Two-stage rotary compressor

Details Two-stage rotary compressor Two-stage rotary compressor

2007-11-13

2007-11-13

Denion, Thomas (Department: 3748)

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

Intermixed incoming working and non-working fluids

C418S005000, C418S060000, C418S063000, C184S006180

Reexamination Certificate

active

11065205

ABSTRACT:
An oil supply hole connecting an oil reservoir to a suction port formed in a lower supporting member of a two-stage rotary compressor is disclosed. The suction port is provided in the lower supporting member attached to the lower side of a high stage side rotary compressing element, and a necessary amount of oil is supplied into return refrigerant gas sucked into the high stage side rotary compressing element through this oil supply hole. Thus an outer circumferential surface of a roller, which eccentrically rotates in a cylinder, is lubricated to protect it from wear.

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