| 摘要 |
PROBLEM TO BE SOLVED: To effectively reduce refrigerant flow noise in passing a gas-liquid two-phase refrigerant, and to secure reliability of a flow control valve for a long period by using a porous permeation material, in the flow control valve capable of improving temperature and humidity controllability of a refrigeration cycle. SOLUTION: A valve seat 23 having an opening connected with one of two flow channels 21, 22 is fixed in a valve chest 26, and a valve element 24 operated in the valve chest 26 for opening and closing the opening comprises a through-flow channel penetrated in the valve element 24 for allowing the opening to be communicated with the other of two flow channels 21, 22. The porous permeable material 30 having a pore diameter of 100 micrometer or more, is mounted in the valve element 24 to allow the fluid flowing in the through-flow channel to pass therethrough. The fluid flowing between two flow channels 21, 22 is passed through the porous permeable material of the through-flow channel, thus its pressure is reduce, when the opening is closed by the valve element 24. COPYRIGHT: (C)2006,JPO&NCIPI
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