Rotary fluid machine with expandable rotary obturator

Details Rotary fluid machine with expandable rotary obturator Rotary fluid machine with expandable rotary obturator

1983-04-05

1984-09-11

Vrablik, John J.

Rotary expansible chamber devices

With mechanical sealing

By axially relatively moving vane or abutment sections

418196, F01C 112, F01C 1908, F16J 1516

Patent

active

044707797

ABSTRACT:
This invention relates to a rotary fluid machine that is actuated by any fluid under pressure in which a rotor carrying a piston member (16) rotates continuously when the machine is in operation about the axis of an annular chamber (14), the piston member is mechanically connected to a rotary obturator (18.sub.1, 18.sub.2) that rotates in a sealing chamber (15.sub.1, 15.sub.2) about an axis substantially parallel to said axis of the annular chamber (14) and the rotary obturator (18.sub.1, 18.sub.2) has a recess (20.sub.1, 20.sub.2) in which a part of the piston enters during rotation, to provide a working section in the annular chamber (14) as working fluid is fed to the piston, the machine is characterized by a rotary obturator (18.sub.1, 18.sub.2) having a body in the form of a solid of revolution that is in at least two parts (FIG. 4) that are able to move along the axis (XX1) of revolution continuously to allow at least a part of the exterior surface of the obturator to be kept in sealing contact with the interior surface of its sealing chamber and/or the annular chamber.

REFERENCES:
patent: 722480 (1903-03-01), Bergmann
patent: 1020842 (1912-03-01), Ogden
patent: 1466904 (1923-09-01), Jackson
patent: 1769822 (1930-07-01), Blackman
patent: 2958312 (1960-11-01), Shimomura
patent: 3960116 (1976-06-01), Ingham

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