DISPLACEMENT CONTROL VALVE OF VARIABLE DISPLACEMENT COMPRESSOR

摘要

PURPOSE: A displacement control valve of a variable displacement compressor is provided to prevent the compression loss of the compressor by linking and controlling a connection path between the discharge chamber and the crank case and a connection path between the crank chamber and the intake chamber. CONSTITUTION: A displacement control valve of a variable displacement compressor comprises a valve housing(110), a valve body(120), and a solenoid(130). The valve housing comprises a crank-case connection hole(112), a discharge-chamber connection hole(113), a first intake-chamber connection hole(111), a first guide hole(117), and a second guide hole(137). The crank-case connection hole is applied with the crank-case pressure of a compressor. The discharge-chamber connection hole is applied with the discharge-chamber pressure of the compressor. The first intake-chamber connection hole is applied with the intake-chamber pressure of the compressor. The first guide hole crosses the discharge-chamber connection hole and the crank-case connection hole. An end of the second guide hole is applied with the intake-chamber pressure. The valve body comprises a first valve(120a) and a second valve(120b) which respectively open/close the first guide hole and the second guide hole by reciprocating. The solenoid reciprocates the valve body.