Down hole motor

Details Down hole motor Down hole motor

1981-04-27

1983-11-15

Vrablik, John J.

Rotary expansible chamber devices

Unlike helical surfaces on relatively wobbling rotating...

418182, 175107, 403227, 403368, F01C 1107, F01C 502, F03C 208

Patent

active

044153163

ABSTRACT:
In a Moineau type fluid motor one of the relatively rotatable elements is made of a deformable material, and axial movement of tapered surfaces within the element, caused by variation in the fluid pressure, causes adjustment of the sealing force in the motor in accordance with the fluid pressure level.

REFERENCES:
patent: 2212153 (1940-08-01), Eaton et al.
patent: 3139035 (1964-06-01), O'Connor
patent: 4187061 (1980-02-01), Jurgens
patent: 4315699 (1982-02-01), Lusk

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