27-11-2003 дата публикации
Номер: US20030217897A1
The present invention relates to a friction brake ( 1, 31, 41, 51 ), in particular a disc brake, for a motor vehicle with a friction element ( 3, 33, 43, 53 ), e.g. a brake disc, coupled to the rotation of a vehicle wheel, forming a friction pairing of the friction brake ( 1, 31, 41, 51 ) with at least one associated brake lining ( 4, 5, 34, 35, 46 - 49 ), and with at least one clamping device ( 6, 26 ) for pressing at least one brake lining ( 5, 34, 35, 46 - 48 ) to the friction element ( 3, 33, 43, 53 ). At least one controllable friction clutch ( 11, 37, 54 ) is provided for using the rotational energy of the friction element ( 3, 33, 43, 53 ) in order to obtain the clamping force of the friction brake ( 1, 31, 41, 51 ), the friction clutch being coupled on its input end to the rotation of the friction element ( 3, 33, 43, 53 ) and on its output end to the clamping device ( 6, 26 ). Functional advantages are achieved because a friction pairing of the friction clutch ( 11, 37, 54 ) is provided independently of the friction pairing of the friction brake ( 1, 31, 41, 51 ). This eliminates undesired mutual influences. Altogether, such a friction brake ( 1, 31, 41, 51 ) obviates the need for an additional energy source for generating a brake clamping force.
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