Patent ID: 6344012
Filing Date: 2002-02-05
Classification: F16H

Abstract:
A rotary power transmission device having an output shaft located between two coaxial counter-rotating plates, said shaft axis intersecting with and normal to said plate axis, and fitted with a traction wheel, said wheel being in simultaneous and enforced contact with both of said plates at diametrically opposite points on periphery of wheel, said wheel being engaged with plates by friction and constrained to rotate in ratio to rotation of plates, magnitude of said ratio being determined by location of contact points of wheel upon plates, said plates rigidly mounted upon bevel gears, said gears being of equal size, and constrained to rotate at equal speed and opposite direction by being in common mesh with an intermediate bevel gear, said intermediate gear driving a positive-displacement fluid pump, said pump supplying fluid energy to a hydraulic circuit consisting of a cylinder fitted with a powered piston, a fluid reservoir fitted with a free-floating piston, and a flow control valve, actuating input of said valve being any continuous environmental variable.