Patent ID: 7604097

Claim:
A brake system for use in a vehicle, the brake system comprising: a) a housing defining a cavity, the bottom of the cavity forming a sump for oil; b) a ring gear, having an outer circumference, rotatably mounted in the housing, the ring gear having a first side and a second side; c) a member forming an oil accumulation cavity, the member proximate the first side of the ring gear and extending outward, away from the second side; d) the member having an opening proximate its top, the opening for receiving oil from the ring gear as the ring gear rotates in oil; e) the ring gear having a plurality of teeth, wherein when the teeth rotate through the oil in the sump, oil is brought up by the ring gear and teeth and then falls, by force of gravity, into the oil accumulation cavity; f) the ring gear having an aperture from the first side to the second side, the aperture in fluid communication with the oil accumulation cavity; g) at least one reaction plate and one friction plate positioned proximate the second side of the ring gear, the plates having a central bore; and h) the aperture in fluid communication with the central bores, wherein oil in the accumulation cavity moves through the aperture to the central bores.