Continuously variable transmission with control arrangement and method for reducing impact of shock load
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United States of America Patent
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-
Sep 18, 2001
Grant Date -
N/A
app pub date -
Jun 25, 1999
filing date -
Jun 25, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A continuously variable transmission and method for preventing transmission belt slippage in the case of a sudden change in load torque on the transmission involve one or both of inserting a lag in the transmission with a torsional spring damper or elastomer damper device between the device to be driven and an output shaft of the secondary pulley of the transmission, and inserting a lag in a hydraulic pressure control loop of the transmission compensating for a difference between the rate of torque transmission between the device to be driven and the transmission, and a response rate of the hydraulic pressure control loop to a sudden change in load torque. The transmission is used to drive an aircraft electrical generator at a constant speed in the disclosed embodiment.
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