VARIABLE CAPACITY COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To prevent differential pressure between a crank chamber and a cylinder bore from being excessively increased. SOLUTION: A suction passage 90 connects a suction chamber 37 of a compressor to an external refrigerant circuit 71. A suction chamber pressure control valve 91 is arranged on the suction passage 90. The suction chamber pressure control valve 91 closes the suction passage 90 when a friction clutch 23 is turned off, when acceleration is cut or when a vehicular engine Eg is stopped.