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An oil pump with a segmented crescent plate

A crescent plate and segmented technology, which is applied in the direction of rotary piston/oscillating piston pump components, rotary piston pumps, pumps, etc., can solve the problem that the volumetric efficiency of the oil pump cannot be balanced by the friction and interference of the crescent plate

Active Publication Date: 2021-06-18
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide an oil pump with a segmented crescent plate, aiming to improve the technical problem in the prior art that the volumetric efficiency of the oil pump and the frictional interference of the crescent plate cannot be balanced

Method used

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  • An oil pump with a segmented crescent plate
  • An oil pump with a segmented crescent plate

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Embodiment Construction

[0025] Next, the technical solutions in the embodiments of the present invention will be described in contemplation in the embodiments of the present invention, and clearly, as described herein is merely, not all of the embodiments of the present invention. Based on the embodiments of the present invention, those of ordinary skill in the art will belong to the scope of the present invention without all other embodiments obtained without creative labor.

[0026] It should be noted that if there is a directional indication in the embodiment of the present invention, the directional indication is only used to explain the relative positional relationship between the components in a particular attitude, and the motion condition, etc. if the particular attitude is changed. Then, the directional indication is also changed accordingly.

[0027] Further, in the embodiment of the present invention relates to a description of "first", "second", the description of the "first", "second", etc.,...

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Abstract

The invention discloses an oil pump with a segmented crescent plate, which includes a pump body, an outer rotor, an inner rotor and a crescent plate. The pump body is provided with a rotor cavity, the outer rotor is installed in the rotor cavity, and the inner rotor is eccentrically installed in the outer rotor. , and is meshed with the outer rotor; the crescent plate is set in the rotor cavity, and divides the cavity between the inner rotor and the annular outer rotor into a high-pressure cavity and a low-pressure cavity. The crescent plate has a first arc surface close to the high-pressure cavity, and a The gap between the second arc surface of the low-pressure cavity, the first arc surface and the corresponding tooth surface of the inner rotor is smaller than the gap between the second arc surface and the corresponding tooth surface of the inner rotor. The invention discloses an oil pump with segmented crescent plates. Under various working pressures, the crescent plates will not be scratched and the volumetric efficiency of the oil pump will not be reduced.

Description

Technical field [0001] The present invention relates to an inner meshing gear pump technology, and more particularly to a oil pump with a segmented moon. Background technique [0002] The oil pump is the power component of the hydraulic system, wherein the multi-tootic intermeshing gear pump is widely used in the hydraulic system of the automobile engine and the gearbox due to the advantages of low cost, low noise, high volume efficiency. Since the rotor has a high-speed relative movement with the moon toothboard, there is a gap between the outer and rotors. One technical solution in the prior art is the overall increase of gaps. The deficiencies of this protocol are too large, and the isolation effect of high pressure cavities and low pressure cavities is poor. There are more high-pressure oils from high pressure cavity to low pressure when the oil pump is working. Cavity. Another technical solution is that the inner arc of the crescent plate is shifted in the force direction. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/10F04C15/00
CPCF04C2/082F04C2/084F04C2/102
Inventor 徐诚杨士先张保良王中华
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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