OIL PRESSURE APPARATUS FOR CONSTRUCTION VEHICLE

PURPOSE:To miniaturize a running-priority change-over valve, by making the whole discharge of oil from one side pump flow into the running-priority change- over valve, and by making as much as flow quantity of oil distributed to both the running change-over valves, flow into, on rectilinear running...

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Bibliographische Detailangaben
1. Verfasser:	SEKIKAWA KEIJI
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To miniaturize a running-priority change-over valve, by making the whole discharge of oil from one side pump flow into the running-priority change- over valve, and by making as much as flow quantity of oil distributed to both the running change-over valves, flow into, on rectilinear running priority. CONSTITUTION:When a running-priority change-over valve 47 is positioned on the left side, then the whole discharge of oil flows from the largest and one side pump P1, and when the valve 47 is switched and positioned on the right side, then the distributed discharge of oil from the other pump P2 flows. Then, the capacity of the running-priority change-over valve 47 is the sum of the whole discharge Q from one side pump, and (1/2)Q of the discharge from the other side pump. The capacity of the running-priority change-over valve 47 is reduced and the dimension is also reduced. In this way, the running-priority change-over valve can be miniaturized, and even if both the actuators in running system and working machine system are worked at the same time, the rectilinear running of a vehicle can be compensated.