排気弁座の後退を防止するための方法 - Chevron オロナイト company LLC

Title:

排気弁座の後退を防止するための方法

Document Type and Number:

Japanese Patent JP5583144

Kind Code:

B2

Abstract:

A method for preventing or inhibiting exhaust valve seat recession in a natural gas fueled internal combustion engine is disclosed. The method involves lubricating the engine with a lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity, and (b) a minor amount of a natural gas engine oil additive package, wherein the lubricating oil composition is substantially free of each of any zinc compounds and alkaline earth metal salts of a condensation product of an alkylene polyamine, an aldehyde and a substituted phenol.

More Like This:

WO/2005/030913	ASHLESS STATIONARY GAS ENGINE LUBRICANT
JP5113309	Zinc-free continuously variable transmission fluid
JP4658320	Imide succinate compound, its production method, lubricating oil additive and lubricating oil composition for internal combustion engine

Inventors:

Melanie F Tobias
The John F ヴォンスターデン

Application Number:

JP2011551187A

Publication Date:

September 03, 2014

Filing Date:

February 17, 2010

Export Citation:

Click for automatic bibliography generation Help

Assignee:

Chevron オロナイト company LLC

International Classes:

C10M163/00; C10M129/10; C10M133/16; C10M133/56; C10M159/22; C10M159/24; C10N10/04; C10N30/00; C10N40/25

Attorney, Agent or Firm:

Patent business corporation Asamura patent firm

Previous Patent: JPS5583143

Next Patent: ION INJECTOR