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US 6,142,263 AGranted
Multi-layer brake element with enhanced thermal insulation
AssigneeFerodo Limited
InventorMahmoud Lotfipour
Life of this patent
Estimating the term…
Abstract
An intermediate layer (4) of a relatively low thermal conductivity, high resistance to thermal degradation elastomeric material is interposed between a friction lining (3) and a relatively soft elastomeric layer (5), the latter being bonded to a backing plate (2).
Claims21
A brake element comprising:
- a friction material lining,
- a backing plate being spaced from the friction material layer and carrying a relatively soft layer of elastomeric material,
- and a further layer of elastomeric material interposed between, and directly affixed to, said relatively soft layer of elastomeric material and said friction material lining, said further layer of elastomeric material having a thermal conductivity which is low relative to said friction material lining and a resistance to thermal degradation which is high relative to said relatively soft layer of elastomeric material.
A disk brake pad comprising:
- a metal backplate and a friction layer separated by first and second elastomeric layers;
- said metal backplate engaged with said first elastomeric layer and said friction lining engaged with said second elastomeric layer;
- said first and second elastomeric layers directly engaged with each other, and wherein said second elastomeric layer is softer than said friction lining and has as resistance to thermal degradation higher than said first elastomeric layer.
A disk brake pad comprising:
- a metal backplate and a friction lining separated by first and second elastomeric layers;
- said metal backplate engaged with said first elastomeric layer and said friction lining engaged with said second elastomeric layer;
- said first and second elastomeric layers directly engaged with each other, and wherein said second elastomeric layer is softer than said friction lining and has a thermal conductivity lower than said friction lining.
Dependencies are inferred from the claim text.