| 摘要 |
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.
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