Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1991-04-12
1992-11-10
Oberleitner, Robert J.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
303 11, 188151A, B60T 1300
Patent
active
051618621
ABSTRACT:
An improved hydraulically actuated brake system for off-road heavy vehicles is disclosed that include a first accumulator, a second accumulator, a first manual and pilot actuated brake valve for controlling the flow from the first accumulator to the front brakes and to a first and a second pressure comparing devices and a second manual and pilot actuated brake valve for controlling the flow from the second accumulator to the first and second pressue comparing devices. The higher pressure from the first and second pressure comparing devices is output to the rear brakes so the front brakes are set by the pressure in the first accumulator while the rear brakes are set by the higher pressure of the first and second accumulators. A separate manually actuated brake valve controls the flow from the second accumulator to a third pressure comparing device which also is connected to receive the output of the first manual and pilot actuated brake valve. The higher pressure from the third pressure comparing device is provided to the first and second pressure comparing devices thereby providing a system capable of applying multiple brakes through multiple controllers with separate circuits.
REFERENCES:
patent: 3672729 (1972-06-01), Blakey
patent: 4128276 (1978-12-01), Beck et al.
patent: 4166654 (1979-09-01), Snodgrass
patent: 4307916 (1981-12-01), Straut et al.
patent: 4758052 (1988-07-01), Bechman et al.
Kunz James F.
Thomas Donald R.
Komatsu Dresser Company, A General Partnership
Oberleitner Robert J.
Young Lee W.
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