Rotary expansible chamber devices – Working member has planetary or planetating movement
Patent
1994-05-31
1995-02-28
Bertsch, Richard A.
Rotary expansible chamber devices
Working member has planetary or planetating movement
418 60, F01C 102
Patent
active
053932080
ABSTRACT:
A rotary machine includes a housing with spaced apart end walls for defining a chamber. A two-lobe lenticular rotor assembly is disposed in the chamber for eccentric rotation therein. A hole passes through a central portion of the rotor assembly. Four slots are cut in one end of the rotor assembly in a symmetric arrangement about the center of the rotor assembly. Each slot has two edges defining an open end continuous with the hole so that each slot extends radially outward from the hole. A rotor guide assembly includes two generally cylindrical guide posts of radius R. Each guide post extends in parallel fashion toward the slots in the rotor assembly so that the guide posts can engage the slots during eccentric rotation of the rotor assembly. A shaft extends through the hole with its center longitudinal axis offset from the center of the rotor assembly by an offset distance OD. The shaft's eccentric bearing(s) reside within the rotor assembly while the shaft extends through the chamber and is rotatably mounted in each end wall. The shaft is centered between the guide posts such that the shaft's center longitudinal axis and the guide posts' center longitudinal axes are in coplanar alignment. The distance from the shaft's center longitudinal axis to each guide posts' center longitudinal axis is equal to the offset distance OD. The hole is sized so that a distance between the rotor assembly center to each edge of each open end of the slots is equal to ##EQU1##
REFERENCES:
patent: 1340625 (1920-05-01), Planche
patent: 4167375 (1979-09-01), Doshi
patent: 4300874 (1981-11-01), Georgiev
patent: 5193502 (1993-03-01), Lansing
Bertsch Richard A.
Freay Charles G.
Van Bergen Peter J.
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