CONTROL VALVE OF VARIABLE DISPLACEMENT COMPRESSOR

摘要

PURPOSE: To provide a control valve capable of enhancing a controllability and a responsiveness of a discharge quantity of a variable displacement compressor. CONSTITUTION: A valve element part 46 adjusts an opening of an air feeding passage 28 corresponding to a position in a valve chamber 42. A pressure sensitive member 48 is displaced corresponding to a pressure difference ΔPd of two pressure monitoring points P1, P2 set on a cooling medium circulation circuit and this displacement is reflected to a positioning of the valve element part 46 such that a discharge quantity of the compressor is changed to a side denying a fluctuation of the pressure difference ΔPd. An electromagnetic actuator 51 can change a set pressure difference, or a reference of a positioning action of the valve element part 46 by the pressure sensitive member 48, by changing a force imparted to the valve element part 46.