Lubricating system capable of preventing backflow oil storage

Abstract

The utility model relates to a lubricating system capable of preventing backflow oil storage, which belongs to the field of engine lubricating systems and comprises an engine oil cooler seat, a box type engine oil cooler arranged on the engine oil cooler seat, an engine oil filter seat arranged on one side of the engine oil cooler seat and an engine oil filter arranged on one side of the engine oil filter seat. The engine oil cooler seat is provided with an engine oil pump rear oil duct and a before-filtering oil duct, the box type engine oil cooler is provided with a first overflow pipe communicated with the engine oil pump rear oil duct and a second overflow pipe communicated with the before-filtering oil duct, the engine oil filter seat is provided with an engine oil before-filtering oil duct communicated with the before-filtering oil duct, and the engine oil filter is communicated with the engine oil filter seat oil duct. And the engine oil filter seat is additionally provided with an engine oil pre-filtering oil channel and an engine oil post-filtering oil channel which are communicated with the engine oil filter. The engine oil cooler base is beneficial to reducing deformation of an engine body or the engine cooler base, improving heat dissipation efficiency of the engine oil cooler and shortening engine oil pressure building time.

Description

Technical Field

[0001] The utility model belongs to the field of engine lubrication systems, in particular to a lubrication system with anti-backflow oil storage. Background Art

[0002] In the heavy-duty diesel engine sector, the oil coolers in their lubrication systems are mostly traditional plate-fin type, with fins embedded in a specific water cavity within the engine body. The oil cooler is then fixed to the engine cooler base or the engine body. During engine modification and matching, varying heat dissipation requirements necessitate changes in the oil cooler fins. This results in multiple engine body or engine cooler base variations due to the varying heat dissipation of the oil cooler, hindering error prevention and management. The box-type oil cooler, on the other hand, is a flexible design that is not restricted by the engine water cavity or engine cooler base. Fins can be added or removed based on heat dissipation requirements, significantly reducing engine body or engine cooler base design variations while improving heat dissipation efficiency.

[0003] At the same time, the oil filters in the lubrication system are mostly arranged vertically, and the oil channel behind the engine cooler is higher than the main oil channel; most of the horizontal oil coolers are arranged at the top of the cooling and lubrication system. After the engine is stopped, the oil in the oil cooler and the engine cooler seat, oil filter seat, and oil filter will flow back to the oil pan. When the engine is started again, it will take a certain amount of time to fill the system oil circuit, which prolongs the time to build oil pressure and aggravates the wear of the friction pair. Utility Model Content

[0004] The purpose of the utility model is to design a lubrication system with anti-backflow oil storage, that is, after the engine is stopped, the oil in some parts and pipelines of the lubrication system will not flow back to the oil pan, thereby shortening the oil pressure building time and reducing the wear of the engine friction pairs.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present utility model provides a lubrication system for anti-backflow oil storage, comprising an oil cooler seat, a box-type oil cooler arranged on the oil cooler seat, an oil filter seat arranged on one side of the oil cooler seat, and an oil filter arranged on one side of the oil filter seat, the oil cooler seat is provided with an oil pump rear oil passage and an oil cooler rear oil passage, the box-type oil cooler is provided with a first overflow pipe connected to the oil pump rear oil passage and a second overflow pipe connected to the oil cooler rear oil passage, the oil filter seat is provided with an oil filter front oil passage connected to the oil cooler rear oil passage, the oil filter is connected to the oil filter front and rear oil passages, and the oil filter seat is further provided with an oil filter rear oil passage connected to the oil filter.

[0006] Preferably, the box-type oil cooler adopts an oil storage type.

[0007] Preferably, a check valve is provided in the oil filter.

[0008] Preferably, the oil filter seat adopts a high oil level setting.

[0009] Preferably, the box-type oil cooler can be placed horizontally on the top of the engine.

[0010] Preferably, the engine oil can enter the inlet oil channel of the box-type oil cooler through the oil pump rear oil channel in the oil cooler seat, and be diverted to each layer of fins along the first overflow pipe. After being cooled by the coolant, the engine oil flows to the oil outlet of the box-type oil cooler. Because the inlet and outlet oil ports have the first overflow pipe and the second overflow pipe respectively, and there is a certain gap between the overflow pipe mouth and the outermost layer of the box-type oil cooler.

[0011] In summary, the present invention has the following beneficial technical effects:

[0012] 1. Reduce the deformation of the machine body or the cooler seat;

[0013] 2. Improve the heat dissipation efficiency of the oil cooler;

[0014] 3. Shortened the oil pressure building time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of an oil cooler seat in a lubrication system for preventing backflow and storing oil in the utility model;

[0016] Figure 2 This is a structural diagram of a box-type oil cooler in a lubrication system with anti-backflow oil storage according to the utility model;

[0017] Figure 3 This is a structural schematic diagram of an oil filter seat in a lubrication system for preventing backflow and storing oil in the utility model;

[0018] Figure 4 This is a structural diagram of an oil filter in a lubrication system with anti-backflow oil storage according to the utility model;

[0019] Figure 5 This is a schematic diagram of the overall structure of a lubrication system for preventing backflow and storing oil in the utility model;

[0020] Figure 6 This is a schematic diagram of the oil path in a lubrication system with anti-backflow oil storage according to the utility model.

[0021] Figure numerals: 1. Oil cooler seat; 11. Oil channel after oil pump; 12. Oil channel before filter; 2. Box-type oil cooler; 21. First overflow pipe; 22. Second overflow pipe; 3. Oil filter seat; 31. Oil channel before oil filter; 32. Oil channel after oil filter; 33. Main oil channel after filter; 4. Oil filter; 41. Check valve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The embodiment of the utility model discloses a lubrication system with anti-backflow oil storage, which is composed of an oil storage box-type oil cooler 2, an oil filter 4 with a check valve 41, an oil filter seat 3 with a high oil level design, and an oil cooler seat 1 with an oil channel.

[0024] Its main use is through Figure 2 Box type oil cooler with overflow pipe 2, Figure 3 Oil filter seat with high oil channel design 3. Figure 4 The oil filter 4 with a check valve 41 and Figure 1 The oil cooler seat 1 is connected to the box-type oil cooler 2 and the oil filter seat 3 with related pipes to store a large amount of oil. When the engine is stopped, the oil in the box-type oil cooler 2 and the oil cooler seat 1, the oil filter seat 3, and the oil filter 4 will be stored in the corresponding parts.

[0025] The oil storage box-type oil cooler 2 is placed horizontally on the top of the engine. A first overflow pipe 21 and a second overflow pipe 22 are welded in the inlet and outlet oil channels of the oil cooler. The oil at the oil pump outlet enters the inlet oil channel of the box-type oil cooler 2 through the oil pump rear oil channel 11 in the oil cooler seat 1, and is diverted to each layer of fins along the first overflow pipe 21. After being cooled by the coolant, the oil flows to the oil outlet of the box-type oil cooler 2. Because the inlet and outlet have the first overflow pipe 21 and the second overflow pipe 22 respectively, and there is a certain gap between the overflow pipe mouth and the outermost layer of the box-type oil cooler 2, it can not only ensure that the oil flows smoothly through each layer of fins, but also prevent the oil in the oil cooler from flowing back to the oil pan when the engine is stopped.

[0026] The cooled oil flows through the pre-filter oil passage 12 in the oil cooler housing 1 into the oil filter housing 3, then through the oil chamber of the pre-filter oil passage 31 into the oil filter 4. After being filtered by the oil filter 4, the oil flows through the post-filter oil passage 32 into the main oil passage 33. The oil on the left side of the oil filter housing 3, below plane A, remains in the left area when the engine is stopped. The oil in the B-side area is the oil chamber behind the box-type oil cooler 2 and before the oil filter 4. Because the box-type oil cooler 2 has overflow pipes (first overflow pipe 21 and second overflow pipe 22), this oil also remains in the B-side oil chamber when the engine is stopped. Similarly, the oil in the pre-filter oil passage 12 in the oil cooler housing 1, which connects the box-type oil cooler 2 and the oil filter housing 3, also remains in the oil cooler housing 1.

[0027] A check valve 41 is arranged in the horizontal oil filter 4. When the engine is stopped, due to the action of the check valve 41, the oil in the oil filter 4 remains in the filter and does not flow back into the oil filter seat.

[0028] The utility model adopts an overflow pipe, a check valve 41, and a high oil level design of the filter seat to reduce the oil in the lubrication system oil circuit from flowing back to the oil pan after the engine is stopped. The utility model structure is conducive to quickly building up the oil pressure of heavy-duty engines and reducing the wear of the friction pairs.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lubrication system with anti-backflow oil storage, characterized in that: The invention comprises an oil cooler seat (1), a box-type oil cooler (2) arranged on the oil cooler seat (1), an oil filter seat (3) arranged on one side of the oil cooler seat (1), and an oil filter (4) arranged on one side of the oil filter seat (3), wherein the oil cooler seat (1) is provided with an oil pump rear oil passage (11) and a filter front oil passage (12), and the box-type oil cooler (2) is provided with an oil pump rear oil passage (11) and a filter front oil passage (12). The oil filter seat (3) is provided with an oil filter front oil passage (31) communicating with the oil filter front oil passage (12), the oil filter (4) is connected to the oil filter front oil passage (31), and the oil filter seat (3) is further provided with an oil filter rear oil passage (32) communicating with the oil filter (4).

2. The lubrication system for anti-backflow oil storage according to claim 1, characterized in that: The box-type oil cooler (2) is of oil storage type.

3. The lubrication system for anti-backflow oil storage according to claim 2, characterized in that: A check valve (41) is provided in the oil filter (4).

4. The lubrication system for anti-backflow oil storage according to claim 3, characterized in that: The oil filter seat (3) is set at a high oil level.

5. The lubrication system for anti-backflow oil storage according to claim 4, characterized in that: The box-type oil cooler (2) can be placed horizontally on the top of the engine.

6. The lubrication system for anti-backflow oil storage according to claim 5, characterized in that: The engine oil can enter the inlet oil passage of the box-type engine oil cooler (2) through the oil pump rear oil passage (11) in the oil cooler seat (1), and be diverted to each layer of fins along the first overflow pipe (21). After being cooled by the coolant, the engine oil flows to the oil outlet of the box-type engine oil cooler (2). The oil inlet and outlet respectively have the first overflow pipe (21) and the second overflow pipe (22), and there is a certain gap between the overflow pipe opening and the outermost layer of the box-type engine oil cooler (2).

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