Electrically operated switch-over valve
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United States of America Patent
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-
Apr 17, 2007
Grant Date -
Apr 6, 2006
app pub date -
Feb 14, 2004
filing date -
Feb 14, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bottom wall 11 of a valve chamber 13 of an electric switching valve 10 includes a laminated structure having a bottom cover 11 to which pipe fittings 14, 15, 16 are connected; a valve seat 19 on which the valve ports 19C, 19D are opened and which an end wall of the valve body 20 slidably contacts; an intermediate plate 17 interposed between the bottom cover 11 and the valve seat 19 with communication openings 17D, 17E for connecting the pipe fittings 15, 16 to the valve ports 19C, 19D. At least one of the valve ports 19C, 19D is biased toward a rotation center of the valve body 20 against the center of the corresponding pipe fitting 15, 16.
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