Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1983-06-23
1986-02-18
Capossela, Ronald C.
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
74690, F16H 1538, F16H 1706
Patent
active
045705011
ABSTRACT:
Mechanism to generate the end load for a toroidal race rolling friction transmission. A chamber connected to a source of high-pressure fluid is formed by two parts, one of which is connected to the input disc of the transmission and the other to the contra-rotating output disc. The gap between the two parts is sealed by a member, for instance a sleeve or ring, fixed to some part of the transmission or associated structure that is stationary or that rotates only slowly, so that the speed of rotation of the sealing member is intermediate to those of the two discs. The specification describes how the pressure within the chamber may be related to the torque transmitted between the discs, how means other than chamber pressure may be used to generate a pre-load force to hold the discs in engagement when the unit is at rest, and how the rise in pressure within the chamber upon the unit coming into operation may relieve the thrust race that withstands the reaction of one disc against the other due to the pre-load when at rest.
REFERENCES:
patent: 2079683 (1937-05-01), Chilton
patent: 3413864 (1968-12-01), Magill et al.
patent: 3570317 (1971-03-01), Kraus
patent: 4272999 (1981-06-01), Perry
patent: 4297918 (1981-11-01), Perry
patent: 4314485 (1982-02-01), Adams
patent: 4499782 (1985-02-01), Perry
Capossela Ronald C.
National Research Development Corporation
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