Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers
Patent
1976-01-30
1977-07-12
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Plural working members or chambers
418102, 64 9R, 184 6, F03C 300, F04C 1500, F16D 318, F01M 100
Patent
active
040351130
ABSTRACT:
A rotary fluid pressure device of the type including agerotor gear set having an externally-toothed rotor orbiting and rotating within an internally-toothed stator. An intermediate shaft has one end in splined engagement with the rotor and the other end defining a large set of internal splines. The device includes an output shaft assembly, also defining a large set of internal splines. A large dogbone shaft having external splines at each end transmits torque between the intermediate shaft and the output shaft assembly. The intermediate shaft has an axial bore which communicates pressurized lubricant to the one end of the dogbone shaft, a portion of the pressurized lubricant flowing radially outward over the end of the dogbone and through the spline connection between the dogbone and the intermediate shaft. Another portion of the pressurized lubricant flows through an axial lubricant passage in the dogbone to the opposite end of the dogbone, from where it flows radially over that end of the dogbone and through the spline connection between the dogbone and the output shaft assembly. These portions of lubricant then recombine and enter a return lubricant path.
REFERENCES:
patent: 3452543 (1969-07-01), Goff et al.
patent: 3782866 (1974-01-01), McDermott
patent: 3863449 (1975-02-01), White, Jr.
Eaton Corporation
Vrablik John J.
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