Patent ID: 6749404
Filing Date: 2004-06-15
Classification: F04C

Abstract:
A scroll compressor, comprising:a fixed scroll, a movable scroll disposed opposite to the fixed scroll, the movable scroll including a front portion and a rear portion, the front portion substantially slidably contacting the fixed scroll and the rear portion substantially slidably contacting a portion of a compressor housing, at least one compression chamber defined between the fixed scroll and the movable scroll, a motor driving the movable scroll, whereby the movable scroll revolves relative to the fixed scroll, so that a refrigerant is drawn from a suction-side region into the compression chamber is compressed within the compression chamber and the compressed refrigerant is discharged to a discharge-side region as the movable scroll revolves, a motor chamber defined within the compressor housing and accommodating the motor; a first conduct route communicating discharged refrigerant from the discharge-side region to the motor chamber, and a second conduct route connecting the motor chamber to a suction-side region of the fixed and movable scrolls, wherein the pressure within the suction-side region and/or the compression chamber applies a first force against the front portion of the movable scroll and the pressure within the motor chamber applies a second force against the rear portion of the movable scroll and the second conduct route is arranged and constructed to substantially balance the opposing first and second forces, and wherein the second conduct route comprises a throttle channel that is defined between the suction-side region and the motor chamber.