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US 9,068,617 B2Granted
Pendulum-absorber brake
AssigneeFord Global Technologies, LLC
InventorsGregory Michael Pietron, Jeffrey Eliot Chottiner, John Edward Brevick, Matthew David Hammond, Rick L. Williams
Life of this patent
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Abstract
A crankshaft comprising a cheek, a torsion-absorbing pendulum pivotally coupled to the cheek, and a rotational speed actuated brake to oppose motion of the pendulum relative to the cheek. The brake is configured to provide greater opposition to the motion at lower rotational speeds than at higher rotational speeds.
Claims6
A crankshaft comprising:
- a cheek;
- a torsion-absorbing pendulum pivotally coupled to the cheek;
- and
- a rotational speed actuated brake including a valve configured to release, when open, a lubricant jet to oppose motion of the pendulum relative to the cheek and further configured to cut off the lubricant jet when closed, the brake configured to provide greater opposition to the motion at lower rotational speeds than at higher rotational speeds via the valve.
1 more element
Dependencies are inferred from the claim text.