CN112112733A - Valve driving structure of engine and using method thereof - Google Patents
Valve driving structure of engine and using method thereof Download PDFInfo
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- CN112112733A CN112112733A CN202011000072.8A CN202011000072A CN112112733A CN 112112733 A CN112112733 A CN 112112733A CN 202011000072 A CN202011000072 A CN 202011000072A CN 112112733 A CN112112733 A CN 112112733A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1808—Number of cylinders two
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F2001/4207—Arrangements with one conduit connected with two valves; Arrangements connecting one valve with two conduits
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention discloses a valve driving structure of an engine, which comprises an engine body, wherein 2 combustion chambers and cam shafts are arranged in the engine body, and the combustion chambers are respectively positioned on two sides of the engine body; the camshaft comprises an air inlet camshaft and an air outlet camshaft and is positioned between the two side combustion chambers; the two sides of the air inlet cam shaft are respectively provided with a tappet, and the top end of each tappet is provided with an air inlet valve; the peach-shaped structure of the air inlet cam shaft drives the tappet to move, so that the air inlet valve is opened and closed; the two sides of the exhaust camshaft are respectively provided with a tappet, and the top end of each tappet is provided with an exhaust valve. The combustion chambers are of a horizontal structure, the cam shafts are arranged in the middle of the combustion chambers on the two sides, and the peach-shaped structures of the cam shafts can eject the air valves in the combustion chambers on the two sides, so that the arrangement of the cam shafts is reduced, the size of the engine is further reduced, and the size of the engine can meet the space requirement of a hybrid vehicle type.
Description
Technical Field
The invention belongs to the technical field of engine valves, and particularly relates to a valve driving structure of an engine and a using method thereof.
Background
The valve driving structure of the existing engine usually depends on the rotation motion of a camshaft, and a peach-shaped structure on the camshaft is utilized to push out a valve downwards, so that the air flow in an air passage can pass through. In general, the camshaft depends on rotary motion, and the peach-shaped structure only ejects the valve in the combustion chamber on one side, so that the engine is large in size and low in working efficiency.
Due to the tight cabin space of hybrid vehicle models, the size of the hybrid engine is required to be significantly smaller than that of the conventional engine. If the existing engine is adopted, the valve in the combustion chamber on one side is only ejected out by the peach-shaped structure of one camshaft, and the size of the engine can not meet the space requirement of a hybrid vehicle model;
in addition, the conventional valve driving structure has reciprocating inertia force and unstable operation.
Disclosure of Invention
The invention aims to provide a valve driving structure of an engine and a using method thereof, wherein a combustion chamber of the structure adopts a structure which is arranged in a leaning manner, a camshaft is arranged in the middle of the combustion chambers at two sides, and a peach-shaped structure of the camshaft can eject valves in the combustion chambers at two sides, so that the arrangement of the camshaft is reduced, the volume of the engine is further reduced, and the volume of the engine can meet the space requirement of a hybrid vehicle type; the using method has no reciprocating inertia force, so that the engine runs stably.
The technical scheme adopted by the invention is as follows:
a valve driving structure of an engine comprises an engine body, wherein 2 combustion chambers and cam shafts are arranged in the engine body, and are respectively positioned on two sides of the engine body; the camshaft comprises an air inlet camshaft and an air outlet camshaft and is positioned between the two side combustion chambers; the two sides of the air inlet cam shaft are respectively provided with a tappet, and the top end of each tappet is provided with an air inlet valve; the peach-shaped structure of the air inlet cam shaft drives the tappet to move, so that the air inlet valve is opened and closed; the two sides of the exhaust camshaft are respectively provided with a tappet, and the top end of each tappet is provided with an exhaust valve; the peach-shaped structure of the exhaust camshaft drives the tappet to move, so that the exhaust valve is opened and closed.
According to the scheme, the tappet is provided with the spring, one end of the spring is connected with the tappet, the other end of the spring is connected with the air inlet valve or the exhaust valve, and the air inlet valve and the exhaust valve are closed periodically by the counter-acting force of the spring.
According to the scheme, the combustion chamber is internally provided with the piston so as to conveniently control the combustion volume of the combustion chamber, thereby controlling the power of the engine.
According to the scheme, the upper dead point and the lower dead point of the piston are controlled through the air pressure or the electromagnetic force of compressed air so as to conveniently control the volume of the combustion chamber.
According to the scheme, the rotation directions of the intake camshaft and the exhaust camshaft are the same or opposite, and the rotation angular velocities are the same.
The invention also provides a use method of the valve driving structure of the engine, which comprises the following steps:
when the air inlet camshaft and the air outlet camshaft rotate to the position A, the left combustion chamber is far away from the air valve through the opening of the air inlet valve, the closing of the air outlet valve and the piston, so that the air inlet stroke is realized; meanwhile, the right combustion chamber is far away from the air valve through the air inlet valve, the air outlet valve and the piston, so that the acting stroke is realized;
when the air inlet and outlet cam shaft rotates to the position B, the left combustion chamber is close to the air valve through the air inlet valve, the air outlet valve and the piston, so that the compression stroke is realized; meanwhile, the right combustion chamber is closed through an air inlet valve, is opened through an exhaust valve, and is close to an air valve through a piston, so that an exhaust stroke is realized;
when the air inlet camshaft and the air outlet camshaft rotate to the position C, the left combustion chamber is far away from the air valve through the air inlet valve, the air outlet valve and the piston, so that the acting stroke is realized; meanwhile, the right combustion chamber is far away from the air valve through the opening and closing of the air inlet valve and the opening and closing of the exhaust valve, so that the air inlet stroke is realized;
when the air inlet camshaft and the air outlet camshaft rotate to the position D, the left combustion chamber is close to the air valve through the air inlet valve switch, the air outlet valve switch and the piston, so that the air outlet stroke is realized; meanwhile, the right combustion chamber is closed through an air inlet valve, an air exhaust valve and a piston close to an air valve, so that the compression stroke is realized.
The invention has the beneficial effects that:
compared with the existing oppositely-arranged engine, the number of the cam shafts is reduced by half, and the working efficiency of the engine is doubled;
the intake camshaft and the exhaust camshaft are arranged between the combustion chambers on the two sides, so that one camshaft can open two valves, thereby reducing the volume of the engine;
the reciprocating inertia force is not generated, so that the engine runs stably;
on the premise that the piston moves along the opposite direction, the problem that the opening or closing time of the intake valve and the exhaust valve is short in the four processes of air intake, compression, work application and exhaust of the combustion chambers on the two sides is solved;
simple structure and convenient realization.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural view of a valve actuation structure of an engine of the present invention;
FIG. 2 is a schematic view of the intake and exhaust camshafts rotated to position A;
FIG. 3 is a schematic view of the intake and exhaust camshafts rotated to position B;
FIG. 4 is a schematic view of the intake and exhaust camshafts rotated to position C;
FIG. 5 is a schematic view of the intake and exhaust camshafts rotated to position D;
in the figure: 1. the engine body, 2, the camshaft admits air, 2.1, the peach point admits air, 3, the exhaust camshaft, 3.1, the peach point of exhaust, 4, the tappet, 5, the (air) intake valve, 5.1, the left side (air) intake valve, 5.2, the right side (air) intake valve, 6, the exhaust valve, 6.1, the left side exhaust valve, 6.2, the right side exhaust valve, 7, the piston, 7.1, the left side piston, 7.2, the right side piston, 8, the spring, 1.1, the left side intake duct, 1.2, the right side intake duct, 1.3, the left side exhaust duct, 1.4, the right side exhaust duct, 1.5, the left side combustion chamber, 1.6, the right.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a valve driving structure of an engine includes an engine body 1, and a left combustion chamber 1.5, a right combustion chamber 1.6, an intake camshaft 2, an exhaust camshaft 3, a left intake duct 1.1, a right intake duct 1.2, a left exhaust duct 1.3, and a right exhaust duct 1.4 are provided in the engine body 1. The left side combustion chamber 1.5 and the right side combustion chamber 1.6 are in a horizontal structure and are respectively positioned at two sides of the engine body 1. The intake camshaft 2 and the exhaust camshaft 3 are located in the middle of the left combustion chamber 1.5 and the right combustion chamber 1.6. Be equipped with tappet 4 respectively in the both sides of intake camshaft 2, the top of this tappet 4 all is equipped with (air) intake valve 5, and (air) intake valve 5 is used for switching on and closing of left side intake duct 1.1, right side intake duct 1.2. The peach-shaped structure of the air inlet camshaft 2 drives the tappet 4 to move, so that the 2 air inlet valves 5 are opened and closed. Tappets 4 are respectively arranged on two sides of the exhaust camshaft 3, an exhaust valve 6 is arranged at the top end of each tappet 4, and the exhaust valves 6 are used for conducting and closing the left exhaust passage 1.3 and the right exhaust passage 1.4. The peach-shaped structure of the exhaust camshaft 3 drives the tappet 4 to move, so that the exhaust valve 6 is opened and closed.
In this embodiment, the intake camshaft 2 and the exhaust camshaft 3 rotate, the tappet 4 can be ejected out by the peach-shaped structure, and the intake valve 5 and the exhaust valve 6 in the combustion chambers on both sides of the tappet 4 are ejected out.
In the preferred embodiment, each tappet 4 is provided with a spring 8, one end of the spring 8 is connected with the tappet 4, the other end of the spring 8 is connected with the intake valve 5 or the exhaust valve 6, and the reaction force of the spring 8 periodically enables the intake valve 5 and the exhaust valve 6 to be closed during the peach rotation of the intake camshaft 3 and the exhaust camshaft 4.
In the preferred embodiment, in order to control the combustion volume of the combustion chamber, a piston 7 is arranged in the left combustion chamber 1.5 and the right combustion chamber 1.6, and the top dead center and the bottom dead center of the piston 7 are controlled by the air pressure of compressed air, electromagnetic force control or other mechanical parts.
The rotation direction of the intake camshaft 2 and the rotation direction of the exhaust camshaft 3 may be the same or opposite, but the rotational angular velocities are the same.
The invention also provides a use method of the valve driving structure of the engine, which comprises the following steps:
taking the same rotation direction of the intake camshaft 2 and the exhaust camshaft 3 as an example:
in the left and right combustion chambers 1.5, 1.6, the two pistons 7.1, 7.2 reciprocate in opposite directions;
in the two combustion chambers 1.5, 1.6, the four-stroke working principle is adopted, which comprises: four strokes of air intake, compression, work application and exhaust;
when the intake camshaft 2 and the exhaust camshaft 3 rotate to the position a (the intake lobe of the intake camshaft rotates to the upper left side, and the exhaust lobe of the exhaust camshaft rotates to the lower side), the left valve timing is as follows: the left tappet 4 is jacked up by an air inlet peach tip 2.1 of the air inlet camshaft 2, the left air inlet valve 5.1 is jacked up by the tappet 4 along the same trend, and the left air inlet channel 1.1 is opened; meanwhile, the exhaust peach-shaped 3.1 of the exhaust camshaft 3 cannot jack the left tappet 4, so that the left exhaust valve 6.1 is not jacked up, and the left exhaust passage 1.3 is in a closed state; meanwhile, the left piston 7.1 moves away from the valve; thus, the left combustion chamber 1.5 realizes the intake stroke through opening a left intake valve 5.1, closing a left exhaust valve 6.1 and keeping a left piston 7.1 away from the valve;
meanwhile, when the intake camshaft 2 and the exhaust camshaft 3 rotate to the position a (the intake lobe of the intake camshaft rotates to the upper left side, and the exhaust lobe of the exhaust camshaft rotates to the lower side), the gas distribution phase on the right side is as follows: the right tappet 4 is not jacked up by the air inlet peach tip 2.1 of the air inlet camshaft 2, the right inlet valve 5.2 is not jacked up, and the right air inlet channel 1.2 is in a closed state; meanwhile, the exhaust peach point 3.1 of the exhaust camshaft 3 does not jack the right tappet 4, the right exhaust valve 6.2 is not jacked, and the right exhaust passage 1.4 is in a closed state; meanwhile, oil injection and ignition are carried out in the right combustion chamber 1.6, so that the mixed gas is combusted, and the right piston 7.2 is pushed to move in the direction far away from the air valve (the moving direction is opposite to that of the left piston 7.1); thus, the right combustion chamber 1.6 realizes the acting stroke through 'the right inlet valve 5.2 is closed, the right exhaust valve 6.2 is closed, and the right piston 7.2 is far away from the valve';
when the intake camshaft 2 and the exhaust camshaft 3 rotate to the position B (the intake lobe of the intake camshaft rotates to the lower left side, and the exhaust lobe of the exhaust camshaft rotates to the right side), the left valve timing is as follows: the left tappet 4 is not jacked up by the air inlet peach tip 2.1 of the air inlet camshaft 2, the left air inlet valve 5.1 is not jacked up, and the left air inlet channel 1.1 is in a closed state; meanwhile, the exhaust peach point 3.1 of the exhaust camshaft 3 does not jack the left tappet 4, so that the left exhaust valve 6.1 is not jacked, and the left exhaust passage 1.3 is in a closed state; meanwhile, the left piston 7.1 moves towards the direction close to the valve; thus, the left combustion chamber 1.5 realizes the compression stroke through the 'left inlet valve 5.1 closed, the left exhaust valve 6.1 closed and the left piston 7.1 close to the valve';
meanwhile, when the intake camshaft 2 and the exhaust camshaft 3 rotate to the position B (the intake lobe of the intake camshaft rotates to the lower left side, and the exhaust lobe of the exhaust camshaft rotates to the right side), the gas distribution phase on the right side is as follows: the right tappet 4 is not jacked up by the air inlet peach tip 2.1 of the air inlet camshaft 2, the right inlet valve 5.2 is not jacked up, and the right air inlet channel 1.2 is in a closed state; meanwhile, an exhaust peach tip 3.1 of the exhaust camshaft 3 jacks the right tappet 4, a right exhaust valve 5.2 is jacked, and a right exhaust passage 1.4 is in an open state; at the same time, the right piston 7.2 moves towards the direction close to the valve (opposite to the movement direction of the left piston 7.1); thus, the right combustion chamber 1.6 realizes the exhaust stroke through the closing of a right intake valve 5.2, the opening of a right exhaust valve 6.2 and the approach of a right piston 7.2 to the valve;
when the intake camshaft 2 and the exhaust camshaft 3 rotate to the position C (the intake lobe of the intake camshaft rotates to the right side, and the exhaust lobe of the exhaust camshaft rotates to the upper side), the left valve timing is: the left tappet 4 is not jacked up by the air inlet peach tip 2.1 of the air inlet camshaft 2, the left air inlet valve 5.1 is not jacked up, and the left air inlet channel 1.1 is in a closed state; meanwhile, the exhaust peach point 3.1 of the exhaust camshaft 3 does not jack the left tappet 4, the left exhaust valve 6.1 is not jacked, and the left exhaust passage 1.3 is in a closed state; meanwhile, oil injection and ignition are carried out in the left side combustion chamber 1.5, so that the mixed gas is combusted, and the left side piston 7.1 is pushed to move in the direction far away from the air valve. Thus, the left combustion chamber 1.5 realizes the acting stroke through ' 5.1 closing of a left inlet valve, 6.1 closing of a left exhaust valve and 7.1 far away from the valve ' of a left piston ';
meanwhile, when the intake camshaft 2 and the exhaust camshaft 3 rotate to the position C (the intake lobe of the intake camshaft rotates to the right side, and the exhaust lobe of the exhaust camshaft rotates to the upper side), the valve timing on the right side is as follows: the right tappet 4 is jacked up by an air inlet peach tip 2.1 of the air inlet camshaft 2, the right inlet valve 5.2 is jacked up, and the right air inlet channel 1.2 is in an open state; meanwhile, the right tappet 4 is not jacked up by the exhaust peach point 3.1 of the exhaust camshaft 3, the right exhaust valve 6.2 is not jacked up, and the right exhaust passage 1.4 is in a closed state; at the same time, the right piston 7.2 moves away from the valve (opposite to the left piston 7.1); thus, the right combustion chamber 1.6 realizes the intake stroke through opening the right intake valve 5.2, closing the right exhaust valve 6.2 and keeping the right piston 7.2 away from the valve;
when the intake camshaft 2 and the exhaust camshaft 3 rotate to the position D (the intake lobe of the intake camshaft rotates to the upper side, and the exhaust lobe of the exhaust camshaft rotates to the left side), the valve timing for the left side is: the left tappet 4 is not jacked up by the air inlet peach tip 2.1 of the air inlet camshaft 2, the left air inlet valve 5.1 is not jacked up, and the left air inlet channel 1.1 is in a closed state; meanwhile, an exhaust peach tip 3.1 of the exhaust camshaft 3 jacks the left tappet 4, a left exhaust valve 6.1 is jacked, and a left exhaust passage 1.3 is in an open state; meanwhile, the left piston 7.1 moves towards the direction close to the valve; thus, the left combustion chamber 1.5 realizes the exhaust stroke through the closing of a left intake valve 5.1, the opening of a left exhaust valve 6.1 and the approach of a left piston 7.1 to the valve;
meanwhile, when the intake camshaft 2 and the exhaust camshaft 3 rotate to the position D (the intake lobe of the intake camshaft rotates to the upper side, and the exhaust lobe of the exhaust camshaft rotates to the left side), the valve timing on the right side is as follows: the right tappet 4 is not jacked up by the air inlet peach tip 2.1 of the air inlet camshaft 2, the right inlet valve 5.2 is not jacked up, and the right air inlet channel 1.2 is in a closed state; meanwhile, the right tappet 4 is not jacked up by the exhaust peach point 3.1 of the exhaust camshaft 3, the right exhaust valve 5.2 is not jacked up, and the right exhaust passage 1.4 is in a closed state; meanwhile, the right piston 7.2 moves towards the direction close to the valve (the direction is opposite to the moving direction of the left piston 7.1); thus, the right combustion chamber 1.6 realizes the compression stroke through the closing of the right inlet valve 5.2, the closing of the right exhaust valve 6.2 and the closing of the right piston 7.2 close to the valve.
Then, in a cycle, the intake camshaft 2 and the exhaust camshaft 3 start A, B, C, D four-angle circulation again, and the circulation reciprocating working process of the two-side combustion chambers is completed.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a valve drive structure of engine, includes the engine body, this internal combustion chamber, camshaft that are equipped with of engine, its characterized in that: 2 combustion chambers are respectively positioned on two sides of the engine body; the camshaft comprises an air inlet camshaft and an air outlet camshaft and is positioned between the two side combustion chambers; the two sides of the air inlet cam shaft are respectively provided with a tappet, and the top end of each tappet is provided with an air inlet valve; the peach-shaped structure of the air inlet cam shaft drives the tappet to move, so that the air inlet valve is opened and closed; the two sides of the exhaust camshaft are respectively provided with a tappet, and the top end of each tappet is provided with an exhaust valve; the peach-shaped structure of the exhaust camshaft drives the tappet to move, so that the exhaust valve is opened and closed.
2. A valve drive structure of an engine according to claim 1, characterized in that: the tappet is provided with a spring, one end of the spring is connected with the tappet, the other end of the spring is connected with the air inlet valve or the exhaust valve, and the counter-acting force of the spring enables the air inlet valve and the exhaust valve to be closed periodically.
3. A valve drive structure of an engine according to claim 1, characterized in that: and a piston is arranged in the combustion chamber.
4. A valve drive structure of an engine according to claim 3, characterized in that: the top dead center and the bottom dead center of the piston are controlled by the air pressure of the compressed air or the electromagnetic force.
5. A valve drive structure of an engine according to claim 1, characterized in that: the rotation directions of the intake camshaft and the exhaust camshaft are the same or opposite, and the rotation angular velocities are the same.
6. Use of the valve-driving structure of the engine according to any one of claims 1 to 5, characterized in that:
when the air inlet camshaft and the air outlet camshaft rotate to the position A, the left combustion chamber is far away from the air valve through the opening of the air inlet valve, the closing of the air outlet valve and the piston, so that the air inlet stroke is realized; meanwhile, the right combustion chamber is far away from the air valve through the air inlet valve, the air outlet valve and the piston, so that the acting stroke is realized;
when the air inlet and outlet cam shaft rotates to the position B, the left combustion chamber is close to the air valve through the air inlet valve, the air outlet valve and the piston, so that the compression stroke is realized; meanwhile, the right combustion chamber is closed through an air inlet valve, is opened through an exhaust valve, and is close to an air valve through a piston, so that an exhaust stroke is realized;
when the air inlet camshaft and the air outlet camshaft rotate to the position C, the left combustion chamber is far away from the air valve through the air inlet valve, the air outlet valve and the piston, so that the acting stroke is realized; meanwhile, the right combustion chamber is far away from the air valve through the opening and closing of the air inlet valve and the opening and closing of the exhaust valve, so that the air inlet stroke is realized;
when the air inlet camshaft and the air outlet camshaft rotate to the position D, the left combustion chamber is close to the air valve through the air inlet valve switch, the air outlet valve switch and the piston, so that the air outlet stroke is realized; meanwhile, the right combustion chamber is closed through an air inlet valve, an air exhaust valve and a piston close to an air valve, so that the compression stroke is realized.
7. Use according to claim 6, characterized in that: the position A is that the air inlet peach point of the air inlet camshaft rotates to the upper left side, and the air outlet peach point of the air outlet camshaft rotates to the lower side;
the position B is that the air inlet peach point of the air inlet camshaft rotates to the left lower side, and the air outlet peach point of the air outlet camshaft rotates to the right side;
the position C is that the air inlet peach point of the air inlet camshaft rotates to the right side, and the air outlet peach point of the air outlet camshaft rotates to the upper side;
and the position D is that the air inlet peach point of the air inlet camshaft rotates to the upper side, and the air outlet peach point of the air outlet camshaft rotates to the left side.
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| CN202011000072.8A CN112112733A (en) | 2020-09-22 | 2020-09-22 | Valve driving structure of engine and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324680A (en) * | 2022-09-20 | 2022-11-11 | 湖南敏行汽车科技有限公司 | Novel horizontal opposed engine valve mechanism |
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