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FR-3168244-A1 - Dry clutch friction disc

FR3168244A1FR 3168244 A1FR3168244 A1FR 3168244A1FR-3168244-A1

Abstract

The invention relates to a dry clutch friction disc (1) comprising a web (2) and at least one two-layer friction lining (3) fixed to the web (2) by means of rivets (4), said friction lining (3) comprising: a friction layer (5) having an excitation factor less than 0 N.m.s over a temperature range of 50 to 300°C, an inner layer (6) disposed between the web (2) and the friction layer (5) and having an excitation factor greater than 0 N.m.s over a temperature range of 150 to 300°C, and a transition zone (7) disposed between the friction layer (5) and the inner layer (6), said transition zone (7) being formed by partial interpenetration of the materials of the friction layer (5) and the inner layer (6) and having a gradient of the excitation factor increasing from the friction layer (5) to the inner layer (6), said transition zone (7) extends above the rivets (4) in the direction of insertion of said rivets (4).

Inventors

  • Philippe Perret

Assignees

  • VALEO EMBRAYAGES

Dates

Publication Date
20260508
Application Date
20241104