Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Lubricating oil composition and use thereof

a technology of lubricating oil and composition, applied in the field of lubricating oil composition, can solve the problems of adverse effects of after-treatment devices of internal combustion engines and fuel combustion engines

Inactive Publication Date: 2006-12-14
SHELL OIL CO
View PDF34 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sulfated ash, sulfur and phosphorus concentrations of lubricating oil compositions conventionally used in internal combustion engines may have adverse effects on such after-treatment devices.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lubricating oil composition and use thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1 and example 2

[0071] An SAE 10W-30 lubricating oil composition (Example 1) and an SAE 15W-40 lubricating oil composition (Example 2) as described in Table 1 were prepared containing formulation containing a compounds a) to f).

[0072] The lubricating oil composition of Example 1 and Example 2 had a sulfated ash content, a phosphorus content and a sulfur content of as provided in Table 1 above.

[0073] The lubricating oil compositions were tested as described above and the results are shown in Table 2.

TABLE 2Example 1Example 2Oxidation Induction Time (@ 210° C.)13 min.14 min.

[0074] As can be seen from Table 2, the lubricating oil composition has good oxidation stability for an engine oil.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A lubricating oil composition having a sulfur content of from 0.3 to 0.5 wt. %, a phosphorus content of from 0.10 to 0.13 wt. % and a sulfated ash content of from 0.1 to 1.1 wt. %, based on the total weight of the lubricating oil composition is provided. The lubricating oil composition contains at least one Group II mineral base oil; at least one alkali and / or alkaline earth metal alkyl salicylate; an ashless dispersant; at least one zinc didithiophosphate; and at least one aminic ashless antioxidant and at least one phenolic ashless antioxidant.

Description

[0001] The present application claims the benefit of pending U.S. Provisional Patent Application Ser. No. 60 / 682,360 filed May 18, 2005, the entire disclosure of which is hereby incorporated by reference.FIELD OF THE INVENTION [0002] The present invention relates to a lubricating oil composition and its use. BACKGROUND OF THE INVENTION [0003] Due to environmental considerations, exhaust after-treatment devices are often fitted to vehicles in order to reduce particulate matter and NOx emissions therefrom. [0004] However, the sulfated ash, sulfur and phosphorus concentrations of lubricating oil compositions conventionally used in internal combustion engines may have adverse effects on such after-treatment devices. [0005] Sulfated ash is the total weight percent of ash in a lubricating oil composition. The sulfated ash content in a lubricating oil composition is related to the total metal content therein. Sulfated ash may be conveniently measured according to ASTM D874. [0006] In view ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C10L1/22
CPCC10M169/044C10M2203/1006C10N2240/10C10M2205/04C10M2207/026C10M2207/144C10M2207/262C10M2215/064C10M2215/28C10M2223/045C10N2210/01C10N2210/02C10N2230/02C10N2230/04C10N2230/10C10N2230/42C10N2230/43C10N2230/45C10M2205/06C10N2010/02C10N2010/04C10N2030/02C10N2030/04C10N2030/10C10N2030/42C10N2030/43C10N2030/45C10N2040/25
Inventor COLBOURNE, DAVIDURBANAK, MATTHEW ROBERTSELBY, KEITH
Owner SHELL OIL CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com