Title:
油圧装置における劣化した油圧作動液の再生方法および装置
Document Type and Number:
Japanese Patent JP3987678
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide both a method and an apparatus for regenerating a deteriorated hydraulic fluid in a hydraulic system, capable of exactly removing deteriorated substances and impurities in a hydraulic fluid in use or after use. SOLUTION: This method for regenerating a deteriorated hydraulic fluid in a hydraulic system comprises firstly adsorbing and removing a phosphoric acid component in the fluid by a phosphoric acid component adsorption apparatus for carrying out an adsorption treatment under <=9.8 kPa pressure loss and then removing impurities while the hydraulic fluid which is recovered in an oil tank and is in use or after use is passed through a circulation line connected to the oil tank. This apparatus for regenerating the deteriorated hydraulic fluid in the hydraulic system comprises the phosphoric acid component adsorption apparatus 4 controlled so as to make a pressure loss <=9.8 kPa and an impurity removal apparatus 5 are successively integrated in series in the circulation line 3 which is connected to the oil tank 1 of the hydraulic system 20 and circulates the hydraulic fluid in use or after use.
Inventors:
Makoto Murai
Hideo Ito
Fujii Tsuyoshi
Fusao Ito
Hideo Ito
Fujii Tsuyoshi
Fusao Ito
Application Number:
JP2000249151A
Publication Date:
October 10, 2007
Filing Date:
August 21, 2000
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C10M175/00; B01D35/02; B01D37/04; C10N40/08
Domestic Patent References:
| JP5239490A | ||||
| JP11179348A | ||||
| JP8164202A | ||||
| JP6306499A | ||||
| JP6439807U | ||||
| JP54143781A | ||||
| JP4356598A |
Attorney, Agent or Firm:
Tatsuo Watanuki
Fumio Yamamoto
Fumio Yamamoto