Invention Publication
EP2489721A4 GREASE COMPOSITION FOR BEARING OF WIND POWER GENERATOR
有权
FETTZUSAMMENSETZUNGFÜRDAS LAGER EINES WINDKRAFTGENERATORS
- Patent Title: GREASE COMPOSITION FOR BEARING OF WIND POWER GENERATOR
- Patent Title (中): FETTZUSAMMENSETZUNGFÜRDAS LAGER EINES WINDKRAFTGENERATORS
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Application No.: EP10823469Application Date: 2010-10-15
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Publication No.: EP2489721A4Publication Date: 2013-06-26
- Inventor: NAMIKI MINORU , DONG DAMING , YOSHINARI TERASU
- Applicant: KYODO YUSHI
- Assignee: KYODO YUSHI
- Current Assignee: KYODO YUSHI
- Priority: JP2009238433 2009-10-15
- Main IPC: C10M169/02
- IPC: C10M169/02 ; C10M101/02 ; C10M105/04 ; C10M105/18 ; C10M105/32 ; C10M107/02 ; C10M115/08 ; C10M135/10 ; C10N20/02 ; C10N30/00 ; C10N30/02 ; C10N30/06 ; C10N30/12 ; C10N40/02 ; C10N50/10
Abstract:
The invention provides a grease composition for bearings used in wind power generators, containing a base oil which has a kinematic viscosity of 10 to 70 mm 2 /s at 40°C and a pour point of -40°C or less, and a diurea compound as a thickener, for example, a diurea compound represented by formula (1) where R 1 and R 2 are both C8-alkyl group. The grease composition for bearings used in wind power generators according to the invention can meet the requirements in terms of the seizure life and the pumpability as well as the fatigue life (flaking life).
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