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Oil pump one-way valve

A technology of one-way valve and oil pump, which is applied in the direction of lubricating oil control valve, valve details, control valve, etc., can solve the problem of sealing of one-way valve of oil pump for drones, and achieve the effect of prolonging the service life

Inactive Publication Date: 2021-02-09
CHINA NORTH ENGINE INST TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention aims to propose an oil pump check valve to solve the sealing problem of the oil pump check valve for unmanned aerial vehicles

Method used

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  • Oil pump one-way valve

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Embodiment Construction

[0014] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0015] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides an oil pump one-way valve which comprises a shell, a valve body, a lining, a steel ball and a spring, the valve body, the lining, the steel ball and the spring are arranged in the shell, and the spring is supported between the valve body and the steel ball and used for tightly pressing the steel ball at the opening end of the lining; and chamfers of the contact faces of thelining and the steel ball are fillets, and the surface of the steel ball is covered with a wrapping layer made of carbon fiber material or oil-resistant plastic material. According to the oil pump one-way valve, a layer of carbon fiber or other materials with good oil-resistant plasticity and a reasonable collision surface structure are additionally arranged on the surface of the steel ball, deformation damage cannot be generated after multiple times of collision, and the sealing effect cannot be affected. The problem that the sealing effect is poor due to the fact that the oil pump for an unmanned aerial vehicle is frequently opened is solved, and the service life of the one-way valve in the using process is prolonged through reasonable material selection and structural design.

Description

technical field [0001] The invention belongs to the technical field of piston engines, in particular to an oil pump check valve. Background technique [0002] Check valves, also known as check valves or check valves, are used in hydraulic systems to prevent reverse flow of oil flow, or in pneumatic systems to prevent reverse flow of compressed air. The structure of the check valve is generally sealed by a steel ball and the sealing surface of the valve body. [0003] In the existing technology, due to the harsh application scenarios of drones, the one-way valve needs to be opened frequently. The steel ball of the traditional one-way valve collides with the contact surface many times, resulting in shallow pits, which affects the sealing effect. Contents of the invention [0004] In view of this, the present invention aims to propose an oil pump check valve to solve the sealing problem of the oil pump check valve for unmanned aerial vehicles. [0005] In order to achieve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/04F16K27/02F16N23/00
CPCF16K15/048F16K27/0245F16N23/00
Inventor 李元石郝勇刚刘长振张志军王旭兰李旭东陈晓飞
Owner CHINA NORTH ENGINE INST TIANJIN
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