Title:
FINAL-DRIVE LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/1994/014932
Kind Code:
A1
Abstract:
A final-drive lubricating oil composition comprising a base oil and, added thereto, (A) 0.1-5 wt.% of a phosphoric ester, a phosphorous ester or an alkylamine salt of a phosphoric ester, (B) 0.1-5 wt.% of an organic acid represented by the general formula: R1-CON(CH3)CH2COOH (wherein R1 represents C1-C18 alkyl or C2-C18 alkenyl) and (C) 3-15 wt.% of a sulfurized olefin or an alkyl sulfide, each based on the whole composition. The composition serves to further improve the transmission efficiency at the differential gear under varied conditions of input torque, input rotational speed and oil temperature as compared with the conventional compositions containing additives based on sulfur and phosphorous compounds, thus leading to fuel consumption improvement.
Inventors:
TAJIMA NOBORU (JP)
TAKEMITSU KOJI (JP)
OHTSUKA NAOTO (JP)
SHIOMI MASAAKI (JP)
TAKEMITSU KOJI (JP)
OHTSUKA NAOTO (JP)
SHIOMI MASAAKI (JP)
Application Number:
PCT/JP1993/001918
Publication Date:
July 07, 1994
Filing Date:
December 28, 1993
Export Citation:
Assignee:
TONEN CORP (JP)
TAJIMA NOBORU (JP)
TAKEMITSU KOJI (JP)
OHTSUKA NAOTO (JP)
SHIOMI MASAAKI (JP)
TAJIMA NOBORU (JP)
TAKEMITSU KOJI (JP)
OHTSUKA NAOTO (JP)
SHIOMI MASAAKI (JP)
International Classes:
C10M169/02; C10M141/10; C10N30/02; C10N30/06; C10N40/04; (IPC1-7): C10M141/10
Foreign References:
| JPH02298590A | 1990-12-10 | |||
| JPH02182787A | 1990-07-17 | |||
| JPS6361091A | 1988-03-17 | |||
| JPS61241396A | 1986-10-27 |
Other References:
See also references of EP 0677570A4
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