CONTINUOUSLY VARIABLE TRANSMISSION (CVT) DEVICE CONTROLLED BY A GEARED MOTOR
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United States of America Patent
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Issued Date -
Nov 27, 2014
app pub date -
Aug 31, 2012
filing date -
Sep 1, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention consists of the use of a control rotary actuator coupled to a worm gear mechanism for changing the transmission ratio by varying the speed of the crown of the epicyclic gear mechanism. The claimed CVT is characterized by a combined mechanical system with a low power motor, which serves as a positioner. The design of the present invention is based on the use of a rotary control actuator worm gear instead of traditional continuously variable transmission pulleys or the continuously variable toroidal transmission, in order to modify the transmission ratio by varying the speed of the epicyclic crown mechanism. This continuously variable transmission does not require any clutch to vary the gear ratio or transmission throughout its operating range. The present invention does not use intentional friction forces in order to transmit the input power to the output of the existing forces, distinguishing itself from what already exists which are based on high frictional forces as a means to transmit torque or speed.
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