CN109707519B - Conversion valve for switching fuel of main and auxiliary fuel tanks of engine - Google Patents
Conversion valve for switching fuel of main and auxiliary fuel tanks of engine Download PDFInfo
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- CN109707519B CN109707519B CN201910179348.4A CN201910179348A CN109707519B CN 109707519 B CN109707519 B CN 109707519B CN 201910179348 A CN201910179348 A CN 201910179348A CN 109707519 B CN109707519 B CN 109707519B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The invention discloses a change-over valve for switching fuel of a main fuel tank and an auxiliary fuel tank of an engine, which comprises a valve body, and an engine oil inlet, an auxiliary fuel tank oil outlet, a main fuel tank oil return port, an auxiliary fuel tank oil return port and an engine oil return port which are arranged on the valve body, wherein an oil suction core hole communicated with the engine oil inlet, the auxiliary fuel tank oil outlet and the main fuel tank oil outlet is arranged on the valve body, an oil return core hole communicated with the engine oil return port, the main fuel tank oil return port and the auxiliary fuel tank oil return port is arranged on the valve body, an oil suction end valve core is arranged in the oil suction core hole, an oil return end valve core is arranged in the oil return core hole, notches are arranged on the outer edges of the oil suction end valve core and the oil return end valve core, and a driving structure for driving the oil suction end valve core and the oil return end valve core to rotate is arranged in the valve body. The switching efficiency is high, and the problem of oil mixing of the oil tank can be avoided.
Description
Technical Field
The invention relates to the technical field of automobile engines, in particular to a change-over valve for switching fuel oil of a main fuel tank and an auxiliary fuel tank of an engine.
Background
At present, some diesel engines are provided with two fuel tanks, wherein a main fuel tank and an auxiliary fuel tank respectively store diesel oil with different high and low labels, and the diesel oil is switched by a fuel oil switching valve; the conventional fuel switching and switching valve has complex structure and low switching efficiency, and has the problems of oil mixing of high and low grade fuel tanks and poor starting performance of a diesel engine in a low-temperature environment during switching, thereby influencing the use effect.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a change-over valve for switching fuel oil of a main fuel tank and an auxiliary fuel tank of an engine, so as to achieve the purposes of simple structure and avoiding fuel mixing of the fuel tanks.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the change-over valve for switching fuel of the main fuel tank and the auxiliary fuel tank of the engine comprises a valve body, an engine oil inlet, an auxiliary fuel tank oil outlet, a main fuel tank oil return port, an auxiliary fuel tank oil return port and an engine oil return port, wherein the engine oil inlet, the auxiliary fuel tank oil outlet, the main fuel tank oil return port, the auxiliary fuel tank oil return port and the main fuel tank oil return port are arranged on the valve body, an oil suction core hole communicated with the engine oil inlet, the auxiliary fuel tank oil outlet and the main fuel tank oil outlet is formed in the valve body, an oil suction end valve core is arranged in the oil suction core hole, notches are formed in the outer edges of the oil suction end valve core and the oil return end valve core, and a driving structure for driving the oil suction end valve core and the oil return end valve core to rotate is arranged in the valve body.
Furthermore, the driving structure comprises a motor and a driving wheel which are connected, the upper end of a valve core at the oil suction end is connected with an oil suction end wheel mechanism, the upper end of a valve core at the oil return end is connected with an oil return end wheel mechanism, and the driving wheel is connected with the oil suction end wheel mechanism and the oil return end wheel mechanism.
The cooling system is characterized in that the valve body is provided with a cooling liquid inlet, a cooling liquid outlet, a main oil tank cooling liquid inlet and a main oil tank cooling liquid outlet, and a pilot water valve assembly is arranged at the position, corresponding to the cooling liquid inlet, of the valve body.
The oil suction end valve core and the oil return end valve core are both cylinders, and the positions of the notches corresponding to the corresponding oil ports are arranged on the outer edges of the cylinders.
The oil suction end wheel mechanism and the oil return end wheel mechanism are both of a cross wheel structure, and a shifting lever for shifting the cross wheel structure to rotate intermittently is arranged on the driving wheel.
The motor is provided with a worm, the driving wheel is provided with a worm gear matched with the worm, the worm and the worm gear form a worm-worm gear transmission pair to drive the driving wheel to rotate, and then the cross-shaped wheel structure at the oil suction end and the cross-shaped wheel structure at the oil return end are pushed to realize intermittent alternate rotation.
And a lower cover plate is arranged below the valve body, and an oil absorption core hole and an oil return core hole on the valve body are arranged corresponding to the lower cover plate.
The top of valve body is equipped with the upper cover plate, corresponds upper cover plate department on the valve body and is equipped with the mounting groove, and upper cover plate and mounting groove form seal chamber, motor, drive wheel and two cross wheel structures all are established in seal chamber.
The motor also comprises an integrated circuit board used for controlling the motor to work, and the integrated circuit board is arranged in the upper cover plate.
The top of drive wheel is stretched out and is had the pivot, and the cover is equipped with switching wheel and turbine in the pivot, and the turbine passes through the switching wheel to be fixed on the drive wheel, and switching wheel and cross wheel all are equipped with corresponding magnet structurally, are equipped with the inductor that can respond to the magnet position on the integrated circuit board.
Compared with the prior art, the invention has the following advantages:
the change-over valve for switching the fuel oil of the main fuel tank and the auxiliary fuel tank of the engine has the advantages of reasonable structure design, simple structure, small occupied space, convenient arrangement and high switching efficiency; when the function of switching the high-grade oil tank to the low-grade oil tank is executed, the oil inlet pipe and the oil return pipe are switched simultaneously, when the low-grade oil tank is switched to the high-grade oil tank, the oil inlet pipe is switched firstly, and the oil return pipe is switched after being delayed for a period of time until the oil return pipe is filled with high-grade diesel oil, so that the problem of oil mixing of the oil tank is avoided; meanwhile, under a low-temperature environment, engine cooling liquid can be led in to heat diesel oil in the main oil tank, and the problem that the starting performance of the diesel oil engine is poor under the low-temperature environment is solved.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is an exploded view of a changeover valve according to the present invention.
Fig. 2 is a schematic diagram of a coolant-water valve circuit of the changeover valve of the present invention.
Fig. 3 is a schematic view of an oil valve circuit of the change-over valve of the present invention.
Fig. 4 is a schematic view of a cross wheel at the oil suction end of the diverter valve of the present invention.
FIG. 5 is a schematic view of a scavenge port cross of a diverter valve according to the present invention.
FIG. 6 is a schematic view of the drive wheel assembly of the present invention.
Fig. 7 and 8 are schematic views showing the construction of the valve core of the switching valve according to the present invention.
FIG. 9 is a schematic diagram of a circuit board according to the present invention.
Fig. 10 is a schematic view showing the connection ports of the valve body of the change-over valve according to the present invention.
Fig. 11 is a schematic view of the connection ports of the valve body of the change-over valve according to the second embodiment of the present invention.
FIG. 12 is a first schematic view of a diaphragm cover of a diverter valve according to the present invention.
FIG. 13 is a second schematic view of a diaphragm cover of a diverter valve according to the present invention.
Fig. 14 is a first schematic view of a lower cover plate of a diverter valve according to the present invention.
FIG. 15 is a schematic view of a lower cover plate of a diverter valve according to the present invention
Fig. 16 is a first schematic view of the upper cover plate of the changeover valve of the present invention.
Fig. 17 is a second schematic view of the upper cover plate of the changeover valve of the present invention.
Fig. 18 to 25 are schematic views showing states of the switching valve of the present invention.
Fig. 26 is a flow chart of control logic for the transfer valve of the present invention.
In the figure:
1, a valve body; 3, a lower cover plate; 5-1, a valve core at an oil suction end; 5-1a flat part of the oil suction end valve core shaft; 5-1b slotting part on the outer cylindrical surface of the valve core at the oil suction end; 5-2, an oil return end valve core; 5-2a flat part of the valve core shaft at the oil return end; 5-2b, slotting the outer cylindrical surface of the valve core at the oil return end; 10 a pilot water valve assembly; 12 a pilot water valve connecting plate; 14a diaphragm cover plate; 14a diaphragm cover plate coolant outlet; 14b a diaphragm cover plate coolant inlet; 17 a main valve port truncated cone spiral spring of the pilot valve; 18 a membrane support; 19a diaphragm; 19a upper chamber; 19b a lower chamber; 20, filtering by using a filter screen; 21 a reduction motor; 22 a speed reducing motor mounting support; 24 an integrated circuit board; 24a Hall element I; 24b a Hall element II; 24c a Hall element III; 24d Hall element IV; 25, an upper cover plate; 27-1 oil suction end cross wheel mechanism magnet; 27-2 oil return end cross wheel mechanism magnet; 27-3 switching wheel mechanism magnets; 28 transfer wheels; 29 a turbine; 30 driving wheels; 31-1 oil suction end cross wheel mechanism; 31-1a flat part of a cross wheel mechanism at an oil suction end; 31-2 oil return end cross wheel mechanism; 31-2a oil return end cross wheel mechanism flat part; a 32 worm; 33 special-shaped sealing rings;
1a is connected with an oil inlet of the engine; 1b is connected with an oil outlet of an auxiliary oil tank; 1c is connected with an oil outlet of the main oil tank; 1d is connected with a main oil tank and an atmosphere communication port; 1e is connected with an oil return port of the main oil tank; 1f is connected with an oil return port of the auxiliary oil tank; 1g is connected with an oil return port of the engine; the cooling liquid inlet is connected for 1 h; 1i is connected with a cooling liquid outlet; 1j is connected with a cooling liquid inlet of a main oil tank; 1k is connected with a cooling liquid outlet of the main oil tank.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
The change-over valve for switching fuel of the main and auxiliary fuel tanks of the engine comprises a valve body, an engine oil inlet, an auxiliary fuel tank oil outlet, a main fuel tank oil return port, an auxiliary fuel tank oil return port and an engine oil return port, wherein the engine oil inlet, the auxiliary fuel tank oil outlet and the main fuel tank oil outlet are arranged on the valve body, an oil suction core hole communicated with the engine oil inlet, the auxiliary fuel tank oil outlet and the main fuel tank oil outlet is formed in the valve body, an oil return core hole communicated with the engine oil return port, the main fuel tank oil return port and the auxiliary fuel tank oil return port is formed in the valve body, an oil suction end valve core is arranged in the oil suction core hole, notches are formed in the outer edges of the oil suction end valve core and the oil return end valve core, and a driving structure for driving the oil suction end valve core and the oil return end valve core to rotate is arranged in the valve body.
The driving structure comprises a motor and a driving wheel which are connected, an oil suction end wheel mechanism is connected to the upper end of an oil suction end valve core, an oil return end wheel mechanism is connected to the upper end of an oil return end valve core, and the driving wheel is connected with the oil suction end wheel mechanism and the oil return end wheel mechanism. The oil suction end wheel mechanism and the oil return end wheel mechanism are both of a cross wheel structure, and a shifting lever for shifting the cross wheel structure to rotate intermittently is arranged on the driving wheel.
The motor is provided with a worm, the driving wheel is provided with a worm gear matched with the worm, the worm and the worm gear form a worm-worm gear transmission pair to drive the driving wheel to rotate, and then the cross-shaped wheel structure at the oil suction end and the cross-shaped wheel structure at the oil return end are pushed to realize intermittent alternate rotation.
The lower cover plate is arranged below the valve body, and the oil absorption core hole and the oil return core hole in the valve body correspond to the lower cover plate, so that the valve body is convenient to mount and dismount.
The top of valve body is equipped with the upper cover plate, corresponds upper cover plate department on the valve body and is equipped with the mounting groove, and upper cover plate and mounting groove form seal chamber, motor, drive wheel and two cross wheel structures all are established in seal chamber, compact structure.
The integrated circuit board is arranged in the upper cover plate and is used for controlling the motor to work; the top of drive wheel is stretched out and is had the pivot, and the cover is equipped with switching wheel and turbine in the pivot, and the turbine passes through the switching wheel to be fixed on the drive wheel, and switching wheel and cross wheel all are equipped with corresponding magnet structurally, are equipped with the inductor that can respond to the magnet position on the integrated circuit board.
The valve body is provided with a coolant inlet, a coolant outlet, a main oil tank coolant inlet and a main oil tank coolant outlet, and a pilot water valve assembly is arranged on the valve body corresponding to the coolant inlet.
The oil suction end valve core and the oil return end valve core are cylinders, the positions of the notches corresponding to the corresponding oil ports are arranged on the outer edges of the cylinders, and the on-off of the corresponding oil ports is controlled through the positions of the rotary notches, so that the structure is simple.
The valve has the advantages of simple structure, small occupied space, convenient arrangement and high switching efficiency; when the function of switching the high-grade oil tank to the low-grade oil tank is executed, the oil inlet pipe and the oil return pipe are switched simultaneously, when the low-grade oil tank is switched to the high-grade oil tank, the oil inlet pipe is switched firstly, and the oil return pipe is switched after being delayed for a period of time until the oil return pipe is filled with high-grade diesel oil, so that the problem of oil mixing of the oil tank is avoided; meanwhile, under a low-temperature environment, engine cooling liquid can be led in to heat diesel oil in the main oil tank, and the problem that the starting performance of the diesel oil engine is poor under the low-temperature environment is solved.
As shown in fig. 1 and 26, preferred specific examples are:
the conversion valve structure comprises a valve body 1, a pilot water valve assembly 10, a pilot water valve connecting plate 12, a diaphragm 19, a diaphragm support 18, a pilot valve main valve port truncated cone spiral spring 17, a diaphragm cover plate 14, a filter screen 20, an oil return end valve core 5-2, an oil suction end valve core 5-1, a lower cover plate 3, an oil suction end cross wheel mechanism 31-1, an oil return end cross wheel mechanism 31-2, a switching wheel 28, a driving wheel 30, a turbine 29, an oil suction end cross wheel mechanism magnet 27-1, an oil return end cross wheel mechanism magnet 27-2, a switching wheel mechanism magnet 27-3, a worm 32, a speed reduction motor 21, a speed reduction motor support 22, an integrated circuit board 24 and an upper cover plate 25.
The pilot water valve assembly 10 is in screw connection with the valve body 1 through a pilot water valve connecting plate 12, the diaphragm 19, the diaphragm support 18 and the truncated cone spiral spring 17 are pressed in a cavity on the valve body 1 through a diaphragm cover plate 14, the oil suction end valve core 5-1 and the oil return end valve core 5-2 are axially installed in an installation hole on the valve body 1 through a lower cover plate 3, the oil suction end cross wheel mechanism 31-1, the oil return end cross wheel mechanism 31-2, the oil suction end cross wheel mechanism magnet 27-1 and the oil return end cross wheel mechanism magnet 27-2 are installed in the installation hole on the valve body 1 after being pressed in an interference fit mode, and the cross wheel mechanisms 31-1 and 31-2 are stirred to rotate intermittently through a stirring rod on the driving wheel 30.
The bottom of the shaft of the driving wheel 30 is arranged in the mounting hole on the valve body 1, and the top of the shaft of the driving wheel 30 is limited and fixed through a slotted hole on the upper cover plate 25. The reducing motor 21 is arranged on the reducing motor support 22, the worm 32 and the output shaft of the reducing motor 21 are coaxially arranged together, and the worm 32 and the worm wheel 29 form a worm wheel-worm transmission pair, so that the driving wheel 30 is driven to indirectly realize the intermittent motion of the cross wheel mechanisms 31-1 and 31-2 and the valve cores 5-1 and 5-2.
The valve body 1 is arranged into a structure manufactured through die casting or injection molding, a plurality of connectors on the valve body 1 are arranged into cylindrical holes, and the valve body mainly comprises an engine oil inlet 1a, an auxiliary oil tank oil outlet 1b, a main oil tank oil outlet 1c, a main oil tank and atmosphere communication port 1d, a main oil tank oil return port 1e, an auxiliary oil tank oil return port 1f, an engine oil return port 1g, a cooling liquid inlet 1h, a cooling liquid outlet 1i, a main oil tank cooling liquid inlet 1j and a main oil tank cooling liquid outlet 1 k.
The pilot water valve assembly 10 is a switching electromagnetic valve, when the power is not on, the cooling liquid in the diaphragm upper chamber 19a cannot flow out, the diaphragm 19 is always in a sealed state, after the power is on, the cooling liquid in the diaphragm upper chamber 19a flows out, the pressure in the diaphragm upper chamber 19a is gradually smaller than the pressure in the lower chamber 19b, the diaphragm 19 is opened, and the cooling liquid flows out from the cooling liquid inlet 1h of the valve body (1) to the cooling liquid inlet 1j of the main oil tank.
The diaphragm cover plate 14 is made by die casting or injection molding, and is provided with a cooling liquid inlet 14b and a cooling liquid outlet 14a, and the inner hole diameter of the cylindrical hole of the inlet 14b is smaller than that of the cylindrical hole of the outlet 14a, so that the flow of the outflow cooling liquid is larger than that of the inlet cooling liquid, and the pressure in the upper chamber 19a is rapidly reduced.
The valve cores 5-1 and 5-2 are arranged into a structure manufactured in a machining mode, flat mounting parts 5-1a and 5-2a are turned at the end parts of valve core shafts, so that the valve cores are conveniently matched and mounted with flat structures 31-1a and 31-2a of a cross wheel mechanism, 5-1b and 5-2b are formed in cylindrical surface grooves of the valve cores 5-1 and 5-2, and the oil passages are respectively controlled in the intermittent rotation process of the valve cores 5-1 and 5-2. When the slotted parts 5-1b and 5-2b face the oil hole in the valve body, the oil hole is unblocked, and when the non-slotted part surrounds the oil hole in the valve body, the oil hole is closed. The valve cores 5-1 and 5-2 are in small clearance fit with the valve body 1, and both resistance and internal leakage in the rotating process are considered.
The cross wheel mechanisms 31-1 and 31-2 are set to be of a machining mode or an injection molding manufacturing structure, and small magnet mounting holes are reserved on the end faces of the cross wheel mechanisms, so that the magnets 27-1 and 27-2 can be conveniently installed in a press-fitting mode. The magnets 27-1 and 27-2 and the cross wheel mechanisms 31-1 and 31-2 are arranged in an interference fit mode, and the flat parts 31-1a and 31-2a of the cross wheel mechanisms 31-1 and 31-2 are arranged in a fit mode with the flat parts 5-1a and 5-2a of the valve core shaft.
The driving wheel 30, the turbine 29 and the adapter wheel 28 are connected together through countersunk screws, and magnet mounting holes are reserved in the adapter wheel 28, so that the magnets 27-3 can be conveniently mounted in a press fit mode. The driving wheel 30 is provided with a deflector rod which can move the cross wheel mechanism at the lower part, when the driving wheel 30 rotates, the deflector rod moves the cross wheel mechanisms 31-1 and 31-2 to realize intermittent rotation, and the oil suction end cross wheel 31-1 and the oil return end cross wheel mechanism 31-2 rotate alternately and intermittently.
Four position sensor Hall elements 24a, 24b, 24c and 24d are integrated on the circuit board 24, wherein the Hall element I24 a and the Hall element II 24b are sensed with a magnet 27-3 on the transfer wheel 28 to judge the position of the driving wheel 30, the Hall element III 24c is sensed with a magnet 27-2 on the oil return end cross wheel mechanism 31-2, and the Hall element IV 24d is sensed with a magnet 27-1 on the oil suction end cross wheel mechanism 31-1 to judge the positions of the cross wheel mechanisms 31-1 and 31-2.
The speed reducing motor 21 and the worm 32 are coaxially arranged together, and the rotating speed of the motor 21 is transmitted to the control driving wheel 30 through a worm-turbine transmission pair. The reduction motor 21 is mounted on a reduction motor support 22 by screws, and the reduction motor support 22 is mounted on the valve body 1 by screws.
The lower cover plate 3 is of a die-casting structure, and the lower cover plate 3 is connected with the valve body 1 through screws. The integrated circuit board 24 is installed on the upper cover plate 25 through screws, the upper cover plate 25 is installed together with the valve body 1 through screws, and the special-shaped sealing ring 33 is installed between the upper cover plate 25 and the valve body 1, so that the dustproof and waterproof effects are achieved.
The rotation positions of the oil suction end valve core 5-1 and the oil return end valve core 5-2 depend on the position relation between the driving wheel 30 and the oil suction end cross wheel mechanism 31-1 and the oil return end cross wheel mechanism 31-1, and are particularly represented by the position relation among the oil suction end cross wheel mechanism magnet 27-1, the oil return end cross wheel mechanism magnet 27-2 and the transfer wheel magnet 27-3. The main and auxiliary tank integrated switch valve states come from the control logic of the integrated circuit board 24.
The invention controls the rotating speed of the motor through the control part, and transmits the rotating speed of the motor to the driving wheel mechanism through the turbine-worm transmission pair, so that the oil suction end cross wheel mechanism, the oil return end cross wheel mechanism, the oil suction end valve core and the oil return end valve core can alternately realize intermittent rotation, thereby realizing switching conversion of the oil circuit of the main oil tank and the auxiliary oil tank. The cooling liquid is controlled to enter the main oil tank through the pilot valve water valve assembly, and the diesel oil in the main oil tank is heated in a low-temperature environment.
The invention can solve the problem of poor starting performance of the engine at low temperature and can also solve the problem of oil mixing of high and low grade double oil tanks. When the function of switching from the high-grade oil tank to the low-grade oil tank is executed, the oil inlet pipe and the oil return pipe are switched simultaneously. When the low-grade oil tank is switched to the high-grade oil tank, the oil inlet pipe is switched first, and the oil return pipe is switched after being delayed for a period of time and the high-grade diesel oil is filled in the oil return pipe; avoiding the problem of oil mixing.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (3)
1. The utility model provides a change-over valve for engine major-minor fuel tank fuel switches, includes the valve body and establishes the engine oil inlet on the valve body, connects the minor fuel tank oil-out, connects the main fuel tank oil return opening, connects the minor fuel tank oil return opening and connects the engine oil return opening, its characterized in that: the valve body is provided with an oil suction core hole communicated with an oil inlet of the engine, an oil outlet of the auxiliary oil tank and an oil outlet of the main oil tank, the valve body is provided with an oil return core hole communicated with an oil return port of the engine, an oil return port of the main oil tank and an oil return port of the auxiliary oil tank, an oil suction end valve core is arranged in the oil suction core hole, an oil return end valve core is arranged in the oil return core hole, notches are formed in the outer edges of the oil suction end valve core and the oil return end valve core, and a driving structure for driving the oil suction end valve core and the oil return end valve core to rotate is arranged in the valve body;
the oil suction end valve core and the oil return end valve core are both cylinders, and the positions of the notches corresponding to the corresponding oil ports are arranged on the outer edges of the cylinders;
the driving structure comprises a motor and a driving wheel which are connected, the upper end of a valve core at the oil suction end is connected with an oil suction end wheel mechanism, the upper end of a valve core at the oil return end is connected with an oil return end wheel mechanism, and the driving wheel is connected with the oil suction end wheel mechanism and the oil return end wheel mechanism; the oil suction end wheel mechanism and the oil return end wheel mechanism are both of a cross wheel structure, and a shifting lever for shifting the cross wheel structure to rotate intermittently is arranged on the driving wheel;
the motor is provided with a worm, the driving wheel is provided with a worm wheel matched with the worm, the worm and the worm wheel form a worm-worm wheel transmission pair to drive the driving wheel to rotate, and then the cross wheel structure at the oil suction end and the cross wheel structure at the oil return end are pushed to realize intermittent alternate rotation;
an upper cover plate is arranged above the valve body, a mounting groove is formed in the valve body corresponding to the upper cover plate, a sealing cavity is formed by the upper cover plate and the mounting groove, and the motor, the driving wheel and the two cross wheel structures are all arranged in the sealing cavity; the integrated circuit board is arranged in the upper cover plate; the top of drive wheel is stretched out and is had the pivot, and the cover is equipped with switching wheel and turbine in the pivot, and the turbine passes through the switching wheel to be fixed on the drive wheel, and switching wheel and cross wheel all are equipped with corresponding magnet structurally, are equipped with the inductor that can respond to the magnet position on the integrated circuit board.
2. The change-over valve for switching fuel of the main and sub fuel tanks of the engine as claimed in claim 1, wherein: the cooling system is characterized in that the valve body is provided with a cooling liquid inlet, a cooling liquid outlet, a main oil tank cooling liquid inlet and a main oil tank cooling liquid outlet, and a pilot water valve assembly is arranged at the position, corresponding to the cooling liquid inlet, of the valve body.
3. The change-over valve for switching fuel of the main and sub fuel tanks of the engine as claimed in claim 1, wherein: and a lower cover plate is arranged below the valve body, and an oil absorption core hole and an oil return core hole on the valve body are arranged corresponding to the lower cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179348.4A CN109707519B (en) | 2019-03-11 | 2019-03-11 | Conversion valve for switching fuel of main and auxiliary fuel tanks of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179348.4A CN109707519B (en) | 2019-03-11 | 2019-03-11 | Conversion valve for switching fuel of main and auxiliary fuel tanks of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109707519A CN109707519A (en) | 2019-05-03 |
| CN109707519B true CN109707519B (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910179348.4A Active CN109707519B (en) | 2019-03-11 | 2019-03-11 | Conversion valve for switching fuel of main and auxiliary fuel tanks of engine |
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| CN (1) | CN109707519B (en) |
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| CN112682539B (en) * | 2020-12-25 | 2022-09-27 | 瑞立集团瑞安汽车零部件有限公司 | Ball-head type oil tank conversion valve with speed reducing mechanism |
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