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US 2008/0044283 A1Published application
Elastomeric bearing with heatable shims
AssigneeSikorsky Aircraft Corporation
InventorDavid N. Schmaling
Life of this patent
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Abstract
An electrically heatable elastomeric bearing according provides an electrically heatable elastomeric bearing shim layer which replace one or more of the metallic shims currently used in non-heatable elastomeric bearing designs. The heatable shim layers facilitate the maintenance of a constant bearing spring rate to prevent an increase to bearing loads and reduced strength that may otherwise occur at cold temperatures.
Claims17
A heatable elastomeric bearing comprising:
- a multiple of elastomeric material layers;
- and
- at least one heatable shim layer adjacent at least one of said multiple of elastomeric material layers.
A rotor system comprising:
- a first rotor system member;
- a second rotor system member;
- and
- a heatable elastomeric bearing mounted to said first rotor system and said second rotor system.
1 more element
A method of warming-up an elastomeric bearing comprising the steps of:
- (A) heating at least one heatable shim layers spaced between at least two of a multiple of elastomeric material layers of the elastomeric bearing.
Dependencies are inferred from the claim text.