Cylinder assembly for a reciprocating compressor

Details Cylinder assembly for a reciprocating compressor Cylinder assembly for a reciprocating compressor

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 53/16 (2006.01) F04B 39/00 (2006.01) F04B 49/12 (2006.01) F25B 31/00 (2006.01)

Patent

CA 2181850

A cylinder assembly for a reciprocating compressor has a piston comprising a first piston member connected to a connecting rod; a second piston member provided with a piston head and connected to the first piston member in such a way as to move relatively to the first piston member for a predetermined length in the axial direction; and a elastically deformable member in the form of a spring washer interposed between the distal end face of the first piston member and a corresponding face of the second piston member to urge the first piston member and the second piston member apart from each other. Accordingly, the amount of the residual refrigerant is minimized to decrease re-expansion of the residual refrigerant and increase the amount of the sucked refrigerant, and consequently to improve the compressor efficiency. At the same time, the risk of damage to the suction valve plate and reed by the high-pressure refrigerant and oil-refrigerant mixture can be reduced.

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