Vehicle brake system

A brake for a wheel of a vehicle comprising an enclosed housing, an axle assembly extending into said housing and adapted to be attached to the wheel of the vehicle for rotation therewith, said axle assembly having drive surfaces which form an external profile of said axle assembly having two opposed flat surfaces and two opposed arcuate surfaces, a shaft sleeve engaged by said drive surfaces, said shaft sleeve having a splined outer surface, a plurality of stationary discs in said housing, a plurality of rotatable discs carried by said splined outer surface, said rotatable discs being positioned to be engaged by said stationary discs, and a piston, said piston being moveable to cause said stationary discs to engage said rotatable discs to apply a braking torque to the wheel.

A brake for a wheel of a vehicle comprising a housing, an axle assembly adapted to be attached to the wheel of the vehicle for rotation therewith, a plurality of stationary discs in said housing, a plurality of rotatable discs carried by said axle assembly, said rotatable discs being positioned to be engaged by said stationary discs, a first fluid in said housing, a piston, said piston including a ring and a rib, said piston being moveable by a second fluid of a different composition than said first fluid to cause said ring to engage a said stationary disc to cause said stationary discs to engage said rotatable discs to apply a braking torque to the wheel, and a seal adjacent to said rib to prevent said first fluid from communicating with said second fluid, said seal including a material which is inert to the composition of both said first and second fluids.

A brake for a wheel of a vehicle comprising a housing having open axial ends, an end plate attached to one axial end of said housing and adapted to be attached to the vehicle, a seal between said end plate and said housing, an axle assembly received in the other axial end of said housing and including a mounting plate closing the other end of said housing and adapted to be attached to the wheel for rotation therewith, said axle assembly including a shaft extending from said mounting plate and toward said end plate, first bearings between said shaft and said housing, second bearings between said shaft and said end plate, a seal between said housing and said mounting plate, a fluid in said housing, a disc brake assembly immersed in said fluid, and a piston adapted to activate said brake assembly to apply a braking torque to the wheel.

A brake for a wheel of a vehicle comprising a housing having open axial ends, an end plate attached to one axial end of said housing and adapted to be attached to the vehicle, a seal between said end plate and said housing, an axle assembly received in the other axial end of said housing and including a mounting plate closing the other end of said housing and adapted to be attached to the wheel for rotation therewith, said axle assembly including a shaft extending from said mounting plate and toward said end plate, said end plate including an end cap positioned adjacent to the end of said shaft, a seal between said housing and said mounting plate, a fluid in said housing, a disc brake assembly immersed in said fluid, and a piston adapted to activate said brake assembly to apply a braking torque to the wheel.

A brake for a wheel of a vehicle comprising a housing having open ends, a plate attached to one end of said housing and adapted to be attached to the vehicle, a seal between said plate and said housing, an axle assembly received in the other end of said housing and adapted to be attached to the wheel of the vehicle for rotation therewith, said axle assembly having drive surfaces, a shaft sleeve engaged by said drive surfaces, said shaft sleeve having a splined outer surface, a plurality of stationary discs in said housing, a plurality of rotatable discs carried by said splined outer surface, said rotatable discs being positioned to be engaged by said stationary discs, at least one bracket carried by said housing, each said stationary disc having at least one ear received in said bracket, a first fluid in said housing, a seal between said housing and said axle assembly, a piston, said piston including a ring and a rib, said piston being moveable by a second fluid to cause said ring to engage a said stationary disc to cause said stationary discs to engage said rotatable discs to apply a braking torque to the wheel, and a seal adjacent to said rib to prevent said first fluid from communicating with said second fluid.