Rotary expansible chamber devices – With mechanical sealing – Seal element between working member and vane
Patent
1975-02-24
1976-11-23
Vrablik, John J.
Rotary expansible chamber devices
With mechanical sealing
Seal element between working member and vane
418219, 418230, F01C 100, F03C 300, F04C 100, F01C 1900
Patent
active
039934179
ABSTRACT:
A positive displacement rotary apparatus comprising a rotor having opposed faces on opposite sides thereof; a housing around the rotor and having opposed internal side walls facing the opposed faces of the rotor; and a plurality of circumferentially spaced vane means extending slidingly through the rotor in a direction substantially parallel to the rotational axis thereof and disposed radially outwardly from the axis of rotation of the rotor on substantially the same radius. An annular recess which periodically varies in depth and width over its length is formed in each of said internal side walls of the housing concentrically with respect to the axis of rotation of the rotor. The annular recesses slidingly receive opposite ends of the sliding vane means, and the bottoms of the recesses are equidistantly spaced from each other at all aligned points over the length of the recesses as measured along any one vane means having its opposite ends in the recesses. Means is provided on the rotor for sealing a portion of each recess between adjacent vane means to form a chamber varying in volume as the rotor is rotated and the ends of the vane means sweep around the annular recesses. Spaced ports are provided through the housing in communication with spaced locations along the recesses to provide for timed injection and exhaustion of fluids from the chambers of varying volume defined between vane means.
REFERENCES:
patent: 268195 (1882-11-01), Davis
patent: 764551 (1904-07-01), Bot
patent: 859158 (1907-07-01), Wedell
patent: 1686767 (1928-10-01), Saxon
patent: 1786893 (1930-12-01), Burger
patent: 2691349 (1954-10-01), Cuny
patent: 3464362 (1969-09-01), Ross
patent: 3489126 (1970-01-01), Regar
patent: 3902829 (1975-09-01), Burrowes
Laney William R.
Vrablik John J.
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