SCROLL COMPRESSOR Russian patent published in 2013 - IPC F04C18/02 F04C29/12 

FIELD: machine building.

SUBSTANCE: scroll compressor includes fixed and rolled-over spirals being engaged with each other, drive shaft for actuation of rolled-over spiral, electric motor actuating the drive shaft, inlet pipeline and channel, the latter of which is arranged near external periphery of fixed spiral, check valve arranged in inlet channel, spring installed in inlet channel and intended to press the check valve in the direction towards inlet pipeline. Surface of spring mounting place is formed on radial internal peripheral end of inlet channel, and one of the spring ends comes into contact with it. A projection facing the check valve and entering the spring is formed on surface of mounting seat. Outer diameter of spring in end part, which comes into contact with surface of spring mounting seat, is smaller than outer diameter of spring in end part, which comes into contact with check valve.

EFFECT: improving operating reliability of scroll compressor.

4 cl, 10 dwg