Low inertia ball ramp actuator

Details Low inertia ball ramp actuator Low inertia ball ramp actuator

1996-08-20

1998-02-03

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Automatic

192 5452, 192 847, 192 93A, F16D 1304, F16D 27112, F16D 4320

Patent

active

057134464

ABSTRACT:
A ball ramp actuator having first and second actuation plates with a control plate disposed therebetween where a plurality of circumferential variable depth grooves are formed in a first face of the first actuation plate and in first and second faces of the control plate where the grooves formed in the first face of the control plate are directly opposed to the grooves formed in the second face of the control plate where the actuation grooves and the control grooves form opposed pairs of grooves having a rolling member disposed within each pair of grooves for axially separating the first and second actuation plates from the control plate as the rolling members traverse their respective grooves such that the rolling members contacting the first face of the control plate directly oppose the rolling elements contacting the second face of the control plate to provide a balanced axial force on the control plate.

REFERENCES:
patent: 2045086 (1936-06-01), Kastner
patent: 2738045 (1956-03-01), Mergen et al.
patent: 2933171 (1960-04-01), Kraeplin
patent: 3000479 (1961-09-01), Mosbacher
patent: 4645049 (1987-02-01), Matsuda et al.
patent: 4805486 (1989-02-01), Hagiwara et al.
patent: 5078249 (1992-01-01), Botterill
patent: 5092825 (1992-03-01), Goscenski et al.
patent: 5485904 (1996-01-01), Organek et al.
patent: 5638933 (1997-06-01), Matsumoto et al.

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