Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Tension adjuster or shifter driven by electrical or fluid motor
Patent
1991-06-06
1993-01-05
Lindsey, Rodney M.
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Tension adjuster or shifter driven by electrical or fluid motor
474136, F16H 708
Patent
active
051765810
ABSTRACT:
A variable speed drive system for prime mover driven accessories which includes a self-energized controllable belt tensioner in combination with a variable diameter pulley assembly. The tensioner, upon command, uses a pump continuously driven by a fixed diameter pulley positioned by a rotary or linear actuator to take up and tension the belt passing over the same pulley. In the variable speed drive, this tensioner functions typically together with a variable diameter pulley which operates on the belt by forces which are directed toward increasing the variable pulley diameter. A hydraulic flow system with appropriate pump, valves, lines, and actuator can all be self-contained in the rotary tensioner. Selenoid valves are used in an on-off fashion with an actuator to move a pulley arm attached to the actuator generating the required belt tension to decrease the variable pulley diameter as desired upon command.
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Cates Charles E.
Harrer Richard G.
Kumm Industries, Inc.
Lindsey Rodney M.
LandOfFree
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