Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1993-12-07
1995-08-15
Oberleitner, Robert J.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031191, 303900, B60T 846
Patent
active
054413362
ABSTRACT:
A fluid pressure regulating device for an anti-skid control device includes a master cylinder having therein a first pressure chamber and a second pressure chamber, a first wheel cylinder, a first electromagnetic valve of normally open type, a second wheel cylinder, a second electromagnetic valve of normally open type, a first conduit for connecting the first pressure chamber to the first wheel cylinder and the second wheel cylinder via the first electromagnetic valve and the second electromagnetic valve, respectively, a first pump for sucking irreversibly fluids in the first cylinder and the second cylinder via an orifice in such a manner that the resultant fluids are expected to be discharged irreversibly into the first conduit, a third wheel cylinder, a third electromagnetic valve of normally open type, a fourth wheel cylinder, a fourth electromagnetic valve of normally open type, a second conduit for connecting the third pressure chamber to the third wheel cylinder and the fourth wheel cylinder via the third electromagnetic valve and the fourth electromagnetic valve, respectively, a second pump for sucking irreversibly fluids in the third cylinder and the fourth cylinder via an orifice in such a manner that the resultant fluids are expected to be discharged irreversibly into the second conduit, and a motor for driving the first pump and the second pump.
REFERENCES:
patent: 5046788 (1991-09-01), Lindenman
patent: 5219210 (1993-06-01), Machara
Aisin Seiki Kabushiki Kaisha
Oberleitner Robert J.
Poon Peter M.
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