F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
138/78.1
F15B 9/17 (2006.01) F15B 21/08 (2006.01)
Patent
CA 1039622
HYDRAULIC SYSTEM Abstract of the Disclosure An electro hydraulic system for controlling a hydraulic function includes a pump and a reservoir connected to the function through a manually operable, electro-hydraulic control valve. The valve is positionable to either side of a neutral ports blocked position and may be held to one side by the engaging of a spring loaded detent. The detent is disengaged by an electrical signal produced by a comparator when a preset, operator-controlled, limiting signal is equalled by a feed back sensor signal propor- tional to the output of the function. The system will allow initial activation of the valve to provide continuous operation of the function until the limiting input is reached at which time the function will be stopped. The system further provides manual override of the electrical control system to permit operation of the valve when the feedback signal is greater than the limiting input signal.
248579
Miller Wayne R.
Penfold Garn F.
Seipp Jan V.
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