Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1989-01-30
1990-03-27
Herrmann, Allan D.
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
741905, 74208, F16H 1538
Patent
active
049110306
ABSTRACT:
In an infinitely variable transmission wherein two toric traction discs are rotatably supported in a housing opposite one another so as to define therebetween a toric cavity in which at least two motion transmitting traction rollers are disposed in engagement with the toric discs and supported by pivot trunnions, each pivot trunnion is provided with a single support roller disposed on a track section and has an axial control end which is supported so as to be slightly movable in a plane normal to the axis of the toric discs and hydraulic control means are provided for controllably moving the trunnion control ends for initiation of a transmission ratio change and a feedback structure is further associated with the trunnion ends and with the hydraulic control means for terminating ratio changing tilting of the trunnions when the necessary transmission ratio change has been executed.
REFERENCES:
patent: 4355547 (1982-10-01), Poole et al.
patent: 4434675 (1984-03-01), Kraus
patent: 4526051 (1985-07-01), Kraus
patent: 4718294 (1988-01-01), Okoshi
patent: 4744032 (1988-05-01), Miyaura et al.
patent: 4846008 (1989-07-01), Kraus
Excelermatic Inc.
Herrmann Allan D.
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