Patent ID: 9309888
Filing Date: 2016-04-12
CPC Classification: F04C

Claim Text:
1. A scroll refrigeration compressor comprising: a stationary volute and a moving volute describing an orbital movement, each volute including a plate from which extends a scroll, the scrolls of the stationary and moving volutes being engaged into each other and delimiting variable-volume compression chambers, a delivery line, made in the central portion of the plate of the stationary volute, comprising a first end opening into a central compression chamber and a second end intended to be put into communication with a delivery chamber made in the compressor, a valve arrangement mounted on the plate of the stationary volute, at the second end of the delivery line, and at least one bypass channel comprising a first end opening into an intermediate compression chamber or into a low pressure portion of the compressor, and a second end opening into the surface of the plate of the stationary volute turned towards the side of the valve plate, facing the bypass valve, wherein the valve arrangement comprises: