A variable displacement compressor includes a suction chamber, a discharge chamber,
and a crank chamber. The compressor also includes a first path for allowing communication
between the crank chamber and the discharge chamber, and a second path for allowing
communication between the crank chamber and the suction chamber. Moreover, the
compressor includes a valve assembly. The valve assembly includes a valve positioned
within the first path, and the valve assembly controls a pressure in the crank
chamber by varying a position of the valve. The compressor also includes an orifice
mechanism. The orifice mechanism includes a plate having a hole formed therethrough,
and an elongated member positioned within the hole. Specifically, the elongated
member is movable within the hole, and an annulus of the orifice mechanism is defined
between the elongated member and an interior surface of the hole. Moreover, the
annulus defines a portion of the second path, and the orifice mechanism controls
a flow of a refrigerant from the crank chamber to the suction chamber by varying
an area of the annulus. The compressor also includes a linking member operationally
coupling the valve assembly to the orifice mechanism. For example, the linking
member may operationally couple the valve assembly to the orifice mechanism, such
that when the area of the opening of the annulus is at a minimum area, the valve
may be open, and when the area of the opening of the annulus is at a maximum area,
the valve may be closed.