Channel-switching valve and method of controlling the same, and refrigerating cycle and method of controlling the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 15, 2001
Grant Date -
N/A
app pub date -
Apr 4, 2000
filing date -
Aug 6, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A channel-switching valve is provided. The channel-switching valve comprises: a cylindrical valve housing whose one end is closed by a main valve seat; a low pressure outlet and two connecting holes for connecting the inside and the outside of the valve housing; a high pressure inlet for connecting the inside and the outside of the valve housing; and a connecting groove and a guide groove formed on an end surface of a main vale element which is accommodated in the valve housing. When the main valve element is situated in a first rotation position, one of the connecting holes is connected to the low pressure outlet by the connecting groove while the other one of the connecting holes is connected to the high pressure inlet. When the main valve element is situated in a second rotation position, the other one of the connecting holes is connected to the low pressure outlet by the connecting groove while the one of the connecting holes is connected to the high pressure inlet by the guide groove.
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