Cooling system for disc brake of vehicle - uses fan with hinged blades which can fold against fan shaft

摘要

The disc brake is for a motor vehicle having an electrically operated cooling air delivery feed secured to the vehicle in the region of an air conducting channel. It has several rotor blades radially mounted on a drive shaft. The rotor blades (6) each have a film hinge (7) near the drive shaft (5) which they can fold back during idling or low speed conditions. ADVANTAGE - Cooling system in which the rotor blades do not create an aerodynamic barrier whent he brakes are not heated beyond a trigger temperature.