Sealing element, oil pump, engine and vehicle

Abstract

The utility model provides a sealing element, an oil pump, an engine and a vehicle. The sealing piece comprises a body part and a hanging lug part. The ear hanging part is connected to the body part, and the ear hanging part is provided with a connecting hole. According to the sealing element provided by the utility model, the connecting hole is formed in the hanging lug part, so that the sealing element can be conveniently connected to an external structure, the sealing effect is realized, and the applicability and the stability of the sealing element are improved. And the connecting hole can realize the assembly limiting of the sealing element, and can prevent the sealing element from loosening or falling off in the working process. The hanging lug part is connected with an external structure, the sealing piece can be stably fixed, and sealing failure caused by displacement is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and more particularly to a seal, an oil pump, an engine and a vehicle. Background Art

[0002] When the existing oil pump is assembled with the engine housing, a seal is used to achieve the seal between the oil pump housing and the engine housing. The seal is usually made of rubber or other elastic materials, and during use, deformation or displacement may occur.

[0003] Therefore, there is a need to provide a seal, an oil pump, an engine and a vehicle to at least partially solve the above problems. Summary of the Utility Model

[0004] A series of simplified concepts are introduced in the summary of the utility model, which will be further described in detail in the detailed implementation section. The summary of the utility model does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0005] To at least partially solve the above problems, a first aspect of the present utility model provides a seal, which includes:

[0006] A main body part; and

[0007] A hanging ear part, the hanging ear part is connected to the main body part, and the hanging ear part is provided with a connection hole for connecting to an external structure.

[0008] According to the seal provided by the first aspect of the present utility model, by providing a connection hole in the hanging ear part, the seal can be conveniently connected to an external structure, thereby achieving a sealing effect and improving the applicability and stability of the seal. The connection hole can realize the assembly limit of the seal and prevent it from loosening or falling off during operation. The hanging ear part is connected to the external structure, which can stably fix the seal and avoid seal failure caused by displacement.

[0009] Optionally, the main body part is configured as an arc structure.

[0010] Optionally, the hanging ear part is connected to the end of the main body part.

[0011] Optionally, the cross-sectional shape of the main body part is rectangular.

[0012] Optionally, the main body part and the hanging ear part are of an integrally formed structure.

[0013] A second aspect of the present utility model provides an oil pump, which includes:

[0014] The oil pump housing is provided with a connecting rod;

[0015] For the above-mentioned seal, the connecting hole is connected to the connecting rod, and the inner side of the seal is in contact with the oil pump housing.

[0016] For the oil pump provided according to the second aspect of the present invention, the seal is connected by the connecting rod, so that the inner side of the seal is in contact with the oil pump housing, and the outer side of the seal is in contact with the housing of the engine, thereby achieving good sealing between the oil pump housing and the housing of the engine and effectively preventing oil leakage. In the present invention, the design of connecting the seal by the connecting rod is adopted, and the seal can be pre-installed on the housing of the oil pump, with a simple and reliable structure, easy to manufacture and install, improving production efficiency and product reliability.

[0017] Optionally, the oil pump housing is provided with a first step portion and a second step portion along its axial direction, the radial dimension of the first step portion is larger than the radial dimension of the second step portion, and the seal is in contact with the outer peripheral surface of the second step portion.

[0018] Optionally, a transition surface is formed between the first step portion and the second step portion, and the seal is in contact with the transition surface.

[0019] Optionally, in a cross-section perpendicular to the axial direction, at least part of the connecting rod is coplanar with the second step portion.

[0020] Optionally, along the axial direction, the width of the seal is less than or equal to the width of the second step portion.

[0021] Optionally, the axial direction of the connecting hole is parallel to the axial direction of the oil pump housing.

[0022] Optionally, the diameter of the connecting hole is less than or equal to the diameter of the connecting rod.

[0023] The third aspect of the present invention provides an engine provided with the seal of the above-mentioned oil pump; wherein,

[0024] When the oil pump is installed on the engine, the outer side of the seal is used to be in contact with the housing of the engine to achieve sealing between the oil pump housing and the housing of the engine.

[0025] For the engine provided according to the third aspect of the present invention, the seal can effectively achieve good sealing between the oil pump housing and the engine housing, thereby preventing oil leakage. During installation, the assembly accuracy during connection can be improved, ensuring the accuracy and stability of the connection.

[0026] Optionally, the engine includes a cylinder block and an oil pump. The oil pump is disposed within the cylinder block, and the seal is disposed between the oil pump and the cylinder block.

[0027] Optionally, the cylinder block is provided with an oil storage cavity and a sprocket cavity, and the seal is used to separate the oil storage cavity from the sprocket cavity.

[0028] Optionally, the cylinder block is provided with a stepped baffle, the stepped baffle is matched with the housing of the oil pump, and the outer side of the seal is attached to the stepped baffle.

[0029] Optionally, along the axial direction, the width of the seal is less than or equal to the width of the stepped baffle.

[0030] Optionally, the seal satisfies the following formula:

[0031] C·H S ≥δ 1 ;

[0032] Wherein, C is the deformation rate of the seal; H S is the height of the seal after deformation; δ 1 is the distance of the gap between the housing of the oil pump and the front end of the stepped baffle.

[0033] Optionally, the seal satisfies the following formula:

[0034] C·H S ≥δ 2 ;

[0035] Wherein, C is the deformation rate of the seal; H S is the height of the seal after deformation; δ 2 is the distance of the gap between the housing of the oil pump and the rear end of the stepped baffle.

[0036] The fourth aspect of the present invention provides a vehicle, including the above-mentioned engine.

[0037] According to the vehicle provided by the fourth aspect of the present invention, the vehicle equipped with the above-mentioned engine will have better power performance, lower risk of oil leakage, higher fuel economy and more reliable service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The following drawings of the embodiments of the present invention are hereby incorporated as part of the present invention for understanding the present invention. The embodiments and descriptions thereof shown in the drawings are used to explain the principles of the present invention. In the drawings,

[0039] Figure 1 is a schematic diagram of the seal of a preferred embodiment of the present invention;

[0040] Figure 2 Partial perspective view of an oil pump according to a preferred embodiment of the present utility model;

[0041] Figure 3 is Figure 1 An enlarged view of part A in ;

[0042] Figure 4 Top view of an oil pump according to a preferred embodiment of the present utility model;

[0043] Figure 5 is Figure 4 A sectional view taken along the line B - B in ;

[0044] Figure 6 is Figure 5 An enlarged view of part C in ;

[0045] Figure 7 Perspective view of an oil pump housing according to a preferred embodiment of the present utility model;

[0046] Figure 8 is Figure 7 An enlarged side view of part D in ;

[0047] Figure 9 Perspective view of an engine housing according to a preferred embodiment of the present utility model;

[0048] Figure 10 is Figure 9 An enlarged view of part E in ; and

[0049] Figure 11 Front view of an engine housing according to a preferred embodiment of the present utility model.

[0050] Description of the Reference Numerals

[0051] 100: Oil pump housing

[0052] 110: Connecting rod

[0053] 121: First step portion

[0054] 122: Second step portion

[0055] 123: Transition surface

[0056] 200: Seal

[0057] 210: Body portion

[0058] 220: Hanging ear portion

[0059] 221: Connecting hole

[0060] 300: Engine

[0061] 310: Oil storage chamber

[0062] 320: Sprocket chamber

[0063] 330: Step baffle

[0064] D1: Axial direction Detailed implementation manners

[0065] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the embodiments of the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the embodiments of the present utility model, some technical features well known to those skilled in the art are not described.

[0066] In this article, the ordinal numbers such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component".

[0067] In this article, "up", "down", "front", "rear", "left", "right", etc. are only used to represent the relative positional relationship between relevant parts, rather than defining the absolute positions of these relevant parts.

[0068] In this article, "equal", "same", etc. are not strict mathematical and / or geometric limitations, and also include errors that can be understood by those skilled in the art and are allowed in manufacturing or using, etc.

[0069] Unless otherwise specified, the numerical ranges in this article include not only the entire range within its two endpoints, but also several sub-ranges included therein.

[0070] Refer to Figure 1 The present utility model provides a seal 200. It includes a body part 210 and a hanging ear part 220. The hanging ear part 220 is connected to the body part 210, and the hanging ear part 220 is provided with a connection hole 221. The connection hole 221 is used to connect to an external structure. According to the seal 200 provided by the present utility model, by providing the connection hole 221 in the hanging ear part 220, the seal 200 can be conveniently connected to the external structure, thereby achieving a sealing effect and improving the applicability and stability of the seal. The hanging ear part 220 is connected to the external structure, which can stably fix the seal 200 and avoid seal failure caused by displacement.

[0071] Optionally, the body portion 210 is configured as an arc structure. When the seal 200 is connected to the oil pump, the body portion 210 can fit well with the oil pump.

[0072] Optionally, the hanging ear portion 220 is connected to the end of the body portion 210. That is, the connection holes 221 are provided at both ends of the body portion 210. Setting the connection holes 221 at the ends of the body portion 210 can effectively fix the entire seal 200, so that the body portion 210 and the hanging ear portion 220 are both kept in the correct positions, preventing them from loosening or falling off during operation, and improving the stability and reliability of the seal 200. Optionally, the hanging ear portion 220 is located above the body portion 210, facilitating the installation of the seal 200.

[0073] Optionally, the body portion 210 and the hanging ear portion 220 are of an integrally formed structure.

[0074] Optionally, the extending direction of the connection hole 221 is parallel to the central axis of the body portion 210.

[0075] When the existing oil pump is assembled with the housing of the engine 300, a seal with a U-shaped cross-section is used to achieve the seal between the housing 100 of the oil pump and the housing of the engine 300, and at the same time, the positioning of the seal is realized. One side of the U-shaped seal is an auxiliary installation part and does not participate in the actual seal. From the perspective of the seal design, this technology has redundancy in the seal design.

[0076] Optionally, the seal 200 provided in the above embodiment is used for the assembly of the oil pump and the housing of the engine. Optionally, the cross-sectional shape of the body portion 210 is rectangular. The structure is simpler. On the basis of ensuring its sealing function and installation function, the product structure is further streamlined and the product cost is saved. Optionally, the inner and outer radial sides of the body portion 210 of the seal 200 are respectively in contact with the external structure, and the sealing settings of two sealing surfaces can be realized. Optionally, the inner and outer radial sides and one axial side of the body portion 210 of the seal 200 are in contact with the external structure, and the sealing settings of three sealing surfaces can be realized. Effective sealing can be achieved only through two or three sealing surfaces, reducing the material use of the seal 200, thereby reducing the weight of the seal 200, which is beneficial to improving the power density and energy-saving performance of the overall equipment.

[0077] Refer to Figures 2 - 11, the seal provided by the present utility model is used for an oil pump. The oil pump includes an oil pump housing 100 and a seal 200. The oil pump housing 100 is provided with a connecting rod 110. The connecting hole 221 of the seal 200 is connected to the connecting rod 110, and the inner side of the seal 200 is in contact with the oil pump housing 100. Wherein, in the state where the oil pump is installed on the engine 300, the outer side of the seal 200 is used to be in contact with the housing of the engine 300 to achieve the seal between the oil pump housing 100 and the housing of the engine 300. By connecting the seal 200 through the connecting rod 110, the inner side of the seal 200 is in contact with the oil pump housing 100, and the outer side of the seal 200 is in contact with the housing of the engine 300, thereby achieving a good seal between the oil pump housing 100 and the housing of the engine 300 and effectively preventing oil leakage. In the present utility model, the design of connecting the seal 200 with the connecting rod 110 is adopted, and the connecting hole 221 can be used as a positioning aid. Therefore, the seal 200 can be pre-installed on the housing of the oil pump, with a simple and reliable structure, easy to manufacture, high installation accuracy, and improved production efficiency and product reliability.

[0078] As Figure 3 shown, in some embodiments of the present utility model, the oil pump housing 100 is provided with a first step portion 121 and a second step portion 122 along its axial direction D1. The radial dimension of the first step portion 121 is greater than the radial dimension of the second step portion 122, and the seal 200 is in contact with the outer peripheral surface of the second step portion 122. In this embodiment, the first step portion 121 and the second step portion 122 extend along the axial direction D1, and the first step portion 121 protrudes from the second step portion 122 in the radial direction. While forming the installation portion of the seal 200, it constitutes an axial limit for the seal 200 and improves the sealing performance. Figure 3 It is the separated state of the seal 200 and the oil pump housing 100.

[0079] In some embodiments of the present utility model, a transition surface 123 is formed between the first step portion 121 and the second step portion 122, and the seal 200 is in contact with the transition surface 123. By the seal 200 being in contact with the transition surface 123, the sealing performance of the oil pump housing 100 can be more effectively improved, and the possibility of oil leakage can be reduced.

[0080] As Figures 7 - 8 shown, in some embodiments of the present utility model, in the cross-section perpendicular to the axial direction D1, at least part of the connecting rod 110 is coplanar with the second step portion 122. Optionally, the seal 200 is connected to the first step portion 121. It can be understood that the seal 200 extends above the second step portion 122. In some embodiments, the radial direction of the seal 200 does not overlap with that of the second step portion 122, which is convenient for processing and the installation of the seal 200.

[0081] Optionally, the arc-shaped structure of the seal 200 is adapted to the arc-shaped structure of the second step portion 122, so as to achieve a closer fit, improving the sealing performance.

[0082] As Figure 6 shown, in some embodiments of the present invention, along the axial direction D1, the width of the seal 200 is less than or equal to the width of the second step portion 122. That is, Ls ≤ L 2 .

[0083] In some embodiments of the present invention, along the axial direction D1, the width of the seal 200 is less than or equal to the width of the step baffle 330. That is, Ls ≤ L 1 .

[0084] Through the above-described embodiments, the seal 200 can be well restricted between the second step portion 122 and the step baffle 330.

[0085] In some embodiments of the present invention, the axial direction D1 of the connection hole 221 is parallel to the axial direction D1 of the oil pump housing 100. This helps to improve the precise alignment between the connection hole 221 and the oil pump housing 100, ensuring the accuracy and stability of the connection, improving the assembly accuracy, thus making the installation process simpler and more convenient, and reducing the complexity of installation adjustment. It helps to ensure the best alignment between the seal 200 and the connecting rod 110, maximizing the sealing effect and reducing the risk of leakage.

[0086] As Figure 1 and Figure 8 shown, in some embodiments of the present invention, the diameter of the connection hole 221 is less than or equal to the diameter of the connecting rod 110. That is, Ds ≤ Do. This can ensure the firmness of the connection, prevent the rod from loosening or swinging within the connection hole 221, thus ensuring the reliability of the connection. At the same time, it increases the tightness of the connection, improves the sealing performance of the connection, and reduces the risk of leakage. Figure 8 For Figure 7 the enlarged side view schematic diagram of part D in

[0087] The present invention also provides an engine 300 provided with the above-described seal of the oil pump. The seal of the oil pump can effectively achieve good sealing between the oil pump housing 100 and the engine 300 housing, thereby preventing oil leakage. During installation, it can improve the assembly accuracy during connection, ensuring the accuracy and stability of the connection.

[0088] In some embodiments of the present utility model, the engine 300 includes a cylinder block and an oil pump. The oil pump is disposed within the cylinder block, and the seal 200 is disposed between the oil pump and the cylinder block. The seal 200 disposed between the oil pump and the cylinder block can effectively prevent oil leakage and ensure the normal operation of the lubrication system inside the engine 300.

[0089] As Figure 9 shown, in some embodiments of the present utility model, the cylinder block is provided with an oil storage cavity 310 and a sprocket cavity 320. The seal 200 is used to separate the oil storage cavity 310 from the sprocket cavity 320. The oil pump is disposed within the oil storage cavity 310, and its mechanical force input end extends to the sprocket cavity 320. By separating the oil storage cavity 310 from the sprocket cavity 320 with the seal 200, it can effectively prevent oil from entering the sprocket cavity 320 from the oil storage cavity 310, thereby protecting components such as the sprocket from oil contamination and extending the service life of the sprocket. At the same time, it can avoid the generation of foam due to the sprocket agitating the oil and the consumption of useless power for agitating the oil.

[0090] In some embodiments of the present utility model, the cylinder block is provided with a stepped baffle 330. The stepped baffle 330 is matched with the housing of the oil pump, and the outer side of the seal 200 is in contact with the stepped baffle 330.

[0091] As Figure 6 shown, in some embodiments of the present utility model, the seal 200 satisfies the following formula:

[0092] C·H S ≥δ 1 ;

[0093] In the formula, C is the deformation rate of the seal 200; HS is the height of the seal 200 after deformation; δ 1 is the distance of the gap between the housing 100 of the oil pump and the front end of the stepped baffle 330.

[0094] C·H S ≥δ 2 ;

[0095] In the formula, C is the deformation rate of the seal 200; HS is the height of the seal 200 after deformation; δ 2 is the distance of the gap between the housing 100 of the oil pump and the rear end of the stepped baffle 330.

[0096] The seal 200 is subjected to high and low temperature alternating loads (oil temperature range: -40°C to 150°C) and oil immersion, and the seal 200 itself will undergo permanent compressive deformation. Setting its deformation rate as C, then C·HS is the height of the seal 200 after deformation. Through this limitation, the reliability of the assembly of the seal 200 during the entire life cycle is ensured, and the seal 200 can be effectively prevented from slipping off or being extruded due to deformation, ensuring the reliability of product use.

[0097] The present utility model also provides a vehicle, including the above-mentioned engine 300. When the vehicle is equipped with the above-mentioned engine 300, it will have better power performance, lower risk of oil leakage, higher fuel economy and more reliable service life.

[0098] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the technical field of the present utility model. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. Terms such as "arranged" that appear herein can either mean that one component is directly attached to another component or that one component is attached to another component through an intermediate member. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0099] The present utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of illustration and example, and are not intended to limit the present utility model within the scope of the described embodiments. Those skilled in the art can understand that more variations and modifications can be made according to the teachings of the present utility model, and these variations and modifications all fall within the scope claimed by the present utility model.

Claims

1. A sealing member, characterized in that: The sealing element comprises: the main body; and The ear hanging part is connected to the main body part, and the ear hanging part is provided with a connecting hole, and the connecting hole is used to connect to an external structure.

2. The seal according to claim 1, characterized in that The main body is configured as an arc-shaped structure.

3. The seal according to claim 2, characterized in that The ear hook portion is connected to an end portion of the main body portion.

4. The seal according to claim 1, characterized in that The cross-sectional shape of the main body is rectangular.

5. The seal according to any one of claims 1 to 4, characterized in that: The main body and the ear hook are an integrally formed structure.

6. An oil pump, characterized in that: include: An oil pump housing, wherein the oil pump housing is provided with a connecting rod; The seal according to any one of claims 1 to 5, wherein the connecting hole is connected to the connecting rod, and the inner side of the seal is in contact with the oil pump housing.

7. The oil pump according to claim 6, characterized in that: The oil pump housing is provided with a first step portion and a second step portion along the axial direction thereof, the radial dimension of the first step portion is larger than the radial dimension of the second step portion, and the sealing member is in contact with the outer peripheral surface of the second step portion.

8. The oil pump according to claim 7, characterized in that: A transition surface is formed between the first step portion and the second step portion, and the sealing component is in contact with the transition surface.

9. The oil pump according to claim 7, characterized in that: In a cross section perpendicular to the axial direction, at least a portion of the connecting rod is coplanar with the second step portion.

10. The oil pump according to claim 7, characterized in that: Along the axial direction, a width of the sealing member is less than or equal to a width of the second step portion.

11. The oil pump according to any one of claims 6 to 10, characterized in that: An axial direction of the connecting hole is parallel to an axial direction of the oil pump housing.

12. The oil pump according to any one of claims 6 to 10, characterized in that: The diameter of the connecting hole is smaller than or equal to the diameter of the connecting rod.

13. An engine, characterized in that: An oil pump according to any one of claims 6 to 12 is provided; wherein, When the oil pump is installed on the engine, the outer side of the seal is used to fit with the housing of the engine to achieve sealing between the oil pump housing and the housing of the engine.

14. The engine according to claim 13, characterized in that The engine comprises a cylinder block and an oil pump, wherein the oil pump is arranged in the cylinder block, and the sealing element is arranged between the oil pump and the cylinder block.

15. The engine according to claim 14, characterized in that The cylinder body is provided with an oil storage chamber and a sprocket chamber, and the sealing element is used to separate the oil storage chamber from the sprocket chamber.

16. The engine according to claim 15, characterized in that The cylinder body is provided with a step baffle, the step baffle matches the housing of the oil pump, and the outer side of the sealing element is in contact with the step baffle.

17. The engine according to claim 16, characterized in that Along the axial direction, the width of the sealing member is less than or equal to the width of the step baffle.

18. The engine according to claim 16, characterized in that The seal satisfies the following formula: C·H S ≥δ1; Where C is the deformation rate of the seal; H S is the height of the seal after deformation; δ1 is the distance between the oil pump housing and the front end of the step baffle.

19. The engine according to claim 16, characterized in that The seal satisfies the following formula: C·H S ≥δ2; Where C is the deformation rate of the seal; H S is the height of the seal after deformation; δ2 is the distance between the oil pump housing and the rear end of the step baffle.

20. A vehicle, characterized in that: Comprising an engine according to any one of claims 13-19.

Images