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Lubricating oil composition

A technology of lubricating oil composition and compound, applied in the directions of lubricating composition, petroleum industry, additives, etc., can solve the problem of not being able to reflect the friction reduction effect, etc., and achieve the effect of excellent friction reduction effect and excellent wear resistance.

Inactive Publication Date: 2012-08-15
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when conventional lubricating oils are used for sliding parts treated with DLC, the desired level of friction reduction effect may not be exhibited

Method used

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  • Lubricating oil composition
  • Lubricating oil composition
  • Lubricating oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7、 comparative example 1～9

[0222] A lubricating oil composition was prepared by mixing the base oils and additives shown in Table 1 in the ratios shown in Table 1. The properties, composition and performance of the composition are shown in Table 1.

[0223] [Table 1]

[0224] Form 1

[0225]

[0226]

[0227] [Table 2]

[0228] Form 2

[0229]

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PUM

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Abstract

Provided is a lubricating oil composition, in which a specific sulfur-containing compound and a specific polar group-containing compound are blended with a base oil, and, therefore, which has good abrasion resistance, even if containing phosphorus, sulfur and sulfated ash each in a small amount, and exhibits excellent friction-reducing effect, even if being used in a DLC-treated sliding part.

Description

technical field [0001] This invention relates to lubricating oil compositions. In more detail, it relates to a product that has excellent wear resistance even with low phosphorous content, low sulfur content, and low sulfated ash content, and exhibits an excellent friction reduction effect even when used in diamond-like carbon (DLC)-treated sliding parts. lubricating oil composition. Background technique [0002] In today's automobile engines, in order to purify exhaust gases, oxidation catalysts, three-way catalysts, NO X Sorption type reduction catalyst, diesel particulate filter (DPF), etc. These exhaust gas purifying devices are known to be adversely affected by metal components, phosphorus and sulfur in engine oil, and reduction of these components is essential in terms of measures to prevent device deterioration. [0003] In addition, in recent years, for the purpose of saving fuel consumption, various technologies have been developed for automobiles and the like, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/08C10M129/76C10M133/06C10M133/16C10M135/20C10N20/00C10N30/06C10N40/25
CPCC10M135/20C10M141/08C10M2203/1006C10M2207/026C10M2207/046C10M2207/126C10M2207/289C10M2209/084C10M2215/02C10M2215/04C10M2215/064C10M2215/08C10M2215/28C10M2223/045C10M2203/1025C10M2209/105C10M2215/042C10M2215/082C10M2219/082C10M2219/084C10M2219/085C10M2219/022C10M2219/024C10M2219/066C10M2219/09C10M2219/106C10N2030/44C10N2030/43C10N2030/42C10N2030/45C10N2040/042C10N2040/04C10N2030/06C10N2040/252C10N2040/255C10N2040/25C10N2040/08C10N2080/00C10N2020/071C10N2020/02C10N2010/04C10N2060/14C10M129/76C10M133/06C10M133/16
Inventor 镰野秀树
Owner IDEMITSU KOSAN CO LTD