Continuously variable transmission

Details Continuously variable transmission Continuously variable transmission

2005-10-03

2010-06-01

Joyce, William C (Department: 3656)

Friction gear transmission systems or components

Condition responsive ratio change

C476S005000, C476S040000

Reexamination Certificate

active

07727106

ABSTRACT:
A variable ratio transmission for mechanically coupling an input member to an output member, the variable ratio transmission allowing the conversion of an input rotational motion of the input member into an output rotational motion of the output member, the input rotational motion having an input speed and an input torque and the output rotational motion having an output speed and an output torque. The variable ratio transmission includes a variable ratio transmission assembly mechanically coupled to the input member and to the output member for rotating the output member at the output speed in response to the input member being rotated at the input speed, the variable ratio transmission assembly defining a transmission ratio between the output speed and the input speed, the transmission ratio being variable; and a ratio controller mechanically coupled to the variable ratio transmission assembly and to the input member for automatically adjusting the transmission ratio as a function of the input torque.

REFERENCES:
patent: 4386536 (1983-06-01), Kraus
patent: 4735430 (1988-04-01), Tomkinson
patent: 5236403 (1993-08-01), Schievelbusch
patent: 5273501 (1993-12-01), Schievelbusch
patent: 5597056 (1997-01-01), Blake
patent: 6071209 (2000-06-01), Greenwood
patent: 1359344 (2003-04-01), None

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