Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1990-04-06
1992-06-23
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 3, 303 15, 303119SV, B60T 864
Patent
active
051237180
ABSTRACT:
A brake valve for an automatic brake system includes an actuator responsive to feedback pressure from a brake for regulating pressure in the brake proportional to an electrical signal applied to the actuator. The actuator exerts a force that is opposed by feedback pressure acting against a predetermined area of the actuator. Valves operated by the actuator provide for alternately communicating a supply of pressurized air to the brake cylinders or discharging air pressure from the cylinders. A low-flow vent valve provides for discharging small quantities of air from my valve. However, a pilot operated high-flow dump valve supersedes the low-flow vent valve for discharging larger quantities of air and permits my valve to be controlled by smaller actuating forces.
REFERENCES:
patent: 2194762 (1940-03-01), Maliphant
patent: 2527883 (1950-10-01), Ingres et al.
patent: 2919162 (1959-12-01), Roberts
patent: 3525555 (1970-08-01), Meyer et al.
patent: 3768519 (1973-10-01), Morse
patent: 3857615 (1974-12-01), Acar
patent: 3907379 (1975-09-01), Lawson
patent: 3924902 (1975-12-01), Engle
patent: 3941428 (1976-03-01), Rothwell et al.
patent: 4145091 (1979-03-01), Bueler et al.
patent: 4539542 (1985-09-01), Clark
patent: 4557527 (1985-12-01), Stumpe
patent: 4604600 (1986-08-01), Clark
patent: 4605197 (1986-08-01), Casey et al.
patent: 4619289 (1986-10-01), Tsuru et al.
patent: 4640558 (1987-02-01), Nomura et al.
patent: 4773447 (1988-09-01), Imanaka et al.
patent: 4778227 (1988-10-01), Bayliss
patent: 4821770 (1989-04-01), Parrott et al.
patent: 4859005 (1989-08-01), Rey et al.
patent: 4860794 (1989-08-01), Parrott et al.
patent: 5015046 (1991-05-01), Bissell
Advertisement Brochure entitled "MPP/MPZ Electro-Pneumatic Proportional Pressure Regulator Valve", published by Festo Corporation, 1988.
G. W. Lisk Company, Inc.
Graham Matthew C.
LandOfFree
Valve for automatic brake system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve for automatic brake system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve for automatic brake system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-928760