| 摘要 |
<p>A braking band (14) of a disc (10) for a ventilated -type disc brake, uncommonly capable of a high cooling and high resistance to mechanical and thermal stresses, extends between an inner diameter (D1) and an outer diameter (D2), said braking band (14) comprises two plates (16, 18) mutually facing and defining an interspace (22), mutually linked by heat dissipation and connecting means or members (20). At least some of said connecting means are shaped as small columns projecting from a plate towards the opposite plate in the form of pillars (20), which are grouped in at least one circumferentially arranged row or rank (30). At least some of said pillars (20) of said at least one rank (30) have, in a plane substantially parallel to the air flow along the ventilation ducts, a substantially rhombus- or diamond- shaped section with four vertexes 35 joined by four sides, wherein said sides 36 defining said section are concave to form a star shape</p> |
