Patent ID: 8353392

Claim:
A vented brake disk with heat dissipation, comprising: a substantially circular, annular brake disk body formed with an inner circumferential surface and an outer circumferential surface; at least one cooling channel formed inside said brake disk body and having a length extending from said inner circumferential surface to said outer circumferential surface, said cooling channel having an opening formed at said outer circumferential surface, said cooling channel having a cross sectional area increasing incrementally over only a portion of said length of said cooling channel in a direction from said inner circumferential surface to said outer circumferential surface, the incremental increase of said cross sectional area being defined by overlapping bores directed at different angles with respect to one another, said bores overlapping up to said opening; and a multiplicity of substantially evenly distributed flow obstructions formed on a channel wall bounding said at least one cooling channel, said flow obstructions being defined by a helical thread formed in said cooling channel.