Cylinder assembly, engine and vehicle

Abstract

The invention discloses an air cylinder assembly, an engine and a vehicle. The cylinder assembly is used for an engine. The cylinder assembly includes a cylinder head, a cylinder head cover, and a seal. Wherein the cylinder head cover is connected with the cylinder head; the sealing piece comprises a body and sealing ribs, the body comprises a first contact face, a second contact face and an end face, the sealing ribs are arranged on the first contact face, the second contact face and the end face, the first contact face makes contact with the cylinder head through the sealing ribs, the second contact face makes contact with the cylinder head cover through the sealing ribs, and the end face makes contact with the cylinder head cover through the sealing ribs. The sealing piece is hermetically connected with the cylinder head and the cylinder head cover. The high-pressure fuel pump is arranged on the air cylinder cover below the oil level line of the engine oil cavity, the requirement for miniaturization of a vehicle is met, meanwhile, the sealing piece is arranged between the air cylinder cover and the air cylinder cover, and therefore the sealing performance of the high-pressure fuel pump arranged at the position below the oil level line of the oil cavity can be guaranteed, and oil leakage between the air cylinder cover and the air cylinder cover is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of engines, and more particularly, to a cylinder assembly, an engine, and a vehicle. Background Art

[0002] In related technology, a vehicle's high-pressure fuel pump provides high-pressure fuel to the vehicle's engine. While typically located above the oil level in the engine's oil chamber, this pump can be positioned below the oil level in the cylinder's oil chamber to accommodate vehicle miniaturization. However, this can easily lead to oil leakage between the cylinder head and cylinder head cover. Summary of the Invention

[0003] The embodiments of the present application provide a cylinder assembly, an engine, and a vehicle that can solve or improve the technical problem of oil leakage between the cylinder head and the cylinder head cover when the high-pressure fuel pump is arranged below the oil level line of the oil chamber of the cylinder.

[0004] A cylinder assembly according to an embodiment of the present application includes a cylinder head, a cylinder head cover, and a seal. The cylinder head cover is connected to the cylinder head; the seal includes a main body and a sealing rib, the main body including a first contact surface, a second contact surface, and an end surface; the sealing rib is disposed on the first contact surface, the second contact surface, and the end surface; the first contact surface contacts the cylinder head via the sealing rib, the second contact surface contacts the cylinder head cover via the sealing rib, and the end surface contacts the cylinder head cover via the sealing rib; the seal seals the cylinder head and the cylinder head cover.

[0005] In this way, by arranging the high-pressure fuel pump on the cylinder head below the oil level line of the engine oil chamber, a seal is provided between the cylinder head cover and the cylinder head while meeting the demand for miniaturization of the vehicle. This ensures the sealing of the high-pressure fuel pump when it is arranged below the oil level line of the oil chamber, thereby avoiding oil leakage between the cylinder head and the cylinder head cover.

[0006] In some embodiments, the cylinder head includes a mounting portion, and the cylinder head cover includes a sealing portion, the mounting portion protrudes from a plane on the cylinder head connected to the cylinder head cover, the sealing portion is recessed into a plane on the cylinder head cover connected to the cylinder head, the mounting portion is cooperatively connected to the sealing portion, the sealing member is clamped between the mounting portion and the sealing portion, and the mounting portion is suitable for installing an oil pump.

[0007] Thus, by providing a mounting portion on the cylinder head, a location for the oil pump can be provided. By providing a sealing portion on the cylinder head cover, a location for the sealing portion can be provided. Furthermore, the mounting portion and the sealing portion can be matingly connected, so that the sealing portion can seal the mounting portion, preventing oil leakage caused by the oil pump being installed on the mounting portion.

[0008] In some embodiments, the mounting portion is provided with a first mounting hole, the sealing portion is provided with a second mounting hole, the main body is provided with a third mounting hole, and the cylinder assembly includes a fastener, which passes through the second mounting hole, the third mounting hole and the first mounting hole in sequence to connect the mounting portion, the sealing portion and the sealing portion.

[0009] In this way, by providing mounting holes on the mounting portion, the sealing member and the sealing member, the fasteners can sequentially pass through the mounting holes, thereby strengthening the connection between the mounting portion and the sealing member, and further fixing the connection between the cylinder head and the cylinder head cover.

[0010] In certain embodiments, the sealing portion is provided with a sealing groove, the opening of the sealing groove faces the mounting portion, and the sealing groove accommodates the sealing member.

[0011] Thus, by providing a sealing groove in the sealing portion, the seal is accommodated in the sealing groove, thereby providing a stable installation position for the seal and preventing it from shifting or falling off during operation. Furthermore, the design of the sealing groove allows the seal to fit more tightly against the sealing portion, thereby increasing the contact area between the seal and the sealing portion, helping to reduce leakage paths and improve the sealing effect.

[0012] In some embodiments, the sealing groove includes a first groove and a second groove, the first groove is located at both ends of the sealing groove, the second groove is located in the middle of the sealing groove, the first groove portion is a square groove, and the second groove includes an annular groove, and the annular groove is arranged around the second mounting hole.

[0013] Thus, by designing the first groove of the sealing groove as a square groove, a support function can be provided for the sealing member accommodated in the first groove, thereby ensuring the sealing reliability of the sealing member. By providing the second groove around the second hole, the sealing performance of the second hole can be ensured.

[0014] In some embodiments, the mounting portion is provided with a fourth mounting hole, the cylinder head is provided with a receiving groove, the fourth mounting hole passes through the mounting portion and is connected to the receiving groove, and the fourth mounting hole is suitable for installing the oil pump so that the oil pump passes through the fourth mounting hole and partially extends into the receiving groove.

[0015] In this way, by opening the fourth mounting hole on the mounting portion, the oil pump can be installed in the fourth mounting hole and extend into the receiving groove of the cylinder head, so that the oil pump can be connected to the components in the receiving groove while being fixed.

[0016] In some embodiments, the mounting portion includes a guide groove, which is arranged on the inner wall of the fourth mounting hole. The oil pump includes a guide block, which is arranged on the outside of the oil pump. The guide block is used to extend into the guide groove to guide the axial movement of the oil pump.

[0017] In this way, by providing a guide block on the oil pump and providing a guide groove on the inner wall of the fourth mounting hole, the oil pump can be guided when performing reciprocating motion in the fourth mounting hole, thereby preventing the oil pump from rotating circumferentially.

[0018] In certain embodiments, the mounting portion includes an oil filling hole, a lubrication groove, and an oil drain hole provided on the wall of the fourth mounting hole, and the oil filling hole and the oil drain hole are connected through the lubrication groove.

[0019] In this way, by arranging an oil filling hole, a lubrication groove and an oil drain hole on the hole wall of the fourth mounting hole, the lubricating oil can enter the fourth mounting hole, so that the oil pump provides lubrication when the fourth mounting hole moves, reducing the direct contact between the oil pump and the fourth mounting hole, thereby reducing the friction coefficient between the oil pump and the fourth mounting hole, reducing the wear of the oil pump, and improving the working efficiency and service life of the oil pump.

[0020] In certain embodiments, the cylinder assembly includes a camshaft, the camshaft is disposed in the accommodating groove, and the camshaft is adapted to be connected to the oil pump to drive the oil pump to move.

[0021] In this way, by arranging the camshaft in the accommodating groove and enabling the camshaft to be connected to the oil pump, the camshaft can provide power for the oil pump to move axially.

[0022] In some embodiments, the main body includes a third contact surface, which is suitable for connecting with the cylinder head cover. The seal also includes a limiting rib, which is arranged on the third contact surface, and the limiting rib fixes the seal between the cylinder head and the cylinder head cover.

[0023] In this way, by providing the limiting ribs on the third contact surface of the sealing member, the fixation of the sealing member between the cylinder head and the cylinder head cover can be further strengthened.

[0024] In certain embodiments, the cylinder head cover includes a sealing portion, the sealing portion includes a sealing groove, and the sealing member abuts against a side wall of the sealing groove through the limiting rib to fix the sealing member in the sealing groove.

[0025] In this way, by providing the limiting ribs on the sealing member, the sealing member can abut against the sealing groove through the limiting ribs, thereby strengthening the fixation of the sealing member in the sealing groove.

[0026] An engine according to an embodiment of the present application includes the cylinder assembly as described in any one of the above embodiments.

[0027] A vehicle according to an embodiment of the present application includes the engine as described in the above embodiment.

[0028] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 is a schematic structural diagram of a vehicle according to certain embodiments of the present application;

[0031] Figure 2 is a schematic structural diagram of a cylinder assembly according to certain embodiments of the present application;

[0032] Figure 3 is a schematic structural diagram of a seal according to certain embodiments of the present application;

[0033] Figure 4 It is a schematic structural diagram of a cylinder head cover according to certain embodiments of the present application.

[0034] Description of Figure Numbers:

[0035] 1000, vehicle; 100, engine; 10, cylinder assembly; 11, cylinder head; 111, mounting portion; 1111, first mounting hole; 1112, fourth mounting hole; 1113, guide groove; 1114, oil filling hole; 1115, lubrication groove; 1116, oil drain hole; 112, receiving groove; 12, cylinder head cover; 121, sealing portion; 1211, second mounting hole; 1212, sealing Groove; 12121, first groove; 12122, second groove; 13, seal; 131, main body; 1311, first contact surface; 1312, second contact surface; 1313, end surface; 1314, third mounting hole; 1315, third contact surface; 132, sealing rib; 133, limiting rib; 14, fastener; 15, camshaft; 20, oil pump; 21, guide block; 22, roller tappet. DETAILED DESCRIPTION

[0036] The following describes in detail embodiments of the present application. 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 only used to explain the present application and are not to be construed as limiting the present application.

[0037] In the description of this application, 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", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting this application. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections. They can refer to mechanical connections or electrical connections. They can refer to direct connections or indirect connections through an intermediary. They can refer to internal communication between two components or interactions between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] The disclosure herein provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0041] See also Figure 1 、 Figure 2 and Figure 3 A cylinder assembly 10 according to an embodiment of the present application includes a cylinder head 11, a cylinder head cover 12, and a seal 13. The cylinder head cover 12 is connected to the cylinder head 11; the seal 13 includes a main body 131 and a sealing rib 132. The main body 131 includes a first contact surface 1311, a second contact surface 1312, and an end surface 1313. The sealing rib 132 is provided on the first contact surface 1311, the second contact surface 1312, and the end surface 1313. The first contact surface 1311 contacts the cylinder head 11 through the sealing rib 132, the second contact surface 1312 contacts the cylinder head cover 12 through the sealing rib 132, and the end surface 1313 contacts the cylinder head cover 12 through the sealing rib 132. The seal 13 seals and connects the cylinder head 11 and the cylinder head cover 12.

[0042] In this way, by setting the oil pump 20 on the cylinder head 11 below the oil level line of the oil chamber of the engine 100, the demand for miniaturization of the vehicle 1000 is met while a seal 13 is set between the cylinder head cover 12 and the cylinder head 11, thereby ensuring the sealing of the oil pump 20 when it is arranged below the oil level line of the oil chamber, and avoiding oil leakage between the cylinder head 11 and the cylinder head cover 12.

[0043] The vehicle 1000 includes an engine 100, which serves as a power source for the vehicle 1000 and is responsible for converting the chemical energy of fuel into mechanical energy to drive the vehicle. The engine 100 of the vehicle 1000 may be a horizontally opposed engine, an in-line engine, or a V-type engine.

[0044] The engine 100 includes a cylinder assembly 10, which can compress or expand gas or liquid through changes in its volume, thereby generating power for the engine 100. For example, the cylinder assembly 10 can convert the chemical energy of the fuel into thermal energy, which is then further converted into mechanical energy, thereby providing power for the vehicle 1000 to travel.

[0045] Cylinder assembly 10 includes a cylinder head 11, a cylinder head cover 12, and a seal 13. Cylinder head 11 seals the upper portion of the cylinder, thereby securing the combustion chamber of engine 100. Cylinder head 11 also provides necessary protection for cylinder assembly 10, preventing the high-temperature, high-pressure gases generated during combustion from expanding directly outward. It also prevents external dust and moisture from entering cylinder assembly 10, ensuring the proper operation of engine 100.

[0046] The cylinder head cover 12 can be connected to the cylinder head 11. For example, the cylinder head cover 12 and the cylinder head 11 can be sealed by a sealing medium, wherein the sealing medium can be a sealant or a rubber sealing strip. Thus, the cylinder head cover 12 can tightly cover and seal the cylinder head 11, ensuring that the engine oil inside the engine 100 remains clean and isolating external contaminants such as dirt and moisture from entering the engine 100.

[0047] The seal 13 is disposed between the cylinder head 11 and the cylinder head cover 12, and is used to seal the cylinder head 11 and the cylinder head cover 12. The seal 13 may be a rubber sealing strip or a rubber sealing ring. The seal 13 includes a main body 131 and a sealing rib 132. The main body 131 is shaped like a long rectangular strip, and the sealing rib 132 is a ribbed line provided on the main body 131.

[0048] The main body 131 includes a first contact surface 1311, a second contact surface 1312 and an end surface 1313. Figure 3 As shown, the first contact surface 1311 is the top surface of the main body 131, the second contact surface 1312 is the bottom surface of the main body 131, and the end surface 1313 is the end surface 1313 at both ends of the main body 131, and the sealing rib 132 can cover the first contact surface 1311, the second contact surface 1312 and the end surface 1313, so that the first contact surface 1311 can contact the cylinder head 11 through the sealing rib 132, the second contact surface 1312 can contact the cylinder head cover 12 through the sealing rib 132, and the end surface 1313 can contact the cylinder head cover 12 through the sealing rib 132, so that the seal 13 can simultaneously connect the cylinder head 11 and the cylinder head cover 12, and seal the cylinder head 11 and the cylinder head cover 12.

[0049] See also Figure 2 In some embodiments, the cylinder head 11 includes a mounting portion 111, and the cylinder head cover 12 includes a sealing portion 121. The mounting portion 111 protrudes from a plane on the cylinder head 11 connected to the cylinder head cover 12, and the sealing portion 121 is recessed into a plane on the cylinder head cover 12 connected to the cylinder head 11. The mounting portion 111 and the sealing portion 121 are cooperatively connected, and the seal 13 is clamped between the mounting portion 111 and the sealing portion 121. The mounting portion 111 is suitable for mounting the oil pump 20.

[0050] Thus, by providing the mounting portion 111 on the cylinder head 11, a mounting location for the oil pump 20 can be provided. By providing the sealing portion 121 on the cylinder head cover 12, a location for the sealing portion 121 can be fixed. Furthermore, the mounting portion 111 and the sealing portion 121 can be mated and connected, so that the sealing portion 121 can seal the mounting portion 111, preventing oil leakage caused by the oil pump 20 being installed on the mounting portion 111.

[0051] Specifically, the cylinder head 11 includes a mounting portion 111 for mounting the fuel pump 20. Mounting portion 111 is located on the contact surface of the cylinder head 11 where it connects to the cylinder head cover 12, and projects outward from the contact surface toward the cylinder head cover 12, forming an arched projection. The fuel pump 20 may be a high-pressure fuel pump that draws fuel from the fuel tank and pressurizes it, allowing it to be more efficiently injected into the engine 100 and ensuring sufficient combustion.

[0052] The cylinder head cover 12 includes a sealing portion 121, which is adapted to receive the seal 13. The sealing portion 121 is disposed on the contact surface of the cylinder head cover 12 where the cylinder head 11 and the cylinder head cover 12 meet, and is recessed toward the cylinder head 11, forming an arched, concave shape. The shape of the sealing portion 121 is compatible with the shape of the mounting portion 111, enabling a mating connection between the mounting portion 111 and the sealing portion 121.

[0053] The seal 13 is sandwiched between the mounting portion 111 and the seal 13. For example, the seal 13 can be disposed on the sealing portion 121, the seal 13 can be disposed on the mounting portion 111, or half of the seal 13 can be disposed on the sealing portion 121 and the other half on the mounting portion 111. This allows the seal 13 to seal the gap between the mounting portion 111 and the sealing portion 121.

[0054] In some embodiments, the mounting portion 111 and the sealing portion 121 may be connected via a sealant 13 , and other contact surfaces between the cylinder head 11 and the cylinder head cover 12 may be sealed via sealant or sealing strips.

[0055] See also Figure 2 In some embodiments, the mounting portion 111 is provided with a first mounting hole 1111, the sealing portion 121 is provided with a second mounting hole 1211, the main body 131 is provided with a third mounting hole 1314, and the cylinder assembly 10 includes a fastener 14, which passes through the second mounting hole 1211, the third mounting hole 1314 and the first mounting hole 1111 in sequence to connect the mounting portion 111, the sealing portion 13 and the sealing portion 121.

[0056] In this way, by providing mounting holes on the mounting portion 111, the sealing portion 13 and the sealing portion 121, the fastener 14 can pass through the mounting holes in sequence, thereby strengthening the connection between the mounting portion 111 and the sealing portion 121, and further fixing the connection between the cylinder head 11 and the cylinder head cover 12.

[0057] Specifically, the mounting portion 111 is provided with a first mounting hole 1111, the sealing portion 121 is provided with a second mounting hole 1211, and the main body 131 is provided with a third mounting hole 1314. The number of the first mounting hole 1111, the second mounting hole 1211, and the third mounting hole 1314 is the same and can be multiple. For example, the number of the first mounting hole 1111, the second mounting hole 1211, and the third mounting hole 1314 can all be 3, 5, etc. Furthermore, the relative positions of the first mounting hole 1111, the second mounting hole 1211, and the third mounting hole 1314 are located on the same vertical plane. For example, the third mounting hole 1314 can be located at both ends and the middle of the main body 131 on the sealing member 13, so that the first mounting hole 1111 is correspondingly provided on the mounting portion 111, and the second mounting hole 1211 is correspondingly provided on the sealing portion 121. Thus, the fastener 14 included in the cylinder assembly 10 can sequentially penetrate the second mounting hole 1211, the third mounting hole 1314 and the first mounting hole 1111 to connect the mounting portion 111, the sealing member 13 and the sealing portion 121. The fastener 14 can be a bolt.

[0058] See also Figure 2 and Figure 4 In some embodiments, the sealing portion 121 is provided with a sealing groove 1212 , the notch of the sealing groove 1212 faces the mounting portion 111 , and the sealing groove 1212 accommodates the sealing member 13 .

[0059] Thus, by providing a sealing groove 1212 in the sealing portion 121, the seal 13 is accommodated in the sealing groove 1212, thereby providing a stable installation position for the seal 13 and preventing it from shifting or falling off during operation. Furthermore, the design of the sealing groove 1212 allows the seal 13 to fit more closely against the sealing portion 121, thereby increasing the contact area between the seal 13 and the sealing portion 121, helping to reduce leakage paths and improve the sealing effect.

[0060] Specifically, the sealing portion 121 is further provided with a sealing groove 1212. The sealing groove 1212 is configured to accommodate the sealing member 13. The sealing groove 1212 is adapted to the arched, concave structure of the sealing portion 121. The size and shape of the sealing groove 1212 also match the size and shape of the sealing member 13. For example, when the sealing member 13 is in the shape of an elongated strip, the sealing groove 1212 is also in the shape of an elongated strip. This allows the sealing member 13 to be secured within the sealing groove 1212. The notch of the sealing groove 1212 faces the mounting portion 111, enabling the mounting portion 111 to connect with the sealing member 13.

[0061] In some embodiments, the sealing groove 1212 can be provided on the mounting portion 111 , with the notch of the sealing groove 1212 facing the sealing portion 121 , so that the sealing portion 121 can be connected to the sealing member 13 accommodated in the sealing groove 1212 .

[0062] In some embodiments, the sealing groove 1212 can be respectively provided on the mounting portion 111 and the sealing portion 121 , and the seal 13 can be simultaneously accommodated in the sealing groove 1212 on the mounting portion 111 and the sealing portion 121 , so that the mounting portion 111 and the sealing portion 121 can be sealed.

[0063] See also Figure 4 In some embodiments, the sealing groove 1212 includes a first groove 12121 and a second groove 12122. The first groove 12121 is located at both ends of the sealing groove 1212, and the second groove 12122 is located in the middle of the sealing groove 1212. The first groove 12121 is a square groove, and the second groove 12122 includes an annular groove, which is arranged around the second mounting hole 1211.

[0064] Thus, by designing the first groove 12121 of the sealing groove 1212 as a square groove, a support function can be provided for the sealing member 13 accommodated in the first groove 12121, thereby ensuring the sealing reliability of the sealing member 13. By providing the second groove 12122 around the second hole, the sealing performance of the second hole can be ensured.

[0065] Specifically, the sealing groove 1212 includes a first groove 12121 and a second groove 12122. The first groove 12121 is located at both ends of the sealing groove 1212 and is shaped as a square groove. The second groove 12122 is located in the middle of the sealing groove 1212 and is shaped as an annular groove, so that the annular groove can be arranged around the second mounting hole 1211 and the third mounting hole 1314.

[0066] See also Figure 2 In some embodiments, the mounting portion 111 is provided with a fourth mounting hole 1112, and the cylinder head 11 is provided with a receiving groove 112. The fourth mounting hole 1112 passes through the mounting portion 111 and is connected with the receiving groove 112. The fourth mounting hole 1112 is suitable for installing the oil pump 20, so that the oil pump 20 passes through the fourth mounting hole 1112 and partially extends into the receiving groove 112.

[0067] In this way, by opening the fourth mounting hole 1112 on the mounting portion 111, the oil pump 20 can be installed in the fourth mounting hole 1112 and extend into the receiving groove 112 of the cylinder head 11, so that the oil pump 20 can be connected to the components in the receiving groove 112 while being fixed.

[0068] Specifically, a fourth mounting hole 1112 is provided on the mounting portion 111, and the fourth mounting hole 1112 is arranged on the side where the mounting portion 111 is connected to the contact surface. The shape and size of the fourth mounting hole 1112 can be adapted to the shape and size of the oil pump 20, so that the fourth mounting hole 1112 can be used to install the oil pump 20.

[0069] The cylinder head 11 defines a receiving groove 112 for accommodating components of the cylinder assembly 10. Thus, the fourth mounting hole 1112 can be formed through the mounting portion 111, and the oil pump 20 mounted on the fourth mounting hole 1112 can extend into the receiving groove 112, thereby enabling the oil pump 20 to connect with other components within the receiving groove 112.

[0070] See also Figure 2 In some embodiments, the mounting portion 111 includes a guide groove 1113, which is arranged on the inner wall of the fourth mounting hole 1112. The oil pump 20 includes a guide block 21, which is arranged on the outside of the oil pump 20. The guide block 21 is used to extend into the guide groove 1113 to guide the axial movement of the oil pump 20.

[0071] In this way, by setting a guide block 21 on the oil pump 20 and setting a guide groove 1113 on the inner wall of the fourth mounting hole 1112, the oil pump 20 can be guided when performing reciprocating motion in the fourth mounting hole 1112, thereby preventing the oil pump 20 from rotating circumferentially.

[0072] Specifically, the mounting portion 111 is further provided with a guide groove 1113 that can guide the movement of the oil pump 20. The guide groove 1113 is provided on the inner wall of the fourth mounting hole 1112, and the direction in which the guide groove 1113 extends is parallel to the axial direction of the fourth mounting hole 1112.

[0073] The oil pump 20 also includes a guide block 21, which is disposed on the outer sidewall of the oil pump 20 and protrudes from the outer side of the oil pump 20. The width of the guide block 21 matches the width of the guide groove 1113, allowing the guide block 21 to extend into the guide groove 1113. The length of the guide block 21 is shorter than the length of the guide groove 1113, allowing the guide block 21 to slide within the guide groove 1113.

[0074] When the oil pump 20 is in working condition, the oil pump 20 can be guided to run axially along the axis in the fourth mounting hole 1112 through the guidance of the guide block 21 and the guide groove 1113, thereby preventing the oil pump 20 from performing circumferential movement in the fourth mounting hole 1112.

[0075] See also Figure 2In some embodiments, the mounting portion 111 includes an oil filling hole 1114 , a lubrication groove 1115 and an oil drain hole 1116 provided on the wall of the fourth mounting hole 1112 , and the oil filling hole 1114 and the oil drain hole 1116 are connected through the lubrication groove 1115 .

[0076] In this way, by arranging the oil filling hole 1114, the lubrication groove 1115 and the oil drain hole 1116 on the hole wall of the fourth mounting hole 1112, the lubricating oil can enter the fourth mounting hole 1112, so that the oil pump 20 provides lubrication when the fourth mounting hole 1112 moves, reducing the direct contact between the oil pump 20 and the fourth mounting hole 1112, thereby reducing the friction coefficient between the oil pump 20 and the fourth mounting hole 1112, reducing the wear of the oil pump 20, and improving the working efficiency and service life of the oil pump 20.

[0077] Specifically, the mounting portion 111 is further provided with an oil filling hole 1114, a lubrication groove 1115, and an oil drain hole 1116. The lubrication groove 1115 is provided on the wall of the fourth mounting hole 1112 and is arranged around the axis of the fourth mounting hole 1112. The oil filling hole 1114 and the oil drain hole 1116 are provided in the lubrication groove 1115, and the oil filling hole 1114 and the oil drain hole 1116 are symmetrically arranged in the annular lubrication groove 1115.

[0078] The oil filling hole 1114 allows the lubricating oil to enter the lubricating groove 1115. The lubricating groove 1115 can provide lubrication to the oil pump 20 when the oil pump 20 moves axially to reduce the friction between the oil pump 20 and the mounting portion 111. The oil drain hole 1116 can discharge the excess lubricating oil in the lubricating groove 1115 in time to avoid affecting the normal operation of the oil pump 20.

[0079] See also Figure 2 In some embodiments, the cylinder assembly 10 includes a camshaft 15 , which is disposed in the receiving groove 112 . The camshaft 15 is adapted to be connected to the oil pump 20 to drive the oil pump 20 to move.

[0080] In this way, by arranging the camshaft 15 in the receiving groove 112 and enabling the camshaft 15 to be connected to the oil pump 20 , the camshaft 15 can provide power for the oil pump 20 to move axially.

[0081] Specifically, the cylinder assembly 10 further includes a camshaft 15, which is disposed within the receiving groove 112 near the mounting portion 111. The camshaft 15 can be connected to the oil pump 20 via a transmission mechanism. For example, the oil pump 20 includes a roller tappet 22. The camshaft 15 can be connected to the roller tappet 22 via a screw, driving the roller tappet 22 to perform linear reciprocating motion. Thus, while the camshaft 15 itself rotates, it can also drive the oil pump 20 to perform axial motion within the fourth mounting hole 1112, allowing the oil pump 20 to draw fuel from the fuel tank and pressurize it, allowing the fuel to be more efficiently injected into the engine 100, ensuring sufficient combustion of the fuel.

[0082] See also Figure 3 In some embodiments, the main body 131 includes a third contact surface 1315, which is suitable for connecting with the cylinder head cover 12. The seal 13 also includes a limiting rib 133, which is arranged on the third contact surface 1315. The limiting rib 133 fixes the seal 13 between the cylinder head 11 and the cylinder head cover 12.

[0083] In this way, by providing the limiting ribs 133 on the third contact surface 1315 of the sealing member 13 , the fixation of the sealing member 13 between the cylinder head 11 and the cylinder head cover 12 can be further strengthened.

[0084] Specifically, the main body 131 of the sealing member 13 further includes a third contact surface 1315, such as Figure 1 As shown, the third contact surface 1315 may be two side surfaces of the main body 131. The seal 13 includes limiting ribs 133, which can be used to secure the seal 13 within the sealing groove 1212. The limiting ribs 133 are provided on the third contact surface 1315, and there may be multiple limiting ribs 133, each of which is spaced apart from each other. The seal 13 can abut against the sidewalls of the sealing groove 1212 via the limiting ribs 133, thereby providing sufficient radial force to secure the main body 131 within the sealing groove 1212, thereby securing the seal 13 between the cylinder head 11 and the cylinder head cover 12.

[0085] It should be noted that limiting ribs 133 are provided at intervals on the inner wall of the second slot 12122 so that the main body 131 can be fixed to the second mounting hole 1211 .

[0086] In the description of this specification, the reference terms "certain embodiments", "in an example", "exemplarily", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent.

[0087] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are optional and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A cylinder assembly for an engine, characterized in that: The cylinder assembly comprises: cylinder head; a cylinder head cover connected to the cylinder head; A sealing member comprising a main body and a sealing rib, wherein the main body comprises a first contact surface, a second contact surface and an end surface, the sealing rib being arranged on the first contact surface, the second contact surface and the end surface, the first contact surface being in contact with the cylinder head through the sealing rib, the second contact surface being in contact with the cylinder head cover through the sealing rib, the end surface being in contact with the cylinder head cover through the sealing rib, and the sealing member sealingly connecting the cylinder head and the cylinder head cover.

2. The cylinder assembly according to claim 1, characterized in that The cylinder head includes a mounting portion, and the cylinder head cover includes a sealing portion. The mounting portion protrudes from a plane on the cylinder head connected to the cylinder head cover, and the sealing portion is recessed into a plane on the cylinder head cover connected to the cylinder head. The mounting portion is cooperatively connected to the sealing portion, and the sealing member is clamped between the mounting portion and the sealing portion. The mounting portion is suitable for installing an oil pump.

3. The cylinder assembly according to claim 2, characterized in that The mounting portion is provided with a first mounting hole, the sealing portion is provided with a second mounting hole, the main body is provided with a third mounting hole, and the cylinder assembly includes a fastener, which passes through the second mounting hole, the third mounting hole and the first mounting hole in sequence to connect the mounting portion, the sealing portion and the sealing portion.

4. The cylinder assembly according to claim 3, characterized in that The sealing portion is provided with a sealing groove, the notch of the sealing groove faces the mounting portion, and the sealing groove accommodates the sealing member.

5. The cylinder assembly according to claim 4, characterized in that The sealing groove includes a first groove and a second groove, the first groove is located at both ends of the sealing groove, the second groove is located in the middle of the sealing groove, the first groove portion is a square groove, the second groove includes an annular groove, and the annular groove is arranged around the second mounting hole.

6. The cylinder assembly according to claim 2, wherein: The mounting portion is provided with a fourth mounting hole, the cylinder head is provided with a receiving groove, the fourth mounting hole passes through the mounting portion and is connected to the receiving groove, and the fourth mounting hole is suitable for installing the oil pump so that the oil pump passes through the fourth mounting hole and partially extends into the receiving groove.

7. The cylinder assembly according to claim 6, characterized in that The mounting portion includes a guide groove, which is arranged on the inner wall of the fourth mounting hole. The oil pump includes a guide block, which is arranged on the outside of the oil pump and is used to extend into the guide groove to guide the axial movement of the oil pump.

8. The cylinder assembly according to claim 6, wherein: The mounting portion includes an oil filling hole, a lubrication groove, and an oil drain hole provided on the wall of the fourth mounting hole, and the oil filling hole and the oil drain hole are communicated with each other through the lubrication groove.

9. The cylinder assembly according to claim 6, wherein: The cylinder assembly includes a camshaft, which is disposed in the accommodating groove and is suitable for connecting to the oil pump to drive the oil pump to move.

10. The cylinder assembly according to claim 1, wherein: The main body includes a third contact surface, which is suitable for connecting with the cylinder head cover. The seal also includes a limiting rib, which is arranged on the third contact surface and fixes the seal between the cylinder head and the cylinder head cover.

11. The cylinder assembly according to claim 10, wherein: The cylinder head cover includes a sealing portion, the sealing portion includes a sealing groove, and the sealing member abuts against a side wall of the sealing groove through the limiting ribs, so that the sealing member is fixed in the sealing groove.

12. An engine, characterized in that: The invention comprises the cylinder assembly according to any one of claims 1 to 11.

13. A vehicle, characterized in that: Including the engine as claimed in claim 12.

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