Gas friction pump

Details Gas friction pump Gas friction pump

1997-08-05

1999-04-13

Verdier, Christopher

Rotary kinetic fluid motors or pumps

Runner has spirally arranged blade or fluid passage

415 73, 415 83, 415 90, F04D 1904

Patent

active

058937021

ABSTRACT:
A gas friction pump including a rotor located in the pump housing and formed of a plurality of coaxial first cylindrical elements, and a stator located in the housing and formed of a plurality of second cylindrical elements coaxial with the first cylindrical elements and surrounding respective first cylindrical elements, with the first cylindrical elements or the second cylindrical elements having smooth inner and outer surfaces, and another ones of the first cylindrical elements and the second cylindrical elements have a plurality of parallel discharge channels formed on their inner and outer surfaces, arranged one beneath another and separated by a respective plurality of webs, the parallel discharge channels defining a plurality of parallel discharge chambers forming a plurality of parallel operating pumping chambers for pumping gas form the suction port to the discharge port.

REFERENCES:
patent: 2730297 (1956-01-01), Van Dorsten et al.
patent: 4655678 (1987-04-01), Miki
patent: 4787829 (1988-11-01), Miyazaki et al.
patent: 5116196 (1992-05-01), Baret et al.
patent: 5733104 (1998-03-01), Conrad et al.

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