F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
188/211, 138/84.
F15B 15/14 (2006.01) F16D 65/14 (2006.01) F16D 65/22 (2006.01)
Patent
CA 1193518
HYDRAULIC BRAKE ACTUATOR Abstract of the Disclosure A hydraulic brake actuator for a wedge type brake induces a tubular structure extending from the brake and housing an extended end of a stem of the wedge of the brake therein. A primary cylinder is mounted on the tubular structure and includes a primary piston mounted for sealed movement therein. The piston has a rod extending from one side thereof into the tubular structure to be operably connected to the extended end of the stem. A spring acts on a second side of the piston and is capable of moving the piston toward a first position within the cylinder for actuation of the brake. Hydraulic fluid can be selectively introduced to the primary cylinder at the first side of the piston to cause movement thereof in opposition to the spring to a second position to prevent actuation of the brake by the spring. An annular space between an interior surface of the tubular structure and an exterior surface of the rod is sealed to prevent the hydraulic fluid from escaping from the cylinder. The sealing includes a floating seal carrier surrounding the rod and supporting a seal which extends inwardly to make sealing contact with the exterior of the rod and a mechanical face seal at the end of the floating seal carrier to prevent the escape of hydraulic fluid behind the floating seal carrier.
442045
Kirby Eades Gale Baker
Rockwell International Corporation
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