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US 5,040,651 AGranted
Self actuator for cam phaser with sprag clutch
AssigneeEaton Corporation
InventorsKeith Hampton, Roger P. Worthen
Life of this patent
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AssigneeEaton Corporation
InventorsKeith Hampton, Roger P. Worthen
Estimating the term…
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.
A device for varying the relative angular position of two rotating shafts including concentric drive and driven members adapted for respective synchronous rotation with said shafts and coupling means interlinking said drive and driven members for rotation therewith including an actuator element displaceable between a first position in which said coupling means effects a first phase relationship between said shafts and a second position in which said coupling means effects a second phase relationship between said members:
An angular phase change device comprising:
Dependencies are inferred from the claim text.