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1. (WO2017182459) STRUCTURED BRAKE DISC

Pub. No.:    WO/2017/182459    International Application No.:    PCT/EP2017/059165
Publication Date: Fri Oct 27 01:59:59 CEST 2017 International Filing Date: Wed Apr 19 01:59:59 CEST 2017
IPC: F16D 65/12
F16D 65/092
F16D 65/18
Applicants: VOLVO TRUCK CORPORATION
Inventors: JOHANSSON, Staffan
ANDERSSON, Tobias
Title: STRUCTURED BRAKE DISC
Abstract:
A brake disc (10) for arrangement in a vehicle to rotate around a rotational axis (11). First and second annular braking surfaces (15a-b) extend radially between an inner braking surface radius (Ri) and an outer braking surface radius (Ro). Each of the first and second braking surfaces has an annular proximal portion (17), an annular distal portion (18), and an annular central portion (19). At least one of the first and second braking surfaces is structured to protrude from a base plane (16a, 16b) perpendicular to the rotational axis (11) to exhibit a surface profile cross-section (14a, 14b) with a plane including the rotational axis (11). A protrusion distance (ha(r), hb(r)) from the base plane (16a, 16b) to the surface profile cross-section (14a, 14b) as a function of radial distance (r) from the rotational axis (11) exhibits a minimum protrusion distance (ha,min, hb,min) at a minimum protrusion radial position (Rmin) in the central portion (19), and the protrusion distance (ha(r), hb(r)) increases with increasing radial distance from the minimum protrusion radial position (Rmin) everywhere in the central portion (19).