SCROLL COMPRESSOR WITH DISCHARGE VALVE OPENED BY CENTRIFUGAL FORCE

摘要

PCT No. PCT/JP91/00520 Sec. 371 Date Dec. 3, 1991 Sec. 102(e) Date Dec. 3, 1991 PCT Filed Apr. 19, 1991 PCT Pub. No. WO91/17360 PCT Pub. Date Nov. 14, 1991.A scroll compressor having a first scroll member and a second scroll member includes a discharge valve device for closing an opening of a discharge port in which the discharge opening is disposed in at least one of the first and second scroll members. The discharge valve device is configured so that it is effected by a centrifugal force during operation of the scroll compressor. The centrifugal force normally maintains the discharge valve device in an open position with respect to the discharge opening. Thus, the discharge valve device is not actuated by a pressure difference between the discharge opening and the high pressure chamber and the scroll members are not rotated in reverse when operation of the scroll compressor is stopped.