Patent ID: 6939112

Claim:
A variable displacement compressor comprising: a suction chamber; a discharge chamber; a crank chamber; a first path for allowing communication between the crank chamber and the discharge chamber; a second path for allowing communication between the crank chamber and the suction chamber; a valve assembly comprising a valve, wherein the valve is positioned within the first path, and the valve assembly controls a pressure in the crank chamber by varying a position of the valve; an orifice mechanism comprising: a plate having a hole formed therethrough; and an elongated member positioned within the hole, wherein the elongated member is movable within the hole, wherein an annulus of the orifice mechanism is defined between the elongated member and an interior surface of the hole and defines a portion of the second path, and wherein the orifice mechanism controls a flow of a refrigerant from the crank chamber to the suction chamber by varying an area of an opening of the annulus; and a linking member operationally coupling the valve assembly to the orifice mechanism.