Title:
TURBINE OIL, AND METHOD FOR USING TURBINE OIL
Document Type and Number:
WIPO Patent Application WO/2018/164218
Kind Code:
A1
Abstract:
Provided is a turbine oil which includes: a base oil (A) including a polyol ester (A1); an antioxidant (B) including an amine-based antioxidant (B1); a polymethacrylate (C) having a weight average molecular weight in the range of 50000-600000; and an alkyl aromatic compound (D). The content of component (D) per 100 parts by mass of the total amount of resin in component (C) is not more than 1000 parts by mass. The turbine oil is used in a turbine of a jet engine, and satisfies: requirement (1), namely the viscosity index is 140 or higher; and requirement (2), namely the amount of coking after a panel coking test under prescribed conditions is 80 mg or lower. The turbine oil has a viscosity index which is high enough to be able to maintain an oil film, even if used in a high temperature environment such as in a turbine of a jet engine mounted to an aeroplane, and exhibits excellent low temperature viscosity characteristics, while exhibiting excellent heat resistance.
Inventors:
AOKI SHINJI (JP)
Application Number:
PCT/JP2018/008941
Publication Date:
September 13, 2018
Filing Date:
March 08, 2018
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/04; C10M105/38; C10M127/06; C10M133/12; C10M145/14; C10N20/00; C10N20/02; C10N20/04; C10N30/02; C10N30/08; C10N40/13
Foreign References:
| JP2004277712A | 2004-10-07 | |||
| JP2005325241A | 2005-11-24 | |||
| JP2005194416A | 2005-07-21 | |||
| JPS4891462A | 1973-11-28 | |||
| US20120028861A1 | 2012-02-02 | |||
| EP2055763A1 | 2009-05-06 | |||
| JP2001501991A | 2001-02-13 | |||
| JPH05194331A | 1993-08-03 | |||
| JP2002003878A | 2002-01-09 |
Other References:
See also references of EP 3594316A4
Attorney, Agent or Firm:
HIRASAWA, Kenichi et al. (JP)
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