Infinitely variable speed transmission
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 26, 2002
Grant Date -
N/A
app pub date -
Nov 15, 1999
filing date -
Nov 18, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An infinitely variable transmission including a torque sensor, wherein torque is transmitted from a rotary input shaft to a rotary output shaft. The transmission includes adjustable sheaves for axial movement on the input and output shafts of the transmission and that are controlled by hydraulic piston and cylinder units. The torque sensor shifts the adjustable sheaves, which are urged towards each other by a force dependent upon the transmitted torque, into frictional engagement with an endless flexible element that drives the output shaft of the transmission. Retaining elements retain the hydraulic piston and cylinder units and adjustable sheaves on the input and output shafts of the transmission in a predetermined axial position when pressure is applied in a first direction during operation of the transmission, and permit the components to be shifted axially in the opposite direction to simplify assembly/disassembly procedures of the transmission and to reduce manufacturing costs.
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