Second H type automobile air conditioner heat expansion valve with filter structure

A technology of thermal expansion valve and secondary throttling, which is applied in the direction of filtration and separation, device for absorbing fluid energy of the valve, valve lift, etc. It can solve the problems of abnormal operation, no filter structure, difficulty in overcoming thermal expansion valve fluctuations and oscillations, etc. problem, achieve the effect of overcoming fluctuation or oscillation and ensuring normal operation

Inactive Publication Date: 2008-03-05
ZHEJIANG CHUNHUI INTELLIGENT CONTROL +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The H-type automotive air-conditioning thermodynamic expansion valve currently used for throttling in the refrigeration system of the automobile air-conditioning device only uses the bellows to sense the temperature and automatically adjusts the throttling passage section of the valve port to perform one throttling. The passage sections before and after throttling are equal Larger than the maximum cross-section of the throttling channel at the valve port, it is difficult

Method used

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  • Second H type automobile air conditioner heat expansion valve with filter structure
  • Second H type automobile air conditioner heat expansion valve with filter structure
  • Second H type automobile air conditioner heat expansion valve with filter structure

Examples

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Example Embodiment

[0027] The first embodiment of the second throttling H-type automobile air-conditioning thermal expansion valve with filter structure of the present invention is shown in Figure 1:

[0028] The throttle hole 8 is directly processed by the valve body 1. The passage section of the throttle hole 8 is smaller than the maximum cross section of the valve port throttling passage 6. The filter screen 2 is placed between the connecting hole 9 and the valve port before throttling passage 4, and used The circlip 3 is fixed. The working process is shown in Figure 5 and Figure 1:

[0029] The gaseous refrigerant is compressed by the compressor 41 to become a high-pressure and high-temperature gaseous refrigerant, and then condensed into a high-pressure liquid refrigerant by the condenser 42. The high-pressure liquid refrigerant passes through the drying receiver 43 from the secondary throttling H-type automobile air conditioner with a filter structure. The connecting hole 9 of the expansion va...

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Abstract

This invention is a secondary throttle H type vehicle air conditioner thermostatic expansion valve with filter structure. It includes valve body, valve port throttling channel, valve port throttling fore-channel, valve port throttling back-channel and connecting holes. The channel cross section of throttling hole is smaller than the maximum cross section of valve port throttling channel. There is filtering net between connecting hole and valve port throttling fore-channel. It is fixed by clamping spring. High pressure liquid refrigerant undertakes double throttling. It increases the energy efficiency ratio and refrigerating volume. The filtering net can ensure refrigerating system work well.

Description

Technical field [0001] The invention relates to a secondary throttling H-type automobile air conditioning thermal expansion valve with a filter structure, belonging to the throttling technical field of a vapor compression refrigeration system, and is particularly suitable for the refrigeration system of an automobile air conditioning device as a throttling element. Background technique [0002] The H-type automobile air-conditioning thermal expansion valve currently used for throttling of the refrigeration system of automobile air-conditioning devices, only through the bellows feeling temperature, automatically adjusts the valve port throttling channel section for a throttling, the channel sections before and after throttling are both Larger than the maximum cross-section of the throttling passage of the valve port, it is difficult to overcome the general fluctuation and oscillation of the thermal expansion valve, and its connecting hole, liquid inlet and valve body have no filte...

Claims

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Application Information

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IPC IPC(8): F16K1/00F16K47/00F25B41/06B01D35/04
CPCF25B2341/0683
Inventor 邓永林
Owner ZHEJIANG CHUNHUI INTELLIGENT CONTROL
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