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Set in use for turning on and off opening of channel inside valve body

An inner channel and orifice technology is applied in the field of devices for opening and closing channel orifices located in the valve body, which can solve the problems of noise and easy resonance, and achieve the effect of avoiding noise, increasing the natural frequency value, and avoiding the phenomenon of resonance.

Inactive Publication Date: 2007-02-21
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Easy to generate resonance and cause noise

Method used

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  • Set in use for turning on and off opening of channel inside valve body
  • Set in use for turning on and off opening of channel inside valve body
  • Set in use for turning on and off opening of channel inside valve body

Examples

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Embodiment Construction

[0014] Such as figure 1 As shown, the structure of the present invention includes a spring cover 1, a steel ball 2, a spring 3 and a slotted adjustment seat 4, the wall of the spring cover 1 is matched with the inner wall of the slotted adjustment seat 4, the spring 3 is placed in the spring cover 1, and the steel The ball 2 is welded together with the spring sleeve 1, and the spring sleeve 1 is installed in the slotted adjustment seat 4.

[0015] The main difference between the present invention and the prior art is that a spring sleeve 1 and a slotted adjustment seat 4 are used. There are three flanges 5 punched out on the spring sleeve 1, and three grooves 6 matching the size of the flanges 5 are arranged in the slotted adjustment seat 4. The spring cover 1 is welded with the steel ball and placed on the upper end of the spring 3, and then puts into the slotted adjustment seat 4, and the three convex edges 5 cooperate with the three grooves. When disturbed by the outside ...

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PUM

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Abstract

A device used for opening and closing channel ports in valve body is prepared as coordinating the housing wall of spring housing with internal wall of open-slot regulation base, setting spring in spring housing, welding steel balls with spring housing and erecting said spring housing in said open-slot regulation base.

Description

technical field [0001] The invention relates to a device in the field of mechanical technology, in particular to a device for opening and closing a channel orifice located in a valve body. Background technique [0002] Existing vehicle air-conditioning systems generally use thermal expansion valves as throttling devices. At present, the most used and more advanced technology is the integral thermal expansion valve, also known as H-type expansion valve. This expansion valve is installed at the inlet and outlet of the evaporator. between the tubes. The upper end of the expansion valve is directly exposed to the working fluid at the outlet of the evaporator, which can sense the temperature of the working fluid at the outlet without being affected by the ambient temperature, and does not need to pass through the capillary to cause time lag, which improves the adjustment sensitivity. However, according to the reports of many vehicle air-conditioning system manufacturers, it was ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F25B41/06
Inventor 陈江平施骏业
Owner SHANGHAI JIAO TONG UNIV
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