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AssigneeThe B. F. Goodrich Company
InventorsRobert William Hyde, William Terry Holzworth, Bradley John Baden, Gary Charles Riebe
Estimating the term…
A friction brake includes a friction disk assembly having high dynamic stability against undesired vibration during a braking event. The friction disk assembly comprises an annular structural carrier of carbon and/or ceramic or other suitable structual material, preferably a fiber reinforced composite material, including a plurality of recessed regions and torque drive notches spaced around its circumferential direction, and a friction lining of carbon and/or ceramic or other suitable structural material, preferably a fiber reinforced composite material, mounted on the carrier, the friction lining having a flat wear (rubbing) face and an obverse face including raised areas corresponding to and matingly engaging the recessed regions of the carrier to prevent rotation of the lining relative to the carrier. The lining may be formed of of virgin or recycled carbon, ceramic or other suitable friction material. The lining may be retained to the carrier by mechanical fasteners such as rivets or clips. The assembly may be refurbished by simple replacement of the worn lining without need of machining. The carrier and the lining are preferably formed as unitary annular members.
A friction disk comprising an annular carrier of carbon or ceramic material including a plurality of recessed regions and a plurality of torque drive notches spaced around its circumferential direction, and an annular friction lining of carbon or ceramic material mounted on the carrier, the friction lining having a flat wear face and an obverse face including raised areas having walls corresponding to and matingly engaging the walls of the recessed regions of the carrier to provide torque transfer capability between the lining and the carrier.
A method of refurbishing a worn friction disk comprising an annular carrier of carbon or ceramic material including a plurality of recessed regions and a plurality of torque drive notches spaced around its circumferential direction, and a friction lining of carbon or ceramic material mounted on the carrier, the friction lining having a flat wear face and an obverse face including raised areas having walls corresponding in shape and height and matingly engaging the walls of recessed regions of the carrier that correspond in shape and depth to provide torque transfer capability between the lining and the carrier, the method comprising replacing the worn friction lining with new friction lining of carbon or ceramic material to provide a desired assembly thickness, the new friction lining having a flat wear face and an obverse face including raised areas having walls corresponding to and matingly engaging the walls of recessed regions of the carrier to provide torque transfer capability between the lining and the carrier.
An aircraft brake assembly having a brake stack comprising a plurality of interleaved stator and rotor friction disks wherein at least one of the disks in the brake stack comprises an annular carrier comprised of carbon or ceramic material and including a plurality of recessed regions and a plurality of torque drive notches spaced around its circumferential direction, and a friction lining of carbon or ceramic material mounted on the carrier, the friction lining having a flat wear face and an obverse face including raised areas having walls corresponding to and matingly engaging the walls of the recessed regions of the carrier to provide torque transfer capability between the lining and the carrier.
Dependencies are inferred from the claim text.