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Leakless plane type pure water electrohydraulic change valve

A pure hydroelectric, planar technology, applied in the field of hydraulic components, can solve the problems of impurity jamming, application restrictions, increase processing difficulty and processing cost, etc., and achieve the goals of preventing cavitation, good versatility, and reducing cavitation and fluid noise Effect

Inactive Publication Date: 2005-03-02
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce leakage, this type of valve designs the matching gap between the valve core and the valve sleeve to be very small. Such a small gap puts forward very strict requirements for the processing technology of the valve, which greatly increases the processing difficulty and processing cost.
In addition, such a small gap is also easily blocked by impurities, so its application is greatly limited

Method used

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  • Leakless plane type pure water electrohydraulic change valve
  • Leakless plane type pure water electrohydraulic change valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Such as figure 1 , figure 2 Shown, non-leakage plane type pure water electro-hydraulic directional valve, including:

[0027] 1) The planar main valve core 2 is installed in the left end cover 1, the main valve body 8 and the right end cover 15, the main valve sleeve 20 is installed in the center of the main valve body 8, and the spring 14 installed in the right end hole of the main valve core 2 will The outer shoulder surface of the valve core 2 is pressed against the end surface of the main valve sleeve 20, the main valve sensitive chamber 18 is formed between the right end surface of the main valve core 2 and the hole 15 of the right end cover, and the upper end of the main valve body 8 is provided with a water inlet P and a working port A. The two are connected to each other through the inner flow channel of the main valve sleeve 20, the water inlet P and the working port A are plate-type connections, and the left and right ends of the main valve core 2 are respec...

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PUM

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Abstract

The invention discloses a kind of no leakage and pure water flat electro-hydraulic directional control valve. A king valve cover is in the heart of the king valve and flat king valve core compacted by a spring lies in the cavity of axial of the king valve body; on the upper of king valve body there is a water inlet and a water outlet connected by the king valve's channel; in the king valve there is a sensitive cavity connected with electromagnetic ball valve by tunnels; a valve port damper installed at the valve entrance of electromagnetic ball valve matches with the sensitive cavity of king valve in order to control the flow velocity of fluid and reduce directional strike at the same time diverting fast. The invention adopt flat king valve core set on the packing force of the king valve cover and increase dramatically valve covers, adopt direct seal to realize zero leakage; divert fast and steadily through matching the sensitive cavity of king valve with the damper at the entrance of the electromagnetic ball valve; not change the structure of the king valve and only change structural form of electromagnetic ball valve in order to have different functions and fit to work under conditions of middle and high pressure water medium.

Description

technical field [0001] The invention relates to hydraulic components characterized by hydraulic control technology, in particular to a non-leakage planar pure water electro-hydraulic reversing valve. Background technique [0002] The "environmental revolution" has brought strong "environmental pressure" to the development of hydraulic technology, and the pursuit of non-toxic and pollution-free green fluids that are completely compatible with the environment is being widely valued by the hydraulic industry in all countries in the world. Pure water hydraulic technology has become a research hotspot in the field of international fluid transmission and control because of its unique advantages of wide source of media, environmental friendliness, cleanliness, safety and good flame retardancy. As one of the most critical valve components in the pure water hydraulic system, the pure water reversing valve has also become the focus of research. [0003] Most of the traditional hydrau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/044F16K31/06
Inventor 周华弓永军杨华勇
Owner ZHEJIANG UNIV
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