An integrated automotive oil pan assembly
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-08-14
AI Technical Summary
因此,在机油集滤器对油底壳内的机油进行抽取时,这些杂质和油泥会附着或堵塞在滤网表面,导致机油通过率下降,影响机油泵的正常吸油,严重时可能引发润滑不足,造成发动机异常磨损甚至损坏
[0015]1、通过在油底壳体底部设置过滤网二,对机油进行初步过滤,有效拦截大颗粒杂质和沉积油泥;同时在抽取路径上设置精细过滤网进行二次过滤,形成两级过滤体系,显著提高了进入机油泵的机油纯净度,降低了润滑系统故障风险,延长了发动机使用寿命。
Smart Images

Figure CN224634615U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine technology, and more specifically, to an integrated automotive oil pan assembly. Background Technology
[0002] The oil pan assembly is a crucial component of the engine lubrication system, typically located at the very bottom of the engine. Its primary function is to store and hold engine oil, providing continuous lubrication to all moving parts of the engine. It also seals the crankcase, assists in heat dissipation, and protects the lower engine structure. Existing oil pan assemblies usually integrate an oil strainer. This strainer is connected to the oil pump inlet pipe, and its extraction port is generally located at the bottom of the oil pan to facilitate the efficient extraction of oil from the pan during engine operation.
[0003] However, in actual use, as the engine runs for longer periods, metal shavings, carbon deposits, and sludge from oxidation gradually accumulate in the engine oil. These impurities are relatively dense and, under gravity, will continuously settle and accumulate at the lowest point of the oil pan. Therefore, when the oil strainer draws oil from the oil pan, these impurities and sludge adhere to or clog the filter screen, reducing oil flow and affecting the normal oil pump's suction. In severe cases, this can lead to insufficient lubrication, causing abnormal engine wear or even damage. Furthermore, deposits also tend to accumulate around the drain port at the bottom of the oil pan, hindering the complete drainage of old oil during oil changes. Utility Model Content
[0004] In view of the problems in the related technologies, this utility model proposes an integrated automotive 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] An integrated automotive oil pan assembly includes an oil pan housing with an oil filter inside. The oil filter includes an oil suction pipe, one end of which is connected to an oil extraction head, and the other end is connected to a positioning plate. A filter screen is installed inside the oil extraction head. A support frame is slidably mounted on the bottom of the oil pan housing, and a filter screen is fixedly connected to the surface of the support frame. A filtration mechanism is provided on the surface of the filter screen.
[0007] Furthermore, to prevent the filter screen at one end of the oil strainer from becoming clogged, the extraction and filtration mechanism includes a delivery pipe connected to the surface of the filter screen. A support rod is connected inside the delivery pipe, and a drive shaft is rotatably connected to the bottom of the support rod. A driven impeller is connected to the surface of the drive shaft, and an arc-shaped scraper is connected to one side of the driven impeller. A fine filter screen is installed at one end of the delivery pipe, and the drive shaft is rotatably connected to the fine filter screen.
[0008] Furthermore, in order to facilitate the drainage of the oil inside the oil pan during oil changes, an oil drain port is provided at the bottom of the oil pan, and an oil drain pipe is connected to the bottom of the support frame, with the oil drain port and the oil drain pipe working together.
[0009] Furthermore, in order to seal the drain port and drain pipe, a drain bolt is threaded onto one side of the drain pipe.
[0010] Furthermore, in order to ensure that oil can only be drawn from one end of the oil filter via the delivery pipe, the end of the oil extractor head is matched with the delivery pipe.
[0011] Furthermore, in order to improve the sealing effect when the oil sucker head comes into contact with the top of the delivery pipe, a sealing gasket is installed on the top of the delivery pipe.
[0012] Furthermore, in order to facilitate the fixed installation of the oil pan at the bottom of the engine, positioning holes are provided on each side of the top of the oil pan, and a sealing gasket is provided on one side of the positioning hole.
[0013] Furthermore, to facilitate the removal of the support frame and filter screen two from the oil pan, pull rings are connected to both sides of filter screen two.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. By installing a second filter screen at the bottom of the oil pan, the engine oil is initially filtered, effectively intercepting large particles of impurities and deposited sludge; at the same time, a fine filter screen is installed in the extraction path for secondary filtration, forming a two-stage filtration system. This significantly improves the purity of the engine oil entering the oil pump, reduces the risk of lubrication system failure, and extends the engine's service life.
[0016] 2. The oil intake port of the oil strainer is designed to align with the delivery pipe located below the second filter screen. This ensures that the extracted oil always comes from the clean area that has undergone preliminary sedimentation and filtration, avoiding the clogging of the filter screen and drain port caused by directly extracting oil from the high-concentration impurity area at the bottom. This guarantees the continuity and stability of the oil supply. The extraction and filtration mechanism utilizes the fluid dynamics of the oil to drive the driven impeller to rotate, which in turn drives an arc-shaped scraper via a transmission shaft to automatically scrape the surface of the fine filter screen. This effectively removes impurities adhering to the filter screen in real time, preventing a decrease in filtration efficiency and filter screen clogging caused by impurity accumulation, and improving the stability of the equipment during oil extraction. Attached Figure Description
[0017] 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.
[0018] Figure 1 This is a schematic diagram of the surface structure of an integrated automotive oil pan assembly according to an embodiment of the present utility model;
[0019] Figure 2 This is an internal cross-sectional view of an integrated automotive oil pan assembly according to an embodiment of the present utility model;
[0020] Figure 3 This is a cross-sectional bottom view of an integrated automotive oil pan assembly according to an embodiment of the present utility model;
[0021] Figure 4 This is a detailed surface structure diagram of the support frame in an integrated automotive oil pan assembly according to an embodiment of the present utility model;
[0022] Figure 5 This is an internal cross-sectional view of the delivery pipe in an integrated automotive oil pan assembly according to an embodiment of the present utility model;
[0023] Figure 6 This is a detailed surface structure diagram of an oil filter in an integrated automotive oil pan assembly according to an embodiment of the present invention.
[0024] In the picture:
[0025] 1. Oil pan housing; 2. Oil strainer; 201. Suction pipe; 202. Oil sucker head; 203. Positioning plate; 204. Filter screen one; 3. Support frame; 4. Filter screen two; 5. Filter extraction mechanism; 501. Delivery pipe; 502. Support rod; 503. Drive shaft; 504. Driven impeller; 505. Arc scraper; 506. Fine filter screen; 6. Oil drain port; 7. Oil drain pipe; 8. Drain bolt; 9. Sealing gasket; 10. Positioning hole; 11. Sealing gasket; 12. Lifting ring. Detailed Implementation
[0026] 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.
[0027] According to an embodiment of the present invention, an integrated automotive oil pan assembly is provided.
[0028] like Figures 1-6 As shown, an integrated automotive oil pan assembly according to an embodiment of the present invention includes an aluminum alloy oil pan housing 1, which is installed at the bottom of the engine and stores a certain amount of engine oil inside to provide continuous lubrication for various moving parts of the engine. An oil filter 2 is provided inside the oil pan housing 1. The oil filter 2 includes an oil suction pipe 201, one end of which is connected to an oil extraction head 202, and the other end is connected to a positioning plate 203. A filter screen 204 is installed inside the oil extraction head 202. The oil filter 2 can be fixedly installed on the oil pump via the positioning plate 203 at one end. At the input end, after the oil pump starts, it can filter and extract the oil in the oil pan 1. A support frame 3 is slidably installed at the bottom of the oil pan 1. A filter screen 4 is fixedly connected to the surface of the support frame 3. The surface of the filter screen 4 is provided with an extraction and filtration mechanism 5. The filter screen 4 can perform preliminary filtration of the oil in the oil pan 1, blocking some impurities and sludge above the filter screen 4. At this time, the oil filter collector 2 can extract the oil below the filter screen 4 through the extraction and filtration mechanism 5. During extraction, the oil can be finely filtered again, effectively preventing the oil extractor head 202 from becoming clogged.
[0029] like Figures 1-6As shown, the extraction and filtration mechanism 5 includes a conveying pipe 501 connected to the surface of the filter screen 4. A support rod 502 is connected to one side of the inside of the conveying pipe 501. A drive shaft 503 is rotatably connected to the bottom of the support rod 502. A driven impeller 504 is connected to one side of the drive shaft 503. An arc-shaped scraper 505 is connected to one side of the driven impeller 504. A fine filter screen 506 is installed at one end of the conveying pipe 501. The drive shaft 503 is rotatably connected to the fine filter screen 506. The arc-shaped scraper slides in sliding contact with one side of the fine filter screen 506. The end of the oil extraction head 202... The oil pan 1 is installed at the bottom of the engine, and the oil extraction head 202 at one end of the oil filter 2 is in contact with the top of the oil transfer pipe 501. When the oil filter 2 draws oil, the oil initially filtered at the bottom of the filter screen 4 is drawn by the oil transfer pipe 501 and undergoes secondary filtration through the fine filter screen 506 at one end of the oil transfer pipe 501. As the oil is drawn and flows through the oil transfer pipe 501, it drives the driven impeller 504 to rotate, which in turn drives the arc-shaped scraper 505 to rotate via the drive shaft 503. This allows for scraping and cleaning of one side of the fine filter screen 506, preventing trapped impurities from clogging that side. The bottom of the oil pan 1 has an oil drain port 6, and the bottom of the support frame 3 is connected to an oil drain pipe 7. The oil drain port 6 and the oil drain pipe 7 are fitted together, and one side of the oil drain pipe 7 is threaded with a drain bolt 8. When the oil in the oil pan 1 needs to be changed and drained, the drain bolt 8 is turned to disassemble the oil drain pipe 7, opening one end and allowing the oil in the oil pan 1 to drain out. The top of the delivery pipe 501 is equipped with... A rubber sealing gasket 9 is used to increase the sealing effect when one end of the oil sucker head 202 contacts the top of the delivery pipe 501. The top of the oil pan housing 1 has positioning holes 10 on each side, and a sealing gasket 11 is provided on one side of the positioning hole 10. This is used to fix the oil pan housing 1 to the bottom of the engine by bolts, and the sealing gasket 11 can increase the sealing effect after the oil pan housing 1 is installed. The filter screen 2 4 has lifting rings 12 connected to both sides, which is used to facilitate the removal of the filter screen 2 4 and the support frame 3 from the oil pan housing 1 to clean the impurities and sludge deposited inside.
[0030] 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.
[0031] In actual use, the oil pan 1 is first securely installed at the bottom of the engine using the positioning hole 10 on the top, bolts, and sealing gasket 11, forming a sealed oil storage space. The oil stored in the oil pan 1 is used to lubricate the various moving parts of the engine. When the engine starts and the oil pump begins to work, its negative pressure is transmitted to the oil extractor 202 through the oil suction pipe 201. At this time, some of the oil undergoes preliminary filtration through the filter screen 4 located at the bottom of the oil pan 1. Larger particles of impurities and sludge are blocked above the filter screen 4, while relatively clean oil enters the area below the filter screen 4. Since the end of the oil extractor 202 is tightly fitted to the top of the delivery pipe 501 through the sealing gasket 9, the suction force of the oil pump drives the oil below the filter screen 4 into the delivery pipe 501. As the oil flows through the delivery pipe 501, it first undergoes secondary fine filtration through a fine filter screen 506 at one end, achieving a dual-stage filtration effect. This ensures the cleanliness of the oil entering the oil pump and effectively prevents lubrication system malfunctions caused by impurities. Simultaneously, the flowing oil impacts the driven impeller 504 inside the delivery pipe 501, causing it to rotate around the drive shaft 503. The drive shaft 503 then drives the arc-shaped scraper 505 connected to it to rotate synchronously. The arc-shaped scraper 505 maintains sliding contact with one side of the fine filter screen 506, periodically scraping the surface of the fine filter screen 506 during continuous oil flow. This promptly removes tiny impurities adhering to the screen, preventing clogging and ensuring stable filtration efficiency and oil flow.
[0032] 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. An integrated automotive oil pan assembly characterized by, The oil pan includes an oil pan housing (1), and an oil filter (2) is provided inside the oil pan housing (1). The oil filter (2) includes an oil suction pipe (201), one end of which is connected to an oil sucker head (202), and the other end is connected to a positioning plate (203). A filter screen (204) is installed inside the oil sucker head (202). A support frame (3) is slidably installed at the bottom of the oil pan housing (1). A filter screen (4) is fixedly connected to the surface of the support frame (3). A filtration mechanism (5) is provided on the surface of the filter screen (4).
2. An integrated oil pan assembly for an automotive vehicle as set forth in claim 1 wherein, The extraction and filtration mechanism (5) includes a conveying pipe (501) connected to the surface of the filter screen (4). A support rod (502) is connected inside the conveying pipe (501). A drive shaft (503) is rotatably connected to the bottom of the support rod (502). A driven impeller (504) is connected to the surface of the drive shaft (503). An arc-shaped scraper (505) is connected to one side of the driven impeller (504). A fine filter screen (506) is installed at one end of the conveying pipe (501). The drive shaft (503) is rotatably connected to the fine filter screen (506).
3. An integrated oil pan assembly for an automotive vehicle as set forth in claim 1 wherein, The bottom of the oil pan (1) has an oil drain port (6), and the bottom of the support frame (3) is connected to an oil drain pipe (7). The oil drain port (6) and the oil drain pipe (7) are matched.
4. An integrated oil pan assembly for an automotive vehicle as set forth in claim 1 wherein, One side of the drain pipe (7) is threaded with a drain bolt (8).
5. An integrated oil pan assembly for an automotive vehicle as set forth in claim 2 wherein, The end of the sucker head (202) is fitted with the delivery pipe (501), and a sealing gasket (9) is installed on the top of the delivery pipe (501).
6. An integrated automotive oil pan assembly according to claim 1, characterized in that, The top of the oil pan housing (1) has positioning holes (10) on each side, and a sealing gasket (11) is provided on one side of the positioning hole (10).
7. An integrated oil pan assembly for an automotive vehicle as set forth in claim 1 wherein, The two sides of filter screen 2 (4) are connected to lifting rings (12).