Invention Application
- Patent Title: LUBRICATING OIL FOR NON-STAGE TRANSMISSION
- Patent Title (中): 润滑油用于非传动
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Application No.: US12665943Application Date: 2008-06-24
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Publication No.: US20100179079A1Publication Date: 2010-07-15
- Inventor: Hiroki Sekiguchi , Yukio Yoshida , Sumihiro Oda , Toshiyuki Tsubouchi , Hidetoshi Koga
- Applicant: Hiroki Sekiguchi , Yukio Yoshida , Sumihiro Oda , Toshiyuki Tsubouchi , Hidetoshi Koga
- Applicant Address: JP Chiyoda-ku, Tokyo
- Assignee: IDEMITSU KOSAN CO., LTD
- Current Assignee: IDEMITSU KOSAN CO., LTD
- Current Assignee Address: JP Chiyoda-ku, Tokyo
- Priority: JP2007-166808 20070625
- International Application: PCT/JP2008/061461 WO 20080624
- Main IPC: C10M169/04
- IPC: C10M169/04 ; C07C13/547 ; C07C13/40

Abstract:
Provided is a lubricating oil for continuously variable transmissions characterized by that used as a base oil are a synthetic oil I having the following properties: (a) a traction coefficient at 120° C. is 115% or more of that of 2,4-dicyclohexyl-2-methylpentane, (b) a viscosity at −40° C. is not higher than a viscosity (260 Pa·s) of 2,4-dicyclohexyl-2-methylpentane and (c) a viscosity index is 65 or higher and a synthetic oil II having a viscosity of 1 Pa·s or lower at −40° C. and that the above base oil has a specific property. The above lubricating oil is a lubricating oil for continuously variable transmissions which has a high traction coefficient even at high temperature and is endowed with a good low temperature fluidity and which is suited as a lubricating oil for continuously variable transmissions for automobiles.
Public/Granted literature
- US08338653B2 Lubricating oil for non-stage transmission Public/Granted day:2012-12-25
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