Progressive cavity drive train

Details Progressive cavity drive train Progressive cavity drive train

1976-09-27

1978-03-21

Vrablik, John J.

Rotary expansible chamber devices

Unlike helical surfaces on relatively wobbling rotating...

175107, 74801, F01C 110, F03C 300, E21B 312, F16H 128

Patent

active

040801152

ABSTRACT:
An improved drive train for a progressive cavity device is disclosed. The progressive cavity device has a rotor, a stator, means for fluid to enter between said stator and rotor, and means for fluid to exit therefrom. The rotor is adapted to roll with respect to the stator. The improved drive train comprises means attached to the rotor, for rotation substantially about a single axis, whereby the rolling of said rotor and the rotational motion about said single axis are directly connected and are at different speeds. At least a portion of said means attached to the rotor is aligned with the true center of the rotor.

REFERENCES:
patent: 1681094 (1928-08-01), Capeliuschnicoff
patent: 2473537 (1949-06-01), McDonald
patent: 2553548 (1951-05-01), Canazzi et al.
patent: 2615436 (1952-10-01), Pawl
patent: 2874534 (1959-02-01), Canazzi
patent: 3288078 (1966-11-01), Monroe et al.
patent: 3982859 (1976-09-01), Tschirky et al.

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