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Title:
METHOD OF IMPROVING VEHICLE TRANSMISSION OPERATION THROUGH USE OF SPECIFIC LUBRICATING OIL COMPOSITIONS
Document Type and Number:
Japanese Patent JP2017025306
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method of improving vehicle transmission operation through the use of a specific power transmission fluid composition, and in particular, a method of improving a transmission incorporating a lubricated wet clutch.SOLUTION: A vehicle transmission incorporates a wet clutch lubricated by a transmission fluid, which contains a major amount of a lubricating oil and a minor amount of an additive composition. The additive composition includes: (i) a compound of the structural formula (I) in the figure, where a is an integer from 1 to 10 and R is a hydrocarbon group made by metallocene-catalyzed polymerization of alpha-olefin feedstock; (ii) a friction modifier; and (iii) an oil-soluble phosphorus compound.SELECTED DRAWING: None

Inventors:
RAYMOND WATTS
KEITH GORDA
KIM HAHNSOO
Application Number:
JP2016139968A
Publication Date:
February 02, 2017
Filing Date:
July 15, 2016
Export Citation:
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Assignee:
INFINEUM INT LTD
International Classes:
C10M133/56; C10M133/16; C10M137/02; C10M137/04; C10M137/10; C10M169/04; F16H45/02; F16H57/04
Domestic Patent References:
JP2001506302A2001-05-15
Foreign References:
US20120264665A12012-10-18
Attorney, Agent or Firm:
Takaki Nishijima
Disciple Maru Ken
Shinichiro Tanaka
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Satsuki Ichikawa
Hironobu Hattori
Gen Tashiro