| 摘要 |
A variable displacement, scroll-type compressor comprising a housing having flui d inlet and outlet ports. A fixed scroll member, placed within the housing, compri ses a first plate from which a first spiral element extends. An orbiting scroll member comprises a second plate from which a second spiral element extends. A pair of h oles are formed through said first plate. A pair of bypass passages place intermediat ely located sealed-off fluid pockets in communication with a suction chamber. A pair of cylinders are formed within respective bypass passages. A valve member having a first and a second axial end is slidably disposed within each of the cylinders so as t o close and open the corresponding bypass passage. A spring is disposed within the cylin der so as to urge the valve member to open the bypass passage. The valve member receive s pressure at its first axial end from the intermediately located sealed-off fluid pocket. A three-way electromagnetic valve selectively controls communication between the second axial end of the valve member and either the suction chamber or the disch arge chamber.
|
