Patent ID: 6939116
Filing Date: 2005-09-06
Classification: F01C,F04C

Abstract:
1. A scroll compressor comprising: a casing having a fixed scroll, an orbiting scroll and an Oldham coupling therein, said orbiting scroll forming a compression chamber together with said fixed scroll, said Oldham coupling being configured to slide in a first direction that is perpendicular to an axis of a drive shaft to said fixed scroll and being configured to slide in a second direction that is perpendicular to said axis of said drive shaft to said orbiting scroll, said first direction being determined so as to provide a phase difference between a first rotational torque acting on said orbiting scroll with cyclic fluctuation by a reaction force of a gas in said compression chamber during an orbital revolution of said orbiting scroll and a second rotational torque acting on said orbiting scroll with cyclic fluctuation by sliding movement of said Oldham coupling in said first direction, such that a range of fluctuation of a total torque of said first rotational torque and said second rotational torque becoming smaller than that of said first rotational torque.