counterclockwise direction as each crankshaft 400 rotates. It can be understood that any two adjacent cylinders 100 The strokes performed by the cylinder 100 are different. In this way, on the one hand, it is beneficial for the multi-cylinder engine system to dissipate heat, and on the other hand, it realizes cyclic operation, which further improves the smoothness of the operation.
请同时参阅图1和图2,进一步地,多缸发动机***1还包括气缸架600,气缸架600包括主架体610,主架体610具有开口朝向外侧的安装槽601,安装槽601设置的数量与气缸100设置的数量相同,各安装槽601均匀布置于主架体610的周侧且首尾相连通,各气缸100分别固定于一安装槽601,各曲轴400均转动连接于主架体610。这样,为各气缸100以及各曲轴400提供安装条件。Please refer to FIG. 1 and FIG. 2 at the same time. Further, the multi-cylinder engine system 1 further includes a cylinder block 600. The cylinder block 600 includes a main frame body 610. The main frame body 610 has a mounting groove 601 whose opening faces outward. The number is the same as that of the cylinder 100. Each mounting groove 601 is evenly arranged on the peripheral side of the main frame body 610 and communicates with the end to end. Each cylinder 100 is fixed in a mounting groove 601, and each crankshaft 400 is rotatably connected to the main frame body 610. . In this way, mounting conditions are provided for each of the cylinders 100 and each of the crankshafts 400.
请同时参阅图1和图2,进一步地,主架体610包括上盖板611、下盖板612以及连接上盖板611与下盖板612的连接架体613,上盖板611开设有上通孔602,下盖板612开设有下通孔603,上通孔602与下通孔603相对,连接架体613的上端连接于上盖板611的上通孔602处且其下端连接于下盖板612的下通孔603处;上盖板611、下盖板612以及连接架体613共同形成N个安装槽601。在本实施例中,上通孔602与下通孔603的开设有效减少气缸架600的重量。Please refer to FIG. 1 and FIG. 2 at the same time. Further, the main frame body 610 includes an upper cover plate 611, a lower cover plate 612, and a connecting frame body 613 connecting the upper cover plate 611 and the lower cover plate 612. The through hole 602 and the lower cover plate 612 are provided with a lower through hole 603, the upper through hole 602 is opposite to the lower through hole 603, the upper end of the connecting frame body 613 is connected to the upper through hole 602 of the upper cover plate 611 and the lower end is connected to the lower At the lower through hole 603 of the cover plate 612, the upper cover plate 611, the lower cover plate 612, and the connecting frame body 613 collectively form N mounting grooves 601. In this embodiment, the opening of the upper through hole 602 and the lower through hole 603 effectively reduces the weight of the cylinder frame 600.
具体地,上通孔602和下通孔603均为N边形孔,上盖板611与下盖板612均为N边形板,上盖板611的内板边与外板边一一对应,下盖板612的内板边与外板边一一对应。Specifically, the upper through hole 602 and the lower through hole 603 are N-shaped holes, the upper cover plate 611 and the lower cover plate 612 are N-shaped plates, and the inner plate edge of the upper cover plate 611 corresponds to the outer plate edge The inner plate edge of the lower cover plate 612 corresponds to the outer plate edge.
更具体地,连接架体613包括多个连接板6131以及中心柱6132,中心柱6132从上通孔602延伸至下通孔603,各连接板6131均布于中心柱6132的周侧且其一侧板边均连接于中心柱6132的侧壁且另一侧板边连接上盖板611和下盖板612。这样,不仅实现对上盖板611与下盖板612的支撑,更能缩减气缸架600的重量。在本实施例中,连接板6131的数量为N个。More specifically, the connecting frame body 613 includes a plurality of connecting plates 6131 and a central post 6132. The central post 6132 extends from the upper through-hole 602 to the lower through-hole 603, and each connecting plate 6131 is distributed on the peripheral side of the central post 6132. The side plate edges are connected to the side wall of the central post 6132, and the other side plate edges are connected to the upper cover plate 611 and the lower cover plate 612. In this way, not only the upper cover plate 611 and the lower cover plate 612 are supported, but also the weight of the cylinder frame 600 can be reduced. In this embodiment, the number of the connection plates 6131 is N.
请同时参阅图1和图2,进一步地,多缸发动机***1还包括动力传动组件,动力传动组件用于将驱动装置的动力传递至各曲轴,以驱动各曲轴同步转动。Please refer to FIG. 1 and FIG. 2 at the same time. Further, the multi-cylinder engine system 1 further includes a power transmission component, which is used to transmit the power of the driving device to the crankshafts to drive the crankshafts to rotate synchronously.
请参阅图10,在一个实施例中,动力传动组件包括传动链轴(图未示)、链条830、主动传动链轮810以及从动传动链轮820;Referring to FIG. 10, in one embodiment, the power transmission assembly includes a transmission sprocket (not shown), a chain 830, a driving transmission sprocket 810, and a driven transmission sprocket 820;
传动链轴穿插于主架体610并与主架体610转动连接,传动链轴的轴线与N个曲轴400共同形成的中心线相同,驱动装置的输出轴与传动链轴连接并同步转动;The transmission chain shaft is inserted into the main frame body 610 and is rotatably connected to the main frame body 610. The axis of the transmission chain shaft is the same as the centerline formed by the N crankshafts 400. The output shaft of the driving device is connected to the transmission chain shaft and rotates synchronously;
主动传动链轮810位于主架体610的上侧并与传动链轴固定连接,主动传动链轮810的轴线与传动链轴的轴线相同;The drive sprocket 810 is located on the upper side of the main frame body 610 and is fixedly connected to the drive sprocket shaft. The axis of the drive sprocket 810 is the same as the axis of the drive sprocket shaft.
从动传动链轮820的数量与曲轴400的数量相同,各从动传动链轮820均位于主架体的上侧并分别固定于一曲轴400上,从动传动链轮820的轴线与曲轴400的转动轴线相同,各从动传动链轮820围绕于主动传动链轮810周侧,链条830啮合主动传动链轮810与各从动传动链轮820,这样驱动装置驱动传动链轴转动,传动链轴上的主动传动链轮810带动链条830转动,从而使链条830带动各从动传动链轮820转动,各从动传动链轮820分别带动对应的曲轴400转动,进而实现动力从驱动装置传递至各曲轴400。通过链条830、主动传动链轮810以及从动传动链轮820的配合不但可以实现动力的传递,而且成本低,易于生产制造。The number of driven transmission sprocket 820 is the same as the number of crankshaft 400. Each driven transmission sprocket 820 is located on the upper side of the main frame and fixed to a crankshaft 400. The axis of the driven transmission sprocket 820 and the crankshaft 400 are The rotation axis is the same. Each driven transmission sprocket 820 surrounds the periphery of the driving transmission sprocket 810. The chain 830 engages the driving transmission sprocket 810 and each driven transmission sprocket 820. In this way, the driving device drives the transmission chain shaft to rotate and the transmission chain The active transmission sprocket 810 on the shaft drives the chain 830 to rotate, so that the chain 830 drives each driven transmission sprocket 820 to rotate, and each driven transmission sprocket 820 respectively drives the corresponding crankshaft 400 to rotate, thereby achieving power transmission from the driving device to Each crankshaft 400. Through the cooperation of the chain 830, the driving transmission sprocket 810, and the driven transmission sprocket 820, not only power transmission can be realized, but also the cost is low, and it is easy to manufacture.
请参阅图2,在一个实施例中,动力传动组件700包括传动轴710、主动传动齿轮(图中未示出)以及从动传动齿轮720。Referring to FIG. 2, in one embodiment, the power transmission assembly 700 includes a transmission shaft 710, a driving transmission gear (not shown in the figure), and a driven transmission gear 720.
传动轴710穿插于主架体610并与主架体610转动连接,传动轴710的轴线与N个曲轴400共同形成的中心线相同,驱动装置的输出轴与传动轴710连接并同步转动。The transmission shaft 710 is inserted into the main frame body 610 and is rotatably connected to the main frame body 610. The axis of the transmission shaft 710 is the same as the center line formed by the N crankshafts 400. The output shaft of the driving device is connected to the transmission shaft 710 and rotates synchronously.
主动传动齿轮位于主架体610的上侧并与传动轴710固定连接,主动传动齿轮的轴线与传动轴710的轴线相同。The driving transmission gear is located on the upper side of the main frame body 610 and is fixedly connected to the transmission shaft 710. The axis of the driving transmission gear is the same as the axis of the transmission shaft 710.
从动传动齿轮720的数量与曲轴400的数量相同,各从动传动齿轮720均位于主架体610的上侧并分别固定于一曲轴400上,从动传动齿轮720的轴线与曲轴400的转动轴线相同,各从动传动齿轮720围绕于主动传动齿轮周侧并均与主动传动齿轮相啮合。这样,实现驱动力的传递。The number of driven transmission gears 720 is the same as the number of crankshafts 400. Each driven transmission gear 720 is located on the upper side of the main body 610 and is fixed to a crankshaft 400. The axis of the driven transmission gear 720 and the rotation of the crankshaft 400 The axes are the same, and each driven transmission gear 720 surrounds the periphery of the driving transmission gear and meshes with the driving transmission gear. In this way, the driving force is transmitted.
在本实施例中,中心柱6132于其一端面向另一端面开设有传动孔604,传动轴710穿设于传动孔604并与传动孔604转动连接。In this embodiment, a transmission hole 604 is formed on one end of the central column 6132 facing the other end, and a transmission shaft 710 is passed through the transmission hole 604 and is rotatably connected to the transmission hole 604.
请同时参阅图1和图2,进一步地,动力传动组件700还包括中间齿轮(图中未示出),中间齿轮的数量与从动传动齿轮720的数量相同。Please refer to FIG. 1 and FIG. 2 at the same time. Further, the power transmission assembly 700 further includes intermediate gears (not shown in the figure), and the number of the intermediate gears is the same as the number of the driven transmission gears 720.
气缸架600还包括与主架体610的上侧面连接并位于传动轴710与各曲轴400之间的中转轴620,中转轴620的数量与中间齿轮的数量相同,各中间齿轮分别转动连接于一中转轴620并分别与主动传动齿轮和一从动传动齿轮720相啮合,中间齿轮的轴线与中转轴620的轴线相同。这样,一方面实现驱动力的传递,另一方面,可以通过各中间齿轮的大小来调节由驱动装置输出的转速与转矩。The cylinder frame 600 further includes intermediate shafts 620 connected to the upper side of the main frame body 610 and located between the transmission shaft 710 and each of the crankshafts 400. The number of the intermediate shafts 620 is the same as the number of intermediate gears, and each intermediate gear is rotatably connected to one The intermediate shaft 620 is meshed with the driving gear and a driven gear 720, respectively. The axis of the intermediate gear is the same as the axis of the intermediate shaft 620. In this way, on the one hand, the transmission of driving force is achieved, and on the other hand, the speed and torque output by the driving device can be adjusted by the size of each intermediate gear.
请同时参阅图1和图3,进一步地,各曲轴400包括两主轴410、三个曲柄420和两个连杆轴颈430,任意相邻的两曲柄420之间连接有一连杆轴颈430,两主轴410分别连接于三个曲柄420中位于两端的两曲柄420,各连杆轴颈430分别与一活塞连杆300转动连接,两主轴410的轴线相同,即两主轴410的轴线均平行设置。两连杆轴颈430相对于各主轴410的轴线的相位相差的角度为α,且α=180°。两连杆轴颈430的轴线均与两主轴410的轴线平行设置,且两连杆轴颈430分别位于两主轴410的两侧,两主轴410的中心轴线与两连杆轴颈430的中心轴线共面设置。Please refer to FIGS. 1 and 3 at the same time. Further, each crankshaft 400 includes two main shafts 410, three cranks 420, and two connecting rod journals 430. A connecting rod journal 430 is connected between any two adjacent cranks 420. The two main shafts 410 are respectively connected to the two cranks 420 at the two ends of the three cranks 420. Each connecting rod journal 430 is rotatably connected to a piston connecting rod 300. The axes of the two main shafts 410 are the same, that is, the axes of the two main shafts 410 are arranged in parallel. . The phase difference between the two connecting rod journals 430 with respect to the axis of each main shaft 410 is α, and α = 180 °. The axes of the two connecting rod journals 430 are arranged parallel to the axes of the two main shafts 410, and the two connecting rod journals 430 are located on both sides of the two main shafts 410, respectively. The central axis of the two main shafts 410 and the central axis of the two connecting rod journals 430 Coplanar setting.
在本实施例中,三个曲柄420中位于中间的曲柄420呈圆板状,位于中间的曲柄420的轴线与两主轴410的轴线相同,位于两端的曲柄420均呈条形。In the present embodiment, among the three cranks 420, the crank 420 in the middle is in the shape of a circular plate, the axis of the crank 420 in the middle is the same as the axis of the two main shafts 410, and the cranks 420 at the two ends are bar-shaped.
请同时参阅图1、图4和图5,进一步地,多缸发动机***1还包括配气机构500,配气机构500设置的数量与气缸100设置的数量相同且一一对应并固定于气缸100,各气缸100开设有与气室101连通的通气孔(图中未示出),各配气机构500具有配气孔501,通气孔与配气孔501连通,驱动装置的输出轴与各配气机构500连接,各配气机构500在进气冲程时向气室101供气,而在排气冲程时将气室101内的气体排出,同时,在压缩冲程和点火冲程时闭合配气孔501。Please refer to FIG. 1, FIG. 4 and FIG. 5 at the same time. Further, the multi-cylinder engine system 1 further includes an air distribution mechanism 500. The number of the air distribution mechanism 500 is the same as that of the cylinder 100 and corresponds to the one-to-one and fixed to the cylinder 100. Each cylinder 100 is provided with a vent hole (not shown in the figure) that communicates with the air chamber 101. Each gas distribution mechanism 500 has a gas distribution hole 501. The vent hole communicates with the gas distribution hole 501. The output shaft of the driving device and each gas distribution mechanism Connected to 500, each valve distribution mechanism 500 supplies air to the air chamber 101 during the intake stroke, and exhausts the gas in the air chamber 101 during the exhaust stroke. At the same time, the valve hole 501 is closed during the compression stroke and the ignition stroke.
可选地,配气孔501的横截面形状为圆形、椭圆形和多边形中的一种,其中多边形可以为三角形、正方形或长方形等。Optionally, the cross-sectional shape of the air distribution hole 501 is one of a circle, an oval, and a polygon, and the polygon may be a triangle, a square, or a rectangle.
具体地,各气缸100分别配置一个配气机构500,气缸100上的通气孔与配气机构500上的配气孔501连通,各配气机构500在进气冲程时向气室101供气,而在排气冲程时将气室101内的气体排出,同时,在压缩冲程和点火冲程时闭合配气孔501。Specifically, each cylinder 100 is provided with an air distribution mechanism 500. The ventilation holes on the cylinder 100 communicate with the air distribution holes 501 on the gas distribution mechanism 500. Each gas distribution mechanism 500 supplies air to the air chamber 101 during the intake stroke, and During the exhaust stroke, the gas in the gas chamber 101 is exhausted, and at the same time, the gas distribution hole 501 is closed during the compression stroke and the ignition stroke.
请同时参阅图1、图4和图5,进一步地,各配气机构500包括配气外壳510、配气轴阀520以及配气转轴530,配气轴阀520与配气转轴530连接且二者轴线相同,配气轴阀520设有进气通道521和排气通道522。Please refer to FIG. 1, FIG. 4 and FIG. 5 at the same time. Further, each gas distribution mechanism 500 includes a gas distribution housing 510, a gas distribution shaft valve 520, and a gas distribution shaft 530. The gas distribution shaft valve 520 is connected to the gas distribution shaft 530 and two With the same axis, the valve shaft 520 is provided with an intake passage 521 and an exhaust passage 522.
配气外壳510具有配气容腔506以及与配气容腔506连通的进气口502、排气口503和轴孔504,配气轴阀520置于配气容腔506内并与配气容腔506相适配,配气转轴530的一端部从轴孔504穿出并与驱动装置连接并联动以带动配气轴阀520转动,配气孔501开设于配气外壳510并与配气容腔506连通。The gas distribution housing 510 has a gas distribution volume 506 and an air inlet 502, an exhaust port 503, and a shaft hole 504 communicating with the gas distribution volume 506. The gas distribution shaft valve 520 is placed in the gas distribution volume 506 and communicates with the gas distribution volume. The cavity 506 is adapted. One end of the gas distribution shaft 530 penetrates through the shaft hole 504 and is connected in parallel with the driving device to drive the gas distribution shaft valve 520 to rotate. The gas distribution hole 501 is opened in the gas distribution housing 510 and communicates with the gas distribution volume. The cavity 506 is in communication.
进气通道521在气缸100处于进气冲程时连通进气口502和配气孔501以使外部气体导入气缸100。The intake passage 521 communicates with the intake port 502 and the air distribution hole 501 when the cylinder 100 is in the intake stroke to allow external air to be introduced into the cylinder 100.
排气通道522在气缸100处于排气冲程时连通配气孔501和排气口503以使气缸100内气体排出。The exhaust passage 522 communicates with the gas distribution hole 501 and the exhaust port 503 when the cylinder 100 is in the exhaust stroke to discharge the gas in the cylinder 100.
配气轴阀520在气缸100处于压缩冲程和点火冲程时时封堵进气口502、排气口503和配气孔501。The valve shaft valve 520 blocks the intake port 502, the exhaust port 503, and the valve port 501 when the cylinder 100 is in the compression stroke and the ignition stroke.
在本实施例中,该配气机构500采用了配气相位控制技术,配气轴阀520上设有进气通道521和排气通道522,将配气轴阀520通过配气转轴530转动连接于配气容腔506,配气转轴530与驱动装置的输出轴连接,并在驱动装置驱动下转动,实现可变配气相位和进排气时间双重控制。在气缸100处于进气冲程时,同时配气轴阀520由驱动装置驱动转过相应角度,此时,进气通道521连通进气口502和配气孔501以使外部气体导入气缸100;在气缸100处于排气冲程时,同时配气轴阀520由驱动装置驱动转过相应角度,此时,排气通道522连通配气孔501和排气口503以使气缸100内气体排出;在气缸100处于压缩冲程时,同时配气轴阀520由驱动装置驱动转过相应角度,此时,配气轴阀520封堵进气口502、排气口503和配气孔501;在气缸100处于点火冲程时,同时配气轴阀520由驱动装置驱动转过相应角度,此时,配气轴阀520封堵进气口502、排气口503和配气孔501。通过该配气机构500,在完善活塞式发动机配气功能的同时,达到简化机械结构、提高可靠性、降低功率消耗以及减小重量、体积、噪音的效果。In this embodiment, the gas distribution mechanism 500 uses a gas distribution phase control technology. The gas distribution shaft valve 520 is provided with an intake passage 521 and an exhaust passage 522, and the gas distribution shaft valve 520 is rotatably connected through the gas distribution shaft 530. In the gas distribution volume 506, the gas distribution rotating shaft 530 is connected to the output shaft of the driving device, and rotates under the driving of the driving device, so as to realize dual control of variable gas distribution phase and intake and exhaust time. When the cylinder 100 is in the intake stroke, at the same time, the valve shaft 520 is driven through the corresponding angle by the driving device. At this time, the intake passage 521 communicates with the intake port 502 and the valve hole 501 to allow external air to be introduced into the cylinder 100; When 100 is in the exhaust stroke, at the same time, the valve shaft 520 is driven through the corresponding angle by the driving device. At this time, the exhaust passage 522 communicates with the air distribution hole 501 and the exhaust port 503 to exhaust the gas in the cylinder 100. During the compression stroke, at the same time, the valve shaft 520 is driven through the corresponding angle by the driving device. At this time, the valve shaft 520 blocks the intake port 502, the exhaust port 503, and the valve hole 501. When the cylinder 100 is in the ignition stroke At the same time, the gas distribution shaft valve 520 is driven through the corresponding angle by the driving device. At this time, the gas distribution shaft valve 520 blocks the intake port 502, the exhaust port 503, and the distribution hole 501. Through the valve distribution mechanism 500, the effects of simplifying the mechanical structure, improving reliability, reducing power consumption, and reducing weight, volume, and noise are achieved while perfecting the valve distribution function of the piston engine.
在本实施例中,进气口502与排气口503分置与配气外壳510的配气容腔506的两相对侧腔壁上。In the present embodiment, the air inlet 502 and the air outlet 503 are separated from the two opposite side cavity walls of the gas distribution volume 506 of the gas distribution housing 510.
在本实施例中,配气外壳510于配气容腔506的腔壁开设环形安置槽505,该环形安置槽505位于配气孔501的外周,配气机构500还包括密封环(图中未示出),该密封环一端插于环形安置槽505内,且另一端抵于配气轴阀520外表面,防止气缸100在压缩冲程时,气体通过配气孔501外泄。具体地,密封环与配气轴阀520的外表面相贴合。In this embodiment, the gas distribution housing 510 is provided with an annular mounting groove 505 on the cavity wall of the gas distribution volume 506. The annular positioning groove 505 is located on the outer periphery of the gas distribution hole 501. The gas distribution mechanism 500 further includes a sealing ring (not shown in the figure). Out), one end of the seal ring is inserted into the annular installation groove 505, and the other end is against the outer surface of the valve shaft 520, which prevents the gas from leaking out through the valve hole 501 during the compression stroke of the cylinder 100. Specifically, the seal ring is in contact with the outer surface of the valve shaft 520.
具体地,该密封环为石墨密封环。Specifically, the sealing ring is a graphite sealing ring.
请同时参阅图1、图4和图5,进一步地,进气通道521具有第一进气道口5211和第一出气道口5212,排气通道522具有第二进气道口5221和第二出气道口5222,其中,第一出气道口5212与第二进气道口5221位于与配气轴阀520的轴线相垂直的同一径向面。Please refer to FIG. 1, FIG. 4 and FIG. 5 at the same time. Further, the intake passage 521 has a first inlet port 5211 and a first outlet port 5212, and the exhaust passage 522 has a second inlet port 5221 and a second outlet port 5222. Wherein, the first air outlet port 5212 and the second air inlet port 5221 are located on the same radial plane perpendicular to the axis of the valve shaft 520.
第一出气道口5212在气缸100处于进气冲程时与配气孔501对接。The first outlet port 5212 is docked with the air distribution hole 501 when the cylinder 100 is in the intake stroke.
第二进气道口5221在气缸100处于排气冲程时与配气孔501对接。The second inlet port 5221 is docked with the valve port 501 when the cylinder 100 is in the exhaust stroke.
在本实施例中,通过该结构,气缸100只需设置一个与气室101连通的通气孔,配气外壳510只需设置一个与通气孔连通的配气孔501,这样有效简化结构,并且简化制作工艺,提高进气通道521以及排气通道522与配气孔501的对准精度。In this embodiment, with this structure, the air cylinder 100 only needs to be provided with a vent hole communicating with the air chamber 101, and the gas distribution housing 510 only needs to be provided with a vent hole 501 communicating with the vent hole, which effectively simplifies the structure and simplifies production Process to improve the alignment accuracy of the intake passage 521 and the exhaust passage 522 with the air distribution hole 501.
请同时参阅图1和图4,进一步地,多缸发动机***1还包括配气传动组件(图中未示出),配气传动组件包括正时主动齿轮、正时从动齿轮和齿型同步带,正时主动齿轮位于主架体610的下侧并与传动轴710固定连接,正时主动齿轮的轴线与传动轴710的轴线相同。Please refer to FIG. 1 and FIG. 4 at the same time. Further, the multi-cylinder engine system 1 further includes a valve transmission component (not shown in the figure). The valve transmission component includes a timing driving gear, a timing driven gear, and a tooth profile synchronization. Belt, the timing driving gear is located on the lower side of the main frame body 610 and is fixedly connected with the transmission shaft 710. The axis of the timing driving gear is the same as the axis of the transmission shaft 710.
正时从动齿轮的数量与配气机构500的数量相同,各正时从动齿轮均位于主架体610的下侧并分别与一配气转轴530中位于配气外壳510之外的端部固定连接,正时从动齿轮的轴线与配气转轴530的轴线相同。The number of timing driven gears is the same as that of the valve distribution mechanism 500. Each timing driven gear is located on the lower side of the main body 610 and is respectively located at an end of the valve shaft 530 outside the valve housing 510. Fixedly connected, the axis of the timing driven gear is the same as the axis of the valve shaft 530.
齿型同步带连接正时主动齿轮和各正时从动齿轮,正时主动齿轮以及各正时从动齿轮均与齿型同步带相啮合,正时主动齿轮通过齿型同步带带动各正时从动齿轮同步转动。The toothed timing belt is connected with the timing driving gear and each timing driven gear. The timing driving gear and each timing driven gear are meshed with the toothed timing belt. The timing driving gear drives each timing through the toothed timing belt. The driven gear rotates synchronously.
在本实施例中,各正时从动齿轮均位于齿型同步带的内侧并均与齿型同步带相啮合,正时主动齿轮位于磁性同步带之外并与齿型同步带相啮合,齿型同步带安装后形成一V型。In this embodiment, each timing driven gear is located on the inner side of the toothed timing belt and meshes with the toothed timing belt. The timing driving gear is located outside the magnetic timing belt and meshes with the toothed timing belt. The V-belt forms a V-shape when installed.
进一步地,各正时从动齿轮的直径是正时主动齿轮的直径的两倍。可以理解地,当正时主动齿轮转过两圈时,各正时从动齿轮转过一圈,实现可变配气相位和进排气时间双重控制。Further, the diameter of each timing driven gear is twice the diameter of the timing driving gear. Understandably, when the timing driving gear rotates twice, each timing driven gear rotates once, realizing dual control of variable valve phase and intake and exhaust time.
请同时参阅图1以及图4至图6,进一步地,各配气机构500还包括设于配气容腔506内的增压装置560,增压装置560包括增压风扇561以及与增压风扇561连接并用于驱动增压风扇561运转的传动结构562,传动结构562连接于配气转轴530并与配气转轴530联动。Please refer to FIG. 1 and FIGS. 4 to 6 at the same time. Further, each of the gas distribution mechanisms 500 further includes a pressure boosting device 560 disposed in the gas distribution volume 506. The pressure boosting device 560 includes a pressure boosting fan 561 and a pressure boosting fan. 561 is connected to a transmission structure 562 for driving the booster fan 561 to operate. The transmission structure 562 is connected to the air distribution shaft 530 and is linked with the air distribution shaft 530.
配气轴阀520具有第一配气端523以及与第一配气端523相对的第二配气端524,第二配气端524与轴孔504相面对,增压装置560与第一配气端523的端面相面对。The gas distribution shaft valve 520 has a first gas distribution end 523 and a second gas distribution end 524 opposite to the first gas distribution end 523. The second gas distribution end 524 faces the shaft hole 504, and the supercharging device 560 and the first The end faces of the gas distribution end 523 face each other.
第一进气道口5211开设于第一配气端523的端面,增压风扇561相对位于第一配气端523的端面与进气口502之间。The first air inlet port 5211 is opened on an end surface of the first air distribution end 523, and the booster fan 561 is relatively located between the end surface of the first air distribution end 523 and the air inlet 502.
在本实施例中,进气口502与第一配气端523的端面相对。增压风扇561设于第一配气端523的端面与进气口502之间,增压风扇561具有供吸风侧和排风侧,其中,吸风侧与进气口502相对,而排风侧与进气通道521的第一进气道口5211相对,可以理解地,在气缸100处于进气冲程时,同时配气轴阀520由驱动装置驱动转过相应角度,此时,进气通道521连通进气口502和配气孔501,通过增压风扇561的设置,可以增加由外部导入进气通道521的气体压力,提高进气量。由于增压风扇561通过传动结构562与配气转轴530连接并随着配气转轴530的转动而运转,这样,当配气转轴530的转速增大(加大油门)时,增压风扇561控制进气量也随之增大,同时,进气通道521内的气体压力也会随之提高,提高进入气缸100的进气量,以使气缸100产生足够的驱动力。In this embodiment, the air inlet 502 is opposite to the end surface of the first air distribution end 523. The booster fan 561 is provided between the end surface of the first air distribution end 523 and the air inlet 502. The booster fan 561 has a suction side and a discharge side, wherein the suction side is opposite to the air inlet 502 and the exhaust side The wind side is opposite to the first intake port 5211 of the intake passage 521. It can be understood that when the cylinder 100 is in the intake stroke, the valve shaft 520 is driven by the driving device to rotate through the corresponding angle. At this time, the intake passage 521 communicates with the air inlet 502 and the air distribution hole 501, and the pressure of the gas introduced from the outside into the air inlet passage 521 can be increased by the setting of the booster fan 561 to increase the air intake. Since the booster fan 561 is connected to the air distribution shaft 530 through the transmission structure 562 and operates with the rotation of the air distribution shaft 530, in this way, when the rotation speed of the air distribution shaft 530 increases (increases the throttle), the booster fan 561 controls The amount of intake air also increases, and at the same time, the pressure of the gas in the intake passage 521 increases, so that the amount of intake air entering the cylinder 100 is increased, so that the cylinder 100 generates sufficient driving force.
请同时参阅图4至图6,进一步地,传动结构562包括外齿圈563、太阳轮564、行星架565和多个行星齿轮566,外齿圈563套于配气转轴530之上并与配气转轴530同步转动,各行星齿轮566均位于外齿圈563之内并均与外齿圈563相啮合,太阳轮564套于配气转轴530且与配气转轴530间隙配合,各行星齿轮566均与太阳轮564相啮合,增压风扇561与太阳轮564的一端连接并随太阳轮564的转动而转动,行星架565位于太阳轮564与增压风扇561之间并固定于配气容腔506,各行星齿轮566转动连接于行星架565上。Please refer to FIGS. 4 to 6 at the same time. Further, the transmission structure 562 includes an outer ring gear 563, a sun gear 564, a planet carrier 565, and a plurality of planetary gears 566. The outer ring gear 563 is sleeved on the gas distribution shaft 530 and is matched with The air rotating shaft 530 rotates synchronously. Each planetary gear 566 is located within the outer ring gear 563 and is in mesh with the outer ring gear 563. The sun gear 564 is sleeved on the air distribution shaft 530 and cooperates with the air distribution shaft 530 with a clearance. Each planet gear 566 Both are in mesh with the sun gear 564. The booster fan 561 is connected to one end of the sun gear 564 and rotates with the rotation of the sun gear 564. The planet carrier 565 is located between the sun gear 564 and the booster fan 561 and is fixed to the air distribution chamber. 506. Each planetary gear 566 is rotatably connected to the planet carrier 565.
在本实施例中,增压风扇561的转速为n,外齿圈563的齿数为Z1,太阳轮564的齿数为Z2,配气转轴530的转速为nt,其中,n=nt×Z1/Z2,通过传动结构实现增压风扇561的增速。In this embodiment, the rotation speed of the booster fan 561 is n, the number of teeth of the outer ring gear 563 is Z1, the number of teeth of the sun gear 564 is Z2, and the rotation speed of the air distribution shaft 530 is nt, where n = nt × Z1 / Z2 The speed increase of the booster fan 561 is realized through the transmission structure.
请同时参阅图4至图6,进一步地,传动结构562还包括轴套567,轴套567套装于配气转轴530之上并与配气转轴530间隙配合,轴套567的一端连接太阳轮564且另一端连接增压风扇561,轴套567的侧部与进气口502相面对。这样,避免封堵进气口。Please refer to FIG. 4 to FIG. 6 at the same time. Further, the transmission structure 562 further includes a shaft sleeve 567, which is sleeved on the gas distribution shaft 530 and fits with the gas distribution shaft 530. One end of the shaft sleeve 567 is connected to the sun gear 564. And the other end is connected to the booster fan 561, and the side of the sleeve 567 faces the air inlet 502. In this way, avoid blocking the air inlet.
在本实施例中,行星架565包括主架体5651以及与主架体5651连接的多个固定轴5652,各固定轴5652均连接于主架体5651中与增压风扇561相背对的一侧面上,各行星齿轮566分别转动套设于一固定轴5652之上,主架体5651开设有套孔5653,主架体5651套设于轴套567上并固定于配气容腔506,且与轴套567间隙配合。In this embodiment, the planet carrier 565 includes a main frame body 5651 and a plurality of fixed shafts 5652 connected to the main frame body 5651. Each of the fixed shafts 5652 is connected to one of the main frame bodies 5651 facing away from the booster fan 561. On the side, each planetary gear 566 is rotatably sleeved on a fixed shaft 5652, the main frame body 5651 is provided with a sleeve hole 5653, the main frame body 5651 is sleeved on the shaft sleeve 567 and fixed to the gas distribution cavity 506, and Clearance fit with sleeve 567.
在本实施例中,太阳轮564、轴套567以及增压风扇561成型于一体。In this embodiment, the sun gear 564, the shaft sleeve 567, and the booster fan 561 are integrally formed.
在本实施例中,配气轴阀520于第一配气端523的端面并沿着配气轴阀520的轴线开设转轴孔525,配气转轴530的一端部穿过转轴孔525并过盈配合,且配气转轴530的轴线与配气轴阀520的轴线相同。配气转轴530的一端部从轴孔504伸出至配气外壳510之外并与驱动装置的输出轴连接,另一端部转动连接于配气容腔506的腔壁并轴向限位于配气容腔506的腔壁。In this embodiment, the gas distribution shaft valve 520 is provided on the end surface of the first gas distribution end 523 and along the axis of the gas distribution shaft valve 520, and a shaft hole 525 is opened. One end of the gas distribution shaft 530 passes through the shaft hole 525 and interferes. The axis of the valve shaft 530 is the same as the axis of the valve shaft 520. One end of the valve shaft 530 protrudes from the shaft hole 504 to the outside of the valve housing 510 and is connected to the output shaft of the driving device. The other end is rotatably connected to the cavity wall of the valve chamber 506 and is axially limited to the valve. The cavity wall of the cavity 506.
在本实施例中,配气机构500还包括第一轴承540和第二轴承550,配气转轴530中与第一配气端523相对的端部插于第一轴承540的轴承孔并轴向限位于轴承孔,配气转轴530中与第二配气端524相对的端部穿设于第二轴承550的轴承孔内并轴向限位于轴承孔。具体地,配气外壳510于配气容腔506中与配气转轴530的一端部相对的腔壁开设有用于供第一轴承540安装的第一安装孔507,第一轴承540的外圈固定于第一安装孔507内,该第一安装孔507为盲孔。配气外壳510于配气容腔506腔壁开设有用于供第二轴承550安装的第二安装孔508,第二轴承550的外圈固定于第二安装孔508,其中,轴孔504与第二安装孔508相对并相连通。In this embodiment, the gas distribution mechanism 500 further includes a first bearing 540 and a second bearing 550. The end of the gas distribution shaft 530 opposite to the first gas distribution end 523 is inserted into the bearing hole of the first bearing 540 and axially It is limited to the bearing hole, and the end of the gas distribution shaft 530 opposite to the second gas distribution end 524 is penetrated in the bearing hole of the second bearing 550 and is axially limited to the bearing hole. Specifically, the gas distribution housing 510 is provided with a first mounting hole 507 for mounting the first bearing 540 in a cavity wall of the gas distribution volume 506 opposite to one end of the gas distribution shaft 530, and the outer ring of the first bearing 540 is fixed Within the first mounting hole 507, the first mounting hole 507 is a blind hole. The gas distribution housing 510 is provided with a second mounting hole 508 for mounting the second bearing 550 on the cavity wall of the gas distribution volume 506. The outer ring of the second bearing 550 is fixed to the second mounting hole 508, wherein the shaft hole 504 and the first The two mounting holes 508 are opposite and communicate with each other.
在本实施例中,配气外壳510开设有插接孔509,其中,插接孔509与配气容腔506错开设置,并与气缸100的气室101连通,用以插接火花塞或喷油嘴。In this embodiment, the gas distribution housing 510 is provided with a plug hole 509, wherein the plug hole 509 is staggered from the gas distribution volume 506 and communicates with the air chamber 101 of the cylinder 100 for plugging a spark plug or fuel injection mouth.
在本实施例中,配气轴阀520于其第一配气端523的端面开设有增压槽527,增压风扇561插于增压槽527,提高气体增压效率,而且结构紧凑,有效缩短轴向距离。进气通道521的第一进气道口5211开设于增压槽527的槽底。In this embodiment, the gas distribution shaft valve 520 is provided with a booster groove 527 on the end surface of the first gas distribution end 523, and a booster fan 561 is inserted in the booster groove 527 to improve the gas boosting efficiency, and the structure is compact and effective. Reduce axial distance. The first intake port 5211 of the intake passage 521 is opened at the groove bottom of the supercharging groove 527.
请同时参阅图1、图3以及图7至图9,在本实施例中,N=3,M=6,即气缸100设置有三个且共同围成三角形,按照顺时针方向依次为第一气缸110a、第二气缸120a和第三气缸130a,而活塞200设置有六个,曲轴400设置有三个,共同形成三缸发动机***。Please refer to FIG. 1, FIG. 3, and FIG. 7 to FIG. 9 at the same time. In this embodiment, N = 3 and M = 6, that is, three cylinders 100 are provided and they form a triangle together, and are the first cylinder in the clockwise direction. 110a, second cylinder 120a, and third cylinder 130a, while six pistons 200 are provided and three crankshafts 400 are provided to form a three-cylinder engine system.
为实现第一气缸110a、第二气缸120a和第三气缸130a同时运作,需要满足以下要求:To achieve the simultaneous operation of the first cylinder 110a, the second cylinder 120a, and the third cylinder 130a, the following requirements need to be met:
各曲轴与对应的两活塞连杆之间分别具有一连接位,两连接位之间具有相位差且相位差为α,其中,α=180°。可以理解地,曲轴400的主轴410的轴线与各曲轴400的两个连杆轴颈430的轴线均在同一平面,两个连杆轴颈430相对于曲轴400的主轴410的轴线成对称布置。进一步地,三个曲轴400的主轴410轴线与各自的两个连杆轴颈410的轴线所构成的平面始终平行。在本实施例中,该曲轴400无需考虑配重问题,运转平稳性高。There is a connection position between each crankshaft and the corresponding two-piston connecting rod, and there is a phase difference between the two connection positions, and the phase difference is α, where α = 180 °. It can be understood that the axis of the main shaft 410 of the crankshaft 400 and the axis of the two connecting rod journals 430 of each crankshaft 400 are in the same plane, and the two connecting rod journals 430 are symmetrically arranged with respect to the axis of the main shaft 410 of the crankshaft 400. Further, the planes formed by the axes of the main axes 410 of the three crankshafts 400 and the axes of the respective two connecting rod journals 410 are always parallel. In this embodiment, the crankshaft 400 does not need to consider the problem of counterweight, and has high running stability.
如图7所示的三个曲轴400所在的位置为初始位置,此时,第一气缸110a、第二气缸120a和第三气缸130a均具有初始状态,第一气缸110a开始进入点火冲程;当三个曲轴400均顺时针转动240°后,三个曲轴400的位置如图8所示,此时,第二气缸120a开始进入点火冲程;当三个曲轴400均继续顺时针转动240°后,三个曲轴400的位置如图9所示,此时,第三气缸130a开始进入点火冲程。各曲轴400均旋转720°后,第一气缸110a、第二气缸120a和第三气缸130a均回到初始状态,这样周而复始的循环旋转,以使三缸发动机***同时运转。As shown in FIG. 7, the positions of the three crankshafts 400 are initial positions. At this time, the first cylinder 110a, the second cylinder 120a, and the third cylinder 130a all have initial states, and the first cylinder 110a starts to enter the ignition stroke; After the crankshafts 400 are all rotated 240 ° clockwise, the positions of the three crankshafts 400 are shown in FIG. 8. At this time, the second cylinder 120 a starts to enter the ignition stroke; when the three crankshafts 400 continue to rotate 240 ° clockwise, the three The position of each crankshaft 400 is shown in FIG. 9. At this time, the third cylinder 130 a starts to enter the ignition stroke. After each crankshaft 400 is rotated 720 °, the first cylinder 110a, the second cylinder 120a, and the third cylinder 130a are returned to the initial state, so that the cycle rotates repeatedly to make the three-cylinder engine system run simultaneously.
以上仅为本申请的较佳实施例而已,并不用以限制本申请,凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本申请的保护范围之内。The above are only preferred embodiments of this application, and are not intended to limit this application. Any modification, equivalent replacement, and improvement made within the spirit and principles of this application shall be included in the scope of protection of this application. Inside.

Claims (17)

  1. 一种多缸发动机***,其具有四个冲程,依次为进气冲程、压缩冲程、点火冲程和排气冲程,其特征在于,所述多缸发动机***包括气缸、活塞、活塞连杆、曲轴和驱动装置;A multi-cylinder engine system having four strokes, which are an intake stroke, a compression stroke, an ignition stroke, and an exhaust stroke in order, is characterized in that the multi-cylinder engine system includes a cylinder, a piston, a piston connecting rod, a crankshaft, and Driving device
    所述气缸设置有N个,其中,N=3,各所述气缸具有首尾连通的气室,各所述气缸首尾相对并形成N边形;N cylinders are provided, where N = 3, each of the cylinders has an air chamber communicating end to end, and each of the cylinders is opposite to each other and forms an N polygon;
    所述活塞设置有M个,其中,M=2N,各所述气缸分别配置有两个所述活塞且两所述活塞均与所述气室相适配并沿所述气室的轴线并保持方向相反的往复滑动;M pistons are provided, where M = 2N, and each of the cylinders is respectively provided with two of the pistons, and both of the pistons are adapted to the air chamber and are held along the axis of the air chamber. Back and forth sliding in opposite directions;
    所述曲轴设置的数量与所述气缸设置的数量相同,任意相邻的两所述气缸之间配置有一个所述曲轴;The number of the crankshafts is the same as the number of the cylinders, and one of the crankshafts is arranged between any two adjacent cylinders;
    所述活塞连杆设置的数量与所述活塞设置的数量相同,各所述活塞分别配置有一个所述活塞连杆,所述活塞连杆的一端伸入所述气室并与所述活塞转动连接,且另一端位于所述气室之外,两所述活塞连杆中位于相邻的两所述气缸相对的端口处的端部均与所述曲轴转动连接,任意相邻的两所述气室的轴线沿着所述曲轴的轴线相错,所述驱动装置的输出轴与各所述曲轴连接以驱动各所述曲轴转动,各所述曲轴通过所述活塞连杆带动所述活塞沿着所述气室的轴线往复滑动,各所述气缸在与其连接的所述曲轴旋转720°后依次完成所述进气冲程、所述压缩冲程、所述点火冲程和所述排气冲程。The number of the piston connecting rods is the same as that of the pistons. Each of the pistons is provided with one of the piston connecting rods, and one end of the piston connecting rod extends into the air chamber and rotates with the piston. Connected, and the other end is outside the air chamber, the ends of the two piston rods located at the opposite ports of the two adjacent cylinders are both rotationally connected to the crankshaft, and any adjacent two of the two The axis of the air chamber is staggered along the axis of the crankshaft. The output shaft of the drive device is connected to each of the crankshafts to drive each of the crankshafts to rotate. Each of the crankshafts drives the piston along the piston rod Reciprocatingly sliding along the axis of the air chamber, each of the cylinders sequentially completes the intake stroke, the compression stroke, the ignition stroke, and the exhaust stroke after the crankshaft connected thereto rotates 720 °.
  2. 如权利要求1所述的多缸发动机***,其特征在于,三个所述气缸共同围成三角形,各所述曲轴与对应的两所述活塞连杆之间分别具有一连接位,两所述连接位之间具有相位差,且相位差为180°。The multi-cylinder engine system according to claim 1, wherein three of the cylinders are collectively enclosed in a triangle, and each of the crankshafts and the corresponding two of the piston connecting rods have a connection position, and the two There is a phase difference between the connected bits, and the phase difference is 180 °.
  3. 如权利要求1至2中任一项所述的多缸发动机***,其特征在于,所述多缸发动机***还包括气缸架,所述气缸架包括主架体,所述主架体具有开口朝向外侧的安装槽,所述安装槽设置的数量与所述气缸设置的数量相同,各所述安装槽均匀布置于所述主架体的周侧且首尾相连通,各所述气缸分别固定于一所述安装槽,各所述曲轴均转动连接于所述主架体。The multi-cylinder engine system according to any one of claims 1 to 2, wherein the multi-cylinder engine system further comprises a cylinder block, the cylinder block includes a main frame body, and the main frame body has an opening direction The number of mounting grooves on the outer side is the same as that of the cylinder. Each of the mounting grooves is evenly arranged on the peripheral side of the main frame body and communicates with the end to end. Each of the cylinders is fixed to a In the mounting groove, each of the crankshafts is rotatably connected to the main frame body.
  4. 如权利要求3所述的多缸发动机***,其特征在于,所述主架体包括上盖板、下盖板以及连接所述上盖板与所述下盖板的连接架体,所述上盖板开设有上通孔,所述下盖板开设有下通孔,所述上通孔与所述下通孔相对,所述连接架体的上端连接于所述上盖板的上通孔处且其下端连接于所述下盖板的下通孔处;所述上盖板、所述下盖板以及所述连接架体共同形成N个所述安装槽。The multi-cylinder engine system according to claim 3, wherein the main frame body comprises an upper cover plate, a lower cover plate, and a connection frame body connecting the upper cover plate and the lower cover plate, and the upper frame body The cover plate is provided with an upper through hole, and the lower cover plate is provided with a lower through hole. The upper through hole is opposite to the lower through hole, and the upper end of the connecting frame body is connected to the upper through hole of the upper cover plate. And its lower end is connected to the lower through hole of the lower cover plate; the upper cover plate, the lower cover plate, and the connecting frame body together form N said mounting grooves.
  5. 如权利要求3所述的多缸发动机***,其特征在于,所述多缸发动机***还包括动力传动组件,所述动力传动组件用于将所述驱动装置的动力传递至各所述曲轴,以驱动各所述曲轴同步转动。The multi-cylinder engine system according to claim 3, wherein the multi-cylinder engine system further comprises a power transmission assembly for transmitting the power of the driving device to each of the crankshafts to Each of the crankshafts is driven to rotate synchronously.
  6. 如权利要求5所述的多缸发动机***,其特征在于,所述动力传动组件包括传动链轴、链条、主动传动链轮以及从动传动链轮;The multi-cylinder engine system of claim 5, wherein the power transmission component comprises a transmission chain shaft, a chain, a driving transmission sprocket, and a driven transmission sprocket;
    所述传动链轴穿插于所述主架体并与所述主架体转动连接,所述传动链轴的轴线与N个所述曲轴共同形成的中心线相同,所述驱动装置的输出轴与所述传动链轴连接并同步转动;The transmission chain shaft is inserted into the main frame body and is rotatably connected to the main frame body. The axis of the transmission chain shaft is the same as the center line formed by the N crankshafts. The output shaft of the driving device is The transmission chain shaft is connected and synchronously rotated;
    所述主动传动链轮位于所述主架体的上侧并与所述传动链轴固定连接,所述主动传动链轮的轴线与所述传动链轴的轴线相同;The active transmission sprocket is located on the upper side of the main frame body and is fixedly connected to the transmission chain shaft, and the axis of the active transmission sprocket is the same as the axis of the transmission chain shaft;
    所述从动传动链轮的数量与所述曲轴的数量相同,各所述从动传动链轮均位于所述主架体的上侧并分别固定于一所述曲轴上,所述从动传动链轮的轴线与所述曲轴的转动轴线相同,各所述从动传动链轮围绕于所述主动传动链轮周侧,所述链条啮合所述主动传动链轮与各所述从动传动链轮。The number of the driven transmission sprocket is the same as the number of the crankshaft, and each of the driven transmission sprocket is located on the upper side of the main frame body and is fixed on a crankshaft, respectively. The axis of the sprocket is the same as the axis of rotation of the crankshaft, each of the driven transmission sprocket surrounds the peripheral side of the driving transmission sprocket, and the chain meshes with the driving transmission sprocket and each of the driven transmission chain wheel.
  7. 如权利要求5所述的多缸发动机***,其特征在于,所述动力传动组件包括传动轴、主动传动齿轮以及从动传动齿轮,The multi-cylinder engine system according to claim 5, wherein the power transmission component comprises a transmission shaft, a driving transmission gear, and a driven transmission gear,
    所述传动轴穿插于所述主架体并与所述主架体转动连接,所述传动轴的轴线与N个所述曲轴共同形成的中心线相同,所述驱动装置的输出轴与所述传动轴连接并同步转动;The transmission shaft is inserted into the main frame body and is rotatably connected to the main frame body. The axis of the transmission shaft is the same as the center line formed by the N crankshafts. The output shaft of the driving device is connected to the main shaft. The drive shaft is connected and rotates synchronously;
    所述主动传动齿轮位于所述主架体的上侧并与所述传动轴固定连接,所述主动传动齿轮的轴线与所述传动轴的轴线相同;The driving transmission gear is located on the upper side of the main frame body and is fixedly connected to the transmission shaft, and the axis of the driving transmission gear is the same as the axis of the transmission shaft;
    所述从动传动齿轮的数量与所述曲轴的数量相同,各所述从动传动齿轮均位于所述主架体的上侧并分别固定于一所述曲轴上,所述从动传动齿轮的轴线与所述曲轴的转动轴线相同,各所述从动传动齿轮围绕于所述主动传动齿轮周侧并均与所述主动传动齿轮相啮合。The number of the driven transmission gears is the same as the number of the crankshafts. Each of the driven transmission gears is located on the upper side of the main frame body and is respectively fixed to a crankshaft. The axis is the same as the rotation axis of the crankshaft, and each of the driven transmission gears surrounds the peripheral side of the driving transmission gear and meshes with the driving transmission gear.
  8. 如权利要求7所述的多缸发动机***,其特征在于,所述动力传动组件还包括中间齿轮,所述中间齿轮的数量与所述从动传动齿轮的数量相同;The multi-cylinder engine system of claim 7, wherein the power transmission assembly further includes intermediate gears, and the number of the intermediate gears is the same as the number of the driven transmission gears;
    所述气缸架还包括与所述主架体的上侧面连接并位于所述传动轴与各所述曲轴之间的中转轴,所述中转轴的数量与所述中间齿轮的数量相同,各所述中间齿轮分别转动连接于一所述中转轴并分别与所述主动传动齿轮和一所述从动传动齿轮相啮合,所述中间齿轮的轴线与所述中转轴的轴线相同。The cylinder frame further includes intermediate shafts connected to the upper side of the main frame body and located between the transmission shaft and each of the crankshafts. The number of the intermediate shafts is the same as the number of the intermediate gears. The intermediate gear is rotatably connected to a relay shaft and meshes with the driving gear and the driven gear, respectively. The axis of the intermediate gear is the same as the axis of the relay shaft.
  9. 如权利要求3所述的多缸发动机***,其特征在于,各所述曲轴包括两主轴、三个曲柄和两个连杆轴颈,任意相邻的两所述曲柄之间连接有一所述连杆轴颈,两所述主轴分别连接于三个所述曲柄中位于两端的两所述曲柄,各所述连杆轴颈分别与一所述活塞连杆转动连接,两所述主轴的轴线相同,两所述连杆轴颈的轴线均与两所述主轴的轴线平行设置,且两所述连杆轴颈分别位于两所述主轴的两侧,两所述主轴的中心轴线与两所述连杆轴颈的中心轴线共面设置。The multi-cylinder engine system according to claim 3, wherein each of the crankshafts includes two main shafts, three cranks, and two connecting rod journals, and one of the crankshafts is connected between any two adjacent cranks. A rod journal, the two main shafts are respectively connected to the two cranks at two ends of the three cranks, each of the connecting rod journals is rotatably connected with a piston connecting rod, and the axes of the two main shafts are the same The axes of the two connecting rod journals are arranged parallel to the axes of the two main shafts, and the two connecting rod journals are respectively located on both sides of the two main shafts, and the central axes of the two main shafts and the two The central axes of the connecting rod journals are coplanar.
  10. 如权利要求3所述的多缸发动机***,其特征在于,所述多缸发动机***还包括配气机构,所述配气机构设置的数量与所述气缸设置的数量相同且一一对应并固定于所述气缸,各所述气缸开设有与所述气室连通的通气孔,各所述配气机构具有配气孔,所述通气孔与所述配气孔连通,所述驱动装置的输出轴与各所述配气机构连接,各所述配气机构在所述进气冲程时向所述气室供气,而在所述排气冲程时将所述气室内的气体排出,同时,在所述压缩冲程和所述点火冲程时闭合所述配气孔。The multi-cylinder engine system according to claim 3, wherein the multi-cylinder engine system further comprises a gas distribution mechanism, and the number of the gas distribution mechanism is the same as that of the cylinders, and corresponds to and is fixed one by one. In the cylinder, each of the cylinders is provided with a vent hole communicating with the air chamber, each of the gas distribution mechanisms has a vent hole, the vent hole communicates with the vent hole, and an output shaft of the driving device is connected with Each of the gas distribution mechanisms is connected, and each of the gas distribution mechanisms supplies air to the gas chamber during the intake stroke, and discharges gas from the gas chamber during the exhaust stroke, and at the same time, The gas distribution hole is closed during the compression stroke and the ignition stroke.
  11. 如权利要求10所述的多缸发动机***,其特征在于,所述配气孔的横截面形状为圆形、椭圆形和多边形中的一种。The multi-cylinder engine system according to claim 10, wherein a cross-sectional shape of the air distribution hole is one of a circle, an oval, and a polygon.
  12. 如权利要求10所述的多缸发动机***,其特征在于,各所述配气机构包括配气外壳、配气轴阀以及配气转轴,所述配气轴阀与所述配气转轴连接且二者轴线相同,所述配气轴阀设有进气通道和排气通道;The multi-cylinder engine system according to claim 10, wherein each of the valve distribution mechanisms includes a valve casing, a valve shaft, and a valve shaft, and the valve shaft is connected to the valve shaft and The two axes are the same, and the gas distribution shaft valve is provided with an intake passage and an exhaust passage;
    所述配气外壳具有配气容腔以及与所述配气容腔连通的进气口、排气口和轴孔,所述配气轴阀置于所述配气容腔内并与所述配气容腔相适配,所述配气转轴的一端部从所述轴孔穿出并与所述驱动装置连接并联动以带动所述配气轴阀转动,所述配气孔开设于所述配气外壳并与所述配气容腔连通;The gas distribution housing has a gas distribution volume and an air inlet, an exhaust port, and a shaft hole that communicate with the gas distribution volume. The gas distribution shaft valve is placed in the gas distribution volume and communicates with the gas volume. The gas distribution volume is adapted, one end of the gas distribution rotating shaft penetrates from the shaft hole and is connected in parallel with the driving device to drive the gas distribution shaft valve to rotate, and the gas distribution hole is opened in the A gas distribution shell and communicating with the gas distribution cavity;
    所述进气通道在所述气缸处于所述进气冲程时连通所述进气口和所述配气孔以使外部气体导入所述气缸;The intake passage communicates the intake port and the air distribution hole when the cylinder is in the intake stroke to allow external air to be introduced into the cylinder;
    所述排气通道在所述气缸处于所述排气冲程时连通所述配气孔和所述排气口以使所述气缸内气体排出;The exhaust passage communicates with the air distribution hole and the exhaust port when the cylinder is in the exhaust stroke to exhaust gas in the cylinder;
    所述配气轴阀在所述气缸处于所述压缩冲程和所述点火冲程时封堵所述进气口、所述排气口和所述配气孔。The valve shaft valve blocks the intake port, the exhaust port, and the valve port when the cylinder is in the compression stroke and the ignition stroke.
  13. 如权利要求12所述的多缸发动机***,其特征在于,所述进气通道具有第一进气道口和第一出气道口,所述排气通道具有第二进气道口和第二出气道口,其中,所述第一出气道口与所述第二进气道口位于与所述配气轴阀的轴线相垂直的同一径向面;The multi-cylinder engine system according to claim 12, wherein the intake passage has a first inlet port and a first outlet port, and the exhaust passage has a second inlet port and a second outlet port, Wherein, the first air outlet port and the second air inlet port are located on the same radial plane that is perpendicular to the axis of the gas distribution shaft valve;
    所述第一出气道口在所述气缸处于所述进气冲程时与所述配气孔对接;The first outlet port is docked with the air distribution hole when the cylinder is in the intake stroke;
    所述第二进气道口在所述气缸处于所述排气冲程时与所述配气孔对接。The second intake port is docked with the air distribution hole when the cylinder is in the exhaust stroke.
  14. 如权利要求12所述的多缸发动机***,其特征在于,所述多缸发动机还包括配气传动组件,所述配气传动组件包括正时主动齿轮、正时从动齿轮和齿型同步带,所述正时主动齿轮位于所述主架体的下侧并与所述传动轴固定连接,所述正时主动齿轮的轴线与所述传动轴的轴线相同;The multi-cylinder engine system according to claim 12, wherein the multi-cylinder engine further comprises an air distribution transmission assembly, and the air distribution transmission assembly includes a timing driving gear, a timing driven gear, and a toothed timing belt The timing driving gear is located on the lower side of the main frame body and is fixedly connected to the transmission shaft, and the axis of the timing driving gear is the same as the axis of the transmission shaft;
    所述正时从动齿轮的数量与所述配气机构的数量相同,各所述正时从动齿轮均位于所述主架体的下侧并分别与一所述配气转轴中位于所述配气外壳之外的端部固定连接,所述正时从动齿轮的轴线与所述配气转轴的轴线相同;The number of the timing driven gears is the same as that of the gas distribution mechanism, and each of the timing driven gears is located on the lower side of the main frame body and is located in the gas distribution shaft with the gas distribution shaft. The ends outside the valve housing are fixedly connected, and the axis of the timing driven gear is the same as the axis of the valve shaft;
    所述齿型同步带连接所述正时主动齿轮和各所述正时从动齿轮,所述正时主动齿轮以及各所述正时从动齿轮均与所述齿型同步带相啮合,所述正时主动齿轮通过所述齿型同步带带动各所述正时从动齿轮同步转动。The toothed timing belt connects the timing driving gear and each of the timing driven gears, and the timing driving gear and each of the timing driven gears are meshed with the toothed timing belt, so The timing driving gear drives each timing driven gear to rotate synchronously through the toothed timing belt.
  15. 如权利要求13所述的多缸发动机***,其特征在于,各所述配气机构还包括设于所述配气容腔内的增压装置,所述增压装置包括增压风扇以及与所述增压风扇连接并用于驱动所述增压风扇运转的传动结构,所述传动结构连接于所述配气转轴并与所述配气转轴联动;The multi-cylinder engine system according to claim 13, wherein each of said air distribution mechanisms further comprises a supercharging device provided in said air distribution volume, said supercharging device comprising a supercharging fan and a turbocharger A transmission structure connected to the booster fan and used to drive the booster fan to operate, the transmission structure is connected to the air distribution shaft and is linked with the air distribution shaft;
    所述配气轴阀具有第一配气端以及与所述第一配气端相对的第二配气端,所述第二配气端与所述轴孔相面对,所述增压装置与所述第一配气端的端面相面对;The gas distribution shaft valve has a first gas distribution end and a second gas distribution end opposite to the first gas distribution end, the second gas distribution end faces the shaft hole, and the booster device Facing the end face of the first gas distribution end;
    所述第一进气道口开设于所述第一配气端的端面,所述增压风扇相对位于所述第一配气端的端面与所述进气口之间。The first air inlet port is opened at an end surface of the first air distribution end, and the booster fan is relatively located between the end surface of the first air distribution end and the air inlet.
  16. 如权利要求15所述的多缸发动机***,其特征在于,所述传动结构包括外齿圈、太阳轮、行星架和多个行星齿轮,所述外齿圈套于所述配气转轴之上并与所述配气转轴同步转动,各所述行星齿轮均位于所述外齿圈之内并均与所述外齿圈相啮合,所述太阳轮套于所述配气转轴且与所述配气转轴间隙配合,各所述行星齿轮均与所述太阳轮相啮合,所述增压风扇与所述太阳轮的一端连接并随所述太阳轮的转动而转动,所述行星架位于所述太阳轮与所述增压风扇之间并固定于所述配气容腔,各所述行星齿轮转动连接于所述行星架上。The multi-cylinder engine system according to claim 15, wherein the transmission structure comprises an outer ring gear, a sun gear, a planet carrier, and a plurality of planetary gears, and the outer ring gear is sleeved on the gas distribution shaft and Synchronized with the valve shaft, each of the planetary gears is located inside the outer ring gear and meshes with the outer ring gear. The sun gear is sleeved on the valve shaft and is connected with the valve. The air rotating shaft is fitted with clearance, each of the planetary gears is engaged with the sun gear, the booster fan is connected to one end of the sun gear and rotates with the rotation of the sun gear, and the planet carrier is located on the sun gear. A sun gear and the booster fan are fixed to the air distribution volume, and each of the planet gears is rotatably connected to the planet carrier.
  17. 如权利要求16所述的多缸发动机***,其特征在于,所述传动结构还包括轴套,所述轴套套装于所述配气转轴之上并与所述配气转轴间隙配合,所述轴套的一端连接所述太阳轮且另一端连接所述增压风扇,所述轴套的侧部与所述进气口相面对。The multi-cylinder engine system according to claim 16, wherein the transmission structure further comprises a sleeve, which is sleeved on the valve shaft and cooperates with the valve shaft, One end of a shaft sleeve is connected to the sun gear and the other end is connected to the booster fan, and a side portion of the shaft sleeve faces the air inlet.
PCT/CN2019/095589 2018-07-16 2019-07-11 Multi-cylinder engine system WO2020015575A1 (en)

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CN208441929U (en) * 2018-07-16 2019-01-29 倪梓欣 A kind of multi-cylinder engine system
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