Title:
タービン油、及びタービン油の使用方法
Document Type and Number:
Japanese Patent JP6885656
Kind Code:
B2
Abstract:
A turbine oil used in a turbine of a jet engine, containing: a base oil (A) containing a polyol ester (A1); an antioxidant (B) containing an amine-based antioxidant (B1); a polymethacrylate (C) having a weight average molecular weight of 50,000 to 600,000; and an alkyl aromatic compound (D), having a content of the component (D) of 1,000 parts by mass or less per 100 parts by mass of a total resin content of the component (C), and satisfying the following requirements (1) and (2): requirement (1): a viscosity index of 140 or more; and requirement (2): a coking amount attached to a panel of 80 mg or less after a panel coking test under the prescribed condition. The turbine oil has a high viscosity index to such an extent that an oil film can be retained in the use under a high temperature environment as in a turbine of a jet engine mounted on an aircraft, and is excellent in low temperature viscosity characteristics while retaining excellent heat resistance.
Inventors:
Shinji Aoki
Application Number:
JP2017044352A
Publication Date:
June 16, 2021
Filing Date:
March 08, 2017
Export Citation:
Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
C10M169/04
Domestic Patent References:
| JP2014523471A | ||||
| JP2004277712A | ||||
| JP2005325241A | ||||
| JP2005194416A | ||||
| JP48091462A | ||||
| JP2001501991A | ||||
| JP5194331A |
Foreign References:
| EP2055763A1 | ||||
| WO2010147016A1 | ||||
| US20120028861 |
Attorney, Agent or Firm:
Tamotsu Otani
Yoshio Takizawa
Toshihide Ishihara
Yoshio Takizawa
Toshihide Ishihara