Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1982-09-17
1984-10-16
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
60582, 303 10, 303119, B60T 802, B60T 1314
Patent
active
044771258
ABSTRACT:
Hydraulic brake systems are known which comprise antiskid control valves and a pressure fluid source where pressure fluid is fed via a valve device and an antiskid control valve to a wheel brake cylinder. The pressure fluid source includes two jointly driven pumps. The disadvantage of such a system is the constant presence of a high pump output although this high output is only rarely required. Therefore, according to the present invention, an energy saving is realized by having the suction connection of a first of two jointly driven pumps connected to a pressure fluid reservoir and the suction connection of a second of two jointly driven pumps connected to the pressure fluid outlet of an antiskid control valve.
REFERENCES:
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patent: 3521934 (1970-07-01), Leiber
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patent: 3675422 (1972-07-01), Drutchas et al.
patent: 3756666 (1973-09-01), Leiber
patent: 3836206 (1974-09-01), Leiber
patent: 3886848 (1975-06-01), Budecker et al.
patent: 3942844 (1976-03-01), Inada et al.
patent: 4033637 (1977-07-01), Leiber
Belart Juan
Budecker Ludwig
Kircher Dieter
Obersteiner Georg
Butler Douglas C.
Chaban Marvin M.
IT&T Industries, Inc.
Raden James B.
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