Hydraulic line and valve assembly for construction vehicle auxil

Details Hydraulic line and valve assembly for construction vehicle auxil Hydraulic line and valve assembly for construction vehicle auxil

1996-12-27

1998-06-23

Nguyen, Hoang

Motors: expansible chamber type

Plural relatively movable or rigidly interconnected working...

Condition responsive means for modifying working member...

91532, F15B 1100

Patent

active

057689733

ABSTRACT:
An hydraulic line and valve assembly for supplying hydraulic pressure to an hydraulic auxiliary implement, the implement being adapted for attachment to a construction vehicle having an hydraulic power system, the implement having an hydraulic motor driven workpiece, and the implement having a plurality of hydraulic positioning means; the hydraulic line and valve assembly comprising an on demand priority flow control valve, a branched primary pressure line an end of which being fixedly attached to the on demand priority flow control valve, a plurality of position control valves, the position control valves being fixedly attached to the opposing branched ends of the primary pressure line, and a branched hydraulic load signaling line extending from the position control valves to the on demand priority flow control valve, the hydraulic load signaling line being capable of sending pressure signals to the on demand priority flow control valve causing said valve to divert hydraulic pressure to the position control valves.

REFERENCES:
patent: 3994133 (1976-11-01), Pfeil et al.
patent: 4005636 (1977-02-01), Dunn
patent: 4430926 (1984-02-01), Wallace
patent: 4966066 (1990-10-01), Kauss et al.
patent: 5060556 (1991-10-01), Weirich et al.
patent: 5072802 (1991-12-01), Tischer
patent: 5471908 (1995-12-01), Lech

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