Periodic-wave disc brake rotor
AssigneeUnited States of America as represented by the Administrator of NASA
InventorJonathan A. Lee
Life of this patent
Estimating the term…
Abstract
A disc brake rotor includes an annular portion having a first surface and a second surface in opposition to the first surface. The first surface and second surface traverse a periodic wave. An inner radial edge of the annular portion traverses an inner periodic wave and an outer radial edge of the annular portion traverses an outer periodic wave. A pattern and a period are the same for the periodic wave, the inner periodic wave, and the outer periodic wave. Thermal radiation elements are coupled to portions of at least one of the inner radial edge and the outer radial edge.
Claims16
A disc brake rotor, comprising:
- an annular portion having a first surface and a second surface in opposition to said first surface, said annular portion having an axial thickness T between said first surface and said second surface, said first surface and said second surface traversing a periodic wave wherein an inner radial edge of said annular portion traverses an inner periodic wave and an outer radial edge of said annular portion traverses an outer periodic wave, and wherein a pattern and a period are the same for said periodic wave, said inner periodic wave, and said outer periodic wave;
- and
- thermal radiation elements coupled to said inner radial edge between adjacent crests of said inner periodic wave and coupled to said outer radial edge between adjacent crests of said outer periodic wave.
A disc brake rotor, comprising:
- an annular portion having a first surface and a second surface in opposition to said first surface, said annular portion having an axial thickness T between said first surface and said second surface, said first surface and said second surface traversing a periodic wave wherein an inner radial edge of said annular portion traverses an inner periodic wave and an outer radial edge of said annular portion traverses an outer periodic wave, and wherein a pattern and a period are the same for said periodic wave, said inner periodic wave, and said outer periodic wave;
- thermal radiation elements coupled to said inner radial edge between adjacent crests of said inner periodic wave and coupled to said outer radial edge between adjacent crests of said outer periodic wave, said thermal radiation elements having an axial thickness t, and wherein a ratio of t/T is in a range of 0.1 to 0.3;
- and
- at least one of said first surface and said second surface includes dimples.
Dependencies are inferred from the claim text.