Title:
【発明の名称】内燃機関用の改良された無灰潤滑剤組成物
Document Type and Number:
Japanese Patent JP2975043
Kind Code:
B2
Abstract:
In accordance with the present invention, there are provided ashless heavy duty diesel crankcase lubricating oil compositions which comprise an oil of lubricating viscosity as the major component and (A) at least 2 wt.% of at least one high molecular weight ashless dispersant, (B) an antioxidant effective amount of at least one oil soluble antioxidant material, and (C) a corrosion inhibiting effective amount of at least one organo-sulfur azole or azoline compound, wherein the lubricating oil is characterized by a total sulfated ash (SASH) level of less than 0.01 wt.%.
Inventors:
GUREN HOORU FUETSUTAAMAN JUNIA
ARAN ARUBIN SHETERITSUCHI
ARAN ARUBIN SHETERITSUCHI
Application Number:
JP8504790A
Publication Date:
November 10, 1999
Filing Date:
April 02, 1990
Export Citation:
Assignee:
EKUSON CHEM PATENTSU INC
International Classes:
C10M137/14; C10M141/08; C10M141/10; C10M141/12; C10M167/00; C10M135/36; C10N30/04; C10N30/10; C10N30/12; C10N40/25; F02B3/06; F02B75/02; (IPC1-7): C10M141/08
Domestic Patent References:
| JP1163294A |
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)