Self actuator for cam phaser with sprag clutch

Details Self actuator for cam phaser with sprag clutch Self actuator for cam phaser with sprag clutch

1990-07-17

1991-08-20

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Automatic

123 9015, 464160, F01L 3100, F16D 310, F16D 4106

Patent

active

050406515

ABSTRACT:
A device (10) for varying the angular phase relationship between a camshaft (12) and a crankshaft (not shown) in response to a control signal including a drive member (18) rotating synchronously with an engine crankshaft, a driven member (16) synchronously rotating with the camshaft on a common axis with the drive member. A coupling assembly (42) interlinks the two members and includes an actuator element (76) positionable to selectively vary the phase relationship between the members. An energy storage mechanism (100) including an inertia member (106) and a spring (104) converts kinetic energy from transitory speed differentials between the driven and inertia members to potential energy for selective release by a latch mechanism (144) in driving connection between the energy storage mechanism and the actuator element.

REFERENCES:
patent: 3626720 (1971-12-01), Meacham et al.
patent: 4545338 (1985-10-01), Allred
patent: 4754727 (1988-07-01), Hampton
patent: 4787345 (1988-11-01), Thoma
patent: 4802376 (1989-02-01), Stidworthy
patent: 4841924 (1989-06-01), Hampton et al.
patent: 4862843 (1989-09-01), Kawamoto et al.

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