Rotary expansible chamber devices – Interconnected vanes – Interposed movable member interconnects plural vanes
Patent
1977-03-21
1979-01-09
Vrablik, John J.
Rotary expansible chamber devices
Interconnected vanes
Interposed movable member interconnects plural vanes
418263, F01C 100, F01C 2108
Patent
active
041336186
ABSTRACT:
A rotary machine of the type which includes a rotor rotatably mounted in a stator and carrying vanes mounted for radial movement to cooperate with the inner surface of the stator to, for example, compress a gas drawn into the stator housing through an inlet port. The necessary radial movement of the vanes during rotation of the rotor is accomplished by means of cam followers associated with the vanes which ride on stationary cam surfaces. The cam surfaces are round and have their axes positioned eccentrically with respect to the axis of rotation of the rotor. Tension springs draw the vanes radially inwardly of the rotor so that the cam followers are held in contact with the cam surfaces. This provides positive vane control and prevents vane lifting while minimizing contact between the vane tips and the stator inner surface.
REFERENCES:
patent: 118993 (1871-09-01), Wentworth
patent: 870290 (1907-11-01), Henkel
patent: 1550286 (1925-08-01), Sorge
patent: 1743539 (1930-01-01), Gasal
patent: 2003615 (1935-06-01), Smith et al.
patent: 2590132 (1952-03-01), Scognamillo
patent: 2672282 (1954-03-01), Novas
patent: 3988083 (1976-10-01), Shimizu et al.
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