Ventilated disk brake
AssigneeNissan Motor Co., Ltd.
InventorsYutaka Hagiwara, Toshiaki Takada, Tetu Yamazaki
Life of this patent
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Abstract
A ventilated disk brake includes a pair of brake pads which is substantially the same as the prior art, and a rotor. The rotor has a brake-pad engaging portion in which a pair of brake-pad engaging walls are formed to be pressed between and by the pair of brake pads. A plurality of cooling ribs extend radially between the pair of brake-pad engaging walls. The cooling ribs are formed in such a manner that the weight distribution thereof is ununiform in the peripheral direction thereof along the brake-pad engaging portion. For example, the cooling ribs can be different in thickness, length and/or arrangement interval. such a design can be made on the basis of empirical data.
Claims12
A ventilated disk brake comprising:
- a pair of brake pads;
- a rotor having a brake-pad engaging portion with a pair of brake-pad engaging walls arranged to be pressed between and by the pair of brake pads;
- a plurality of cooling ribs extending radially between the pair of brake-pad engaging walls, the spacing and thickness pattern of said ribs being randomized so that any identical spacing and thickness pattern is not repeated.
A ventilated disk brake comprising:
- a pair of brake pads;
- a rotor having a brake-pad engaging portion with a pair of brake-pad engaging walls arranged to be pressed between and by the pair of brake pads;
- and
- a plurality of cooling ribs extending radially between the pair of brake-pad engaging walls, the thickness and pitch pattern of said ribs being randomized so that any identical pattern is not repeated.
A ventilated disk brake comprising:
- a pair of brake pads;
- a rotor having a brake-pad engaging portion with a pair of brake-pad engaging walls arranged to be pressed between and by a pair of brake pads;
- and
- a plurality of cooling ribs extending radially between the pair of brake-pad engaging walls, the thickness pattern of said ribs being randomized so that any identical pattern is not repeated.
A ventilated disk brake comprising:
- a pair of brake pads;
- a rotor having a brake-pad engaging portion with a pair of brake-pad engaging walls arranged to be pressed between and by the pair of brake pads;
- and
- a plurality of cooling ribs extending radially between the pair of brake-pad engaging walls, the circumferential spacing between and the thicknesses of said ribs being randomized in a manner such that uniformly distributed resonance waves are prevented from occuring.
Dependencies are inferred from the claim text.