Method of operating a claw-type vacuum pump and a claw-type vacu

Details Method of operating a claw-type vacuum pump and a claw-type vacu Method of operating a claw-type vacuum pump and a claw-type vacu

1996-08-09

1997-08-26

Vrablik, John J.

Rotary expansible chamber devices

Methods

418 9, 418 15, 418 83, F04C 1818, F04C 2502, F04C 2904

Patent

active

056605358

ABSTRACT:
A method of operating a claw-type vacuum pump with two or more stages, each of which has a suction chamber with a pair of claw rotors and end-located suction and discharge ports. To avoid the possibility of liquids affecting operation of the pump, the invention proposes that the pump is operated without internal compression and that the gases emerging from at least one stage are cooled.

REFERENCES:
patent: 1531607 (1925-03-01), Green
patent: 4137022 (1979-01-01), Lassota
patent: 4504201 (1985-03-01), Wycliffe
patent: 4983107 (1991-01-01), Steffens et al.
patent: 5173041 (1992-12-01), Niimura et al.

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