Unlock instant, AI-driven research and patent intelligence for your innovation.

Lubricating oil composition for four stroke engine

A lubricating oil composition, four-stroke technology, applied in the directions of lubricating composition, petroleum industry, additives, etc., can solve problems such as insufficient viscosity, achieve good performance and suppress sludge

Inactive Publication Date: 2017-12-01
IDEMITSU KOSAN CO LTD
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Engine oils used in gas-fired cogeneration systems and power generation equipment require high-viscosity lubricants such as SAE J300#40 in order to cope with high loads, and as base oils, even neutral oils (such as 500N mineral oil) are sometimes not available full viscosity

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~5

[0164] [Examples 1-5, Comparative Examples 1-4]

[0165] Lubricating oil compositions of Examples and Comparative Examples formulated in Table 1 were produced, and properties of the lubricating oil compositions were measured. In addition, the lubricating oil compositions of Examples and Comparative Examples were evaluated by a heat pipe test and a panel coking test. The results are shown in Table 1. It should be noted that the panel coking test was performed at panel temperatures of 300°C and 320°C.

[0166] [Table 1]

[0167] .

[0168] ※The calcium content and phosphorus content are the calcium content and phosphorus content in each lubricating oil composition, expressed based on the total amount of the composition.

[0169] ※ Each component in Table 1 is shown below.

[0170] Base oil: 500N mineral oil (hydrogenated refined mineral oil), kinematic viscosity at 100°C is 10.9mm 2 / s, sulfur content is less than 0.01% by mass, API classification: Class 2

[0171] Poly...

Embodiment 6~9

[0189] [Examples 6-9, Comparative Examples 5-7]

[0190] The lubricating oil compositions of Examples and Comparative Examples formulated as shown in Table 2 were produced, and the properties of the lubricating oil compositions were measured. In addition, the lubricating oil compositions of the respective Examples and Comparative Examples were evaluated by a panel coking test and a high-temperature deterioration test. The results are shown in Table 2. It should be noted that the panel coking test was performed at panel temperatures of 300°C and 310°C.

[0191] [Table 2]

[0192] .

[0193] ※The calcium content and phosphorus content are the calcium content and phosphorus content in each lubricating oil composition, expressed based on the total amount of the composition.

[0194] Among the components in Table 2, polybutene-6 is as follows, and other components are the same as above.

[0195] Polybutene-6: Polyisobutene with a number average molecular weight of 750, not h...

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

PropertyMeasurementUnit
viscosity indexaaaaaaaaaa
viscosity indexaaaaaaaaaa
Login to View More

Abstract

This lubricating oil composition for a four stroke engine contains a base oil (A) and 0.5-10 mass% of a polyolefin (B) which has at least constituent units derived from isobutene and which has a number average molecular weight of 500-10,000. The lubricating oil composition has a sulfated ash content of 0.3-1.2 mass%.

Description

technical field [0001] The present invention relates to a lubricating oil composition for a four-stroke cycle engine, and relates to a lubricating oil composition that can be suitably used for a four-stroke cycle engine that operates continuously at a high load in, for example, marine or stationary power generation equipment. Background technique [0002] Engine oils used in gas-fired cogeneration systems and power generation equipment require high-viscosity lubricants such as SAE J300#40 in order to cope with high loads, and as base oils, even neutral oils (such as 500N mineral oil) are sometimes not available full viscosity. Therefore, in the past, high-viscosity base materials such as bright stock and ethylene-propylene copolymer (OCP) were sometimes blended. [0003] In addition, it is conventionally known, for example, as disclosed in Patent Document 1, that lubricating oil compositions used in diesel engines for ships and engines for power generation have a kinematic ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M129/10C10M133/12C10M133/16C10M133/56C10M137/10C10M139/00C10M143/06C10M159/22C10M159/24C10N10/04C10N20/00C10N20/02C10N20/04C10N30/00C10N30/04C10N40/25
CPCC10M143/06C10M165/00C10M2203/1085C10M2205/022C10M2205/04C10M2207/026C10M2207/141C10M2207/262C10M2215/28C10M2219/044C10M2205/026C10M2215/064C10M2223/045C10N2020/04C10N2010/04C10N2030/04C10N2030/08C10N2030/02C10N2030/10C10N2030/43C10N2030/45C10N2040/25C10M2205/024C10M2205/06C10N2060/14C10M139/00C10M159/24C10M133/16C10M137/10C10M169/04C10M159/22C10M133/56C10M169/044C10M2207/023C10M2207/144C10M2215/086
Inventor 山崎广隆
Owner IDEMITSU KOSAN CO LTD