Planetary gear transmission systems or components – Electric or magnetic drive or control
Reexamination Certificate
2008-02-28
2010-11-09
Wright, Dirk (Department: 3655)
Planetary gear transmission systems or components
Electric or magnetic drive or control
C310S112000
Reexamination Certificate
active
07828685
ABSTRACT:
A transmission having a plurality of tilting balls and opposing input and output discs provides an infinite number of speed combinations over its transmission ratio range. The transmission provides multiple powerpaths and can be combined with electrical components to provide motor/generator functionality, which reduces the overall size and complexity of the motor and transmission compared to when they are constructed separately. In one embodiment, rotatable components of a continuously variable transmission are coupled separately to an electrical rotor and to an electrical stator so that the rotor and stator rotate simultaneously in opposite directions relative to one another. In other embodiments, an electrical rotor is configured to transfer torque to or from a disc that is in contact with a plurality of speed adjusters, while an electrical stator is configured to transfer torque to a shaft that is operationally coupled to the speed adjusters via an idler.
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Fallbrook Technologies Inc.
Knobbe Martens Olson & Bear LLP
Wright Dirk
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