Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1989-02-24
1990-01-16
Herrmann, Allan D.
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
F16H 1512
Patent
active
048935174
ABSTRACT:
Disclosed herein is a continuously variable traction roller transmission of a double cavity type, which comprises a casing; a partition wall installed in the casing to define front and rear cavities in the same; a first shaft extending through the front and rear cavities; first and second motion transmitting traction mechanisms respectively installed in the front and rear cavities and disposed about the first shaft, each mechanism being operatively connected to the first shaft and including opposite paired input and output toroidal discs and paired traction rollers disposed between and in engagement with the paired input and output toroidal discs; a second shaft extending through only the rear cavity; a first device for operatively connecting the second shaft to both of the first and second motion transmitting traction mechanisms; a second device for biasing one of the paired input and output discs of each motion transmitting traction mechanism toward the other in accordance with a magnitude of torque applied to the one disc; a third device for constantly biasing one of the paired input and output discs of each motion transmitting traction mechanism toward the other; and a fourth device for rotatably mounting adjacent two of the discs of the respective first and second motion transmitting traction mechanisms to the partition wall.
REFERENCES:
patent: 3430504 (1969-03-01), Dickenbrock
patent: 4693134 (1987-09-01), Kraus
Kraus et al., "A Continuously Variable Transmission for Automotive Fuel Economy", Society of Automotive Engineers, Inc., Paper 751180, (1974).
Herrmann Allan D.
Nissan Motor Co,. Ltd.
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