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Method for improving flexibility of hydraulic valve assembly and valve assembly

A valve assembly and flexibility technology, applied in the field of hydraulic valves, can solve the problems of poor flexibility, easy sticking, and easy wear of the valve assembly, and achieve the effects of reducing processing and maintenance costs, low maintenance costs, and optimizing product structure

Inactive Publication Date: 2019-07-02
GUIZHOU HONGLIN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a method for improving the flexibility of a hydraulic valve assembly and a valve assembly to solve the technical problems of poor flexibility, easy sticking, easy wear, and low life of the prior art valve assembly, thereby overcoming the existing technical problems. lack of technology

Method used

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  • Method for improving flexibility of hydraulic valve assembly and valve assembly
  • Method for improving flexibility of hydraulic valve assembly and valve assembly
  • Method for improving flexibility of hydraulic valve assembly and valve assembly

Examples

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Embodiment

[0020] In this example, three circles of 4×Φ1.5 oil injection holes 5 are added on the bushing 1 . The oil injection hole 5 injects fuel oil of the same pressure into the valve 2 and the bushing 1 to ensure that the valve 2 is suspended in the center of the bushing 1, and a complete oil film 6 is formed between the valve 2 and the bushing 1, so that the valve 2 is suspended state. In addition, the thin ring groove 7 on the valve 2 of the prior art is cancelled, the possibility of contacting the sharp edge of the thin ring groove 7 with the bushing 2 is reduced, the friction between the valve components is effectively reduced, the movement speed of the valve 2 is improved, and the valve is avoided. The possibility of sticking increases the service life of the valve.

[0021] 5 circles of oil filling holes on the bushing 1 can be determined according to the length of the valve assembly, and the number of 5 circles of oil filling holes on the bushing 1 of the shorter valve assem...

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Abstract

The invention discloses a method for improving the flexibility of a hydraulic valve assembly and the valve assembly. A set of oil filling holes are formed in a bushing, pressure oil is injected into the bushing through the oil filling holes, a uniform oil film layer is formed between the bushing and a valve, and thus the valve suspends in oil in the center of the bushing; and friction with the bushing when the valve moves axially is avoided, frictional resistance is reduced, the flexibility and moving speed of the valve are improved, and the service life of the valve assembly is prolonged.

Description

technical field [0001] The invention relates to a method for improving the flexibility of a hydraulic valve assembly and the valve assembly, belonging to the technical field of hydraulic valves. Background technique [0002] The gap between the mechanical hydraulic valve components of general aviation fuel control systems is very small, the supporting area between the valve components is relatively large, the flexibility of the valve components is relatively poor, and the valve components are easy to be stuck, easy to wear, and have a low service life. In order to reduce friction, usually a few circles of small annular grooves are added to the outer circle of the valve to ease the friction of the valve assembly, but the effect is not ideal. Contents of the invention [0003] The object of the present invention is to provide a method for improving the flexibility of the hydraulic valve assembly and the valve assembly, so as to solve the technical problems of poor flexibilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/232
CPCF02C7/232
Inventor 张雄矫政海王文
Owner GUIZHOU HONGLIN MACHINERY