Pumps – Diverse pumps – Moving partition or cylinder of rotary pump forms or...
Patent
1984-07-03
1985-11-19
Gluck, Richard E.
Pumps
Diverse pumps
Moving partition or cylinder of rotary pump forms or...
417205, 417206, 417269, 417486, F04B 2310, F04B 112, F01B 1304
Patent
active
045539030
ABSTRACT:
A two-stage rotary compressor makes use of a piston-vane arrangement where both stages are built end to end and where the same members (piston-vanes) work for both stages, the "axial pistons" of the second stage becoming the dividing "vanes" in the first stage.
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patent: 3664772 (1972-05-01), Panariti
patent: 3762841 (1973-10-01), Savikurki
patent: 3905204 (1975-09-01), Edwards
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