Rotary pump with an improved air extraction system for sacking g

Details Rotary pump with an improved air extraction system for sacking g Rotary pump with an improved air extraction system for sacking g

1986-11-21

1988-08-02

Garrett, Robert E.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418180, 418231, 415140, F04C 2344, F04C 1500

Patent

active

047611219

ABSTRACT:
The pump includes a stator and a rotor which describe an upper annular chamber having a filling mouth and a delivery mouth and a lower annular chamber in which is housed an annular cam to drive the pump blades housed in a vertically sliding manner in respective radial passages of the rotor. Into the lower chamber essentially in a position diametrically opposed to the filling mouth there opens an exhaust mouth which communicates with the upper chamber through an ample passage and with the zone of the lower chamber underlying the filling mouth through a narrow passage.

REFERENCES:
patent: 2454048 (1948-11-01), Flanagan
patent: 3315610 (1967-04-01), Salminen
patent: 3526470 (1970-09-01), Swanson
patent: 4215977 (1980-08-01), Weatherston

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