Title:
無段変速機用潤滑油組成物
Document Type and Number:
Japanese Patent JP4691233
Kind Code:
B2
Abstract:
To provide a lubricating oil composition for continuously variable transmission which ensures both a high coefficient of friction between metals required for a push belt-type CTV oil and an excellent wear preventing property relative to a belt and a pulley. A lubricating oil composition for continuously variable transmission is provided, which comprises a lubricating base oil made of a mineral oil and/or a synthetic oil formulated with a metal detergent and a phosphorus-based wear preventive characterized in that a ratio between a content (ppm) of a metal derived from said metal detergent and based on the total weight of the lubricating oil composition and a total base number (mg KOH/g) ranges 0.75-4.5 (ppm/mg KOH/g), and a ratio between the content (ppm) of the metal derived from said metal detergent and a content of phosphorus derived from said phosphorus-based wear preventive ranges 0.5-2.0 (ppm/ppm).
Inventors:
Takehisa Sato
Takanori Kugimiya
Takanori Kugimiya
Application Number:
JP2000167143A
Publication Date:
June 01, 2011
Filing Date:
June 05, 2000
Export Citation:
Assignee:
TonenGeneral Sekiyu KK
International Classes:
C10M169/04; C10M125/24; C10M137/02; C10M137/04; C10M137/08; C10M137/10; C10M159/20; C10M159/22; C10M159/24; C10M163/00; C10M167/00; C10N10/02; C10N10/04; C10N20/00; C10N30/04; C10N30/06; C10N40/04
Domestic Patent References:
| JP2000109872A | ||||
| JP2000109867A | ||||
| JP2000109875A | ||||
| JP9100487A |
Attorney, Agent or Firm:
Kenji Kawabi