Title:
内燃機関を潤滑し、該機関の排出制御システムの効率を改善する方法
Document Type and Number:
Japanese Patent JP5099868
Kind Code:
B2
Abstract:
Internal combustion engines exhibit improved efficiency of the emissions control system by using a lubricating oil composition of a base oil, an alkali or alkaline earth metal-containing detergent; a metal salt of one or more phosphorus-containing compounds represented by the formula (I), wherein X1 and X2 are independently O or S, and R1 and R2 are independently hydrocarbyl groups, the average total number of carbon atoms in R1 and R2 for the one or more phosphorus-containing compounds being at least 10.4; and an acylated nitrogen-containing compound having at least about 10 alphatic carbon atoms and a TBN of at least about 2; the lubricating oil composition being characterized by a phosphorus concentration of up to about 0.12% by weight and the substantial absence of copper, thereby generating a lean-phosphorus containing exhaust gas.
Inventors:
Wilk, Melody A.
Chamberlin, William Bee., The Third
Kelly, Jack Sea.
Abraham, William Dee.
Chamberlin, William Bee., The Third
Kelly, Jack Sea.
Abraham, William Dee.
Application Number:
JP2004511666A
Publication Date:
December 19, 2012
Filing Date:
June 05, 2003
Export Citation:
Assignee:
THE LUBRIZOL CORPORATION
International Classes:
C10M177/00; C10M101/02; C10M105/04; C10M107/02; C10M129/10; C10M129/50; C10M129/52; C10M129/54; C10M129/92; C10M133/56; C10M135/10; C10M135/12; C10M137/06; C10M137/10; C10M157/08; C10M159/20; C10M159/22; C10M159/24; C10M163/00; C10M169/04; C10M133/16; C10N10/02; C10N10/04; C10N20/00; C10N30/00; C10N30/04; C10N40/25; C10N70/00
Domestic Patent References:
| JP2000319682A | ||||
| JP9235579A | ||||
| JP9194866A | ||||
| JP6207191A | ||||
| JP2028294A | ||||
| JP2000063871A |
Foreign References:
| WO2001044419A1 |
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita