CN217327457U

CN217327457U - Oil pan structure

Info

Publication number: CN217327457U
Application number: CN202221358023.6U
Authority: CN
Inventors: 陈道富; 姚俊杰; 吴宇; 潘徐刚
Original assignee: Taizhou Jiuyi Electromechanical Co ltd
Current assignee: Taizhou Jiuyi Electromechanical Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-08-30
Anticipated expiration: 2032-05-31

Abstract

The utility model provides an oil pan structure belongs to oil pump assembly technical field. The oil pan solves the technical problem of reasonable assembly of the oil pan arrangement structure with a variable-displacement oil pump. This oil pan structure includes the casing, the inner wall of casing has the holding chamber that the arch formed and was used for the holding oil filter, and this casing inner chamber has the installation cavity that is used for the holding oil pump, the installation cavity with holding chamber adjacent arrangement has the inlet port that is used for communicateing oil filter and oil pump oil-out, is used for the feedback oilhole that is used for with the oil filter export intercommunication and is used for with the feedback chamber intercommunication of oil pump on the outer wall in this holding chamber, the feedback oilhole can with the outlet port intercommunication. The utility model discloses it is stable to do benefit to the discharge capacity regulatory function of assurance oil pump.

Description

Oil pan structure

Technical Field

The utility model belongs to the technical field of the oil pump assembly, a oil pan structure is related to.

Background

The oil pan is the lower half of the crankcase, also known as the lower crankcase. The function is to close the crankcase as the housing of the oil sump, prevent impurities from entering, and to collect and store the lubricating oil flowing back from the friction surfaces of the diesel engine, to dissipate part of the heat and to prevent the lubricating oil from being oxidized. The oil pump is used for forcibly pressing and conveying the oil to the moving surfaces of various parts of the engine after the oil is increased to a certain pressure.

Chinese patent No. CN208518724U discloses an engine assembly and a vehicle. The engine assembly includes: an oil pan integrated with an oil filter base; an oil pump configured to pump oil within an oil pan; an oil cooler disposed in a downstream region of the oil pump and configured to receive the oil pumped by the oil pump and cool the oil; an oil filter disposed within the oil filter base configured to receive the cooled oil and filter it.

The above structure is compact, but for the oil pump with variable displacement, it needs to provide a feedback oil path to adjust the displacement, and the above structure does not disclose a reliable and stable feedback oil path arrangement structure.

Disclosure of Invention

The utility model discloses to the above-mentioned problem that prior art exists, provide an oil pan structure, the utility model aims to solve the technical problem that: and the stable effect of adjusting the discharge capacity of the oil pump is ensured.

The purpose of the utility model can be realized by the following technical proposal:

the oil pan structure comprises a shell and is characterized in that an accommodating cavity which is formed in an arched mode and used for accommodating an oil filter is formed in the inner wall of the shell, an installation cavity used for accommodating an oil pump is formed in the inner cavity of the shell, the installation cavity is arranged adjacent to the accommodating cavity, an oil inlet hole used for communicating the oil filter and an oil outlet of the oil pump, an oil outlet hole used for communicating with an outlet of the oil filter and a feedback oil hole used for communicating with a feedback cavity of the oil pump are formed in the outer wall of the accommodating cavity, and the feedback oil hole can be communicated with the oil outlet hole.

The shell is the main body of the oil sump, the oil pump is the prior art, the adjusting slide block in the oil pump adjusts the position by the engine oil in the feedback cavity to realize the displacement adjustment, the accommodating cavity is arranged on the outer side wall of the shell to install the oil filter, the oil pump can be installed in the adjacent installation cavity at the same time, the oil pump and the oil filter can be closer, the outer wall of the accommodating cavity is provided with an oil inlet hole, an oil outlet hole and a feedback oil hole, the oil in the oil pump is guided into the oil filter by the oil inlet hole, the filtered engine oil flows out from the oil outlet hole and can return to the feedback cavity in the oil pump through the feedback oil hole, the adjusting slide block in the oil pump is driven by the oil pressure to realize the displacement adjustment, thus the engine oil entering the feedback cavity can be filtered by the oil filter, the blockage of the narrow feedback oil passage caused by impurities is avoided, the adjusting function is ensured to be stable, and the oil filter and the oil pump are arranged adjacent to the oil pump, reduce the oil pressure loss, guarantee that the regulation effect is stable.

In the oil pan structure described above, the inner edge of the oil outlet hole has a branch passage extending in the radial direction, the branch passage being capable of communicating with the feedback oil hole. The engine oil filtered in this way enters the feedback oil hole through the branch passage of the oil outlet hole, and the influence of the direct impact of the engine oil on the feedback oil hole on the real adjusting effect can be avoided.

In the oil pan structure, the branch passage and the feedback oil hole can be switched on and off through the electromagnetic valve. The branch passage and the feedback oil hole can be switched on and off by the electromagnetic valve, so that the switching control efficiency is ensured.

In the oil pan structure, the outer wall of the accommodating cavity is provided with a flat mounting surface, and the feedback oil hole and the oil inlet hole are adjacently arranged and are both positioned on the mounting surface. Therefore, the assembly position of the oil pump on the shell can be ensured to be more compact, and the sealing effect of the joint of the assembled oil pump can be ensured.

In the oil pan structure, the feedback oil hole is kidney-shaped. Therefore, the flow cross section of the feedback oil path is ensured, and the feedback response effect is favorably ensured.

In the oil pan structure, the mounting surface is further provided with a mounting hole for fixing the oil pump, and the mounting hole is located between the feedback oil hole and the oil inlet hole. Therefore, when the oil pump is installed on the shell, the oil pump can be inserted into the installation hole through the fastening piece, and meanwhile, the oil pump is tightly pressed on the peripheral area of the feedback oil hole and the oil inlet hole, so that a more stable connection effect is ensured.

Compared with the prior art, the utility model has the advantages as follows:

the machine oil that gets into the feedback chamber in this oil pan structure all can avoid impurity to cause narrow and small feedback oil circuit to block up through the filtration of oil filter, guarantees that regulatory function is stable, and oil filter and machine oil pump adjacent arrangement reduce the oil pressure loss simultaneously, guarantee to adjust the effect stable.

Drawings

Fig. 1 is a schematic top view of the present embodiment.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic bottom view of the present embodiment.

In the figure, 1, a housing; 2. an accommodating cavity; 3. a mounting cavity; 4. an oil inlet hole; 5. an oil outlet hole; 6. a feedback oil hole; 7. a branch passage; 8. a mounting surface; 9. and (7) mounting holes.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 3, the oil pan structure includes a housing 1, an inner wall of the housing 1 has an accommodating chamber 2 formed by being arched inward and used for accommodating an oil filter, an inner cavity of the housing 1 has a mounting chamber 3 used for accommodating an oil pump, the mounting chamber 3 is arranged adjacent to the accommodating chamber 2, an oil inlet 4 used for communicating the oil filter and an oil outlet of the oil pump, an oil outlet 5 used for communicating with an outlet of the oil filter, and a feedback oil hole 6 used for communicating with the feedback chamber of the oil pump are arranged on an outer wall of the accommodating chamber 2, and the feedback oil hole 6 can be communicated with the oil outlet 5. The shell 1 is a main body of an oil sump, the oil pump is in the prior art, an adjusting slide block in the oil pump adjusts the position by the engine oil in a feedback cavity to realize displacement adjustment, an accommodating cavity 2 is arranged on the outer side wall of the shell 1 to install an oil filter, the oil pump can be installed in an adjacent installation cavity 3 at the same time, the oil pump and the oil filter can be closer, an oil inlet 4, an oil outlet 5 and a feedback oil hole 6 are arranged on the outer wall of the accommodating cavity 2, the oil inlet 4 guides the engine oil in the oil pump into the oil filter, the filtered engine oil flows out from the oil outlet 5 and can return to the feedback cavity in the oil pump through the feedback oil hole 6, the oil pump is the existing oil pump with adjustable displacement, the displacement adjustment of the adjusting slide block in the oil pressure driving oil pump is realized, the engine oil entering the feedback cavity can be filtered, and the blockage of a feedback oil circuit caused by impurities is avoided, the stable regulating function is ensured, and meanwhile, the oil filter and the oil pump are arranged adjacently, so that the oil pressure loss is reduced, and the stable regulating effect is ensured. Further, the inner edge of the oil outlet hole 5 is provided with a branch passage 7 extending along the radial direction, and the branch passage 7 can be communicated with the feedback oil hole 6. The filtered engine oil enters the feedback oil hole 6 through the branch passage 7 of the oil outlet 5, so that the influence of the engine oil on the real adjusting effect by directly flushing the feedback oil hole 6 can be avoided. The branch passage 7 and the feedback oil hole 6 are switched on and off through an electromagnetic valve. The electromagnetic valve is arranged between the branch passage 7 and the feedback oil hole 6 in the prior art, so that the branch passage 7 and the feedback oil hole 6 can be switched on and off under the control of the electromagnetic valve, and the switching control efficiency is ensured. The outer wall of the accommodating cavity 2 is provided with a flat mounting surface 8, and the feedback oil hole 6 and the oil inlet hole 4 are adjacently arranged and are both positioned on the mounting surface 8. Therefore, the assembly position of the oil pump on the shell 1 can be ensured to be more compact, and the sealing effect of the joint of the assembled oil pump can be ensured. The feedback oil hole 6 is waist-shaped. Therefore, the flow cross section of the feedback oil path is ensured, and the feedback response effect is favorably ensured. The mounting surface 8 is also provided with a mounting hole 9 for fixing an oil pump, the mounting hole 9 is provided with an internal thread (not shown), and the mounting hole 9 is positioned between the feedback oil hole 6 and the oil inlet hole 4. Therefore, when the oil pump is arranged on the shell 1, the oil pump can be inserted into the mounting hole 9 through the bolt, and simultaneously the oil pump is tightly pressed on the peripheral areas of the feedback oil hole 6 and the oil inlet hole 4, so that a more stable connection effect is ensured.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. An oil pan structure comprises a shell (1), and is characterized in that an accommodating cavity (2) formed by arching and used for accommodating an oil filter is formed in the inner wall of the shell (1), an installation cavity (3) used for accommodating an oil pump is formed in the inner cavity of the shell (1), the installation cavity (3) is arranged adjacent to the accommodating cavity (2), an oil inlet hole (4) used for communicating the oil filter and an oil outlet of the oil pump, an oil outlet hole (5) used for communicating with an outlet of the oil filter and a feedback oil hole (6) used for communicating with a feedback cavity of the oil pump are formed in the outer wall of the accommodating cavity (2), and the feedback oil hole (6) can be communicated with the oil outlet hole (5).

2. An oil pan structure according to claim 1, characterised in that the inner edge of the oil outlet hole (5) has a radially extending branch passage (7), which branch passage (7) can communicate with the feed-back oil hole (6).

3. An oil pan structure according to claim 2, characterized in that the branch passage (7) and the feedback oil hole (6) can be opened and closed by a solenoid valve.

4. Oil pan structure according to claim 1, 2 or 3, characterised in that the outer wall of the receiving chamber (2) has a flat mounting surface (8), the oil feed holes (6) being arranged adjacent to the oil inlet hole (4) and all being located on the mounting surface (8).

5. Oil pan structure according to claim 1, 2 or 3, characterised in that the oil feedback hole (6) is kidney-shaped.

6. An oil pan structure according to claim 4, characterized in that the mounting surface (8) is further provided with a mounting hole (9) for fixing the oil pump, and the mounting hole (9) is located between the feedback oil hole (6) and the oil inlet hole (4).