| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerant flow control valve such as a dry control valve for actualizing quick change-over with electromagnetic force while reducing pressure loss during cooling/heating operation. SOLUTION: A selector valve 13 is arranged in a valve chest R, and the selector valve 13 is slidable between a first port P1 and a second port P2. In the selector valve 13, a linear conduction passage 13a is provided in parallel to a center axis L. The first port P1 and the second port P2 are conducted via the conduction passage 13a through an approximately linear passage during cooling/heating operation (in a valve opened condition). An electromagnetic coil 17 is energized to form a magnetic circuit passing through a yoke output end 171a, a magnetic pole plate 162, a magnetic pole plate 132, and a yoke output end 172a so that a pilot valve 16 is seated on the selector valve 13. The selector valve 13 is seated on a valve seat 12 with a pressure difference between refrigerant on the side of a first joint pipe 111 and that on the side of a second joint pipe 112 to provide drying operation. A valve body 131 of the selector valve 13 is formed of a resin. COPYRIGHT: (C)2005,JPO&NCIPI
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