Variable ratio drive system including a compact variable diamete

Details Variable ratio drive system including a compact variable diamete Variable ratio drive system including a compact variable diamete

1977-12-19

1979-12-25

Scott, Samuel

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

7423017F, F16H 5552, F16H 5556

Patent

active

041799461

ABSTRACT:
A variable diameter, speed responsive pulley of extremely compact, simple design is disclosed for use in combination with a variable diameter, tension operated pulley of substantially identical design to provide a controlled speed, variable ratio accessory drive. The speed responsive pulley is formed by a pair of pulley members mounted for relative axial movement on a rotatable central hub wherein each pulley member includes inner and outer frusto-conical surfaces cooperating with corresponding surfaces on the other pulley member to form belt engaging and centrifugal force receiving surfaces, respectively. In one embodiment the speed responsive pulley includes rigid inertial mass members for creating the centrifugal force necessary for operating the pulley. In another embodiment the centrifugal force is developed by an inertial mass having fluid properties.

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