Gear-type positive-displacement machine

Details Gear-type positive-displacement machine Gear-type positive-displacement machine

1976-08-09

1979-02-06

Vrablik, John J.

Rotary expansible chamber devices

Non-metallic working member, cylinder or partition

Resilient

418165, 418196, 92 67, 92120, F01C 114, F01C 502, F01C 900

Patent

active

041382064

ABSTRACT:
A gear-type machine whose housing accommodates two symmetrical idle gears which are in mesh with an internal toothing of an element embracing them inside the housing and with an external toothing of a central gear, whereas the spaces confined between the idle gears and the toothings accommodate webs to form herewith fluid tight chambers for a working fluid which thus imparts rotation of the idle gears. The internal toothing is stationary and carries the webs, while the idle gears are free to roll over the stationary toothing to impart rotation to the central gear which, in turn, may transmit the torque to a machine output member. In another, preferred embodiment, the central gear is stationary while the housing with its internal toothing is rotatable and constitutes the output.
The inventive machine enables rotation of the output member through an angle smaller or greater than 360.degree..

REFERENCES:
patent: 1042883 (1912-10-01), Brown
patent: 2095404 (1937-10-01), Wurr
patent: 3017807 (1962-01-01), Grover
patent: 3203356 (1965-08-01), Jepsen
patent: 3528345 (1970-09-01), Rumsey
patent: 3870437 (1975-03-01), Gondek

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