Two-stage rotary compressor

Details Two-stage rotary compressor Two-stage rotary compressor

2011-01-11

2011-01-11

Denion, Thomas E (Department: 3748)

Rotary expansible chamber devices

Multistage

Sliding abutment

C418S013000, C418S015000, C418S148000, C418S267000, C418S268000

Reexamination Certificate

active

07866962

ABSTRACT:
A two-stage rotary compressor having a compression mechanism including a single muffler housing member. The single muffler housing member at least partially defines an intermediate pressure discharge cavity and a discharge pressure discharge cavity. In one exemplary embodiment, the compression mechanism includes a cylinder block having a plurality of vanes positioned within slots formed in an inner cylindrical surface of the cylinder block. The slots are in fluid communication with the discharge pressure discharge cavity and receive discharge pressure working fluid to bias the vanes radially inwardly. In another exemplary embodiment, the cylinder block includes a plurality of passages for the delivery of working fluid to and from the cylinder block.

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