Endless belt power transmission systems or components – Pulley with belt-receiving groove formed by drive faces on... – Load responsive
Patent
1985-05-23
1986-06-03
Dorner, Kenneth J.
Endless belt power transmission systems or components
Pulley with belt-receiving groove formed by drive faces on...
Load responsive
474 17, 474 50, F16H 918, F16H 1106
Patent
active
045927375
ABSTRACT:
A torque sensing variable diameter power transfer assembly is disclosed wherein the cam members are provided with an asymmetrical cam surface pattern having first and second cam surfaces meeting the base of the cam at different angles. The opposing first cam surfaces meet the corresponding base members at approximately 45.degree. and interengage to effectively transmit torque between the opposing cam members during normal operating conditions. The opposing second cam surfaces meet the corresponding case member at approximately 30.degree. and interengage to effectively transmit torque between the respective cam members during reverse power conditions, wherein the normally driven sheave temporarily becomes the drive sheave. The asymmetrical cam surfaces generally eliminate belt slippage during reverse power conditions and permit the engine to brake the power delivered by the normally driven sheave.
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ASAE Paper, "Design and Development of a High Horsepower Torque Sensing Variable Speed Drive", Keller and Wilson, 9/11-14/1972.
ASAE Paper, "Design Equations for a Speed and Torque Controlled Variable Ratio V-Belt Transmission", Hornung, Swenson, Shapiro and Oliver, pp. 1-9.
Diehl Dwight G.
Dorner Kenneth J.
Marquette Darrell F.
Miller Larry W.
Seemar Frank A.
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