Patent ID: 8328531

Claim:
A scroll compressor comprising: a first scroll member having a spiral wrap; a second scroll member having a spiral wrap, said spiral wraps interfitting to define compression chambers; a pair of ports leading from said compression chambers; a pair of valves for selectively blocking flow from said ports leaving said compression chambers; the pair of valves being controllable such that flow may pass from neither of the two ports, from both of the two ports, or from only one of the two ports; and wherein said pair of valves are controlled by a fluid, a single three-position solenoid valve controls the flow of the fluid to each of said valves, said single three-position solenoid valve being axially movable to said three positions to selectively provide a compressed refrigerant to each of said valves to selectively block or allow flow from the ports, such that said single three-position solenoid valve can be in a first position such that fluid may pass from neither of the two ports, a second position where fluid may pass from both of the two ports, and a third position where fluid may pass from only one of the two ports, thereby providing three levels of capacity.