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US 12,565,917 B2Granted
Friction linings for aluminum brake disks
AssigneeTMD Friction Services GmbH
InventorDirk Welp
Life of this patent
Estimating the term…
Abstract
Friction linings which contain more than 5 wt. % aluminum in the form of Al metal (powder) or of an Al alloy are suitable to ensure sufficiently high friction coefficients at little wear when combined with aluminum-containing brake disks or rotors.
Claims5
A motor vehicle brake system comprising:
- a brake disk or brake rotor containing 20% to 60% by volume of aluminum, said aluminum in a form of aluminum metal or aluminum alloy, said brake disk or brake rotor having a brake surface comprising aluminum adapted for contacting friction linings;
- and
- a friction lining used in conjunction with the brake disk or brake rotor, said friction lining consisting of:
- (a) from 10% to 20% by weight of aluminum alloy particles, wherein the aluminum alloy has the formula AlxZy, wherein Z stands for Mg and/or Ti, and x and y each mean ranges of 10% by weight up to and including 90% by weight, (b) from 2% to 8% by weight tin sulfides, (c) from 1% to 25% by weight aramide fibers, (d) from 0.5% to 2% by weight aluminum oxide, (e) from 3% to 7% by weight binder resin, (f) from 2% to 6% by weight resin filler powder, (g) from 5% to 8% by weight mica powder, (h) from 5% to 30% by weight baryte, (i) from 5% to 15% by weight iron oxide, (j) from 2% to 6% by weight graphite, and (k) from 10% to 20% by weight coke powder.
1 more element
Dependencies are inferred from the claim text.