Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1979-11-14
1982-02-09
Husar, C. J.
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
74196, F16H 1538, F16H 1706
Patent
active
043144853
ABSTRACT:
A speed control system includes a pair of rotatable plates having at least one power transmission roller positioned in a toroidal track formed by annular grooves in the plates. Each plate is received within a rotatable housing to which it is drivingly connected by means of a cooperating track follower and helical track so that the plate rotates with the associated housing but is free to move axially relative thereto in a screw-like motion. One housing is driven by an engine and its plate drives the other plate by means of the power transmission roller. The roller is mounted on a carrier pivotally mounted about an axis which is substantially normal to the axis of rotation of the plates and is offset from the center of the roller so that, on axial displacement of the plates, the carrier pivots so that the positions of engagement between the roller and the respective grooves change thus effecting a change in relative angular velocity of the plates. The plates are biased towards each other and into engagement with the roller by fluid under pressure in an expansible chamber associated with one of the plates and by a spring acting on the other plate. The pressure in the expansible chamber is controlled in response to the rotational speed of one of the plates.
REFERENCES:
patent: 3394617 (1968-07-01), Dickenbrook
patent: 3395587 (1968-08-01), Casini
patent: 3653272 (1972-04-01), Scheiter
patent: 3802295 (1974-04-01), Lemmens
patent: 3823613 (1974-07-01), Abbott
patent: 3826147 (1974-07-01), Sharpe et al.
patent: 3828618 (1974-08-01), Sharpe et al.
patent: 3996807 (1976-12-01), Adams
Cam Gears Limited
Cohen Moshe I.
Husar C. J.
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