Engine assembly and vehicle

Abstract

The invention discloses an engine assembly and a vehicle, and the engine assembly comprises a cylinder which comprises a cylinder body and a cylinder cover, and the cylinder cover and the cylinder body are connected and jointly define a main combustion chamber; the pre-combustion structure is installed on the air cylinder cover, a pre-combustion chamber is defined in the pre-combustion structure, at least part of the pre-combustion structure is constructed to be a rotating part, a communicating hole is formed in the rotating part and used for communicating the main combustion chamber with the pre-combustion chamber, and the rotating axis of the rotating part coincides with or is parallel to the axis of the main combustion chamber. The communicating holes and the rotating axis of the rotating part are distributed at intervals. According to the engine assembly, the pre-combustion structure is arranged on the air cylinder cover, the combustion speed of fuel in the main combustion chamber can be increased, at least part of the pre-combustion structure is constructed to be the rotating part, and the space swept by flame entering the main combustion chamber can be enlarged through rotation of the rotating part; and the combustion speed of the fuel in the main combustion chamber is further increased, and discharging of residual waste gas in the pre-combustion chamber is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle manufacturing, and in particular to an engine assembly and a vehicle having the engine assembly. Background Art

[0002] With the continued rapid growth of global industry, the resulting demand for oil has also increased significantly. Due to the non-renewable nature of oil resources and the current lack of effective alternatives, reducing fuel consumption has become a major concern, with countries worldwide making continuous efforts to address this issue. With my country's increasingly stringent fuel consumption and emissions regulations, improving engine thermal efficiency and reducing fuel consumption have become key research priorities for automakers, leaving room for improvement. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an engine assembly that increases the combustion rate of fuel in a main combustion chamber, improves the engine's thermal efficiency, reduces the engine's energy consumption, and facilitates the discharge of residual exhaust gas from a pre-combustion chamber.

[0004] According to an embodiment of the present invention, an engine assembly includes: a cylinder, wherein the cylinder includes a cylinder block and a cylinder head, the cylinder head is connected to the cylinder block and together defines a main combustion chamber; a pre-combustion structure, wherein the pre-combustion structure is installed in the cylinder head, and a pre-combustion chamber is defined within the pre-combustion structure, at least a portion of the pre-combustion structure is configured as a rotating portion, the rotating portion is formed with a connecting hole, the connecting hole is used to connect the main combustion chamber with the pre-combustion chamber, the rotation axis of the rotating portion coincides with or is parallel to the axis of the main combustion chamber, and the connecting hole is spaced apart from the rotation axis of the rotating portion.

[0005] According to the engine assembly of an embodiment of the present invention, a pre-combustion structure is provided at the cylinder head, so that part of the fuel can be burned in the pre-combustion chamber first, and the flame generated by the combustion can enter the main combustion chamber through the connecting hole to ignite the fuel in the main combustion chamber, thereby increasing the combustion speed of the fuel in the main combustion chamber, and at least a part of the pre-combustion structure is constructed as a rotating part. The rotation of the rotating part can increase the space swept by the flame entering the main combustion chamber, further increasing the combustion speed of the fuel in the main combustion chamber, improving the thermal efficiency of the engine, reducing the energy consumption of the engine, and facilitating the discharge of residual exhaust gas in the pre-combustion chamber.

[0006] According to some embodiments of the present invention, the engine assembly further includes a control module, which is used to obtain the engine speed. The control module is suitable for controlling the rotation of the rotating part according to the engine speed; wherein the speed of the rotating part is V1, the engine speed is V2, and satisfies: V1 / V2≤0.1.

[0007] According to some embodiments of the present invention, the engine assembly further includes a drive structure connected to the rotating part, and the control module is electrically connected to the drive structure and is used to control the drive structure to drive the rotating part to rotate.

[0008] According to the engine assembly of some embodiments of the present invention, the driving structure includes a driving motor and a driving gear, the driving motor is electrically connected to the control module, a driven gear is provided on the outer peripheral wall of the rotating part, the driving gear is engaged with the driven gear, and the driving motor drives the rotating part to rotate through the driving gear and the driven gear.

[0009] According to the engine assembly of some embodiments of the present invention, the axis of the motor shaft of the driving motor is parallel to and spaced from the axis of the rotating part, and the driving gear is fixedly sleeved outside the motor shaft.

[0010] According to some embodiments of the engine assembly of the present invention, the intake pipe of the engine is provided with an intake throttle, and the control module is used to drive the intake throttle to rotate to open or close the intake pipe; and / or, the pre-combustion structure is further provided with an ignition structure, and the control module is used to control the ignition structure to ignite the gas in the pre-combustion chamber.

[0011] According to some embodiments of the present invention, the engine assembly further includes a reduction gear set and a transmission chain, the outer peripheral wall of the rotating part is provided with a driven gear, the reduction gear set includes a plurality of reduction gears that are power-connected in sequence, one of the plurality of reduction gears is an input gear and another one is an output gear, the input gear is power-connected to the engine crankshaft through a transmission chain, and the output gear is engaged with the driven gear to drive the rotating part to rotate; wherein the rotational speed of the rotating part is V1, the rotational speed of the engine crankshaft is V3, and the following conditions are satisfied: V1 / V3≤0.1.

[0012] According to some embodiments of the engine assembly of the present invention, there are a plurality of communicating holes, and the plurality of communicating holes are spaced apart and distributed on a peripheral wall of the pre-combustion chamber around the axis of the rotating portion.

[0013] According to some embodiments of the engine assembly of the present invention, the pre-combustion structure includes a main body and a rotating part, the rotating part is connected to the bottom of the main body and together define the pre-combustion chamber, the main body is fixedly installed above the cylinder head, the rotating part is rotatably supported on the cylinder head, and the part of the rotating part provided with the connecting hole extends into the main combustion chamber, and the main body is provided with an ignition structure extending into the pre-combustion chamber.

[0014] According to the engine assembly of some embodiments of the present invention, a supporting ring convex is formed on the outer peripheral wall of the rotating part, a downwardly recessed mounting groove is formed on the top of the cylinder head, a through hole is provided on the bottom wall of the mounting groove, the supporting ring convex is supported in the mounting groove, and the bottom of the rotating part passes through the through hole and extends into the main combustion chamber.

[0015] According to the engine assembly of some embodiments of the present invention, the pre-combustion structure is integrally constructed as the rotating part, the bottom of the rotating part is formed with the communicating hole, and the upper part of the rotating part is provided with an ignition structure extending into the pre-combustion chamber.

[0016] The present invention also provides a vehicle.

[0017] A vehicle according to an embodiment of the present invention is provided with any one of the above-described engine assemblies.

[0018] The advantages of the vehicle and the above-mentioned engine assembly over the prior art are the same and will not be described in detail here.

[0019] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0021] Figure 1 is a schematic structural diagram of an engine assembly according to an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0023] Reference numerals:

[0024] Engine assembly 100,

[0025] Cylinder 1, cylinder body 11, cylinder head 12, mounting groove 121, through hole 122, main combustion chamber 13,

[0026] Pre-combustion structure 2, pre-combustion chamber 21, main body 22, rotating part 23, communicating hole 231, supporting ring protrusion 232, driven gear 24, ignition structure 25,

[0027] Control module 3 , drive structure 4 , drive motor 41 , driving gear 42 , intake pipe 5 , intake throttle valve 51 , exhaust pipe 6 , piston 7 . DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] Reference below Figure 1-Figure 2 The engine assembly 100 according to an embodiment of the present invention is described. By providing a pre-combustion structure 2 at the cylinder head 12, the combustion speed of the fuel in the main combustion chamber 13 can be increased. Furthermore, by configuring at least a portion of the pre-combustion structure 2 as a rotating portion 23, the combustion speed of the fuel in the main combustion chamber 13 can be further increased, the thermal efficiency of the engine can be improved, the energy consumption of the engine can be reduced, and the discharge of residual exhaust gas in the pre-combustion chamber 21 can be facilitated.

[0032] like Figure 1 As shown, an engine assembly 100 according to an embodiment of the present invention includes: a cylinder 1 and a pre-combustion structure 2 .

[0033] The cylinder 1 includes a cylinder body 11 and a cylinder head 12, the cylinder head 12 is connected to the cylinder body 11 and together define a main combustion chamber 13; the pre-combustion structure 2 is installed on the cylinder head 12, and a pre-combustion chamber 21 is defined in the pre-combustion structure 2. At least part of the pre-combustion structure 2 is constructed as a rotating part 23, and the rotating part 23 is formed with a connecting hole 231. The connecting hole 231 is used to connect the main combustion chamber 13 with the pre-combustion chamber 21. The rotation axis of the rotating part 23 coincides with or is parallel to the axis of the main combustion chamber 13, and the connecting hole 231 is spaced apart from the rotation axis of the rotating part 23.

[0034] Specifically, cylinder 1, as one of the core components in the engine assembly 100, can provide an enclosed space as a place where fuel and air are mixed and burned. Cylinder 1 includes a cylinder body 11 and a cylinder head 12. The cylinder body 11 can provide a space for fuel and air to burn, and the cylinder head 12 can seal the space. The cylinder head 12 and the cylinder body 11 are connected so that the cylinder head 12 and the cylinder body 11 can jointly define a main combustion chamber 13. The main combustion chamber 13 is used to allow fuel and air to burn inside it to provide power for the vehicle. At the same time, a pre-combustion structure 2 is also installed on the cylinder head 12, and a pre-combustion chamber 21 is defined in the pre-combustion structure 2. The pre-combustion chamber 21 is used to allow part of the fuel and air to burn in the pre-combustion chamber 21 first, and then use the flame of the fuel burning in the pre-combustion chamber 21 to ignite the fuel in the main combustion chamber 13, which can increase the combustion speed of the fuel in the main combustion chamber 13.

[0035] Furthermore, at least a portion of the pre-combustion structure 2 is constructed as a rotating portion 23, that is, a portion of the pre-combustion structure 2 is constructed as the rotating portion 23, or the entire pre-combustion structure 2 is constructed as the rotating portion 23, so that the rotating portion 23 can rotate relative to the cylinder 1, and a connecting hole 231 is formed on the rotating portion 23, and the connecting hole 231 is used to connect the main combustion chamber 13 with the pre-combustion chamber 21, so that the flame generated by the combustion of the fuel in the pre-combustion chamber 21 can enter the main combustion chamber 13 through the connecting hole 231, and ignite the fuel in the main combustion chamber 13, and the rotation of the rotating portion 23 can increase the space swept by the flame entering the main combustion chamber 13 from the pre-combustion chamber 21 in the main combustion chamber 13, thereby increasing the contact area between the flame and the fuel, which is beneficial to accelerate the combustion of the fuel in the main combustion chamber 13 and improve the combustion speed of the fuel in the main combustion chamber 13.

[0036] In addition, the rotation axis of the rotating part 23 is made to coincide with or be parallel to the axis of the main combustion chamber 13, and the rotating part 23 and the main combustion chamber 13 can be coaxially arranged or staggered, so that the flame can enter the main combustion chamber 13 and ignite the fuel in the main combustion chamber 13, which can increase the combustion speed of the fuel in the main combustion chamber 13. Moreover, the connecting hole 231 and the rotation axis of the rotating part 23 are spaced apart and distributed, so that there is a certain distance between the connecting hole 231 and the rotation axis of the rotating part 23, which can increase the linear velocity at the connecting hole 231, and then increase the space swept by the flame in the main combustion chamber 13, which is beneficial to increase the combustion speed of the fuel in the main combustion chamber 13. Moreover, it should be noted that the rotating part 23 can generate centrifugal force during the rotation process. During the exhaust process, the centrifugal force generated by the rotation of the rotating part 23 can be beneficial to the discharge of residual exhaust gas in the pre-combustion chamber 21.

[0037] Thus, the cylinder body 11 and the cylinder head 12 can jointly define a main combustion chamber 13 to provide space for the combustion of fuel, and a pre-combustion structure 2 is installed at the cylinder head 12, and a pre-combustion chamber 21 is formed in the pre-combustion structure 2. The pre-combustion chamber 21 is used to allow part of the fuel to burn inside it first, and the pre-combustion chamber 21 is connected to the main combustion chamber 13 through a connecting hole 231, so that the flame generated by the combustion of the fuel in the pre-combustion chamber 21 can enter the main combustion chamber 13 through the connecting hole 231 to ignite the fuel in the main combustion chamber 13, and at least part of the pre-combustion structure 2 is constructed as a rotating part 23, so that the rotating part 23 can rotate relative to the cylinder 1, and the rotation of the rotating part 23 can increase the space swept by the flame entering the main combustion chamber 13 in the main combustion chamber 13, and the rotating part 23 can generate centrifugal force when rotating, which is beneficial to the discharge of residual exhaust gas in the pre-combustion chamber 21.

[0038] According to the engine assembly 100 of an embodiment of the present invention, a pre-combustion structure 2 is provided at the cylinder head 12, so that part of the fuel can be burned in the pre-combustion chamber 21 first, and the flame generated by the combustion can enter the main combustion chamber 13 through the connecting hole 231, ignite the fuel in the main combustion chamber 13, and improve the combustion speed of the fuel in the main combustion chamber 13. In addition, at least a part of the pre-combustion structure 2 is constructed as a rotating part 23, and the rotation of the rotating part 23 can increase the space swept by the flame entering the main combustion chamber 13, further improve the combustion speed of the fuel in the main combustion chamber 13, improve the thermal efficiency of the engine, reduce the energy consumption of the engine, and facilitate the discharge of residual exhaust gas in the pre-combustion chamber 21.

[0039] In some embodiments, the engine assembly 100 further includes a control module 3, which is used to obtain the engine speed. The control module 3 is suitable for controlling the rotation of the rotating part 23 according to the engine speed; wherein the speed of the rotating part 23 is V1, the engine speed is V2, and satisfies: V1 / V2≤0.1.

[0040] Specifically, the rotating part 23 can rotate relative to the cylinder 1 to increase the combustion speed of the fuel. A control module 3 is also provided in the engine assembly 100. The control module 3 can be used to control the rotation speed of the rotating part 23 so that the rotation speed of the rotating part 23 will not be too fast or too slow. When the rotation speed of the rotating part 23 is too fast, it may cause the flame entering the main combustion chamber 13 to be extinguished, that is, the fuel in the main combustion chamber 13 cannot be ignited. When the rotation speed of the rotating part 23 is too slow, the effect of increasing the space swept by the flame through the rotation of the rotating part 23 is not obvious, that is, the effect of increasing the combustion speed of the fuel is not obvious.

[0041] In addition, the control module 3 can obtain the engine speed and control the speed of the rotating part 23 according to the engine speed, so that the speed of the rotating part 23 will not be too fast or too slow. The speed of the rotating part 23 can be set to V1, and the speed of the engine can be set to V2, so that the relationship between V1 and V2 satisfies V1 / V2≤0.1, that is, V1 / V2 can be 0.08, 0.05 or 0.03, etc., so that the speed of the rotating part 23 will not exceed 10% of the engine speed, to ensure that the speed of the rotating part 23 will not be too fast, and further ensure that the flame in the pre-combustion chamber 21 can enter the main combustion chamber 13 and ignite the fuel in the main combustion chamber 13.

[0042] In some embodiments, the engine assembly 100 further includes a driving structure 4 , which is connected to the rotating portion 23 . The control module 3 is electrically connected to the driving structure 4 and is used to control the driving structure 4 to drive the rotating portion 23 to rotate.

[0043] Specifically, the rotating part 23 can rotate relative to the cylinder 1 to increase the combustion speed of the fuel. A driving structure 4 is also provided in the engine assembly 100. The driving structure 4 can be used to provide driving force. The driving structure 4 is connected to the rotating part 23 so that the rotating part 23 can rotate under the drive of the driving structure 4. At the same time, the control module 3 is electrically connected to the driving structure 4 so that the control module 3 can control the rotation speed of the rotating part 23 through the driving structure 4, that is, the control module 3 can first obtain the engine speed, and then generate a signal according to the engine speed and transmit the signal to the driving structure 4, so that the driving structure 4 can generate a suitable driving force and drive the rotating part 23 to rotate, so as to control the rotation speed of the rotating part 23 and keep the rotation speed of the rotating part 23 within a reasonable range, thereby increasing the combustion speed of the fuel while ensuring that the fuel in the main combustion chamber 13 can be ignited.

[0044] In some embodiments, the driving structure 4 includes a driving motor 41 and a driving gear 42. The driving motor 41 is electrically connected to the control module 3. A driven gear 24 is provided on the outer peripheral wall of the rotating part 23. The driving gear 42 is engaged with the driven gear 24. The driving motor 41 drives the rotating part 23 to rotate through the driving gear 42 and the driven gear 24.

[0045] Specifically, the driving structure 4 is used to drive the rotating part 23 to rotate under the control of the control module 3. A driving motor 41 and a driving gear 42 are provided in the driving structure 4. The driving motor 41 can be used to generate driving force. The driving gear 42 can be sleeved on the motor shaft of the driving motor 41 to transmit the driving force generated by the driving motor 41 by using the driving gear 42. At the same time, Figure 1-Figure 2 As shown, a driven gear 24 is provided on the outer peripheral wall of the rotating part 23, that is, the driven gear 24 is sleeved outside the rotating part 23, so that the rotating part 23 can rotate under the drive of the driven gear 24, and the driven gear 24 is engaged with the driving gear 42, so that the driven gear 24 can be used to receive the driving force from the driving gear 42, so that the driving force from the drive motor 41 can be transmitted to the rotating part 23 through the driving gear 42 and the driven gear 24, so that the rotating part 23 rotates relative to the cylinder 1 to increase the combustion speed of the fuel.

[0046] In addition, the drive motor 41 is electrically connected to the control module 3 so that the drive motor 41 can generate a corresponding driving force according to the signal of the control module 3, and transmit the driving force to the rotating part 23 through the driving gear 42 and the driven gear 24, so that the rotating part 23 can rotate at a reasonable speed, thereby avoiding the rotating part 23 rotating at too fast a speed, which may cause the flame entering the main combustion chamber 13 to be extinguished, and further prevent the fuel in the main combustion chamber 13 from being ignited.

[0047] In some embodiments, the axis of the motor shaft of the driving motor 41 is parallel to and spaced apart from the axis of the rotating portion 23 , and the driving gear 42 is fixedly sleeved outside the motor shaft.

[0048] Specifically, the driving motor 41 drives the rotating part 23 to rotate through the driving gear 42 and the driven gear 24, wherein the driving gear 42 is sleeved on the motor shaft of the driving motor 41, and the driven gear 24 is sleeved on the outer peripheral wall of the rotating part 23, and the driving gear 42 is meshed with the driven gear 24, that is, the motor shaft of the driving motor 41 is arranged parallel to the rotating part 23, and the axis of the motor shaft of the driving motor 41 is parallel to and spaced apart from the axis of the rotating part 23, so that the motor shaft of the driving motor 41 and the rotating part 23 are spaced apart so that there is a certain distance between the two, the driving gear 42 and the driven gear 24 can be set, and interference between the motor shaft of the driving motor 41 and the rotating part 23 can be avoided, which causes the drive motor 41 to be unable to drive the rotating part 23 to rotate, and the driving gear 42 is fixedly sleeved outside the motor shaft, so that the driving gear 42 and the motor shaft are fixedly connected, ensuring that the driving gear 42 can rotate under the action of the drive motor 41, thereby improving the reliability of the drive motor 41 driving the rotating part 23 to rotate.

[0049] In some embodiments, the intake pipe 5 of the engine is provided with an intake throttle 51, and the control module 3 is used to drive the intake throttle 51 to rotate to open or close the intake pipe 5; and / or, the pre-combustion structure 2 is also provided with an ignition structure 25, and the control module 3 is used to control the ignition structure 25 to ignite the gas in the pre-combustion chamber 21.

[0050] Specifically, the intake pipe 5 of the engine is used to deliver air to the cylinder 1 so that the fuel can be mixed with the air for combustion. An intake throttle valve 51 is provided on the intake pipe 5 of the engine. The intake throttle valve 51 can rotate relative to the intake pipe 5, and the intake pipe 5 can be opened or closed during the rotation process to control the air flow entering the cylinder 1. Moreover, the control module 3 can be connected to the intake throttle valve 51 so that the control module 3 can control the intake throttle valve 51 and rotate the intake throttle valve 51 to open or close the intake pipe 5 to control the air flow entering the cylinder 1.

[0051] At the same time, an ignition structure 25 can be set in the pre-combustion structure 2, and the fuel in the pre-combustion chamber 21 can be ignited through the ignition structure 25, so that the fuel in the pre-combustion chamber 21 can be burned. The flame generated by the combustion can further enter the main combustion chamber 13 to ignite the fuel in the main combustion chamber 13, and the control module 3 can be connected to the ignition structure 25 so that the control module 3 can control the ignition structure 25, so that the ignition structure 25 can ignite the gas in the pre-combustion chamber 21 when needed, that is, ignite the fuel in the pre-combustion chamber 21.

[0052] In some embodiments, the engine assembly 100 also includes a reduction gear set and a transmission chain. The outer peripheral wall of the rotating part 23 is provided with a driven gear 24. The reduction gear set includes a plurality of reduction gears that are power-connected in sequence. One of the plurality of reduction gears is an input gear and another one is an output gear. The input gear is power-connected to the engine crankshaft through a transmission chain, and the output gear is engaged with the driven gear 24 to drive the rotating part 23 to rotate; wherein, the rotational speed of the rotating part 23 is V1, the rotational speed of the engine crankshaft is V3, and satisfies: V1 / V3≤0.1.

[0053] Specifically, the rotating part 23 can rotate relative to the cylinder 1 to increase the combustion speed of the fuel. A driven gear 24 is provided on the outer peripheral wall of the rotating part 23. The rotating part 23 can rotate under the drive of the driven gear 24. A reduction gear set and a transmission chain can be provided in the engine assembly 100. The reduction gear set is connected to the engine crankshaft and the driven gear 24 at the same time. Even if the reduction gear set can transmit the driving force on the engine crankshaft to the driven gear 24, the driven gear 24 can drive the rotating part 23 to rotate. The reduction gear set includes an input gear and an output gear. The input gear is connected to the engine crankshaft through a transmission chain power connection, and the output gear is engaged with the driven gear 24, so that the engine crankshaft can provide driving force to the driven gear 24 through the input gear and the output gear, so that the driven gear 24 can drive the rotating part 23 to rotate.

[0054] Among them, the reduction gear group includes a plurality of reduction gears that are power-connected in sequence, that is, the number of reduction gears can be two, three or more. When the number of reduction gears is two, one of the two reduction gears can be an input gear and the other can be an output gear. The input gear and the output gear are meshed for power transmission. When the number of reduction gears is greater than two, the remaining reduction gears except the input gear and the output gear are transmission gears. The input gear and the output gear are power-connected through the transmission gear to transmit the driving force on the engine crankshaft.

[0055] In addition, the rotational speed of the rotating part 23 can be set to V1, and the rotational speed of the engine crankshaft can be set to V3, so that the relationship between V1 and V3 satisfies V1 / V3≤0.1, that is, V1 / V3 can be 0.08, 0.05 or 0.03, etc., so that the rotational speed of the rotating part 23 will not exceed 10% of the engine crankshaft speed, to ensure that the rotational speed of the rotating part 23 is not too fast, to avoid the flame entering the main combustion chamber 13 from being extinguished, thereby ensuring that the flame in the pre-combustion chamber 21 can enter the main combustion chamber 13 and ignite the fuel in the main combustion chamber 13.

[0056] In some embodiments, there are a plurality of communicating holes 231 , and the plurality of communicating holes 231 are spaced apart and distributed on the peripheral wall of the pre-combustion chamber 21 around the axis of the rotating portion 23 .

[0057] Specifically, the connecting hole 231 is used to connect the pre-combustion chamber 21 with the main combustion chamber 13, so that the flame in the pre-combustion chamber 21 can enter the main combustion chamber 13 through the connecting hole 231, and ignite the fuel in the main combustion chamber 13. The connecting hole 231 can be set to multiple, that is, the number of connecting holes 231 can be two, three or more, so that the pre-combustion chamber 21 and the main combustion chamber 13 can be connected at the same time through the multiple connecting holes 231, so that the flame in the pre-combustion chamber 21 can enter the main combustion chamber 13 through the multiple connecting holes 231 at the same time, which can further accelerate the combustion of the fuel in the main combustion chamber 13 and improve the combustion speed of the fuel. In addition, multiple connecting holes 231 can be arranged on the peripheral wall of the pre-combustion chamber 21, that is, the pre-combustion chamber 21 can be connected with the main combustion chamber 13 by opening connecting holes 231 on the peripheral wall of the pre-combustion chamber 21, and the multiple connecting holes 231 are spaced apart and distributed around the axis of the rotating part 23, so that the multiple connecting holes 231 can be evenly distributed in the circumferential direction of the rotating part 23, and the distances between the multiple connecting holes 231 and the axis of the rotating part 23 are equal, so that the flames entering the main combustion chamber 13 from the pre-combustion chamber 21 through the multiple connecting holes 231 can be evenly distributed in the main combustion chamber 13, which can further improve the combustion speed of the fuel.

[0058] For example, Figure 2 As shown, the number of connecting holes 231 can be six, so that the pre-combustion chamber 21 and the main combustion chamber 13 can be connected at the same time through the six connecting holes 231, and the number of connecting holes 231 is not limited to that described in this embodiment, and can be flexibly set according to specific circumstances and space size.

[0059] In some embodiments, the pre-combustion structure 2 includes a main body 22 and a rotating part 23, the rotating part 23 is connected to the bottom of the main body 22 and together define a pre-combustion chamber 21, the main body 22 is fixedly installed above the cylinder head 12, the rotating part 23 is rotatably supported on the cylinder head 12, and the rotating part 23 is provided with a connecting hole 231 extending into the main combustion chamber 13, and the main body 22 is provided with an ignition structure 25 extending into the pre-combustion chamber 21.

[0060] Specifically, the pre-combustion structure 2 is used to allow the fuel to burn inside it. The pre-combustion structure 2 includes a main body 22 and a rotating part 23. The rotating part 23 can be connected to the bottom of the main body 22 so that the main body 22 and the rotating part 23 jointly define a pre-combustion chamber 21 to provide space for the combustion of the fuel. The main body 22 can be fixedly installed above the cylinder head 12 to achieve the installation of the pre-combustion structure 2, and the rotating part 23 can be rotatably supported on the cylinder head 12 so that the rotating part 23 can rotate relative to the cylinder head 12. At the same time, a connecting hole 231 can be provided on the rotating part 23, and the part of the rotating part 23 with the connecting hole 231 can be extended into the main combustion chamber 13 to connect the pre-combustion chamber 21 with the main combustion chamber 13 through the connecting hole 231, so that the flame in the pre-combustion chamber 21 can enter the main combustion chamber 13 through the connecting hole 231 to ignite the fuel in the main combustion chamber 13.

[0061] In addition, an ignition structure 25 extending into the pre-combustion chamber 21 is also provided on the main body 22. The ignition structure 25 can be set on the main body 22 to achieve the installation of the ignition structure 25, ensure the reliable operation of the ignition structure 25, and extend the ignition structure 25 into the pre-combustion chamber 21 so that the ignition structure 25 can ignite the fuel in the pre-combustion chamber 21, and then the flame generated by the combustion of the fuel in the pre-combustion chamber 21 can enter the main combustion chamber 13, ignite the fuel in the main combustion chamber 13, and increase the combustion speed of the fuel in the main combustion chamber 13.

[0062] In some embodiments, a support ring protrusion 232 is formed on the outer peripheral wall of the rotating portion 23, a downwardly recessed mounting groove 121 is formed on the top of the cylinder head 12, a through hole 122 is provided on the bottom wall of the mounting groove 121, the support ring protrusion 232 is supported in the mounting groove 121, and the bottom of the rotating portion 23 passes through the through hole 122 and extends into the main combustion chamber 13.

[0063] Specifically, a support ring protrusion 232 can be formed on the outer peripheral wall of the rotating part 23. The support ring protrusion 232 is configured to extend radially outward from the outer peripheral wall of the rotating part 23 and can be used to install the rotating part 23. At the same time, a mounting groove 121 is formed on the top of the cylinder head 12. The mounting groove 121 is used to provide a mounting position for the rotating part 23, and the mounting groove 121 is recessed downward from the surface of the cylinder head 12 so that the support ring protrusion 232 can be embedded in the mounting groove 121. The support ring protrusion 232 can be installed through the mounting groove 121. The support is provided to realize the installation of the rotating part 23, and a through hole 122 is provided on the bottom wall of the installation groove 121. The through hole 122 is used to allow the bottom of the rotating part 23 to extend from the outside to the inside of the main combustion chamber 13 through the through hole 122, that is, the bottom of the rotating part 23 can pass through the through hole 122 and extend into the main combustion chamber 13, so as to connect the pre-combustion chamber 21 with the main combustion chamber 13 through the connecting hole 231, so that the flame in the pre-combustion chamber 21 can ignite the fuel in the main combustion chamber 13, thereby increasing the combustion speed of the fuel.

[0064] In some embodiments, the pre-combustion structure 2 is integrally constructed as a rotating portion 23 , and a communicating hole 231 is formed at the bottom of the rotating portion 23 . An ignition structure 25 extending into the pre-combustion chamber 21 is provided at the top of the rotating portion 23 .

[0065] Specifically, the pre-combustion structure 2 can also be constructed as a rotating part 23 as a whole, so that the pre-combustion structure 2 can rotate as a whole relative to the cylinder 1, and a connecting hole 231 can be formed at the bottom of the rotating part 23, and the part of the rotating part 23 with the connecting hole 231 is extended into the main combustion chamber 13 to connect the pre-combustion chamber 21 with the main combustion chamber 13 through the connecting hole 231, and an ignition structure 25 can be provided on the upper part of the rotating part 23 to realize the installation of the ignition structure 25, and the ignition structure 25 is extended into the pre-combustion chamber 21, so that the ignition structure 25 can ignite the fuel in the pre-combustion chamber 21, and then the flame generated by the combustion of the fuel in the pre-combustion chamber 21 can enter the main combustion chamber 13 through the connecting hole 231 to ignite the fuel in the main combustion chamber 13, and the rotation of the rotating part 23 can increase the space swept by the flame entering the main combustion chamber 13, thereby accelerating the combustion of the fuel in the main combustion chamber 13 and improving the combustion speed of the fuel.

[0066] And, it should be noted that, Figure 1 As shown, an exhaust pipe 6 and a piston 7 are also provided in the engine assembly 100. The exhaust pipe 6 is used to discharge the exhaust gas generated by the combustion of fuel, and the piston 7 is used to convert the heat energy generated by the combustion of fuel into mechanical energy to provide power for the vehicle.

[0067] The present invention also provides a vehicle.

[0068] A vehicle according to an embodiment of the present invention is provided with any of the above-described engine assemblies 100. By providing a pre-combustion structure 2 in the cylinder head 12, a portion of the fuel can first be burned in the pre-combustion chamber 21. The resulting flame can then enter the main combustion chamber 13 through the connecting hole 231, igniting the fuel in the main combustion chamber 13 and increasing the combustion rate of the fuel in the main combustion chamber 13. Furthermore, by configuring at least a portion of the pre-combustion structure 2 as a rotating portion 23, the rotation of the rotating portion 23 increases the space swept by the flame entering the main combustion chamber 13, further increasing the combustion rate of the fuel in the main combustion chamber 13, improving the thermal efficiency of the engine, reducing the engine's energy consumption, and facilitating the discharge of residual exhaust gas from the pre-combustion chamber 21.

[0069] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0070] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An engine assembly, characterized in that: include: A cylinder (1), the cylinder (1) comprising a cylinder body (11) and a cylinder head (12), the cylinder head (12) being connected to the cylinder body (11) and jointly defining a main combustion chamber (13); A pre-combustion structure (2) is installed on the cylinder head (12), a pre-combustion chamber (21) is defined in the pre-combustion structure (2), at least a portion of the pre-combustion structure (2) is configured as a rotating portion (23), the rotating portion (23) is formed with a connecting hole (231), the connecting hole (231) is used to connect the main combustion chamber (13) with the pre-combustion chamber (21), the rotation axis of the rotating portion (23) coincides with or is parallel to the axis of the main combustion chamber (13), and the connecting hole (231) is spaced apart from the rotation axis of the rotating portion (23).

2. The engine assembly according to claim 1, characterized in that: It also includes a control module (3), the control module (3) is used to obtain the engine speed, and the control module (3) is suitable for controlling the rotation of the rotating part (23) according to the engine speed; The rotation speed of the rotating part (23) is V1, the engine rotation speed is V2, and the following relationship is satisfied: V1 / V2≤0.

1.

3. The engine assembly according to claim 2, characterized in that: It also includes a driving structure (4), which is connected to the rotating part (23), and the control module (3) is electrically connected to the driving structure (4) and is used to control the driving structure (4) to drive the rotating part (23) to rotate.

4. The engine assembly according to claim 3, characterized in that: The driving structure (4) comprises a driving motor (41) and a driving gear (42); the driving motor (41) is electrically connected to the control module (3); a driven gear (24) is provided on the outer peripheral wall of the rotating part (23); the driving gear (42) is meshed with the driven gear (24); and the driving motor (41) drives the rotating part (23) to rotate via the driving gear (42) and the driven gear (24).

5. The engine assembly according to claim 4, characterized in that: The axis of the motor shaft of the driving motor (41) is parallel to and spaced from the axis of the rotating portion (23), and the driving gear (42) is fixedly sleeved outside the motor shaft.

6. The engine assembly according to claim 2, characterized in that: The air intake pipe (5) of the engine is provided with an air intake throttle valve (51), and the control module (3) is used to drive the air intake throttle valve (51) to rotate so as to open or close the air intake pipe (5); And / or, the pre-combustion structure (2) is further provided with an ignition structure (25), and the control module (3) is used to control the ignition structure (25) to ignite the gas in the pre-combustion chamber (21).

7. The engine assembly according to claim 1, characterized in that: It also includes a reduction gear set and a transmission chain, wherein the outer peripheral wall of the rotating part (23) is provided with a driven gear (24), and the reduction gear set includes a plurality of reduction gears that are sequentially connected in power, one of the plurality of reduction gears is an input gear and another one is an output gear, the input gear is connected to the engine crankshaft in power through a transmission chain, and the output gear is engaged with the driven gear (24) to drive the rotating part (23) to rotate; The rotation speed of the rotating part (23) is V1, the rotation speed of the engine crankshaft is V3, and the following relationship is satisfied: V1 / V3≤0.

1.

8. The engine assembly according to claim 1, characterized in that: There are a plurality of communicating holes (231), and the plurality of communicating holes (231) are spaced apart and distributed on the peripheral wall of the pre-combustion chamber (21) around the axis of the rotating portion (23).

9. The engine assembly according to claim 1, characterized in that: The pre-combustion structure (2) includes a main body (22) and a rotating part (23), wherein the rotating part (23) is connected to the bottom of the main body (22) and together defines the pre-combustion chamber (21), the main body (22) is fixedly mounted above the cylinder head (12), the rotating part (23) is rotatably supported on the cylinder head (12), and the portion of the rotating part (23) provided with the connecting hole (231) extends into the main combustion chamber (13), and the main body (22) is provided with an ignition structure (25) extending into the pre-combustion chamber (21).

10. The engine assembly according to claim 9, characterized in that: The outer peripheral wall of the rotating part (23) is formed with a supporting ring protrusion (232), the top of the cylinder head (12) is formed with a downwardly concave mounting groove (121), the bottom wall of the mounting groove (121) is provided with a through hole (122), the supporting ring protrusion (232) is supported in the mounting groove (121), and the bottom of the rotating part (23) passes through the through hole (122) and extends into the main combustion chamber (13).

11. The engine assembly according to claim 1, characterized in that: The pre-combustion structure (2) is integrally constructed as the rotating portion (23), and the bottom of the rotating portion (23) is formed with the communicating hole (231), and the upper portion of the rotating portion (23) is provided with an ignition structure (25) extending into the pre-combustion chamber (21).

12. A vehicle, characterized in that: An engine assembly according to any one of claims 1 to 11 is provided.

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