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Eccentrically-adjusted variable rotor oil pump

A rotor oil pump and variable variable technology, which is applied in the direction of lubricating pumps, mechanical equipment, engine components, etc., can solve the problems of reducing engine economy and increasing engine power loss, and achieves the effects of simple structure, improved safety, and extended service life

Active Publication Date: 2011-05-11
HUNAN OIL PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the pressure limiting valve to control the oil pressure will increase the engine power loss and reduce the economy of the engine during use.

Method used

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  • Eccentrically-adjusted variable rotor oil pump
  • Eccentrically-adjusted variable rotor oil pump
  • Eccentrically-adjusted variable rotor oil pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] An eccentrically regulated variable rotor oil pump is composed of a pump body 1 , a pump cover 2 , an outer rotor 3 , an inner rotor 4 , an eccentric ring with outer teeth 5 , a retaining pin 6 , a rack valve part 7 and a safety valve part 8 . An oil inlet chamber 11 and an oil outlet chamber 12 as well as an oil inlet 13 and an oil outlet 14 are arranged on the inner side and the bottom surface of the pump body 1, the oil inlet chamber 11 communicates with the oil inlet 13, and the oil outlet chamber 12 communicates with the oil outlet 14 , the oil inlet chamber 11 and the oil outlet chamber 12 are distributed on both sides of the rotor bottom surface and the outside, the oil inlet 13 communicates with the oil absorber, and the oil outlet 14 communicates with the oil passage of the engine. An oil inlet passage 15 and an oil outlet passage 16 are arranged in the pump body 1 , the oil inlet passage 15 communicates with the oil inlet 13 , and the oil outlet passage 16 comm...

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Abstract

The invention discloses an eccentrically-adjusted variable rotor oil pump. The oil pump consists of a pump body, a pump cover, an outer rotor, an inner rotor, an external tooth eccentric ring, a stop pin, a rack valve component and a safety valve component, wherein the pump body is provided with a rack valve hole for installation of the rack valve component, a safety valve hole for installation of the safety valve component and a limiting stop pin; the rack valve component is arranged in the rack valve hole; the safety valve component is arranged in the safety valve hole; the external tooth eccentric ring is arranged in an external tooth eccentric ring installation hole on the pump body; a limiting arc-shaped groove on the external tooth eccentric ring is aligned with the limiting stop pin on the pump body; the limiting stop pin is inserted into the limiting arc-shaped groove; and an external tooth of the external tooth eccentric ring is aligned with a rack which is arranged on a valve core of the rack valve in the rack valve hole, and is meshed with the rack on the valve core of the rack valve. After being matched with each other, the inner rotor and the outer rotor are arranged in rotor holes of the external tooth eccentric ring at the same time, and then the pump cover is covered on the pump body at a rotor position.

Description

technical field [0001] The invention relates to a rotor oil pump of an internal combustion engine lubricating system, in particular to an eccentrically regulated variable rotor oil pump. Background technique [0002] The existing rotor oil pump for the engine is a quantitative rotor oil pump. During operation, as the engine speed increases, the oil supply of the rotor oil pump will continue to increase, and the oil pressure in each oil passage will also increase continuously. The oil temperature rises, Viscosity drops, affecting the lubricating effect and the safety of the engine. Usually, a pressure limiting valve is used to control the oil pressure to ensure the normal operation of the engine. However, using the pressure limiting valve to control the oil pressure will increase the engine power loss and reduce the economy of starting during use. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and p...

Claims

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Application Information

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IPC IPC(8): F16N13/20
Inventor 许仲秋刘光明李战训
Owner HUNAN OIL PUMP
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