DISPLACEMENT CONTROL VALVE OF VARIABLE DISPLACEMENT COMPRESSOR

摘要

PURPOSE: A variable displacement valve of a variable displacement compressor are provided to apply an electric current by actuating pressure of a suction chamber in a traveling direction of a valve head when a solenoid runs. CONSTITUTION: A variable displacement valve(100) of a variable displacement compressor comprises a valve body, a valve head(120) and a solenoid. The valve body comprises a suction chamber connection hole(111), a crank chamber connection hole(112) and an ejection chamber connection hole(113). The suction chamber connection hole, the crank chamber connection hole and the ejection chamber connection hole are pressed by a suction chamber(22), a crank chamber(86) and an ejection chamber(24). The ejection chamber connection hole and crank chamber connection hole are communicated one another. The valve head opens and closes the ejection chamber connection hole via the crank chamber connection hole, while having a reciprocating motion through applying an electric current. The solenoid has a movable part connected to the head valve and a magnetic coil(132) arranged in a circumference of the movable part.