Title:
油圧装置及び油圧作動油組成物
Document Type and Number:
Japanese Patent JP7168403
Kind Code:
B2
Abstract:
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
Inventors:
Kazuhiro Yagishita
Akatsuki Nonaka
Akatsuki Nonaka
Application Number:
JP2018186717A
Publication Date:
November 09, 2022
Filing Date:
October 01, 2018
Export Citation:
Assignee:
eneos corporation
International Classes:
F15B21/06; C10M129/10; C10M133/06; C10M169/04
Domestic Patent References:
| JP2005060526A | ||||
| JP2005060527A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano
Shohei Kumagai
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano
Shohei Kumagai