Rotary expansible chamber devices – Multistage – Interengaging rotary members
Patent
1981-12-02
1984-03-20
Smith, Leonard E.
Rotary expansible chamber devices
Multistage
Interengaging rotary members
418206, F01C 108, F04C 1800
Patent
active
044378181
ABSTRACT:
An oil-free rotary compressor having mating impellers rotatably mounted in working chambers; each impeller has at least two profiles; each profile having only one lobe and one well of substantially 180 degrees in arcuate extent. An inlet port communicating directly with all of the profiles and an outlet port in a side plate at the axial extremity of the working chambers. The angular displacement between adjacent profiles is at least 130 degrees and the pitch velocities of each impeller is at least 200 feet per second.
REFERENCES:
patent: 1029157 (1912-06-01), Ullman
patent: 4033708 (1977-07-01), Weatherston
patent: 4076469 (1978-02-01), Weatherston
Jaffe Allen J.
Obee Jane E.
Smith Leonard E.
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