Damper pulley
AssigneeGM Global Technology Operations LLC
InventorJeffery L Hanson
Life of this patent
Estimating the term…
Abstract
A damper pulley assembly for a vehicle engine is provided wherein the damper pulley assembly includes a hub, a pulley and a hybrid shield affixed to the hub. The hub may be affixed to the crankshaft. The hub includes a pulley contact surface. The pulley may be mounted on the hub at the pulley contact surface of the hub. The hybrid shield may be affixed to the hub. The hybrid shield may be configured to attenuate an axial flow of noise and vibration from the crank shaft when the crankshaft, the hub, and the pulley are rotating.
Claims18
A damper pulley for a vehicle engine, the damper pulley assembly comprising:
- a hub affixed to a crankshaft, the hub cover having a pulley contact surface;
- a pulley mounted on the hub at the pulley contact surface;
- and
- a hybrid shield affixed to the hub, the hybrid shield including a cover, an insulating layer provided on the cover, and a plurality of expandable fasteners projecting axially outwardly of the insulating layer into the hub, wherein the hybrid shield is configured to attenuate an axial flow of noise and vibration from the crank shaft when the crankshaft, the hub, and the pulley are rotating.
A damper pulley assembly for a vehicle engine, the damper pulley assembly comprising:
- a hub affixed to a crankshaft, the hub having a pulley contact surface;
- a pulley mounted on the hub at the pulley contact surface;
- and
- a hybrid shield affixed to the hub, the hybrid shield configured to attenuate an axial flow of noise and vibration via at least a plurality of apertures defined in the hybrid shield when the crankshaft, the hub, and the pulley are rotating.
Dependencies are inferred from the claim text.