Patent ID: 7419370

Claim:
A scroll compressor comprising: a compressor mechanism including a first scroll having an end plate and a spiral wrap formed thereon and a second scroll having an end plate and a spiral wrap formed thereon and engaging with the first scroll; a support for supporting the second scroll; a seal arranged between the support and the second scroll; and a position adjustment device for changing a position of the second scroll along an axial direction of the compressor mechanism, the seal hermetically contacting the end plate of the second scroll such that a back pressure space for bringing the first scroll and the second scroll into contact with each other is defined inside the seal with the first and second scrolls being engaged, and the position adjustment device being configured to change a position of the seal between a sealing position at which the seal hermetically contacts the end plate of the second scroll and a leakage position at which the seal is separated from the end plate of the second scroll to place the second scroll in a non-compression position.