Continuously variable ratio transmission
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Abstract
A continuously variable ratio transmission including a planetary gear set having a sun gear, a ring gear, and a planet carrier having at least two planet gears carried thereon, a control element including a servogenerator capable of generating electric power, and at least one auxiliary field coil adapted to be operatively connected to an output means to influence a power output level and AC power frequency of the output means, the at least one auxiliary field coil being powered by the servogenerator and constituting a load to the servogenerator, the speed of the servogenerator being capable of being controlled by the load; and a means for controlling an electrical current to the at least one auxiliary field coil from the servogenerator; where the servogenerator is capable of being driven to produce electrical power by a rotation of one of the sun gear, the ring gear, and the planet carrier.
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Citations
6 Claims
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1-3. -3. (canceled)
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4. A continuously variable ratio transmission (CVT) system comprising:
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a primary CVT serially coupled to a secondary CVT; and
the primary CVT including an input means, an output means, a control means, and a primary planetary gear set operatively coupled to a prime motor of the input means, the output means coupled to a driven application device, the control means coupled to a secondary output means of the secondary CVT, the primary planetary gear set having a ring gear, a sun gear and a planet carrier, and each of the ring gear, the sun gear, and the planet carrier to selectively function as one of the input means, the output means, and the control means. - View Dependent Claims (5, 6)
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Specification