Rotary expansible chamber devices – With mechanical sealing – By changing working member or cylinder relative position
Patent
1975-07-14
1977-01-18
Vrablik, John J.
Rotary expansible chamber devices
With mechanical sealing
By changing working member or cylinder relative position
418110, 418173, 418187, F01C 1900, F01C 100, F04C 100
Patent
active
040036820
ABSTRACT:
A rotary piston engine is disclosed of a novel, geometric construction whereby substantially pressure dependent operation is ensured along with continuous torque characteristics. In the preferred inventive embodiment, an elongated rotatable shaft having a disc plate intermediate thereof is provided with a pair of rotor assemblies disposed to either side of the disc plate and attached for rotation as a unit, each rotor assembly including an inner and an outer concentrically arranged ring of different diameters with a radially extending piston vane disposed therebetween in linking relationship therewith. A slotted intermediate ring is placed between the inner and outer rings of each respective rotor assembly, the intermediate ring being journalled off-center of its respective rotor assembly such that the intermediate ring effects a rolling contact seal with both the inner and outer rings of the rotor assembly during rotation thereof. The arrangement is such that a plurality of crescent-shaped sealed chambers of varying volume are formed between the intermediate and outer rings, and between the intermediate and inner rings of each rotor assembly as the shaft rotates, with the radial vane of each rotor assembly dividing the respective chambers into sectors. A fluid inlet means communicates with such sectors disposed to one side of each radial vane and a fluid outlet means communicates with the chamber sectors disposed to the other side of each radial vane. The device can be operated as both a motor and as a pump.
REFERENCES:
patent: 155160 (1874-09-01), Klein
patent: 822347 (1906-06-01), Clark
patent: 1263550 (1918-04-01), Gollings
patent: 1309871 (1919-07-01), Allen
patent: 1496704 (1924-06-01), Caminez
patent: 1528075 (1925-03-01), Richer
patent: 2004920 (1935-06-01), Belden
patent: 2394185 (1946-02-01), Jaworowski et al.
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