Rotary expansible chamber devices – With supply or exhaust passage in working member – Supply or exhaust passage through working member center of...
Patent
1979-02-06
1980-09-09
Vrablik, John J.
Rotary expansible chamber devices
With supply or exhaust passage in working member
Supply or exhaust passage through working member center of...
418195, 418200, F01C 108, F01C 1100, F03C 300, F04C 1704
Patent
active
RE0304000
ABSTRACT:
A device is provided, such as a compressor, expansion machine, pump, hydraulic motor and the like, to vary the pressure of a fluid. Such device comprises a rotor having a toroidal surface and provided with a plurality of threads, a casing having symmetry of revolution about the axis of said rotor and adapted to cooperate with the crests of the threads of said rotor, and at least a pinion whose teeth come into mesh with said threads. According to the invention, the device is mainly characterized in that the teeth of said pinion are cut in a surface having symmetry of revolution about the rotation axis of said pinion and are inclined to said axis at an angle smaller than 90 degrees, in that milled slots are formed in said casing to enable said teeth to pass through the latter and to engage with said rotor and in that ports for admission and discharge of said fluid are provided on each side of said rotor, the ports for passage of the fluid on the high pressure side being located in the immediate vicinity of said pinion.
REFERENCES:
patent: 265381 (1882-10-01), Buck
patent: 1367801 (1921-02-01), Clark
patent: 1654048 (1927-12-01), Myers
patent: 1735477 (1929-11-01), Stuart
patent: 2158933 (1939-05-01), Good
patent: 2232702 (1941-02-01), Holzknecht
patent: 2327089 (1943-08-01), Bejeuhr
patent: 3054356 (1962-09-01), Thompson
patent: 3133695 (1964-05-01), Zimmern
patent: 3180565 (1965-04-01), Zimmern
Vrablik John J.
Ziems Robert F.
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