OPERATING OIL COMPONENT RESUPPLY DEVICE AND METHOD FOR HYDRAULIC SYSTEM

PROBLEM TO BE SOLVED: To maintain the performance of operating oil while suppressing the deterioration of the operating oil by accurately determining a degree of deterioration of a component of the operating oil to be used for a hydraulic system and resupplying the optimum amount of component to the...

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Bibliographische Detailangaben
Hauptverfasser:	TANIGAWA YUICHIRO, ABEKAWA TOSHIJI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MEASURING MECHANICAL ENGINEERING PHYSICS SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To maintain the performance of operating oil while suppressing the deterioration of the operating oil by accurately determining a degree of deterioration of a component of the operating oil to be used for a hydraulic system and resupplying the optimum amount of component to the operating oil. SOLUTION: A viscosity measurement value at a fixed temperature is compared with a viscosity reference value for viscosity regulating agent at a corresponding temperature. When that the viscosity measurement value falls below the viscosity reference value for the viscosity regulating agent is determined, the viscosity regulating agent is resupplied to the operating oil until the viscosity measurement value gets to the viscosity reference value for the viscosity regulating agent. COPYRIGHT: (C)2011,JPO&INPIT