Rotary vane machine with back pressure regulation on vanes

Details Rotary vane machine with back pressure regulation on vanes Rotary vane machine with back pressure regulation on vanes

1989-08-16

1991-07-23

Vrablik, John J.

Rotary expansible chamber devices

Grooved abutting cylinder-rotating member end surfaces

Annular groove or recess completely encircles rotation axis

418 82, 418223, 418257, 418265, 418268, 418269, F01C 1344

Patent

active

050339460

ABSTRACT:
A rotary machine includes a stationary housing having a rotor chamber and a rotor rotatably mounted in the rotor chamber, the inner peripheral surface of the rotor chamber having a central axis which is eccentrically disposed relative to the axis of rotation of the rotor. The housing has generally planar inner end walls having a cylindrical opening through which the rotor shaft extends. A plurality of vanes are slidably mounted in vane slots in the rotor and operable to define variable volume chambers as the rotor rotates and the vanes move generally radially in and out of the vane slots. Back pressure regulating grooves are disposed in the end walls of the housing, the grooves having a central axis coincident with the axis of rotation of the rotor, the grooves being juxtaposed to the vane slots and communicating with the vane slots for regulating the internal back pressure on the vanes in the vane slots.

REFERENCES:
patent: 1580713 (1926-04-01), Ensign
patent: 1669779 (1928-05-01), Reavell
patent: 3306224 (1967-02-01), Roberts

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