HYDRAULIC CONTROL DEVICE FOR WORKING VEHICLE

PROBLEM TO BE SOLVED: To provide a hydraulic control device for controlling required pressure to be kept for a circuit with a PTO clutch and enabling to supply pressure oil to a branch circuit with the other device while eliminating a regulator valve. SOLUTION: A PTO clutch control circuit 40 is con...

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Bibliographische Detailangaben
Hauptverfasser:	KAJINO KOJI, OKUNISHI FUMITAKE, TODA TAKENORI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a hydraulic control device for controlling required pressure to be kept for a circuit with a PTO clutch and enabling to supply pressure oil to a branch circuit with the other device while eliminating a regulator valve. SOLUTION: A PTO clutch control circuit 40 is connected to the downstream side in a pressure oil supplying direction beyond a charge oil supply circuit 22, and an other-device output oil path 50 for supplying pressure oil to the other device having an intermittent working form is branch-connected to a site on the downstream side in the pressure oil supplying direction beyond a branch site to the charge oil supply circuit, separately from the PTO clutch control circuit 40. At the branch site to the other-device output oil path 50, a pressure compensation valve 40 is provided for throttling operation to reduce the amount of pressure oil to be supplied to the other-device output oil path 50 when pressure on the side of the PTO clutch control circuit 40 is down to a set value or lower. COPYRIGHT: (C)2010,JPO&INPIT