Drum brake apparatus for electric vehicle, and electric vehicle with the drum brake apparatus
AssigneeSchaeffler Technologies AG & Co. KG
InventorsDoris Maria Wimmer, Marc Finkenzeller, David Stringfellow
Life of this patent
Estimating the term…
Abstract
A drum brake includes a brake drum device, a brake device and a cooling device. The brake drum device forms a brake chamber and includes a brake drum with an inner circumference. The brake device includes brake shoes and is arranged to press the brake shoes against the inner circumference to generate a braking torque by converting kinetic energy into heat energy. The cooling device includes a fluid chamber and a cooling fluid arranged in the fluid chamber for transporting the heat energy. The brake drum device is arranged in the fluid chamber and fluid-tight relative to an environment.
Claims18
A drum brake apparatus for an electric vehicle,
- with a brake drum device, wherein the brake drum device includes a brake drum and forms a brake chamber, and
- with a brake device, wherein the brake device has brake shoes and wherein the brake device is designed or arranged to press the brake shoes against an inner circumference of the brake drum in the brake chamber in order to generate a braking torque and to convert kinetic energy into heat energy,
- with a cooling device for transporting away the heat energy via a cooling fluid,
- wherein:
- the cooling device forms a fluid chamber, wherein the cooling fluid is arranged in the fluid chamber and wherein the brake drum device is arranged in the fluid chamber, so that the brake chamber is arranged in the fluid chamber and is thereby arranged fluid-tight or dust-tight in relation to an environment.
A drum brake, comprising:
- a brake drum device forming a brake chamber and comprising a brake drum with an inner circumference;
- a brake device comprising brake shoes, the brake device arranged to press the brake shoes against the inner circumference to generate a braking torque by converting kinetic energy into heat energy;
- and
- a cooling device comprising:
- a fluid chamber;
- and
- a cooling fluid arranged in the fluid chamber for transporting the heat energy, wherein the brake drum device is arranged in the fluid chamber and fluid-tight relative to an environment.
Dependencies are inferred from the claim text.