Patent ID: 7052255
Filing Date: 2006-05-30
Classification: F04C

Abstract:
1. A scroll compressor comprising: a fixed scroll having a fixed scroll wrap and an orbiting scroll having an orbiting scroll wrap, said fixed scroll and said orbiting scroll having a compression space formed therebetween; a seal member installed on the fixed scroll to be movable between a first sealing position and a second sealing position so as to variably seal the compression space depending on an operating position of the seal member between the first and the second sealing positions; at least one tip seal recess being provided on an end of the fixed scroll wrap; a back pressure passage being formed within said fixed scroll wrap, said back pressure passage being in fluid communication with said at least one tip seal recess and an outer circumferential surface of said fixed scroll; and a valve operatively installed in fluid communication with said back pressure passage, said valve being provided to vary the operating position of said seal member between the first and the second sealing positions to control a capacity of said compressor.