Devices and systems to prevent brake dust accumulation in drum brakes
AssigneeBendix Commercial Vehicle Systems LLC
InventorDavid J. Goodell
Life of this patent
Estimating the term…
Abstract
A brake drum usable in a vehicle includes a substantially cylindrical wall having an end surface at one axial end thereof, with the substantially cylindrical wall defining a radially inwardly facing wear surface to be engaged by a friction lining upon brake actuation during operation of the vehicle. A radially extending drum section is joined by way of a corner section to another axial end of the substantially cylindrical wall and, together with the substantially cylindrical wall and the corner section, forms a drum interior volume. To provide for discharge of particles from the drum interior volume, the substantially cylindrical wall has a circumferentially extending cut away section in the wear surface located adjacent to the one axial wall end.
Claims15
A brake drum usable in a vehicle, comprising:
- a substantially cylindrical wall having an end surface at one axial cylindrical wall end, the substantially cylindrical wall defining a radially inwardly facing wear surface to be engaged by a friction lining upon brake actuation during operation of the vehicle, and
- a radially extending drum section joined by way of a corner section to another axial end of the substantially cylindrical wall and, together with the substantially cylindrical wall and the corner section, forming a drum interior volume,
- wherein the substantially cylindrical wall has a circumferentially extending cut away section in the wear surface located adjacent to the one axial end providing for discharge of particles from the drum interior volume,
- wherein the cut away section defines a trapezoid, and
- wherein the trapezoid includes shorter and longer bases, and the shorter base faces outboard and is located closer to the radially extending drum section than the longer base.
A vehicle including a drum brake having a brake drum, the brake drum comprising:
- a substantially cylindrical wall having an end surface at one axial cylindrical wall end, the substantially cylindrical wall defining a radially inwardly facing wear surface to be engaged by a friction lining upon brake actuation during operation of the vehicle, and
- a radially extending drum section joined by way of a corner section to another axial end of the substantially cylindrical wall and, together with the substantially cylindrical wall and the corner section, forming a drum interior volume,
- wherein the substantially cylindrical wall has a circumferentially extending cut away section in the wear surface located adjacent to the one axial end providing for discharge of particles from the drum interior volume,
- wherein the cut away section defines a trapezoid, and
- wherein the trapezoid includes shorter and longer bases, and the shorter base faces outboard and is located closer to the radially extending drum section than the longer base.
Dependencies are inferred from the claim text.