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Use of a lubricant in an internal combustion engine

A technology for lubricants and applications, which is applied to the application field of lubricants in internal combustion engines, and can solve problems such as increasing fuel consumption and output

Inactive Publication Date: 2014-03-26
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regeneration of diesel particulate filter increases fuel consumption and NO through temperature increase in regeneration mode x output

Method used

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  • Use of a lubricant in an internal combustion engine
  • Use of a lubricant in an internal combustion engine
  • Use of a lubricant in an internal combustion engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] In experiments using back-to-back tests, a pair of Mercedes C class passenger cars powered by Euro 4 diesel engines were blended with a GTL base oil (Oil A) or a mineral hydrogenated wax (hydrowax) based Group III base oil (Oil B) A comparable 5W-40 engine crankcase lubricant formulation runs. Each vehicle was run with the lubricant in an A-B-A or B-A-B sequence to allow for varying effects between vehicles. The DPT is monitored by a pair of thermocouples upstream and downstream of the DPT.

[0061] DPT regeneration frequency is monitored by temperature differential peaks across the DPT and back pressure peaks in the exhaust system. The trap regeneration frequency is continuously monitored with a data logger throughout the 10,000 mile oil change interval (ODI).

[0062] fuel composition

[0063] Two automotive gas oil compositions were prepared: a Fischer-Tropsch automotive gas oil (F-T AGO) blend consisting of base fuel (S040990) with 250 mg / kg of R655 lubricity p...

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Abstract

The present invention relates to the use of a lubricant in a diesel engine equipped with a regenerable diesel particulate trap, wherein the lubricant comprises a base oil component having a paraffin content of greater than 80 wt % paraffins, a saturates content of greater than 98 wt %, and comprising a series of iso-paraffins having n, n+1, n+2, n+3 and n+4 carbon atoms, wherein n is between 15 and 40, and to a process for operating a diesel engine equipped with a diesel particulate trap, comprising lubricating the diesel engine with the lubricant.

Description

technical field [0001] The present invention relates to the use of lubricants in internal combustion engines. More specifically, the present invention relates to lubricants and fuel packages for internal combustion compression ignition engines equipped with particulate traps. Background technique [0002] In recent decades, internal combustion engines, especially compression ignition engines, for transportation and other energy generating devices have become more widely used. Among the main types of engines used in passenger cars in Europe, in heavy-duty applications worldwide, and in stationary power generation, compression ignition engines (otherwise known as "diesel engines") occupy a dominant position because of their high efficiency. [0003] A diesel engine is an internal combustion engine; more specifically, it is a compression ignition engine in which ignition is achieved by compressing the fuel / air mixture due to the temperature increase due to compression, rather ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L10/00C10L10/02C10M107/02C10L1/08C10N20/02C10N30/06C10N40/25
CPCC10N2220/027C10L10/02C10N2230/04C10M2205/173C10N2220/025C10N2230/50C10N2220/028C10G2400/10C10N2220/022C10M107/02C10N2240/103C10N2240/102C10L10/00C10N2230/54C10N2020/02C10N2020/065C10N2020/069C10N2020/071C10N2030/04C10N2030/50C10N2030/54C10N2040/252C10N2040/253
Inventor H·R·海耶斯D·J·P·皮图德D·J·韦德洛克吴砚云
Owner SHELL INT RES MAATSCHAPPIJ BV
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