Internal combustion engine valve, internal combustion engine timing system and internal combustion engine

Abstract

The invention discloses an internal combustion engine valve, an internal combustion engine timing system and an internal combustion engine, and relates to the technical field of internal combustion engines, the internal combustion engine valve comprises an air channel, a valve cover plate, a connecting piece and a reset piece, and the air channel is fixed to the internal combustion engine; the air valve cover plate is arranged in the air channel, the section of the air valve cover plate is matched with the cross section in the air channel, and the air channel can be closed when the air valve cover plate is perpendicular to the axis of the air channel; the connecting piece is connected with the air valve cover plate, the connecting piece is externally connected with a driving device, and the driving device can drive the connecting piece to rotate so as to control the air valve cover plate to synchronously rotate to be parallel to the axis of the air channel; the reset piece is arranged on the air channel and used for driving the valve cover plate to reset to the state perpendicular to the axis of the air channel. According to the internal combustion engine valve, the internal combustion engine timing system and the internal combustion engine, the influence on the circulation sectional area of the air channel is small, and air exchange of the internal combustion engine is better facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field related to internal combustion engines, and in particular to an internal combustion engine valve, an internal combustion engine timing system and an internal combustion engine. Background Art

[0002] The valves of an internal combustion engine are components of the valve train. A typical valve train includes a cam, which is connected to the engine crankshaft. When the engine rotates, the cam rotates. When the cam rotates, it pushes up the push rod, which pushes up the left rocker arm. The right rocker arm will press down on the valve spring seat, and the valve will sink. At this time, the valve and the valve seat will separate, and the airway will open. The valve structure of a traditional internal combustion engine is mostly a push rod type. The shape of the valve head includes flat top, spherical top and trumpet top. When this valve structure is opened, the valve head will block the flow of gas, resulting in greater intake and exhaust resistance, which is not conducive to the ventilation of the internal combustion engine. Therefore, it is urgent to design a technical solution that has less impact on the flow cross-sectional area of the airway and is more conducive to the ventilation of the internal combustion engine. Summary of the Invention

[0003] The purpose of the present invention is to provide an internal combustion engine valve, an internal combustion engine timing system and an internal combustion engine to solve the problems existing in the above-mentioned prior art, with less impact on the flow cross-sectional area of the airway and more conducive to the ventilation of the internal combustion engine.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides an internal combustion engine valve, comprising:

[0006] Air duct, fixed to the internal combustion engine;

[0007] a valve cover plate disposed in the airway, wherein the cross section of the valve cover plate matches the cross section in the airway, and the valve cover plate can close the airway when it is perpendicular to the axis of the airway;

[0008] a connecting member connected to the valve cover plate, the connecting member being externally connected to a driving device, the driving device being capable of driving the connecting member to rotate, thereby controlling the valve cover plate to synchronously rotate until it is parallel to the axis of the airway; and

[0009] A reset member is provided on the airway and is used for driving the valve cover to reset to a state perpendicular to the airway axis.

[0010] Preferably, the connecting member is a valve cover shaft, the valve cover is fixedly connected to the valve cover shaft, both ends of the valve cover shaft are rotatably connected to the side wall of the airway, and one end of the valve cover shaft passes through the side wall of the airway and is connected to the driving device, and the driving device can drive the valve cover shaft to overcome the resistance of the reset member and rotate; one end of the reset member is connected to the outer side wall of the airway, and the other end is connected to the valve cover shaft, and the reset member can drive the valve cover shaft to rotate and maintain it until the valve cover is perpendicular to the airway axis.

[0011] Preferably, the reset member is a reset spring, which is sleeved on one end of the valve cover shaft, and one end of the reset spring is fixedly connected to the outer wall of the airway, and the other end is fixedly connected to the valve cover shaft.

[0012] Preferably, the upper and lower parts of the inner wall of the air duct are provided with an extension bulge, the end of the valve cover plate away from the valve cover plate axis is provided with a first inclined surface, and the other end of the valve cover plate away from the valve cover plate axis is provided with a second inclined surface, and the first inclined surface and the second inclined surface are respectively located on both sides of the valve cover plate; when the valve cover plate is perpendicular to the air duct axis, the first inclined surface abuts against the outer cone angle of the extension bulge located at the upper part of the inner wall of the air duct, and the second inclined surface abuts against the inner cone angle of the extension bulge located at the lower part of the inner wall of the air duct.

[0013] The present invention further provides an internal combustion engine timing system for controlling the opening moment, closing moment, opening time, and opening cross-sectional area of the valve of the internal combustion engine as described above; comprising:

[0014] A shift lever, wherein a strip-shaped sliding groove is formed on the end surface of the shift lever, one end of the shift lever is movably connected to the end of the connecting member of the internal combustion engine valve, and can be rotated around the axis of the connecting member to a set angle and then abut against the connecting member, thereby driving the connecting member to rotate, and the shift lever is arranged perpendicular to the connecting member;

[0015] A tappet is arranged perpendicular to the connecting member, a slider is fixedly provided on a side wall of one end of the tappet, the slider is slidably connected to the sliding groove, and the other end of the tappet is connected to a driving device; the driving device is capable of driving the tappet to reciprocate along the axis of the tappet; and

[0016] The swing assembly is connected to the tappet and can drive the tappet to swing, thereby adjusting the initial angle between the tappet and the shifting rod.

[0017] Preferably, a slot is provided at one end of the connecting member, and a notch parallel to the axis of the connecting member is provided on one side of the slot; a connecting block arranged perpendicular to the driving rod is fixedly provided on the side wall of one end of the driving rod, and the connecting block is rotatably set in the slot, and a limit block is fixed on the side wall of the connecting block, and the limit block is located at the position of the notch, and after the driving rod drives the connecting block to rotate around the slot by a set angle from the initial position, the limit block abuts against the side wall of the notch.

[0018] Preferably, it also includes a shift rod spring, which is sleeved on the connecting block, and one end of the shift rod spring is fixedly connected to the connecting block, and the other end is fixedly connected to the inner wall of the slot hole. The shift rod spring can drive the connecting block to drive the shift rod to rotate in the opposite direction to a set angle and maintain it at the initial position.

[0019] Preferably, the swing assembly includes a push rod sleeve, the push rod sleeve is slidably mounted on the push rod, a sleeve pin is fixedly provided on the side wall of the push rod sleeve away from the shift rod, and the sleeve pin is rotationally connected to the internal combustion engine; a push rod is connected to the side wall of the push rod sleeve close to the shift rod, and the push rod is used to push the push rod sleeve to swing around the sleeve pin; a push rod sleeve reset device is connected to the side of the push rod sleeve away from the push rod, and the push rod sleeve reset device can drive the push rod sleeve to swing in the opposite direction to the initial position.

[0020] Preferably, the driving device includes a cam, a side wall of the cam abuts against an end of the tappet away from the shift rod, a camshaft of the cam is transmission-connected to an output shaft of the engine via a crankshaft, and the engine can drive the cam to rotate.

[0021] The present invention also provides an internal combustion engine, comprising:

[0022] An internal combustion engine body is provided with the internal combustion engine valve and the internal combustion engine timing system as described above.

[0023] Compared with the prior art, the present invention has achieved the following technical effects:

[0024] The valve of the present invention has a flip structure. When the valve is opened, the valve cover rotates a certain angle in the airway. After it is fully opened, the valve cover flips 90°. At this time, the valve cover is perpendicular to the flow cross-section of the airway, that is, the valve cover is parallel to the axis of the airway. Therefore, the valve cover is parallel to the gas flow direction in the airway, ensuring that the flow cross-sectional area of the airway and the flow direction of the gas are not affected, the ventilation resistance is small, the ventilation efficiency is high, and it is more conducive to the ventilation of the internal combustion engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of an internal combustion engine timing system in one or some embodiments of the present invention;

[0027] Figure 2 A schematic diagram of the arrangement position of the shift lever spring in one or some embodiments of the present invention;

[0028] Figure 3 A schematic diagram of the valve structure of an internal combustion engine in one or some embodiments of the present invention;

[0029] Figure 4 for Figure 3 AA cross-sectional diagram;

[0030] Figure 5 Schematic diagram of the matching structure between the shift lever and the valve cover shaft in one or some embodiments of the present invention;

[0031] Figure 6 A schematic diagram of the tappet swing angle and the shift lever rotation angle in one or some embodiments of the present invention;

[0032] Figure 7 Schematic diagram of the opening angle of the valve cover in one or some embodiments of the present invention.

[0033] In the figure: 1-valve cover, 2-valve cover shaft, 3-air channel, 4-return spring, 5-shift rod, 6-tappet, 7-tappet sleeve, 8-camshaft, 9-push rod, 10-sleeve spring, 11-sleeve spring seat, 12-sleeve pin, 13-shift rod spring, 14-slot, 1401-cut, 15-connecting block, 1501-limiting block, 16-extension cam, 17-first inclined surface, 18-second inclined surface. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] The purpose of the present invention is to provide an internal combustion engine valve, an internal combustion engine timing system and an internal combustion engine to solve the problems existing in the above-mentioned prior art, with less impact on the flow cross-sectional area of the airway and more conducive to the ventilation of the internal combustion engine.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] The valve structure of traditional internal combustion engines is mostly of the push rod type. The shapes of the valve heads include flat top, spherical top and trumpet top. When this valve structure is opened, the valve head will block the gas flow, causing greater intake and exhaust resistance, which is not conducive to the ventilation of the internal combustion engine. In order to solve this problem, reference is made to Figure 1 、 Figure 3 、 Figure 4 and Figure 7 As shown, the first purpose of the present invention is to provide an internal combustion engine valve, including an air duct 3, a connecting part, a reset part and a valve cover plate 1, the air duct 3 is fixed on the internal combustion engine, the air duct 3 is a cylindrical structure, and its internal channel forms a gas channel of the valve; the valve cover plate 1 is arranged in the air duct 3, the cross section of the valve cover plate 1 matches the cross section in the air duct 3, and the valve cover plate 1 can close the air duct 3 when it is perpendicular to the axis of the air duct 3; the function of the valve cover plate 1 is to cooperate with the air duct 3 to control the opening or closing of the gas channel, and when the valve cover plate 1 is flipped 90°, the air duct 3 is fully opened, and the valve cover plate 1 can be circular or other shapes that match the air duct 3. The connecting piece is connected to the valve cover plate 1, and the connecting piece is externally connected to a driving device. The driving device can drive the connecting piece to rotate, and then control the valve cover plate 1 to rotate synchronously to be parallel to the axis of the airway 3; the connecting piece of this embodiment adopts a valve cover plate shaft 2, and both ends of the valve cover plate shaft 2 are rotatably connected to the side walls of the airway 3, and one end of the valve cover plate shaft 2 passes through the side wall of the airway 3 and is connected to the driving device. The driving device can drive the valve cover plate shaft 2 to overcome the resistance of the reset part and rotate; mounting grooves are provided on the two opposite side walls in the middle of the valve cover plate shaft 2, and a valve support plate is fixedly inserted in each mounting groove. The two valve support plates form a complete valve cover plate 1, and the valve cover plate shaft 2 can rotate to control the opening angle of the valve cover plate 1; in other embodiments, the valve cover plate 1 can adopt an integrated structure, and a mounting through hole is provided on the valve cover plate shaft 2, and the valve cover plate 1 is fixedly inserted in the mounting through hole to achieve a fixed connection with the valve cover plate shaft 2. The reset member is arranged on the air duct 3 and is used to drive the valve cover plate 1 to reset to a state perpendicular to the axis of the air duct 3. The reset member of this embodiment adopts a reset spring 4, which is sleeved on one end of the valve cover plate shaft 2, and one end of the reset spring 4 is connected to the outer wall of the air duct 3, and the other end is connected to the valve cover plate shaft 2. Its function is to use the spring force to put the valve cover plate 1 in a closed position, and to make the valve cover plate 1 tightly closed with the air duct 3 when the internal combustion engine is working, thereby ensuring the sealing of the air duct 3.

[0038] The valve of the present invention has a flip structure. When the valve is opened, the valve cover plate 1 rotates a certain angle in the air duct 3. After it is fully opened, the valve cover plate 1 flips 90°. At this time, the valve cover plate 1 is perpendicular to the gas flow cross-section of the air duct 3 and parallel to the gas flow direction in the air duct 3, ensuring that the flow cross-sectional area of the air duct 3 and the gas flow direction are not affected, the ventilation resistance is small, the ventilation efficiency is high, and it is more conducive to the ventilation of the internal combustion engine.

[0039] The sealing structure between the valve cover plate 1 and the air duct 3 in this embodiment employs a cone-shaped seal. Extended protrusions 16 are provided on both the upper and lower portions of the inner sidewall of the air duct 3, each with a tapered angle. A first inclined surface 17 is provided on the end of the valve cover plate 1 away from the valve cover plate axis 2, and a second inclined surface 18 is provided on the other end of the valve cover plate 1 away from the valve cover plate axis 2. The first inclined surface 17 and the second inclined surface 18 are located on either side of the valve cover plate 1. When the valve cover plate 1 is perpendicular to the axis of the air duct 3, the first inclined surface 17 abuts the outer tapered angle of the extended protrusion 16 located on the upper inner sidewall of the air duct 3, while the second inclined surface 18 abuts the inner tapered angle of the extended protrusion 16 located on the lower inner sidewall of the air duct 3. The cone angle is the angle of the valve sealing surface and is typically set at 45°, though some valves are set at 30°. A valve with a 30° cone angle provides a larger end surface for the same opening angle, thereby reducing intake resistance. However, it should be noted that the edge of the valve head with a small taper is thinner, the rigidity is smaller, and the sealing and thermal conductivity are relatively poor. Therefore, this design is mainly suitable for intake valves; the length of the cone angle in this embodiment, that is, the bandwidth design of the sealing surface is related to the cylinder sealing performance requirements of the internal combustion engine, and is usually designed to be 3 to 5 mm and confirmed by experiments.

[0040] In the prior art, the variable valve timing system of an internal combustion engine consists of an oil control solenoid valve and a variable camshaft phase adjuster (VCT). By adjusting the engine cam phase, the intake air volume can be changed with changes in engine speed, thereby achieving optimal combustion efficiency and improving fuel economy. However, this variable timing system has a complex structure, high cost, high failure rate, and cannot change the length of the valve opening time. In order to solve this problem, the second purpose of the present invention is to provide an internal combustion engine timing system for controlling the opening time, closing time, opening time and opening cross-sectional area of the valves of the internal combustion engine as described above; Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 and Figure 7As shown, the device comprises a lever 5, a tappet 6, and a swing assembly. A strip-shaped sliding groove is defined on the end surface of the lever 5. One end of the lever 5 is movably connected to the end of the connecting member of the internal combustion engine valve, as described above. The lever 5 can rotate about the axis of the connecting member to a set angle, abutting against the connecting member and driving the connecting member to rotate. The lever 5 is arranged perpendicular to the connecting member. The tappet 6 is arranged perpendicular to the connecting member. A slider is fixed to the sidewall of one end of the tappet 6, which slides within the sliding groove. The other end of the tappet 6 is connected to a drive device capable of driving the tappet 6 to reciprocate along its axis. The lever 5 engages with the tappet 6 through the sliding groove. When the tappet 6 is pushed upward, it rotates the lever 5 to a certain angle. At this point, the lever 5 overcomes the spring force of the return spring 4, rotating the valve cover shaft 2 and the valve cover 1, thereby controlling the opening of the airway 3. The swing assembly is connected to the tappet 6, driving the tappet 6 to swing, thereby adjusting the initial angle between the tappet 6 and the lever 5, thereby controlling the motion trajectory and position of the tappet 6.

[0041] In this embodiment, the connecting member, namely the valve cover shaft 2, has a slot 14 formed at one end. A notch 1401 parallel to the connecting member's axis is formed on one side of the slot 14. A connecting block 15, arranged perpendicular to the lever 5, is fixedly mounted on the sidewall of the deflector 5. The connecting block 15 is rotatably mounted within the slot 14. A stopper 1501 is fixedly mounted on the sidewall of the connecting block 15. Stopper 1501 is located at the location of notch 1401. After the deflector 5 rotates the connecting block 15 about the slot 14 by a set angle from its initial position, stopper 1501 abuts the sidewall of notch 1401. A deflector spring 13 is sleeved on the connecting block 15. One end of the deflector spring 13 is fixedly connected to the connecting block 15, and the other end is fixedly connected to the inner wall of the slot 14. The deflector spring 13 can drive the connecting block 15 to rotate the lever 5 in the opposite direction by a set angle and maintain it in its initial position. In other words, the function of the deflector spring 13 is to push the lever 5 back to its original position when the tappet 6 descends.

[0042] In one embodiment, the swing assembly includes a tappet sleeve 7, which slides over the tappet 6. A sleeve pin 12 is fixed to the sidewall of the tappet sleeve 7 facing away from the deflector 5 and is rotatably connected to the internal combustion engine. A push rod 9 is connected to the sidewall of the tappet sleeve 7 near the deflector 5, which is used to propel the tappet sleeve 7 about the sleeve pin 12. A reset device is connected to the side of the tappet sleeve 7 facing away from the push rod 9, which can drive the tappet sleeve 7 to swing back to its initial position. When the push rod 9 pushes the upper portion of the tappet sleeve 7, the sleeve overcomes the spring force on the other side and rotates around the pin hole where the sleeve pin 12 is located, thereby causing the tappet 6 to rotate left and right by a certain angle. The push rod 9 functions to propel the tappet sleeve 7 left and right. Common configurations for the push rod 9 include hydraulic and electronic control. The hydraulic push rod is connected to the internal combustion engine's lubricating oil channel. When the engine speed increases and the lubricating oil pressure rises, the push rod shaft on the push rod 9 extends. The extended push rod shaft overcomes the spring force on the other side and pushes the push rod sleeve 7 to rotate left and right. The electronically controlled push rod functions similarly to the hydraulic push rod, but is controlled by the internal combustion engine control system, allowing for more precise control of the rotation angle of the push rod sleeve 7. The push rod sleeve 7 reset device in this embodiment uses a sleeve spring 10. One side of the sleeve spring 10 is connected to the push rod sleeve 7, and the other side is connected to the internal combustion engine via a sleeve spring seat 11. The function of the sleeve spring 10 is to reset the push rod 9 when the push rod 9 is reset. The sleeve spring seat 11 is connected to the internal combustion engine to prevent the sleeve spring 10 from falling off during movement.

[0043] In one embodiment, the driving device includes a cam, the side wall of the cam abuts against the end of the tappet 6 away from the shift rod 5; the camshaft 8 is connected to the engine crankshaft, and common transmission methods between the camshaft 8 and the crankshaft include gear transmission, chain transmission and toothed belt transmission. In a four-stroke engine, the rotation speed of the camshaft 8 is half of that of the crankshaft, and in a two-stroke engine, the rotation speed of the camshaft 8 is the same as that of the crankshaft. When the camshaft 8 rotates, it can drive the tappet 6 to move up and down in the tappet sleeve 7.

[0044] A third object of the present invention is to provide an internal combustion engine, comprising: an internal combustion engine body, on which the internal combustion engine valves and the internal combustion engine timing system as described above are provided.

[0045] Example 1

[0046] In this embodiment, the shift lever 5 and the valve cover shaft 2 are capable of relative rotation by a certain angle A. When the shift lever 5 begins to rotate, the shift lever spring 13 is first compressed, at which point the shift lever spring 13 transmits its spring force to the valve cover shaft 2. However, because the valve cover shaft 2 is mounted with a return spring 4, which has a greater spring force than the shift lever spring 13, the spring force of the shift lever spring 13 cannot rotate the valve cover shaft 2. When the shift lever 5 reaches the angle A, the shift lever 5 comes into direct contact with the valve cover shaft 2, causing the shift lever 5 to directly rotate the valve cover shaft 2.

[0047] The tappet 6 and tappet sleeve 7 of this embodiment can rotate left and right by a certain angle B under the action of the push rod 9, and cooperate with the angle A of relative rotation of the shift rod 5 and the valve cover shaft 2 to achieve the purpose of adjusting the valve opening time.

[0048] like Figure 6 As shown, when the push rod 9 is not working, the push rod sleeve 7 and the push rod 6 are in the initial position on the left side under the action of the sleeve spring 10. At this time, the push rod 5 is out of contact with the valve cover shaft 2. As the camshaft 8 rotates, the push rod 6 will reciprocate up and down. The time required for the push rod 6 to move from the bottom dead center to the top dead center and then back to the bottom dead center is recorded as T Q . When the push rod 6 moves, it pushes the lever 5 to rotate. When the push rod 6 rises to a height of L1, the push rod 6 pushes the lever 5 to rotate to an angle of A. The time required for the push rod 6 to rise to L1 is recorded as T1. Only then will the lever 5 drive the valve cover shaft 2 to rotate, and the valve cover 1 will open. As the push rod 6 rises to the top and then falls, when the push rod 6 falls to a height of L1, the lever 5 reaches the angle position A. At this time, the lever 5 is out of contact with the valve cover shaft 2. The valve cover shaft 2 is reset under the action of the return spring 4, and the valve cover 1 is closed. Then the push rod 6 continues to descend to the bottom dead center. The time required to descend from the height of L1 to the bottom dead center position is also T1. Therefore, when the push rod 9 is not working, the opening time of the valve cover 1 is (T Q -2T1).

[0049] When push rod 9 is in operation, it pushes tappet sleeve 7 to rotate a certain angle about the pin hole. Because the upper portion of tappet 6 is connected to deflector lever 5 via a sliding slot, this in turn causes deflector lever 5 to rotate a certain angle. The deflector lever 5 has a rotation limit of angle A, which can be determined by controlling the extension of push rod 9 or other limiting structures. When tappet sleeve 7 rotates to limit angle B, deflector lever 5 reaches limit angle A, at which point deflector lever 5 contacts valve cover shaft 2. When push rod 9 begins to move upward under the action of camshaft 8, deflector lever 5 immediately rotates valve cover shaft 2, causing valve cover 1 to open. When the push rod 9 moves upward to the top dead center, the upward movement distance of the push rod 9 is L2. Through reasonable matching calculation (the calculation method is existing technology and will not be described in detail), the angle difference between the top dead center and the bottom dead center of the push rod 5 is 90°. At this time, the valve cover 1 is fully opened. The opening time of the valve cover 1 is the time T0 when the push rod 6 runs from the bottom dead center to the top dead center and then returns to the bottom dead center.

[0050] Therefore, when the push rod 9 is working, the valve opening time T0 is greater than the opening time (T Q -2T1), the valve opening time when the push rod 9 is working is also earlier than the opening time when the push rod 9 is not working by T1 time, and the valve closing time when the push rod 9 is working is also later than the closing time when the push rod 9 is not working by T1 time.

[0051] The tappet 6 and tappet sleeve 7 of this embodiment can rotate left and right by a certain angle B under the action of the push rod 9, and cooperate with the angle C of relative rotation of the shift rod 5 and the valve cover shaft 2 to achieve the purpose of adjusting the valve opening size.

[0052] When the push rod 9 is not working, the push rod sleeve 7 and the push rod 6 are located at the initial position on the left side under the action of the sleeve spring 10. At this time, the lever 5 is out of contact with the valve cover shaft 2. As the camshaft 8 rotates, the push rod 6 will reciprocate up and down, driving the lever 5 to rotate a certain angle (A+90°+C). When the lever 5 rotates to the (A+90°) position, the valve cover 1 rotates 90°, and the valve is fully open. However, at this time, the push rod 6 has not yet reached the top dead center. As the push rod continues to move upward, the lever 5 will rotate to an angle of C. At this time, the valve cover 1 rotates to the (90°+C) position, as shown below Figure 7 As shown, the cross-sectional area of the air passage 3 at this point is smaller than when the valve cover 1 is rotated 90°, thereby achieving a certain degree of adjustment in the valve opening size. This embodiment achieves variable valve timing by adjusting the valve opening and closing times, the valve opening duration, and the valve opening cross-sectional area. The positions of the shift lever 5, push rod 9, sliding sleeve pin 12, and sliding sleeve spring 10 of this embodiment are adjustable to meet the layout requirements of the internal combustion engine's intake and exhaust passages 3.

[0053] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A valve for an internal combustion engine, characterized in that: include: Air duct, fixed to the internal combustion engine; a valve cover plate disposed in the airway, wherein the cross section of the valve cover plate matches the cross section in the airway, and the valve cover plate can close the airway when it is perpendicular to the axis of the airway; A connecting member connected to the valve cover plate, the connecting member being externally connected to a driving device, the driving device being capable of driving the connecting member to rotate, thereby controlling the valve cover plate to synchronously rotate until it is parallel to the axis of the airway; as well as A reset member is provided on the airway and is used for driving the valve cover to reset to a state perpendicular to the airway axis.

2. The internal combustion engine valve according to claim 1, characterized in that: The connecting part is a valve cover shaft, the valve cover is fixedly connected to the valve cover shaft, both ends of the valve cover shaft are rotatably connected to the side wall of the airway, and one end of the valve cover shaft passes through the side wall of the airway and is connected to the driving device, and the driving device can drive the valve cover shaft to overcome the resistance of the reset part and rotate; one end of the reset part is connected to the outer side wall of the airway, and the other end is connected to the valve cover shaft, and the reset part can drive the valve cover shaft to rotate and maintain it until the valve cover is perpendicular to the airway axis.

3. The internal combustion engine valve according to claim 2, characterized in that: The reset member is a reset spring, which is sleeved on one end of the valve cover shaft. One end of the reset spring is fixedly connected to the outer wall of the air passage, and the other end is fixedly connected to the valve cover shaft.

4. The internal combustion engine valve according to claim 2, characterized in that: The upper and lower parts of the inner wall of the airway are both provided with extension bulges, the end of the valve cover plate away from the valve cover plate axis is provided with a first inclined surface, and the other end of the valve cover plate away from the valve cover plate axis is provided with a second inclined surface, and the first inclined surface and the second inclined surface are respectively located on both sides of the valve cover plate; when the valve cover plate is perpendicular to the airway axis, the first inclined surface abuts against the outer cone angle of the extension bulge located at the upper part of the inner wall of the airway, and the second inclined surface abuts against the inner cone angle of the extension bulge located at the lower part of the inner wall of the airway.

5. An internal combustion engine timing system for controlling the opening moment, closing moment, opening time, and opening cross-sectional area of the valve of the internal combustion engine according to any one of claims 1 to 4; characterized in that: include: A shift lever, wherein a strip-shaped sliding groove is formed on an end surface of the shift lever, one end of the shift lever is movably connected to the end of the connecting member of the internal combustion engine valve according to any one of claims 1 to 4, and can be rotated around the axis of the connecting member to a set angle and then abut against the connecting member, thereby driving the connecting member to rotate, and the shift lever is arranged perpendicular to the connecting member; A tappet is arranged perpendicular to the connecting member, a slider is fixedly provided on a side wall of one end of the tappet, the slider is slidably connected to the sliding groove, and the other end of the tappet is connected to a driving device; the driving device is capable of driving the tappet to reciprocate along the axis of the tappet; as well as The swing assembly is connected to the tappet and can drive the tappet to swing, thereby adjusting the initial angle between the tappet and the shifting rod.

6. The internal combustion engine timing system according to claim 5, characterized in that: A slot is provided at one end of the connecting member, and a cutout parallel to the axis of the connecting member is provided on one side of the slot; a connecting block arranged perpendicular to the shift rod is fixedly provided on the side wall of one end of the shift rod, and the connecting block is rotatably set in the slot, and a limit block is fixed on the side wall of the connecting block, and the limit block is located at the position of the cutout, and after the shift rod drives the connecting block to rotate around the slot hole at a set angle from the initial position, the limit block abuts against the side wall of the cutout.

7. The internal combustion engine timing system according to claim 6, characterized in that: It also includes a shift rod spring, which is sleeved on the connecting block, and one end of the shift rod spring is fixedly connected to the connecting block, and the other end is fixedly connected to the inner wall of the slot hole. The shift rod spring can drive the connecting block to drive the shift rod to rotate in the opposite direction to a set angle and maintain it at the initial position.

8. The internal combustion engine timing system according to claim 6, characterized in that: The swing assembly includes a push rod sleeve, which is slidingly sleeved on the push rod. A sleeve pin is fixedly provided on the side wall of the push rod sleeve away from the shift rod, and the sleeve pin is rotationally connected to the internal combustion engine; a push rod is connected to the side wall of the push rod sleeve close to the shift rod, and the push rod is used to push the push rod sleeve to swing around the sleeve pin; a push rod sleeve reset device is connected to the side of the push rod sleeve away from the push rod, and the push rod sleeve reset device can drive the push rod sleeve to swing in the opposite direction to the initial position.

9. The internal combustion engine timing system according to claim 6, characterized in that: The driving device includes a cam, a side wall of the cam abuts against an end of the tappet away from the shift rod, a camshaft of the cam is transmission-connected to an output shaft of the engine via a crankshaft, and the engine can drive the cam to rotate.

10. An internal combustion engine, characterized in that: include: An internal combustion engine body, wherein the internal combustion engine body is provided with an internal combustion engine valve according to any one of claims 1 to 4 and an internal combustion engine timing system according to any one of claims 5 to 9.

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