Patent ID: 8529219

Claim:
A variable displacement compressor comprising an opening-degree adjustment valve, which is provided in a flow passage between a suction port and a suction hole communicating with a cylinder bore, to variably control an opening area of said flow passage, wherein said opening-degree adjustment valve comprises a casing placed in said flow passage and a valve body which is provided movably relative to said casing and which is urged by a spring in said direction of decreasing said opening area; and wherein a space of which volume is varied by said casing and said valve body in accordance with an increase/decrease of said opening area of said flow passage is formed, and a communication path capable of communicating between said space and said flow passage positioned outside said space and a valve mechanism which closes said communication path when said opening area is increased and which opens said communication path when said opening area is decreased are provided, said communication path is disposed at a bottom of said casing.