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An inner casing for installation in a rotor type oil pump body

A rotor-type oil pump and inner casing technology, applied in the field of inner casing, can solve problems such as temperature rise of lubricating oil, affecting engine oil lubrication effect, safe operation of engine, and viscosity drop

Active Publication Date: 2019-07-30
HUNAN JIALI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The continuous increase of oil pressure will cause the temperature of lubricating oil to rise and the viscosity to drop, which will affect the lubricating effect of the oil and the safe operation of the engine.

Method used

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  • An inner casing for installation in a rotor type oil pump body
  • An inner casing for installation in a rotor type oil pump body

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Embodiment Construction

[0018] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0019] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", etc. or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should ...

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Abstract

The invention provides an inner housing used for being mounted in a pump body of a rotor type oil pump. The inner housing is composed of an annular wall plate and a bottom plate. An eccentric round hole and two arc-shaped through holes are formed in the bottom plate, and the two arc-shaped through holes are located in the two sides of the round hole correspondingly. A spring pressing block which protrudes outwards is arranged on the wall plate of the inner housing, and at least two long strip-shaped guide holes are formed in the wall plate of the inner housing. The hollow portion in the middle of the inner housing forms a rotor cavity. After the inner housing is mounted in a cavity of the pump body, the positions of the two arc-shaped through holes correspond to the positions of an oil inlet cavity and an oil outlet cavity in the pump body separately, the position of the round hole corresponds to the position a shaft hole of the pump body, and the diameter of the round hole is larger than that of the shaft hole of the pump body.

Description

technical field [0001] The invention relates to an engine lubricating system, in particular to an inner housing for installation in a rotor type oil pump body. Background technique [0002] The rotor type oil pump is mainly composed of inner and outer rotors, oil pump body and oil pump cover and other parts. Both the active inner rotor and the driven outer rotor are installed in the rotor cavity of the pump body. The inner rotor is fixed on the drive shaft, and the outer rotor can rotate freely in the rotor cavity. There is a certain eccentric distance between the two. The inner rotor drives the outer rotor to rotate in the same direction. [0003] Generally, the inner rotor of the rotor type oil pump has 4 or more convex teeth, and the number of concave teeth of the outer rotor is one more than the number of convex teeth of the inner rotor, so that the inner and outer rotors can rotate in the same direction without synchronization. The outline shape curve is a trochoid. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C15/00F01M1/02
CPCF01M1/02F01M2001/0238F04C15/00F04C2240/30
Inventor 许仲秋刘铁飞
Owner HUNAN JIALI MACHINERY
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