Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1985-10-18
1987-01-20
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
303 10, 303 13, 303 92, 303115, 303116, 303119, 303117, B60T 802, B60T 1318, B60T 1368
Patent
active
046376623
ABSTRACT:
Disclosed is an integrated isolation/modulation valve for use in an anti-lock brake system which incorporates a spool valve element and a solenoid actuated valve. The solenoid actuated valve responds to control signals from an anti-lock brake system, the valve being normally closed and operable to an open position to produce a differential pressure across the spool valve. Movement of the spool valve in response to the differential pressure interrupts fluid communication between the brake system's master cylinder and wheel cylinders and simultaneously connects the wheel cylinder to the system's pressurized fluid source through an orifice which effects controlled building of brake pressure.
REFERENCES:
patent: 3503655 (1970-03-01), Heimler
patent: 3674317 (1972-07-01), Mangold
patent: 3975061 (1976-08-01), Kondo et al.
patent: 4129341 (1978-12-01), Pauwels
patent: 4182536 (1980-01-01), Pauwels
patent: 4264109 (1981-04-01), Knox et al.
patent: 4404803 (1983-09-01), Steffes
patent: 4492413 (1985-01-01), Belart et al.
Allied Corporation
Butler Douglas C.
Decker Ken C.
Welch Ronald D.
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