Rotary epitrochoidal compressor

Details Rotary epitrochoidal compressor Rotary epitrochoidal compressor

1989-11-17

1991-09-10

Smith, Jr., Leonard E.

Rotary expansible chamber devices

With delayed load

418101, 418166, F04C 1810, F04C 2908

Patent

active

050469320

ABSTRACT:
In an epitrochoidal rotary air compressor, a stationary portion includes a stationary single offset power shaft on which is mounted an epitrochoidal rotor in a rotary housing portion. The rotor includes a pinion gear which cooperates with a ring gear in the rotary housing portion to move the rotor within the rotor chamber in the rotary housing portion. A centrifugally driven lubrication system including lubrication channels extending internally of the stationary power shaft is provided for lubricated bearings and gears within the apparatus. An improved compression seal engaging the lateral faces of the rotor has a plurality of buttons biasing a split ring against the lateral faces of the rotor. An air pressure unloader valve is centrifugally operated to release the load from the compressor during startup. A rotary after-cooler in the rotary housing portion removes thermal energy from the compressed air prior to leaving the compressor and an inter-cooler may be provided in a two stage compressor.

REFERENCES:
patent: 2053919 (1936-09-01), Pigott
patent: 2302907 (1942-11-01), Eilers
patent: 3367275 (1968-02-01), Workman
patent: 4233003 (1980-11-01), Jeng
patent: 4714417 (1987-12-01), Wankel
patent: 4781542 (1988-11-01), Ozu et al.

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