Disc brake with friction coupling e.g. for private motor car - has friction linings brought into contact with disc by energy abstracted from rotating wheel by electromagnetic coupling

摘要

The brake disc (13) secured to the hub (12) of the wheel is gripped on both sides by friction pads (18.1, 18.2) in a floating saddle (17) which encloses a piston (21) driven by hydraulic pressure from a relatively small piston (25) carrying a roller (26). The electromagnetic friction coupling (32) has one part (33) stationary on a limb (15) of the axle, and the other part (35) rotatable and axially displaceable with its own friction lining (37). ADVANTAGE - The brake is controllable by very low power, the requisite energy for brake application being taken from the braked wheel within a fraction of one revolution.