Wet brake system for a rotating component including a plurality of discs

摘要

A brake system (10) for a rotating component (12) includes a plurality of discs (14) coupled to the component to rotate with the component about an axis, each disc having first and second opposite radial surfaces (22a, 22b) and a plurality of brake plates (16) fixed against rotation but linearly movable relative to the discs parallel to the axis, each brake plate having a braking surface (20). The discs and brake plate juxtaposed so that at least one of the radial surfaces of each disc is facing the braking surface of a brake plate. At least one the facing braking surface and the radial surface is provided with a plurality of grooves (24, 26). The grooves orientated to provide fluid flow paths across at least one of the facing braking surface and radial surface. An actuator axially moves the brake plate relative to the discs between an engaged position where braking surface is in engagement with a facing radial surface and a disengaged position where the braking surface is spaced from the facing radial surface. A sealed housing is provided in which the discs and brake plates reside, the house containing a volume of liquid through which the discs rotate.