A Two-Path Variable-Ratio Transmission With an Extended Range of Ratios

[+] Author and Article Information
G. White

Department of Mechanical Engineering, University of Technology, Loughborough, Leics., England

J. Eng. Ind 99(3), 656-661 (Aug 01, 1977) (6 pages) doi:10.1115/1.3439293 History: Received June 21, 1976; Online July 15, 2010


The range of speed ratios available from a simple two-path, variable-ratio transmission is increased by adding a two-speed gear train and a pair of clutches. Two phases of operation minimize the torque demand on the variable ratio elements; transfer between these phases is effected by clutches engaged when unloaded and at a synchronous speed. In consequence, no speed or torque discontinuity occurs when engaging or freeing a clutch. Dimensionless analytical relations describing the transmission are developed.

Copyright © 1977 by ASME
Topics: Torque , Gears , Trains
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