Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1978-02-09
1980-04-22
Blix, Trygve M.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
60591, 303 22R, B60T 1304
Patent
active
041991966
ABSTRACT:
A dual system brake control valve for an automotive vehicle includes a main body having a pair of cylinder bores, a pair of inlets communicating with the cylinder bores each and a pair of outlets communicating with the cylinder bores each, the inlets being connected to a master cylinder for a dual system; a pair of stepped pistons slidably fitted into the cylinder bores, and each having bores communicating with the inlet and outlet, the stepped pistons each receiving a rightward pushing force due to the fluid pressure at the inlet, and a leftward pushing force due to the fluid pressure at the outlet; a spring guide contacting with the stepped pistons; a prestressed spring for pushing rightward the stepped pistons through the spring guide; and a pair of valves arranged in the bores of the stepped pistons, and put in the opened and closed conditions in response to the difference between the leftward pushing force to the stepped pistons each and the sum of the rightward pushing force and the tension force of the prestressed spring.
REFERENCES:
patent: 3169800 (1965-02-01), Oberthur
patent: 3290882 (1966-12-01), Oberthur
patent: 3441318 (1969-04-01), Bueler
patent: 3467440 (1969-09-01), Strein
patent: 3650569 (1972-03-01), Kawabe et al.
patent: 3669505 (1972-06-01), Falk
patent: 3738709 (1973-06-01), Stokes
patent: 3843213 (1974-10-01), Schroder
patent: 4026607 (1977-05-01), Hess
Blix Trygve M.
Eisenzopf Reinhard J.
The Nippon Air Brake Co., Ltd.
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