Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1995-01-09
1996-04-30
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
188 85, 303 61, 303 87, 3031151, 3031164, B60T 1558, B60T 848
Patent
active
055118615
ABSTRACT:
A braking apparatus includes: a multi-pass rotary valve and an expansion-cylinder mounted in between a brake master cylinder and a plurality of wheel cylinders provided on the front wheels and the rear wheels, whereby upon treading of a brake pedal of a vehicle braking system and upon rotation of a rotor in the multi-pass rotary valve to alternatively flow a hydraulic oil towards the wheels cylinders and towards the expansion-cylinder to intermittently the vehicle wheels without locking the wheels for anti-locking safety purpose.
REFERENCES:
patent: 2815098 (1957-12-01), Olving
patent: 2821267 (1958-01-01), Olving
patent: 3361487 (1968-01-01), Vriend
patent: 3731979 (1973-05-01), Mikaila
patent: 4201422 (1980-05-01), Depas, Sr.
patent: 4568131 (1986-02-01), Blomberg et al.
patent: 4755007 (1988-07-01), Mollat
patent: 4962972 (1990-10-01), Pizzo
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