Rotary pump with shaft/rotor connection

Details Rotary pump with shaft/rotor connection Rotary pump with shaft/rotor connection

1993-06-21

1994-12-06

Bertsch, Richard A.

Rotary expansible chamber devices

Interengaging rotating members

Like rotary members

418205, F01C 118

Patent

active

053705149

ABSTRACT:
A rotary pump having a plurality of rotor structures disposed in a pump casing, each structure having a rotor disposed in a casing, a hollow drive shaft each for driving said rotor, a headed bolt disposed within the hollow drive shaft for attaching said rotor to the drive shaft, an internally threaded rotor shaft being attached to the rotor and having said bolt threaded therein, the rotor shaft being disposed within an enlarged diameter hollow end of the hollow drive shaft, and the head of the bolt is disposed at the end of the hollow drive shaft opposite to its end to which the rotor is attached, whereby no rotor attaching means are employed on the face of the rotor opposite to the rotor shaft, and the pump casing has a flat rotor cover over the rotor structures, without any substantial spaces between the rotor cover and the rotors.

REFERENCES:
patent: 3023706 (1962-03-01), DeFezzy et al.
patent: 3126834 (1964-03-01), Bursak
patent: 3182900 (1965-05-01), Thorson

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