Scroll compressor with a refrigerant injection system

Details Scroll compressor with a refrigerant injection system Scroll compressor with a refrigerant injection system

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 29/12 (2006.01) F04C 2/02 (2006.01) F04C 18/02 (2006.01) F25B 31/02 (2006.01)

Patent

CA 2618414

A scroll compressor including a refrigerant injection system. The refrigerant injection system includes an injection inlet conduit which is disposed at least partially within the suction pressure chamber of the scroll compressor, and includes one end sealingly fitted into an opening in the non-orbiting scroll member which is disposed within the suction pressure chamber. The non-orbiting scroll member includes a pair of transfer passages at least partially formed in a side thereof which faces the discharge pressure chamber, as well as injection ports for injecting refrigerant from the transfer passages into the working pockets defined between the non-orbiting and orbiting scroll members. A cover plate, disposed in the discharge chamber of the compressor, is secured to the base plate of the non-orbiting scroll via a gasket and a plurality of fasteners to enclose and seal the transfer passages from the discharge pressure chamber. A discharge valve assembly is secured to the cover plate and is operable to selectively open and close the discharge port of the non-orbiting scroll member.

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