Patent ID: 6068351
Filing Date: 2000-05-30
Classification: B60T,F16D

Abstract:
A braking axle for use on at least one wheel of a vehicle trailer, which comprises:at least one pump driven by said wheel;a volume of hydraulic fluid pressurized by said pump;means, responsive to a braking command, for controlling the degree of said fluid pressurization;means for cooling said pressurized fluid;said means for cooling comprising:first means for transforming said fluid pressure into a torquing force;means for dissipating heat accumulated into said fluid;means responsive to said torquing force for boosting said means for dissipating heat;wherein said means for transforming comprise a turbine driven by said pressurized fluid;said means for dissipating heat comprise a radiator;said means for boosting comprise a blower driven by said turbine and aimed toward said radiator; andsaid braking axle further comprises:an axle connected at one end to said wheel;a plurality of said pumps arranged in a circular pattern, coaxially with said axle;means, coupled to an opposite end of said axle, for actuating said pumps;an annular high-pressure chamber coaxial with said axle, said high pressure chamber being fed by said pumps;a circular evacuation chamber surrounded by said high pressure chamber, said circular evacuation chamber having at least one aperture into said evacuation chamber; anda rotary choke mounted within said evacuation chamber for restricting flow of fluid through said aperture.