A high strength oil pan assembly

CN224885626UActive Publication Date: 2026-10-23WUHAN DAPINGPOWDER METALLURGY PROD CO LTD
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Patent Information

Application Number
CN202522468748.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-21
Publication Date
2026-10-23
Estimated Expiration
2035-11-21

AI Technical Summary

Technical Problem

[0003]然而,传统油底壳的整体式密封垫在长期使用后易因局部老化、高温或振动出现密封失效,此时需整体更换密封垫,导致维护过程中材料浪费严重,维护成本较高,且整体更换时易因安装偏差影响密封效果

Benefits of technology

[0010]1、通过密封结构中不同密封垫与契合槽的精准匹配,结合密封侧裙对槽体表面的密封平铺,以及密封垫之间的端头对接结构,形成连续密封整体,有效防止机油从对接缝隙或槽体边缘渗漏,提升密封可靠性;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of high-strength oil sump assemblies, it is related to engine parts technical field, including oil sump structure and sealing structure, oil sump structure is fixedly connected with engine by fixed hole through bolt, sealing structure is sealed butt joint in the fitting groove of oil sump structure. Sealing structure includes first sealing gasket, second sealing gasket and third sealing gasket, each sealing gasket is designed according to the position and shape difference of fitting groove, end sealing butt joint is realized by butt joint opening groove and butt joint insertion rod, sealing side skirt with outer edge is equipped on sealing gasket end face, sealing side skirt sealing is laid on the surface of fitting groove. The component is butt joint design by sectional sealing gasket, realize the efficient sealing of oil sump and engine, while it is convenient to replace damaged sealing gasket section pertinently when maintaining.
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Description

Technical Field

[0001] This utility model relates to the field of engine component technology, specifically to a high-strength oil pan assembly. Background Technology

[0002] The oil pan is one of the core components of the engine lubrication system. Its main function is to store engine oil and achieve a sealed connection with the engine block. Its structural strength and sealing performance directly affect the engine's operational stability and service life. Existing oil pans are usually connected to the engine block through an integral gasket, which is tightened with bolts to achieve a seal. At the same time, the oil pan shell must have sufficient strength to withstand oil pressure and engine vibration.

[0003] However, traditional oil pan integral gaskets are prone to sealing failure due to local aging, high temperature or vibration after long-term use. In this case, the entire gasket needs to be replaced, resulting in serious material waste and high maintenance costs. Moreover, the sealing effect is easily affected by installation deviations when replacing the entire gasket. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a high-strength oil pan assembly to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A high-strength oil pan assembly includes an oil pan structure with a sealing structure fitted on it. The oil pan structure achieves a sealed connection with the engine through the sealing structure, and the sealing structure has a segmented sealing connection function.

[0007] Furthermore, the oil pan structure includes an oil pan shell, a mating end face, a shell side end face, a fixing hole, a first mating groove, and a second mating groove. The top of the oil pan shell is the mating end face, and a fixing hole is provided through the mating end face. The first mating groove and the second mating groove are respectively provided on the mating end face. The two sides of the oil pan shell are shell side end faces, and oil drain holes are provided on the shell side end faces. An oil drain plug is threadedly sealed to the oil drain hole.

[0008] Furthermore, the sealing structure includes a first sealing gasket, a second sealing gasket, a third sealing gasket, a mating opening groove, a mating plug rod, and a sealing side skirt. The second sealing gasket is provided on one side of the first sealing gasket, and the third sealing gasket is provided on the other side of the first sealing gasket. A mating opening groove is provided at one end of the first sealing gasket, and a mating plug rod is integrally provided at the other end of the first sealing gasket. Sealing side skirts with outer edges are provided on the end faces of the first, second, and third sealing gaskets. The first sealing gasket is filled in the first mating groove, and the second and third sealing gaskets are respectively filled in the second mating grooves at different positions. The opening of the mating opening groove matches the mating plug rod, and the sealing side skirt is laid flat on the surface of the grooves of the first and second mating grooves.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. By precisely matching different sealing gaskets and mating grooves in the sealing structure, combined with the sealing side skirt covering the surface of the groove, and the end-to-end docking structure between the sealing gaskets, a continuous sealing whole is formed, which effectively prevents oil from leaking from the docking gap or the edge of the groove, thus improving the reliability of the seal.

[0011] 2. The segmented sealing gasket design means that when a local sealing gasket fails due to aging or damage, only the corresponding damaged sealing gasket segment can be replaced, without having to replace the entire sealing structure, which significantly reduces maintenance material and labor costs.

[0012] 3. The oil pan structure is rigidly fixed to the engine through fixing holes, and the gasket is positioned and installed through the mating groove to avoid gasket displacement during assembly, ensure tight fit between the gasket and the engine mating surface, and improve overall installation stability. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the main structure of a high-strength oil pan assembly according to an embodiment of the present utility model;

[0015] Figure 2 This is a breakdown diagram of the main structure of a high-strength oil pan assembly according to an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the oil pan structure of a high-strength oil pan assembly according to an embodiment of the present utility model;

[0017] Figure 4 This is a main body diagram of the sealing structure of a high-strength oil pan assembly according to an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the sealing structure of a high-strength oil pan assembly according to an embodiment of the present utility model;

[0019] Figure 6 This is a reverse view of the sealing structure of a high-strength oil pan assembly according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Oil pan structure; 101. Oil pan housing; 102. Mud-fitting end face; 103. Housing side end face; 104. Fixing hole; 105. First mating groove; 106. Second mating groove; 2. Sealing structure; 201. First sealing gasket; 202. Second sealing gasket; 203. Third sealing gasket; 204. Mud-fitting opening groove; 205. Mud-fitting insertion rod; 206. Sealing side skirt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] According to an embodiment of the present invention, a high-strength oil pan assembly is provided.

[0024] like Figure 1-6 As shown, the high-strength oil pan assembly according to an embodiment of the present invention includes an oil pan structure 1, a sealing structure 2 fitted on the oil pan structure 1, the oil pan structure 1 achieving a sealed connection with the engine through the sealing structure 2, and the sealing structure 2 having a segmented sealing connection function.

[0025] The oil pan structure 1 includes an oil pan housing 101, a mating end face 102, a housing side end face 103, a fixing hole 104, a first mating groove 105, and a second mating groove 106. The top of the oil pan housing 101 is the mating end face 102, and the fixing hole 104 passes through the mating end face 102. The first mating groove 105 and the second mating groove 106 are respectively opened on the mating end face 102. The two sides of the oil pan housing 101 are the housing side end faces 103, and the housing side end faces 103 are provided with oil drain holes. The oil drain holes are internally threaded and sealed with oil drain plugs.

[0026] The oil pan structure 1, as the main load-bearing structure of the high-strength oil pan assembly, has the core function of achieving stable connection with the engine, storing engine oil, and providing an installation foundation for the sealing structure 2. The oil pan 101 is an integral frame used to accommodate and store engine oil, ensuring the normal operation of the engine lubrication system. The mating end face 102 at the top serves as the key contact surface for connection with the engine. Through the through fixing holes 104, fixing bolts are threaded through to directly achieve rigid fixation between the oil pan 101 and the engine, ensuring connection stability. The first mating groove 105 and the second mating groove 106 on the mating end face 102 are respectively the first sealing gasket 201 in the sealing structure 2. The second sealing gasket 202 and the third sealing gasket 203 provide precise installation and positioning space. By matching the shape of the groove with the sealing gasket, displacement of the sealing gasket during assembly or use is avoided, ensuring sealing reliability. The oil drain hole and the threaded sealing oil drain plug on the side end face 103 of the housing are used to periodically drain old engine oil, facilitating the maintenance of the oil pan. Overall, the oil pan structure 1 is mechanically fixed by the fixing hole 104 on the mating end face 102, physically cooperates with the sealing structure 2 through the fitting groove, and achieves maintenance function through the oil drain structure on the side end face 103 of the housing. The various substructures work together to ensure stable connection between the oil pan and the engine and normal operation of the oil system.

[0027] The sealing structure 2 includes a first sealing gasket 201, a second sealing gasket 202, a third sealing gasket 203, a mating opening groove 204, a mating insertion rod 205, and a sealing side skirt 206. The second sealing gasket 202 is provided on one side of the first sealing gasket 201, and the third sealing gasket 203 is provided on the other side of the first sealing gasket 201. The mating opening groove 204 is provided at one end of the first sealing gasket 201, and the mating insertion rod 205 is integrally provided at the other end of the first sealing gasket 201. The sealing side skirt 206 with an outer edge is provided on the end face of the first sealing gasket 201, the second sealing gasket 202, and the third sealing gasket 203. The first sealing gasket 201 is filled in the first mating groove 105, and the second sealing gasket 202 and the third sealing gasket 203 are respectively filled in the second mating groove 106 at different positions. The opening of the mating opening groove 204 matches the mating insertion rod 205. The sealing side skirt 206 is laid flat on the surface of the groove of the first mating groove 105 and the second mating groove 106.

[0028] Sealing structure 2 is the core functional structure for achieving a sealed connection between the oil pan assembly and the engine. Its core function is to achieve efficient sealing and reduce maintenance costs through a segmented sealing design. The first sealing gasket 201, the second sealing gasket 202, and the third sealing gasket 203 serve as the sealing body, designed differently based on the position and shape of the mating grooves in oil pan structure 1: the first sealing gasket 201 fills the first mating groove 105, while the second sealing gasket 202 and the third sealing gasket 203 fill different positions in the second mating grooves 106, achieving a basic seal through tight filling with the grooves. The mating opening groove 204 and mating insertion rod 205 at the end of the first sealing gasket 201, as well as the end designs of the second and third sealing gaskets 202 and 203, allow for end-sealing connections between different sealing gaskets through the matching structure of the opening groove and the insertion rod. A continuous, sealed assembly is formed to prevent leaks at the joints of the gaskets. The sealing side skirt 206, as the outer edge structure on the end face of the gasket, is laid flat on the surface of the first mating groove 105 and the second mating groove 106, further enhancing the contact sealing between the groove and the gasket and preventing oil leakage from the edge of the groove. In addition, since the gasket adopts a segmented docking design, when the oil pan is maintained, the damaged specific section of the gasket can be replaced, significantly reducing maintenance costs. Overall, the sealing structure 2 achieves efficient sealing at the connection between the oil pan structure 1 and the engine through the matching of differentiated gaskets and mating grooves, continuous sealing of the end docking structure, and enhanced sealing of the sealing side skirt. The segmented design improves maintenance convenience and forms a fixed and sealing synergy with the oil pan structure 1, ensuring the overall sealing performance and economic efficiency of the components.

[0029] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0030] The oil pan structure 1 uses fixing bolts inserted through fixing holes 104 to fix the oil pan 101 to the engine. The sealing structure 2 uses three types of sealing gaskets based on the position and shape of the mating grooves. Different first sealing gaskets 201 can be mated together at the ends using mating opening grooves 204 and mating insertion rods 205. The mating end face 102 of the oil pan 101 is divided into left and right sides, with symmetrically arranged mating grooves on both sides. A symmetrical second mating groove 106 is provided on the mating end face 102 near the side end face 103 of the oil pan. The second mating groove 106 can be filled with a second sealing gasket 201. 2 and the third sealing gasket 203. The mating end of the second sealing gasket 202 is provided with a mating opening groove 204, and the mating end of the third sealing gasket 203 is provided with a mating insertion rod 205. The second sealing gasket 202 and the third sealing gasket 203 respectively complete the sealing mating with the first sealing gasket 201 through the mating opening groove 204 and the mating insertion rod 205. The sealing mating between the sealing gaskets completes the sealing and filling of the connection between the housing mating end face 102 and the engine. Since the sealing gaskets are segmented, when the oil pan is maintained, a specific segment of the damaged sealing gasket can be selected for replacement, thereby saving maintenance costs.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength oil pan assembly, characterized in that, It includes an oil pan structure (1), on which a sealing structure (2) fits. The oil pan structure (1) achieves a sealing docking function with the engine through the sealing structure (2), and the sealing structure (2) has a segmented sealing connection function. The sealing structure (2) includes a first sealing gasket (201), a second sealing gasket (202), a third sealing gasket (203), a mating opening groove (204), a mating plug rod (205), and a sealing side skirt (206). The second sealing gasket (202) is provided on one side of the first sealing gasket (201), and the third sealing gasket (203) is provided on the other side of the first sealing gasket (201).

2. The high-strength oil pan assembly according to claim 1, characterized in that, The oil pan structure (1) includes an oil pan shell (101), a mating end face (102), a shell side end face (103), a fixing hole (104), a first mating groove (105), and a second mating groove (106). The top of the oil pan shell (101) is the mating end face (102).

3. A high-strength oil pan assembly according to claim 2, characterized in that, A fixing hole (104) is provided through the mating end face (102), and a first mating groove (105) and a second mating groove (106) are respectively provided on the mating end face (102).

4. A high-strength oil pan assembly according to claim 3, characterized in that, The two sides of the oil pan housing (101) are housing side end faces (103), and an oil drain hole is provided on the housing side end face (103). An oil drain plug is connected to the oil drain hole by a threaded seal.

5. A high-strength oil pan assembly according to claim 4, characterized in that, One end of the first sealing gasket (201) is provided with a mating opening groove (204), and the other end of the first sealing gasket (201) is provided with a mating plug rod (205).

6. A high-strength oil pan assembly according to claim 5, characterized in that, The first sealing gasket (201), the second sealing gasket (202), and the third sealing gasket (203) have sealing side skirts (206) on their end faces. The first sealing gasket (201) is filled in the first mating groove (105), and the second sealing gasket (202) and the third sealing gasket (203) are filled in the second mating grooves (106) at different positions.

7. A high-strength oil pan assembly according to claim 6, characterized in that, The groove of the mating opening groove (204) matches the mating plug rod (205), and the sealing side skirt (206) is laid flat on the groove surface of the first mating groove (105) and the second mating groove (106).