Improvements in motor vehicle transmissions having an Eddy current retarder brake, and in the mounting arrangement of these transmissions

摘要

The vehicles transmission system includes a Foucault current reducer (4) whose stator (5) is fixed to a casing (31) of a gear box by fixing elements (7), and whose rotor (6) is connected to the output shaft (32) of the gear box. The fixing elements include at least two rigid pieces (11,12) one of which is fixed to the stator and the other to the casing. Each of the two pieces has a slot into each other and the contact surfaces are separated by an elastomer layer (15) which adheres to each contact surface. This adhesive elastomer layer permits a limited relative angular displacement of the two rigid pieces (11,12) which are fixed relative to each other parallel to the airgap thickness which separates the stator and the rotor. The thickness of the elastomer layer (15) is between 1 to 3 mm.