HYDRAULIC DEVICE AND HYDRAULIC ACTUATION OIL COMPOSITION

• Main Authors: YAGISHITA KAZUHIRO, NONAKA AKIRA
• Format: Patent
• Language: English; Japanese
• Published: 09.04.2020
• Subjects: BLASTING; CHEMISTRY; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; FUELS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; LUBRICANTS; LUBRICATING COMPOSITIONS; MECHANICAL ENGINEERING; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; TECHNICAL GASES CONTAINING CARBON MONOXIDE; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION; WEAPONS

To provide a hydraulic actuation oil composition capable of suppressing occurrence of sludges while suppressing occurrence of lower fatty acids, and a hydraulic device using the hydraulic actuation oil composition.SOLUTION: A hydraulic device 1 comprises: an oil storage unit 2 in which a hydraulic actuation oil composition is stored; a pumping unit 3 that pumps the hydraulic actuation oil composition; a control unit 5 that controls the hydraulic pressure, direction or flow rate of the pumped hydraulic actuation oil composition; and a conversion unit 6 that converts the hydraulic pressure of the controlled hydraulic actuation oil composition into mechanical power. The hydraulic actuation oil composition contains a lubricating base oil, a phenolic antioxidant, and a primary or secondary aliphatic amine having 8 or more carbon atoms and containing no oxygen as a constituent element.SELECTED DRAWING: Figure 1 【課題】低級脂肪酸の発生を抑制しつつ、スラッジの発生も抑制できる油圧作動油組成物、及び、該油圧作動油組成物を用いた油圧装置を提供すること。【解決手段】油圧作動油組成物が貯蔵された油貯蔵部２と、油圧作動油組成物を圧送する圧送部３と、圧送された油圧作動油組成物の油圧、方向又は流量を制御する制御部５と、制御された油圧作動油組成物の油圧を機械的な動力に変換する変換部６と、を備える油圧装置であって、油圧作動油組成物が、潤滑油基油と、フェノール系酸化防止剤と、炭素数が８以上であり構成元素として酸素を含まない１級又は２級脂肪族アミンと、を含有する、油圧装置１。【選択図】図１