JPS56116901A - Maintenance method for hydraulic device - Google Patents
Maintenance method for hydraulic deviceInfo
- Publication number
- JPS56116901A JPS56116901A JP1838380A JP1838380A JPS56116901A JP S56116901 A JPS56116901 A JP S56116901A JP 1838380 A JP1838380 A JP 1838380A JP 1838380 A JP1838380 A JP 1838380A JP S56116901 A JPS56116901 A JP S56116901A
- Authority
- JP
- Japan
- Prior art keywords
- inactive gas
- hydraulic device
- air
- tank
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
PURPOSE: To make it possible to inhibit oxidation of an hydraulic device, even if a water-glycol system hydraulic oil is used for the hydraulic device, by closing an oil tank, filling the air-phase portion in the tank with an inactive gas and by adjusting the filling volume of the inactive gas responding to liquid level fluctuations in the oil tank.
CONSTITUTION: A cover 1b is installed on the brim of a vessel body 1a through a packing 2. A tank 1 is tightly closed. An inactive gas is supplied into the atomosphere B in the oil tank 1 from a gas cylinder 5. The air melted in the hydraulic oil A is gradually replaced by the inactive gas until constant equilibrium is established between the air and inactive gas. The volume of air in the hydraulic device is reduced to almost null resulting in the atomosphere B containing nearly 100% inactive gas. Therefore, oxidation of the hydraulic device can by suppressed, even if a water-glyco system hydraulic oil is used.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1838380A JPS56116901A (en) | 1980-02-15 | 1980-02-15 | Maintenance method for hydraulic device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1838380A JPS56116901A (en) | 1980-02-15 | 1980-02-15 | Maintenance method for hydraulic device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56116901A true JPS56116901A (en) | 1981-09-14 |
Family
ID=11970183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1838380A Pending JPS56116901A (en) | 1980-02-15 | 1980-02-15 | Maintenance method for hydraulic device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56116901A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6058903U (en) * | 1983-09-29 | 1985-04-24 | 株式会社島津製作所 | Oil tank oil deterioration prevention device |
JPH02266102A (en) * | 1989-04-06 | 1990-10-30 | Nissei Plastics Ind Co | Reservoir for working oil containing water |
JP2002013481A (en) * | 2000-06-28 | 2002-01-18 | Sumitomo Seika Chem Co Ltd | Liquefied gas sending-out device |
JP2007045491A (en) * | 2005-08-11 | 2007-02-22 | Nippon Steel Corp | Method for replacing atmosphere in liquid container |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5138119A (en) * | 1974-09-27 | 1976-03-30 | Hitachi Construction Machinery | OIRUTANKU |
-
1980
- 1980-02-15 JP JP1838380A patent/JPS56116901A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5138119A (en) * | 1974-09-27 | 1976-03-30 | Hitachi Construction Machinery | OIRUTANKU |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6058903U (en) * | 1983-09-29 | 1985-04-24 | 株式会社島津製作所 | Oil tank oil deterioration prevention device |
JPH02266102A (en) * | 1989-04-06 | 1990-10-30 | Nissei Plastics Ind Co | Reservoir for working oil containing water |
JP2002013481A (en) * | 2000-06-28 | 2002-01-18 | Sumitomo Seika Chem Co Ltd | Liquefied gas sending-out device |
JP2007045491A (en) * | 2005-08-11 | 2007-02-22 | Nippon Steel Corp | Method for replacing atmosphere in liquid container |
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