192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1995-05-15
1996-12-24
Pitts, Andrea L.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
744115, 188 723, 188 724, 192 4A, 303 89, B60K 4126
Patent
active
055866301
ABSTRACT:
A parking brake assembly positively engages the drive gear or another component of a wheel drive train and thus cannot slip. Accordingly, the brake assembly can be smaller in size, is less expensive to construct and install, and requires lower release pressures than are required for friction brake assemblies of comparable capacity. When used with industrial vehicles powered via an axle-mounted drive gear, the brake assembly preferably includes a pinion which meshes with the drive gear and a piston on which the pinion is supported. The piston (1) is spring applied towards a first position in which the piston and thus the shaft and the drive gear are mechanically locked from rotation and (2) can be pressure-driven to a second position permitting free rotation of the piston, pinion, and drive gear.
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Pitts Andrea L.
Wacker Corporation
LandOfFree
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