Compact dual mode continually variable transmission
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 22, 2000
Grant Date -
N/A
app pub date -
Mar 23, 1998
filing date -
Mar 23, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A continually variable transmission includes an input shaft, an output shaft and a first drive mechanism having a first input on a first axis and a first output on a second axis. The first drive mechanism produces a fixed ratio of the speed of the first input to the speed of the first output. The first input drives the first output without a member on an intervening axis. A second drive mechanism is arranged in parallel with the first drive mechanism, having a second input and second output, for producing a stepless, continually variable range of ratios of the speed of the second input to the speed of the second output. A mode clutch alternately driveably connects and releases either the members of a first group consisting of the first input and second input or the members of a second group consisting of the first output and second output. A mechanism is provided for driving the output shaft in the same direction as the input shaft and for reversing the direction of rotation of the output shaft relative to the direction of rotation of the input shaft.
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