engine

Abstract

The application discloses an engine, comprising: a cylinder head; an intake and exhaust mechanism, comprising an air intake mechanism and an air exhaust mechanism, the air intake mechanism is used for air intake of the engine, and the air exhaust mechanism is used for air exhaust of the engine; a cam mechanism; a crankcase, which is formed with a second containing space; a crankshaft connecting rod mechanism, which is at least partially arranged in the second containing space; a balance mechanism, which is at least partially arranged in the second containing space and connected with the crankshaft connecting rod mechanism; the engine further comprises: a throttle mechanism, the throttle mechanism comprises: a main channel, which is connected with the air intake mechanism and used for controlling air input to the air intake mechanism; and a throttle channel, which is integrally formed with the main channel and at least partially communicates with the main channel. The application has the beneficial effect that: the throttle mechanism can be arranged as an integrally formed piece, thereby avoiding the leakage risk caused by poor connection, aging and other problems, and improving the sealing performance of the throttle mechanism.

Description

Technical Field

[0001] This invention relates to the field of power systems, and in particular to an engine. Background Technology

[0002] In existing technology, the throttle mechanism controls the engine's air intake when the engine is idling by using a hose. Idle speed refers to the engine running without load, i.e., the clutch is engaged, the transmission is in neutral, and the accelerator pedal is fully released. However, in practice, leaks in the throttle mechanism can occur due to hose aging and weakened sealing. Summary of the Invention

[0003] To address the leakage problem in the throttle mechanism caused by hose aging and weakened sealing, this invention provides an engine comprising: a cylinder head having a first accommodating space; an intake and exhaust mechanism at least partially disposed within the first accommodating space, the intake and exhaust mechanism including an intake mechanism for engine intake and an exhaust mechanism for engine exhaust; a cam mechanism at least partially disposed within the first accommodating space for controlling the intake and exhaust mechanisms; a crankcase having a second accommodating space; a crankshaft connecting rod mechanism at least partially disposed within the second accommodating space; and a balancing mechanism at least partially disposed within the second accommodating space and connected to the crankshaft connecting rod mechanism. The engine further comprises: a throttle mechanism including: a main channel connected to the intake mechanism for controlling air input to the intake mechanism; and a throttle passage integrally formed with and at least partially connected to the main channel.

[0004] Furthermore, the throttle passage includes: an intake port for controlling the input of air to the throttle valve mechanism; an exhaust port for controlling the input of air to the intake mechanism; a throttle passage connecting the intake port and the exhaust port; and an exhaust outlet disposed on the throttle passage, between and connecting the throttle passage and the exhaust port, allowing air to be input through the throttle passage to the exhaust outlet.

[0005] Furthermore, the air intake, air outlet, throttle air passage, and air outlet are all integrally formed with the main channel.

[0006] Furthermore, the air intake port is connected to the first section of the main channel and is used to control the air input to the throttle air passage; the air outlet port is connected to the second section of the main channel and is used to control the air input to the intake mechanism.

[0007] Furthermore, the main channel includes: one end of the channel, one end of which is connected to the air intake mechanism, and the other end of the channel is connected to the air outlet, the one end of the channel being used to control the air intake of the air outlet to the air intake mechanism; and two ends of the channel, one end of which is connected to the air intake, and the other end of the channel being connected to the outside, the two ends of the channel being used to control the air intake to the air inlet.

[0008] Furthermore, the throttle air passages are set up in a basically parallel manner to the main passage.

[0009] Furthermore, the engine includes at least a first state and a second state; when the engine is in the first state, the engine intake is controlled by the throttle passage; when the engine is in the second state, the engine intake is controlled by the main passage.

[0010] Furthermore, the throttle mechanism also includes: a valve for controlling the opening and closing degree of the throttle passage; and a valve body motor connected to the valve for controlling the opening and closing degree of the throttle passage.

[0011] Furthermore, the valve includes: a valve head for controlling the opening and closing degree of the throttle passage; and a valve body connected to a valve body motor for controlling the valve head.

[0012] Furthermore, the throttle mechanism also includes: a channel valve, which is at least partially disposed in the main channel and is used to control the opening and closing of the main channel; the channel valve includes: a valve shaft, with both ends of the valve shaft passing through the main channel; a throttle cable, which is disposed at one end of the valve shaft and is used to control the rotation of the valve shaft; and a throttle plate, which is rotatably connected to the valve shaft and disposed in the main channel and is used to control the opening and closing of the main channel.

[0013] Compared with the prior art, the engine provided by the present invention can avoid the risk of leakage caused by poor connection, aging and other problems by setting the throttle mechanism as a one-piece molded part, thereby improving the sealing performance of the throttle mechanism. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the engine of the present invention.

[0015] Figure 2 This is an exploded view of the overall structure of the engine of the present invention.

[0016] Figure 3 This is a cross-sectional structural schematic diagram of the engine of the present invention.

[0017] Figure 4 This is a partial structural diagram of the engine of the present invention.

[0018] Figure 5 This is a half-sectional structural diagram of the engine of the present invention.

[0019] Figure 6This is a structural schematic diagram of the throttle valve mechanism of the present invention from the first angle.

[0020] Figure 7 This is a structural schematic diagram of the throttle valve mechanism of the present invention from the second angle. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in specific embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] like Figures 1 to 3 As shown, an engine 100 includes a housing assembly 200, which includes a cylinder head cover 1, a cylinder head 2, a cylinder block 3, a crankcase 4, and an oil pan 5. Side covers 6 are provided on both sides of the crankcase 4. The cylinder head cover 1 covers and seals the cylinder head 2, retaining lubricating oil inside the engine 100 while isolating dirt and moisture from the outside. The cylinder head 2 and cylinder block 3 form a basically sealed space, which seals the gases and constitutes a combustion space to withstand high-temperature, high-pressure combustion gases. The cylinder block 3 and crankcase 4 are the basic structure of the engine 100. The oil pan 5 seals the crankcase 4 and, after connecting with the crankcase 4, forms an oil reservoir to prevent impurities from entering and to collect and store lubricating oil free on the various friction surfaces of the engine 100.

[0023] like Figures 2 to 5 As shown, the engine 100 also includes a cam mechanism 7, an intake and exhaust mechanism 8, an ignition mechanism 9, a piston mechanism 11, a transmission mechanism 12, a crankshaft connecting rod mechanism 13, and a balancing mechanism 14. The housing assembly 200 forms a receiving space 201, in which the cam mechanism 7, intake and exhaust mechanism 8, ignition mechanism 9, piston mechanism 11, transmission mechanism 12, crankshaft connecting rod mechanism 13, and balancing mechanism 14 are at least partially disposed. In this embodiment, the receiving space 201 includes a first receiving space 2011, a second receiving space 2012, and a third receiving space 2013.

[0024] The cylinder head 2 forms a first accommodating space 2011, in which the cam mechanism 7, intake and exhaust mechanisms 8, and ignition mechanism 9 are at least partially disposed. The cylinder block 3 forms a second accommodating space 2012, in which the piston mechanism 11 is at least partially disposed. The crankcase 4 forms a third accommodating space 2013, in which the transmission mechanism 12, crankshaft connecting rod mechanism 13, and balancing mechanism 14 are at least partially disposed. The crankshaft connecting rod mechanism 13 connects the cam mechanism 7, piston mechanism 11, and balancing mechanism 14. The cam mechanism 7 contacts the intake and exhaust mechanisms 8.

[0025] like Figure 4 and Figure 5 As shown, the intake and exhaust mechanism 8 includes an intake mechanism 81 and an exhaust mechanism 82. An ignition mechanism 9 is located between the intake mechanism 81 and the exhaust mechanism 82. The crankshaft connecting rod mechanism 13 includes a crankshaft 131 and a connecting rod 132. One end of the connecting rod 132 is connected to a piston mechanism 11, and the other end is connected to the crankshaft 131. The crankshaft 131 and the balance mechanism 14 are connected via gear meshing. The piston mechanism 11 includes a piston 111 and a piston pin 112. The piston 111 and the connecting rod 132 are connected via the piston pin 112. Along the axial direction of the ignition mechanism 9, a cylinder block 3 is located near one end of the ignition mechanism 9, and a cam mechanism 7 is located near the other end. The cam mechanism 7 includes a camshaft 71 and a bearing seat 72. The camshaft 71 includes a first wheel shaft 711 and a second wheel shaft 712. The cylinder head cover 1 and the cylinder head 2 are connected via the bearing seat 72. Figure 2 As shown, the crankshaft 131 and the camshaft mechanism 7 are connected via a valve train assembly 15. The valve train assembly 15 is disposed in the receiving space formed by the cylinder head 2, cylinder block 3, and crankcase 4. The valve train assembly 15 includes a timing chain 151, and the crankshaft 131 and the camshaft mechanism 7 are connected via the timing chain 151. Figures 2 to 4 As shown, the transmission mechanism 12 includes a main transmission shaft 121 and a secondary transmission shaft 122, which are connected by gear meshing. The crankshaft 131 drives the transmission mechanism 12, transmitting power to the front and / or rear wheels of the vehicle, thereby driving the vehicle.

[0026] like Figure 5 As shown, the space between the ignition mechanism 9 and the cylinder block 3 is the combustion chamber 16. The combustion chamber 16 is configured as the space between the top of the piston 111 and the bottom surface of the cylinder head 2 after the piston 111 reaches top dead center. Top dead center is the position where the top of the piston 111 is furthest from the center of rotation of the crankshaft 131. The top of the piston 111 refers to the end face of the piston 111 near the cylinder head 2, and the bottom surface of the cylinder head 2 refers to the surface of the cylinder head 2 near the top of the piston 111.

[0027] The piston 111 is driven by the crankshaft connecting rod mechanism 13, which causes the piston 111 to reciprocate linearly in the cylinder block 3.

[0028] The intake mechanism 81 supplies fresh air or a combustible mixture into the combustion chamber 16. The ignition mechanism 9 ignites the fresh air or combustible mixture, causing it to burn in the combustion chamber 16. The piston mechanism 11 converts the heat energy from combustion into mechanical energy, which drives the crankshaft 131 via the connecting rod 132. The crankshaft 131 drives the cam mechanism 7 via the valve train 15, thereby opening and closing the intake mechanism 81 and the exhaust mechanism 82. Simultaneously, the crankshaft 131 drives the transmission mechanism 12, which transmits power to the vehicle. The exhaust mechanism 82 filters the exhaust gases after combustion, allowing them to be released into the atmosphere.

[0029] Throttle mechanism 19 is a controllable valve that controls the air entering the engine 100. After the air enters the intake mechanism 81, it mixes with gasoline to become a combustible mixture, which then burns to produce power. One end of throttle mechanism 19 is connected to the air filter, and the other end of throttle mechanism 19 is connected to the cylinder head 2.

[0030] like Figure 3 As shown, in one implementation, the throttle mechanism 19 is connected to the housing assembly 200. Specifically, the throttle mechanism 19 is connected to the cylinder head 2. Figure 3 and Figure 5 As shown, the intake mechanism 81 includes an intake manifold 812 and a first valve mechanism 811. The throttle mechanism 19 is connected to the intake mechanism 81. When the engine 100 is a single-cylinder engine, there is one intake and exhaust mechanism 8, and two intake mechanisms 81 and two exhaust mechanisms 82. When the engine 100 is a twin-cylinder engine, there are two intake and exhaust mechanisms 8, and four intake mechanisms 81 and four exhaust mechanisms 82. That is, one intake and exhaust mechanism 8 includes two intake mechanisms 81 and two exhaust mechanisms 82.

[0031] Specifically, the throttle mechanism 19 is at least partially located on the intake manifold 812, and the throttle mechanism 19 is fixedly connected to the intake manifold 812 by means of threads or other methods. For example... Figure 6 and Figure 7As shown, the throttle mechanism 19 includes a main channel 191, a throttle valve body 192, and a valve body motor 193. One end of the main channel 191 is connected to the outside, and the other end is connected to the intake manifold 812. The end of the main channel 191 connected to the intake manifold 812 is threaded. The intake manifold 812 is fixedly connected to the main channel 191 by threads or other means. The throttle valve body 192 is located on one side of the main channel 191. The throttle valve body 192 is at least partially integrally formed with the main channel 191, thereby avoiding the risk of leakage due to poor connection, aging, or other problems. The valve body motor 193 is used to control the opening and closing of the throttle valve body 192. When the main channel 191 is closed, the valve body motor 193 controls the throttle valve body 192 to open, thereby controlling the air input to the intake manifold 812 through the throttle valve body 192. The throttle valve body 192 includes a valve 1921 and a throttle passage 1922. The throttle passage 1922 is integrally formed with the main passage 191, which avoids the risk of leakage due to poor connection or aging, thus making the connection of the throttle mechanism 19 more stable and improving the sealing performance of the throttle mechanism 19. The throttle passage 1922 is at least partially connected to the main passage 191, and the throttle passage 1922 introduces air into the intake manifold 812 through the main passage 191. The throttle passage 1922 includes an intake port 1922a, an exhaust port 1922b, a throttle passage 1922c, and an exhaust outlet 1922d. The intake port 1922a is integrally formed with the main passage 191, which improves the sealing performance of the throttle passage 1922, thereby introducing air into the throttle mechanism 19 through the main passage 191 and effectively avoiding the risk of leakage due to poor connection or aging. The air outlet 1922b is integrally formed with the main channel 191, which improves the sealing of the throttle channel 1922. This allows air to be primarily introduced into the intake channel 812 through the main channel 191, effectively avoiding leakage risks caused by poor connections or aging. The throttle channel 1922c is integrally formed with the main channel 191, connecting the air outlet 1922d and the air intake 1922a. Specifically, the first section of the throttle channel 1922c connects to the air outlet 1922d, and the second section connects to the air intake 1922a. The air outlet 1922d is located on the first section of the throttle passage 1922c. It is positioned between the throttle passage 1922c and the air outlet 1922b, connecting them. The air outlet 1922d allows air input from the intake port 1922a to pass through the throttle passage 1922c to the air outlet 1922b, thereby directing air into the intake passage 812 via the air outlet 1922b. The air outlet 1922d is integrally formed with the main passage 191, improving the sealing of the throttle passage 1922. This ensures that air is primarily input into the intake passage 812 via the air outlet 1922b, effectively preventing leakage risks caused by poor connections or aging.In this embodiment, the throttle channel 1922 is integrally formed with the main channel 191. Specifically, the air inlet 1922a, air outlet 1922b, throttle passage 1922c, and air outlet 1922d are all integrally formed with the main channel 191, allowing air to sequentially pass through the air inlet 1922a, throttle passage 1922c, air outlet 1922d, and air outlet 1922b before entering the main channel 191. This allows air to enter the intake duct 812 through the main channel 191, improving the sealing performance of the throttle channel 1922 and ensuring that air is primarily supplied to the intake duct 812, effectively avoiding leakage risks caused by poor connections or aging. The air valve 1921 controls the opening and closing degree of the air outlet 1922d via the valve body motor 193, thereby controlling the amount of air entering the air outlet 1922d. The valve body motor 193 can be a stepper motor.

[0032] Engine 100 includes at least a first state and a second state. When engine 100 is in the first state, that is, when engine 100 is idling, the main passage 191 is closed, and the intake of engine 100 is controlled by throttle valve body 192. Idle state refers to the state where engine 100 operates without load, i.e., the clutch is engaged, the transmission is in neutral, and the accelerator pedal is fully released. Specifically, when engine 100 is in the first state, main passage 191 is closed, valve body motor 193 controls outlet 1922d to open, and air enters from intake port 1922a, thus causing air to pass sequentially through throttle passage 1922c, outlet 1922d, and outlet port 1922b, thereby allowing air to enter intake manifold 812. When the engine 100 is in the second state, that is, when the engine 100 is in a non-idling state, the main passage 191 is open, and the intake of the engine 100 is controlled by the main passage 191. The air valve 1921 controls the outlet 1922d to close. At this time, the valve body motor 193 controls the air valve 1921 to close the outlet 1922d, so that air cannot enter the outlet port 1922b through the outlet 1922d, thereby preventing air from entering the intake manifold 812 through the throttle passage 1922. The main passage 191 is controlled to open and close by the passage valve 194. The passage valve 194 includes a throttle cable 1941, a valve shaft 1942, and a baffle plate 1943, which are connected in sequence. A valve shaft 1942 passes through the main channel 191, with both ends of the valve shaft 1942 located on either side of the main channel 191. A throttle cable 1941 is located at one end of the valve shaft 1942. Both ends of the valve shaft 1942 are sealed to prevent air from entering the main channel 191 from the valve shaft 1942. A baffle plate 1943 is rotatably connected to the valve shaft 1942. The sealing at both ends of the valve shaft 1942 can be achieved using O-ring seals, and the baffle plate 1943 can be a circular steel sheet.

[0033] When the valve shaft 1942 controls the air baffle 1943 through the throttle cable 1941, making the axis of the air baffle 1943 basically parallel to the axis of the main channel 191, the air baffle 1943 blocks the main channel 191, thereby closing the main channel 191; when the valve shaft 1942 controls the air baffle 1943 through the throttle cable 1941, making the axis of the air baffle 1943 basically perpendicular to the axis of the main channel 191, that is, when the air baffle 1943 rotates about 90°, a gap is formed between the air baffle 1943 and the main channel 191, thereby opening the main channel 191.

[0034] In this embodiment, the main channel 191 has two ends, namely channel one end 1911 and channel two end 1912. One end of channel one end 1911 is connected to the air intake duct 812, and one end of channel two end 1912 is connected to the outside, facilitating air to be input into the air intake duct 812 through channel one end 1911 and channel two end 1912. One end of the air intake port 1922a is connected to the throttle air passage 1922c, and the other end of the air intake port 1922a is connected to the other end of channel two end 1912, facilitating air to be input into the throttle air passage 1922c through the air intake port 1922a and channel two end 1912. One end of the air outlet 1922b is connected to the air outlet 1922d, and the other end of the air outlet 1922b is connected to the other end of channel one end 1911, facilitating air to be input into channel one end 1911 through the air outlet 1922b and air outlet 1922d, thereby allowing air to be input into the air intake duct 812. With the above configuration, the throttle valve body 192 can be connected to the main channel 191, which makes it easier for the throttle valve body 192 and the throttle mechanism 19 to be integrally formed, thereby avoiding the risk of leakage due to poor connection, aging and other problems.

[0035] When the engine 100 is a two-cylinder engine, the throttle mechanism 19 includes a first main channel 1911, a second main channel 1912, a throttle valve body 192, and a valve body motor 193. The first main channel 1911 and the second main channel 1912 are arranged substantially parallel to each other. The throttle valve body 192 is at least partially disposed between the first main channel 1911 and the second main channel 1912. The throttle valve body 192 is at least partially integrally formed with the first main channel 1911 and at least partially integrally formed with the second main channel 1912, thereby avoiding the risk of leakage due to poor connection, aging, and other problems, and improving the sealing performance of the throttle mechanism 19. The throttle valve body 192 includes a throttle passage 1922 and a valve 1921. The throttle passage 1922 is at least partially disposed between the first main passage 1911 and the second main passage 1912. The throttle passage 1922 is integrally formed with the first main passage 1911 and the second main passage 1912, thereby avoiding the risk of leakage due to poor connection or aging, and improving the sealing performance of the throttle mechanism 19. The throttle passage 1922 includes an outlet 1922d, two inlet holes 1922a, two outlet holes 1922b, and a throttle air passage 1922c. The outlet 1922d is disposed between the first main passage 1911 and the second main passage 1912, and is integrally formed with both the first and second main passages. Two air intake ports 1922a are located between the first main channel 1911 and the second main channel 1912. Both air intake ports 1922a and the second main channel 1912 are integrally formed. Two air outlet ports 1922b are located between the first main channel 1911 and the second main channel 1912. Both air outlet ports 1922b and the second main channel 1912 are integrally formed. A throttle intake channel 1922c is located between the first main channel 1911 and the second main channel 1912. Both throttle intake channels 1922c and the second main channel 1912 are integrally formed. With the above-described configuration, the air outlet 1922d, the two air inlets 1922a, the two air outlets 1922b, and the throttle passage 1922c are all integrally formed with the first main channel 1911, while the air outlet 1922d, the two air inlets 1922a, the two air outlets 1922b, and the throttle passage 1922c are all integrally formed with the second main channel 1912. This avoids the risk of leakage due to poor connection or aging, and improves the sealing performance of the throttle mechanism 19. The throttle passage 1922c is basically parallel to the first main channel 1911, and the throttle passage 1922c is basically parallel to the second main channel 1912.A connecting portion 196 is provided between the first main channel 1911 and the second main channel 1912. The connecting portion 196 is integrally formed with the first main channel 1911 and the second main channel 1912, thereby avoiding the risk of leakage due to poor connection, aging, and other problems, and improving the sealing performance of the throttle mechanism 19. The throttle valve body 192 is at least partially disposed on the connecting portion 196, and the valve body motor 193 is at least partially disposed on the connecting portion 196. The throttle valve body 192 can be arranged along the extension direction of the connecting portion 196. The extension direction of the connecting portion 196 refers to the direction parallel to the axis of the main channel 191. The channel valve 194 includes a throttle cable 1941, a valve shaft 1942, a first air baffle 1943a, and a second air baffle 1943b. The valve shaft 1942 passes through the first main channel 1911 and the second main channel 1912. The axis of the valve shaft 1942 is basically perpendicular to the axis of the first main channel 1911 and the axis of the second main channel 1912. The two ends of the valve shaft 1942 are located on opposite sides of the first main channel 1911 and the second main channel 1912, that is, the two ends of the valve shaft 1942 pass through the first main channel 1911, the connecting part 196, and the second main channel 1912 in sequence. One end of the valve shaft 1942 is provided with a throttle cable 1941, and both ends of the valve shaft 1942 are sealed and fixed. The first air-blocking plate 1943a is rotatably connected to the valve shaft 1942 and located in the first main channel 1911, and the second air-blocking plate 1943b is rotatably connected to the valve shaft 1942 and located in the second main channel 1912. This allows the first air-blocking plate 1943a to control the opening and closing of the first main channel 1911, and the second air-blocking plate 1943b to control the opening and closing of the second main channel 1912. Specifically, the first air-blocking plate 1943a rotates with the valve shaft 1942, thereby controlling the opening and closing of the first main channel 1911; similarly, the second air-blocking plate 1943b rotates with the valve shaft 1942, thereby controlling the opening and closing of the second main channel 1912.

[0036] The valve body motor 193 is located near one end 1911 of the channel, facilitating the control of the air valve 1921 to open and close the air outlet 1922d. The connecting part 196 has a valve groove 1961, in which the air valve 1921 is located and connected to the valve body motor 193. Specifically, the throttle passage 1922c can be arranged along the extension direction of the connecting part 196. This arrangement allows the throttle passage 1922c to be substantially parallel to the main channel 191, facilitating the connection between the air inlet 1922a and the throttle passage 1922c and the main channel 191, and facilitating the connection between the air outlet 1922b and the air outlet 1922d and the main channel 191, allowing air to be more smoothly input into the intake passage 812. Two air intakes 1922a are symmetrically arranged about the axis of the throttle intake channel 1922c. A first main channel 1911 connects to one end of one air intake 1922a, and a second main channel 1912 connects to one end of the other air intake 1922a. The throttle intake channel 1922c connects to the other ends of both air intakes 1922a. Two air outlets 1922b are symmetrically arranged about the axis of the throttle intake channel 1922c. A first main channel 1911 connects to one end of one air outlet 1922b, and a second main channel 1912 connects to one end of the other air outlet 1922b. Air outlets 1922d connect to the other ends of both air outlets 1922b. The center of the air outlet 1922d is basically located on the axis of the throttle intake 1922c, and the air outlet 1922d is located on the side wall of the throttle intake 1922c, which facilitates the even input of air to the two air outlets 1922b through the air outlet 1922d, the two air inlets 1922a, and the two air outlets 1922b. By arranging the air outlet 1922d, the two air inlets 1922a, and the two air outlets 1922b in a reasonable manner in the throttle mechanism 19, it is easier to improve the intake efficiency of the air inlet 1922a and the exhaust efficiency of the air outlet 1922b.

[0037] Specifically, the axis of valve shaft 1942 is substantially perpendicular to the axis of the first main channel 1911, and the axis of valve shaft 1942 is substantially perpendicular to the axis of the second main channel 1912. A throttle passage 1922c is located on one side of the axis of valve shaft 1942, and a valve body motor 193 is located on the other side. There is a gap between valve shaft 1942 and throttle passage 1922c; that is, there is no connection between valve shaft 1942 and throttle passage 1922c, thereby preventing air from entering the throttle passage 1922c through valve shaft 1942 and facilitating the sealing of the throttle mechanism 19.

[0038] Furthermore, the air valve 1921 includes a valve head 1921a and a valve body 1921b, which are integrally formed. The valve body 1921b is connected to a valve body motor 193, and the valve head 1921a is used to open and close the air outlet 1922d. Specifically, the valve body motor 193 controls the valve body 1921b to push and / or pull the valve head 1921a, thereby causing the valve head 1921a to close and / or open the air outlet 1922d.

[0039] In this embodiment, a first plug 195 is provided on the valve head 1921a. The first plug 195 is used to fill the gap between the valve 1921 and other components, thereby improving the sealing performance of the throttle mechanism 19 during use. Specifically, the first plug 195 is cup-shaped, which facilitates better filling of the gap between the valve 1921 and other components, thus improving the sealing performance of the throttle mechanism 19.

[0040] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An engine, comprising: Cylinder head, wherein the cylinder head has a first receiving space; An intake and exhaust mechanism is provided, at least partially disposed in the first accommodating space, the intake and exhaust mechanism including an intake mechanism and an exhaust mechanism, the intake mechanism being used for intake of the engine, and the exhaust mechanism being used for exhaust of the engine; A cam mechanism, at least partially disposed in the first accommodating space, is used to control the intake and exhaust mechanism; A crankcase, wherein the crankcase forms a second receiving space; A crankshaft connecting rod mechanism, wherein the crankshaft connecting rod mechanism is at least partially disposed in the second accommodating space; A balancing mechanism, which is at least partially disposed in the second receiving space and connected to the crankshaft connecting rod mechanism; The engine is characterized in that it further includes: Throttle valve mechanism, the throttle valve mechanism comprising: The main channel is connected to the air intake mechanism and is used to control the air input to the air intake mechanism; A throttle channel is integrally formed with the main channel and at least partially connected to the main channel. The throttle channel includes an air intake for controlling air input to the throttle valve mechanism, an air outlet for controlling air input to the intake mechanism, and a throttle air passage connecting the air intake and the air outlet. The throttle air passage is substantially parallel to the main channel, and the throttle channel is integrally formed with the main channel in all directions parallel to the main channel.

2. The engine according to claim 1, characterized in that, The throttle channel includes: An air outlet is provided on the throttle passage, and the air outlet is located between the throttle passage and the air outlet and connects the throttle passage and the air outlet. The air outlet allows air to be input into the air outlet through the throttle passage.

3. The engine according to claim 2, characterized in that, The air inlet, air outlet, and air vent are all integrally formed with the main channel.

4. The engine according to claim 2, characterized in that, The air intake is connected to the first section of the main channel and is used to control the air input to the throttle air passage; The air outlet is connected to the second section of the main channel and is used to control the air input to the air intake mechanism.

5. The engine according to claim 4, characterized in that, The main channel includes: One end of the channel is connected to the air intake mechanism, and the other end of the channel is connected to the air outlet. The channel is used to control the air input from the air outlet to the air intake mechanism. The two ends of the channel are connected to the air inlet at one end and to the outside at the other end. The two ends of the channel are used to control the input of air into the air inlet.

6. The engine according to claim 1, characterized in that, The engine includes at least a first state and a second state; When the engine is in the first state, the engine's air intake is controlled by the throttle passage; When the engine is in the second state, the engine's air intake is controlled by the main channel.

7. The engine according to claim 1, characterized in that, The throttle mechanism also includes: A throttle valve is used to control the degree of opening and closing of the throttle channel; A valve body motor is connected to the air valve and is used to control the opening and closing degree of the throttle passage.

8. The engine according to claim 7, characterized in that, The air valve includes: A valve head is used to control the degree of opening and closing of the throttle passage; The valve body is connected to the valve motor and is used to control the valve head.

9. The engine according to claim 1, characterized in that, The throttle valve mechanism also includes: A channel valve, at least partially disposed in the main channel, is used to control the opening and closing of the main channel; The channel valve includes: A valve shaft, with both ends of the valve shaft passing through the main channel; A throttle cable is disposed at one end of the valve shaft and is used to control the rotation of the valve shaft; a baffle plate is rotatably connected to the valve shaft and disposed in the main channel and is used to control the opening and closing of the main channel.

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