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Title:
USE OF DISPERSANT VISCOSITY INDEX IMPROVER IN EXHAUST GAS RECIRCULATION ENGINE
Document Type and Number:
Japanese Patent JP2005008887
Kind Code:
A
Abstract:

To obtain a lubricant reducing oil thickening and sludge formation, and to provide an engine using the lubricant.

An olefin copolymer dispersant viscosity index improver is used in a cooled exhaust gas recirculation (EGR) engine so as to reduce or eliminate oil thickening and sludge formation. Thereby, rigorous oil viscosity and emission standards are exactly satisfied.


Inventors:
MISHRA MUNAMAYA K
VENHAUS DAVID A
PASSUT CHARLES A
Application Number:
JP2004180085A
Publication Date:
January 13, 2005
Filing Date:
June 17, 2004
Export Citation:
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Assignee:
ETHYL CORP
International Classes:
C10M169/04; C10M101/02; C10M101/04; C10M105/04; C10M105/06; C10M105/36; C10M107/08; C10M107/34; C10M107/50; C10M133/58; C10M135/22; C10M135/28; C10M137/10; C10M149/04; C10M149/06; C10M149/10; C10M151/02; F02B47/08; C10N10/04; C10N20/04; C10N30/04; C10N40/25; F02M25/07; (IPC1-7): C10M169/04; C10M101/02; C10M101/04; C10M105/04; C10M105/06; C10M105/36; C10M107/08; C10M107/34; C10M107/50; C10M137/10; C10M149/04; C10M149/10
Domestic Patent References:
JPH11106776A1999-04-20
JP2001107074A2001-04-17
JPH11315296A1999-11-16
JPH05112791A1993-05-07
JP2001348591A2001-12-18
JP2000063876A2000-02-29
JP2004099900A2004-04-02
JP2004107645A2004-04-08
Attorney, Agent or Firm:
Heikichi Odashima