Variable displacement compressor for vehicle air conditioning system
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United States of America Patent
Stats
-
Jun 2, 2020
Grant Date -
Dec 14, 2017
app pub date -
Dec 1, 2015
filing date -
Dec 2, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Variable displacement compressor 100 has second control valve 350 for adjusting the opening degree of pressure release passage 146. Second control valve 350 includes partition member 351, which partitions valve chamber 351c and back pressure chamber 351d, and has side wall 351a surrounding valve portion 352b of spool 352, and end wall 351b connected to one end side of side wall 351a and through which shaft portion 352b of spool 352 penetrates. Furthermore, in second control valve 350, end surface 351a1 opposite to the end wall of the side wall of partition member 351 abuts on the wall surface opposite to the back pressure chamber of the valve chamber 351c. When the valve portion 352b of spool 352 abuts on the wall surface, pressure receiving portion 352a of spool 352 abuts on end wall 351b.
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