Oil pan for engine

Abstract

The embodiment of the utility model provides an oil pan for an engine. The oil pan comprises a shell, an oil suction pipe and an oil suction pipe upper cover. The shell comprises a deep groove region and a shallow groove region; the mounting surfaces of the deep groove region and the shallow groove region are positioned on the same plane, the bottom surface of the deep groove region is connected with the bottom surface of the shallow groove region through an inclined surface, and the mounting surfaces are opposite to the bottom surface of the deep groove region; an oil suction port is formed in the mounting surface, and the section of the oil suction port is elliptical; a fixed support hole is formed in the bottom surface of the shallow groove area, and a threaded insert is arranged in the fixed support hole; the oil suction pipe is in a flat pipe shape with an opening in the middle, support holes are formed in the two sides of the oil suction pipe, one end of the oil suction pipe is fixedly connected with the oil port, the other end of the oil suction pipe is fixedly connected with the bottom face of the deep groove area, and the lower end of the oil suction pipe upper cover is fixedly connected with the oil suction pipe opening area. The oil pan for the engine is simple in structure, easy to form and simple in assembly process, and therefore the design and manufacturing cost of the oil pan for the engine is low.

Description

An engine oil pan Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to an oil pan for an engine. Background Technology

[0002] The oil pan is a component of the engine lubrication system. Its main functions are to store engine oil, seal the crankcase to prevent impurities from entering, collect and store lubricating oil flowing back from the engine friction surfaces, dissipate some heat, and prevent oil oxidation. By storing engine oil, the oil pan ensures that the engine receives continuous necessary lubrication during operation. By sealing the crankcase and preventing impurities from entering, it helps maintain a clean working environment, protecting internal engine parts from contamination. Furthermore, by dissipating some heat, the oil pan helps prevent oil oxidation, thereby extending the oil's lifespan.

[0003] Currently, most engine oil pans adopt a conventional design, formed using stamping or casting processes, without lightweighting or noise reduction measures, and have shortcomings in structure and materials. For example, metal oil pans are usually heavy, have high manufacturing costs, produce noticeable noise, and have low dimensional accuracy and a rough appearance; in addition, metal oil pans use paper-based seals, which are prone to wear and leakage; SMC composite material oil pans are limited by the molding process, have relatively simple product structure requirements, and the material cannot be recycled, while the wall thickness is relatively thick to ensure high strength and impact resistance, resulting in higher costs.

[0004] Therefore, there is a lack of an engine oil pan that is easy to mold, has high strength, and is low cost in the existing technology. Summary of the Invention

[0005] The purpose of this utility model embodiment is to provide an engine oil pan that is easy to mold, has high strength, and is low cost, thereby overcoming the shortcomings of the prior art. The specific technical solution is as follows:

[0006] An oil pan for an engine includes a housing, an oil suction pipe, and an oil suction pipe cover;

[0007] The housing includes a deep groove area and a shallow groove area;

[0008] The mounting surfaces of the deep trench area and the shallow trench area are on the same plane, the bottom surface of the deep trench area and the bottom surface of the shallow trench area are connected by an inclined surface, and the mounting surface and the bottom surface of the deep trench area are opposite to each other;

[0009] An oil suction port is provided on the mounting surface, and the cross-sectional shape of the oil suction port is elliptical.

[0010] The bottom surface of the shallow trench area is provided with a fixing bracket hole, and a threaded insert is provided in the fixing bracket hole;

[0011] The oil suction pipe is a flat tube with an opening in the middle. Support holes are provided on both sides of the oil suction pipe. One end of the oil suction pipe is fixedly connected to the oil suction port, and the other end of the oil suction pipe is fixedly connected to the bottom surface of the deep groove area. The lower end of the oil suction pipe cover is fixedly connected to the opening area of ​​the oil suction pipe.

[0012] Optionally, one end of the oil suction pipe is fixedly connected to the oil suction port by welding, the other end of the oil suction pipe is fixedly connected to the bottom surface of the deep groove area by welding, and the lower end of the oil suction pipe cover is fixedly connected to the opening area of ​​the oil suction pipe by welding.

[0013] Optionally, a filter screen is fixed between the oil suction pipe and the bottom surface of the deep groove area.

[0014] Optionally, the mounting surfaces of the deep groove area and the shallow groove area have sealing grooves, and rubber sealing gaskets are installed in the sealing grooves.

[0015] Optionally, the mounting surface is provided with a through hole, and a metal insert is fixed in the through hole.

[0016] Optionally, the metal insert is embedded in the through hole, or fixed in the through hole by interference fit or adhesive bonding.

[0017] Optionally, the outer surface of the housing is provided with reinforcing ribs.

[0018] Optionally, an oil drain hole is provided on the bottom surface of the deep groove area, and an oil drain insert is fixed in the oil drain hole.

[0019] Optionally, the housing, the oil suction pipe, and the oil suction pipe cover are all injection molded from fiber-reinforced thermoplastic composite materials.

[0020] Compared with existing technologies, the oil pan housing, oil suction pipe, and oil suction pipe cover of this utility model have a simple structure, are easy to form, have low design and manufacturing costs, and are easy to assemble. The oil pan is made of fiber-reinforced thermoplastic composite material, which can reduce noise pollution generated during vehicle operation. A filter screen is installed between the oil suction pipe and the oil pan housing to effectively filter impurities in the engine oil and ensure normal engine operation. Reinforcing ribs are provided on the outer side of the oil pan to ensure the impact resistance and high strength of the housing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0022] Figure 1 is a top view structural schematic diagram of an embodiment of the oil pan provided by this utility model;

[0023] Figure 2 is a schematic diagram of the front view structure of the oil pan embodiment provided by this utility model;

[0024] Figure 3 is a cross-sectional view of the oil pan embodiment provided by this utility model.

[0025] The correspondence between the component names and their corresponding reference numerals in Figures 1 to 3 is as follows:

[0026] 1. Shell, 11. Deep groove area, 12. Shallow groove area;

[0027] 101 Mounting surface, 102 sloping surface, 103 oil suction port, 104 sealing groove, 105 through hole, 107 reinforcing rib, 108 oil drain hole;

[0028] 111 Bottom surface of deep groove area, 121 Bottom surface of shallow groove area, 122 Fixing bracket hole;

[0029] 2 suction pipes, 21 bracket holes;

[0030] 3. Oil suction pipe cover;

[0031] 4. Threaded inserts;

[0032] 5. Filter screen;

[0033] 6. Rubber sealing gaskets;

[0034] 7. Metal inserts;

[0035] 8. Oil-removing inserts. Detailed Implementation

[0036] 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.

[0037] It should be noted that the directional terms "top" and "bottom" in this embodiment are defined based on the position of the oil pan embodiment shown in Figure 2.

[0038] Please refer to Figures 1 to 3. Figure 1 is a structural schematic diagram of an embodiment of the oil pan provided by this utility model, Figure 2 is a front view structural schematic diagram of an embodiment of the oil pan provided by this utility model, and Figure 3 is a cross-sectional view structural schematic diagram of an embodiment of the oil pan provided by this utility model. As shown in Figures 1 to 3, the engine oil pan provided in this embodiment includes a housing 1, an oil suction pipe 2, and an oil suction pipe cover 3.

[0039] The housing 1 includes a deep groove area 11 and a shallow groove area 12; the mounting surfaces 101 of the deep groove area 11 and the shallow groove area 12 are on the same plane, the bottom surface 111 of the deep groove area 11 and the bottom surface 121 of the shallow groove area 12 are connected by an inclined surface 102, and the mounting surface 101 and the bottom surface 111 of the deep groove area 11 are opposite to each other.

[0040] An oil suction port 103 is provided on the mounting surface 101, and the cross-sectional shape of the oil suction port 103 is elliptical; a fixing bracket hole 122 is provided on the bottom surface 121 of the shallow groove area 12, and a threaded insert 4 is provided in the fixing bracket hole 122.

[0041] The oil suction pipe 2 is a flat tube with an opening in the middle. Support holes 21 are provided on both sides of the oil suction pipe 2. One end of the oil suction pipe 2 is fixedly connected to the oil suction port 103, and the other end of the oil suction pipe 2 is fixedly connected to the bottom surface 111 of the deep groove area 11. The lower end of the oil suction pipe cover 3 is fixedly connected to the opening area of ​​the oil suction pipe 2.

[0042] It can be understood that mounting surface 101 is the sealing surface at the top of the oil pan.

[0043] In practical applications, bolts can be passed through the bracket holes and threaded inserts 2 on both sides of the oil suction pipe 2 in sequence to stably connect the oil suction pipe 2 and the housing 1 together.

[0044] The engine oil pan of this utility model embodiment is composed of a shell 1, an oil suction pipe 2 and an oil suction pipe cover 3. The shell 1, oil suction pipe 2 and oil suction pipe cover 3 have simple structures, are easy to form and have a simple assembly process, thereby making the design and manufacturing cost of the engine oil pan low.

[0045] Specifically, to further secure the connection between the housing 1 and the oil suction pipe 2, one end of the oil suction pipe 2 is welded to the oil suction port 103. For example, referring to Figure 1, the oil suction port 103 is located on the end side of the shallow tank area 12. One end face of the oil suction port 103 is flush with the mounting surface 101, and the other end is located inside the end side of the shallow tank area 12 and is fixedly connected to one end of the oil suction pipe 2. The end face of the oil suction port 103 located inside the end side of the shallow tank area 12 can be provided with a welding rib, and one end face of the oil suction pipe 2 is provided with a welding surface. The welding rib of the oil suction port 103 and the welding surface of the oil suction pipe 2 are fixedly connected by welding.

[0046] The other end of the oil suction pipe 2 is welded to the bottom surface 111 of the deep trench area 11. For example, the other end of the oil suction pipe 2 can be provided with a welding rib, and a welding surface is designed on the bottom surface 111 of the deep trench area 11. The welding rib of the oil suction pipe 2 and the welding surface on the bottom surface 111 of the deep trench area 11 are fixedly connected by welding.

[0047] Furthermore, in order to effectively filter impurities in the engine oil, a filter screen 5 is fixed between the oil suction pipe 2 and the bottom surface 111 of the deep groove area 11. A preset distance is provided between the filter screen 5 and the bottom surface 111 of the deep groove area 11.

[0048] Specifically, in order to ensure the sealing of the oil pan, the mounting surface 101 of the deep groove area 11 and the shallow groove area 12 has a sealing groove 104, and a rubber sealing gasket 6 is installed in the sealing groove 104.

[0049] Optionally, in order to improve the overall installation strength of the oil pan, a through hole 105 is provided on the mounting surface 101, and a metal insert 7 is fixed in the through hole 105.

[0050] Specifically, in order to ensure that the metal insert 7 can be stably fixed in the through hole 105, the metal insert 7 can be embedded in the through hole 105, or fixed in the through hole 105 by interference fit or bonding.

[0051] Furthermore, to further improve the strength of the oil pan, reinforcing ribs 107 are provided on the outer surface of the shell 1. Specifically, the reinforcing ribs 107 are distributed in a crisscross pattern, with a center-to-center distance of 8-15 mm and a thickness of 2 mm in the length direction, and a center-to-center distance of 25-35 mm and a thickness of 2 mm in the width direction.

[0052] Specifically, in this embodiment, in order to drain the oil from the oil pan as quickly as possible, an oil drain hole 108 is provided on the bottom surface 111 of the deep groove area 11, and an oil drain insert 8 is fixed in the oil drain hole 108. More specifically, the oil drain insert 8 can be pre-embedded in the position of the oil drain hole 108 and directly embedded in it during injection molding; or, the oil drain insert 8 can also be achieved by interference fit or bonding with the oil drain hole 108. The oil drain plug is assembled to the housing 1 through the oil drain insert 8, and the housing 1 is disassembled from the oil drain plug through the oil drain insert 8 to ensure the storage and drainage of the engine oil in the housing 1. The oil drain insert 8 is used to ensure the connection strength of the oil drain plug.

[0053] Optionally, in this embodiment, the oil pan housing 1, the oil suction pipe 2, and the oil suction pipe cover 3 are all injection molded from fiber-reinforced thermoplastic composite materials.

[0054] During injection molding, a through hole 105 is provided on the mounting surface 101. The metal insert 7 is pre-placed in the position of the through hole 105 in the mold and directly embedded in the through hole 105 during injection molding. Then, the housing 1 is bolted to the engine through the through hole 105, and the embedded metal insert 7 ensures the connection strength. To ensure the sealing of the connection between the housing 1 and the engine, a rubber sealing gasket 6 is provided in the rectangular sealing groove 104 on the sealing surface. The elasticity of the rubber sealing gasket 6 ensures the sealing between the housing 1 and the engine.

[0055] Because the housing 1, oil suction pipe 2, and oil suction pipe cover 3 are injection molded separately, and their simple structure facilitates assembly, the overall design and manufacturing costs are low. The housing 1 and oil suction pipe 2 are fixedly connected by welding, ensuring high stability of the oil pan. A rubber gasket replaces the conventional paper-based gasket, utilizing the elasticity of rubber to ensure airtightness between the housing and the cylinder block. Due to the good wear resistance of rubber, the rubber gasket can be recycled after the oil pan is disassembled. The oil pan is made of fiber-reinforced thermoplastic composite material, which reduces noise pollution during vehicle operation. The oil suction pipe is equipped with a filter device, effectively filtering impurities in the engine oil and ensuring normal engine operation. The reinforcing rib design ensures the impact resistance and high strength of the housing.

[0056] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. An oil pan for an engine, characterized in that, The system includes a housing (1), an oil suction pipe (2), and an oil suction pipe cover (3); the housing (1) includes a deep groove area (11) and a shallow groove area (12); the mounting surfaces (101) of the deep groove area (11) and the shallow groove area (12) are on the same plane, the bottom surface (111) of the deep groove area (11) and the bottom surface (121) of the shallow groove area (12) are connected by an inclined surface (102), and the mounting surface (101) and the bottom surface (111) of the deep groove area (11) are opposite to each other; an oil suction port (103) is provided on the mounting surface (101), and the cross-section of the oil suction port (103) is... The surface shape is elliptical; the bottom surface (121) of the shallow groove area (12) is provided with a fixed support hole (122), and a threaded insert (4) is provided in the fixed support hole (122); the oil suction pipe (2) is a flat tube with an opening in the middle, and support holes (21) are provided on both sides of the oil suction pipe (2). One end of the oil suction pipe (2) is fixedly connected to the oil suction port (103), and the other end of the oil suction pipe (2) is fixedly connected to the bottom surface (111) of the deep groove area (11). The lower end of the oil suction pipe cover (3) is fixedly connected to the opening area of ​​the oil suction pipe (2).

2. The engine oil pan according to claim 1, characterized in that, One end of the oil suction pipe (2) is fixedly connected to the oil suction port (103) by welding, the other end of the oil suction pipe (2) is fixedly connected to the bottom surface (111) of the deep groove area (11) by welding, and the lower end of the oil suction pipe cover (3) is fixedly connected to the opening area of ​​the oil suction pipe (2) by welding.

3. The engine oil pan according to claim 2, characterized in that, A filter screen (5) is fixed between the oil suction pipe (2) and the bottom surface (111) of the deep groove area (11).

4. The engine oil pan according to claim 3, characterized in that, The mounting surfaces (101) of the deep groove area (11) and the shallow groove area (12) have sealing grooves (104), in which rubber sealing gaskets (6) are installed.

5. The engine oil pan according to claim 4, characterized in that, The mounting surface (101) is provided with a through hole (105), and a metal insert (7) is fixed in the through hole (105).

6. The engine oil pan according to claim 5, characterized in that, The metal insert (7) is embedded in the through hole (105), or fixed in the through hole (105) by interference fit or adhesive bonding.

7. The engine oil pan according to claim 6, characterized in that, The outer surface of the shell (1) is provided with reinforcing ribs (107).

8. The engine oil pan according to claim 7, characterized in that, The bottom surface (111) of the deep groove area (11) is provided with an oil drain hole (108), and an oil drain insert (8) is fixed in the oil drain hole (108).

9. The engine oil pan according to any one of claims 1-8, characterized in that, The shell (1), the oil suction pipe (2), and the oil suction pipe cover (3) are all injection molded from fiber-reinforced thermoplastic composite materials.

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