A brake actuator has a plurality of actuator housing portions, a parking piston axially displaceable within one of the actuator housing portions, and a service piston axially displaceable independently of the parking piston within another of the actuator housing portions. A brake actuator rod projecting from the other of the actuator housing portions moves outward of that actuator housing portion upon at least one of fluid supply to a first substantially torus-shaped service brake bladder and fluid relief from a second substantially torus-shaped parking brake bladder. The brake actuator rod can be moved inward into the other of the actuator housing portions upon fluid relief from the first substantially torus-shaped service brake bladder, and fluid supply to the second substantially torus-shaped parking brake bladder or both.
Brake actuator using fluid bladder or bladders as fluid chambers
2021-05-11
Patent
Elektronische Ressource
Englisch
BRAKE ACTUATOR USING FLUID BLADDER OR BLADDERS AS FLUID CHAMBERS
Europäisches Patentamt | 2021
|BRAKE ACTUATOR USING FLUID BLADDER OR BLADDERS AS FLUID CHAMBERS
Europäisches Patentamt | 2021
|