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Oil pump

A technology for oil pumps and pump bodies, applied in the field of oil pumps, can solve the problems of large contact area, large friction force, and large energy consumption, and achieve the effects of reducing contact area, reducing mechanical wear, and reducing energy consumption

Active Publication Date: 2021-07-30
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: the outer wall of the outer rotor is completely attached to the housing, and when the inner rotor and the outer rotor rotate, there is a gap between the outer wall of the outer rotor and the oil pump housing. The contact area is larger, the friction force is larger, so that the energy consumption is larger

Method used

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Embodiment Construction

[0052] Reference will now be made in detail to exemplary embodiments of which are illustrated in the accompanying drawings. When the following description refers to reference numerals, unless otherwise indicated, the same reference numerals in different embodiments refer to the same or similar elements.

[0053] The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of structures consistent with aspects of the invention as recited in the appended claims.

[0054] An embodiment of the present application provides an oil pump, including a pump body, a pump cover, a rotor shaft, an inner rotor, an outer rotor, and a pressure limiting valve. The pump body is detachably connected to the pump cover; the inner rotor is sleeved on the rotor shaft, and the outer rotor meshes with the inner rotor; the pump body is formed with an oil inlet chamber, an oil outlet chamber ...

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Abstract

The invention belongs to the technical field of automobile lubricating systems, in particular to an oil pump. The oil pump includes a pump body (1), a pump cover (2) detachably connected to the pump body (1), a rotor shaft (3), an inner rotor (4) sleeved on the rotor shaft (3), and The inner rotor (4) meshes with the outer rotor (5) and the pressure limiting valve (6). The pump body (1) is formed with an oil inlet chamber (11), an oil outlet chamber (12) and a connection chamber (13) with a connecting part (131) on the lower side, the outer wall of the connecting part (131) and the inner wall of the pump body (1) There is a first groove (14) between them; the pump body (1) is provided with an oil outlet (121) communicating with the oil outlet chamber (12); the pump cover (2) is provided with a ) connected to the oil inlet (212); the pump body (1) is provided with an oil discharge port (15) controlled by the pressure limiting valve (6) and connected to the oil inlet chamber (11). The oil pump can reduce energy loss caused by mechanical friction.

Description

technical field [0001] The invention relates to the technical field of automobile lubricating systems, in particular to an oil pump. Background technique [0002] One of the reasons for the high fuel consumption of automobiles is the mechanical loss caused by motion friction. Therefore, when the development of reducing fuel consumption and heat release has reached the bottleneck stage, reducing energy consumption by reducing motion friction has become an urgent problem to be solved. [0003] At present, in the oil pump of automobile engine, the inner rotor is fixed on the rotor shaft, and the outer wall of the outer rotor is attached to the oil pump casing. When the inner rotor and the outer rotor rotate with each other, the inner rotor and the outer rotor have a difference in offset. The outer rotor carries the oil from the inlet chamber to the outlet chamber. [0004] In the process of realizing the present invention, the inventor found that the prior art has at least the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16N13/20
CPCF16N13/20
Inventor 倪伟张欣林
Owner CHERY AUTOMOBILE CO LTD