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
VENHAUS DAVID A
PASSUT CHARLES A
Application Number:
JP2004180085A
Publication Date:
January 13, 2005
Filing Date:
June 17, 2004
Export Citation:
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:
JPH11106776A | 1999-04-20 | |||
JP2001107074A | 2001-04-17 | |||
JPH11315296A | 1999-11-16 | |||
JPH05112791A | 1993-05-07 | |||
JP2001348591A | 2001-12-18 | |||
JP2000063876A | 2000-02-29 | |||
JP2004099900A | 2004-04-02 | |||
JP2004107645A | 2004-04-08 |
Attorney, Agent or Firm:
Heikichi Odashima