Patent · US Active

Friction discs having a structured ceramic friction layer and method of manufacturing the friction discs

US9046138B2 · kind B2 · utility

7Cited by

5References

8Claims

0Family size

Assignee

SGL CARBON SE · DE

Inventors

Andreas Kienzle · Thierhaupten, DE
Ingrid Kraetschmer · Meitingen, DE

Key dates

Filing date	Jun 28, 2013
Grant date	Jun 2, 2015
Priority date	—
Expiry date	Dec 4, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/213
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A cylindrical ring-shaped friction disc contains a support body, at least one friction layer, and in each case an intermediate layer arranged between the support body and the friction layer. The intermediate layer has mutually adjoining flat regions with different coefficients of thermal expansion. A method teaches how to produce such a friction disc, and to the use the friction disc as parts of brake and clutch systems, in particular for motor vehicles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.