Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1988-12-14
1990-07-17
Kashnikow, Andres
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303113, 303116, 303119, B60T 862
Patent
active
049417126
ABSTRACT:
A brake fluid pressure control apparatus comprises a fluid pressure control valve provided in a supply passage communicating a master cylinder with wheel cylinders, a stepped piston slidably fitted into the fluid pressure control valve and urged by a return spring in one direction toward a stop piston, a fluid pressure chamber provided in the central portion of the fluid pressure control valve in such a manner as to communicate with the supply passage, and a back pressure chamber provided in the other side of the stepped postion. The pressure fluid returned to the back pressure chamber at the time of a decrease of the pressure during anti-lock control is received by the stepped piston and is returned through a throttle portion to the master cylinder side, thereby relieving any kickback acting upon the brake pedal.
REFERENCES:
patent: 3782786 (1974-01-01), Matsumara
patent: 4050749 (1977-09-01), Harries et al.
patent: 4453782 (1984-06-01), Arikawa et al.
patent: 4715666 (1987-12-01), Farr
patent: 4762376 (1988-08-01), Matsubara
patent: 4765692 (1988-08-01), Miyake
Akebono Brake Industry Co. Ltd.
Graham Matthew C.
Kashnikow Andres
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