Effects of Octane Number on Stratified Charge Combustion in a Direct Injection Gasoline Engine

Fukui, H.; Komoriya, Haruo; Shimizu, Toshio

doi:10.4271/2001-01-1964

Cited by 8 publications

(2 citation statements)

References 8 publications

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“…Unique combustion characteristics concerning octane number were found on stratified charge combustion. The increase of indicated thermal efficiency and decrease of unburned hydrocarbon were observed as octane number decreased [7] .…”

Section: Stratified Intake Airmentioning

confidence: 93%

Review of Stratified Charge Research in Oxygen-Enriched and Nitrogen-Enriched Combustion

Jin

Gao

et al. 2012

AMR

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This paper discusses combustion and emissions of internal combustion engine when oxygen-enriched combustion air and nitrogen-enriched combustion air are used. Nitrogen-enriched combustion can reduce the formation of NOx by inhibiting the combustion temperature in cylinder. Engine combustion is mainly subject to components of oxygen and nitrogen in the intake, the former combustion and the latter flame retardant. So we can control the two components during combustion process to re-engineering their component in the intake to the implementation control the combustion and emissions.

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Section: Stratified Intake Airmentioning

confidence: 93%

Review of Stratified Charge Research in Oxygen-Enriched and Nitrogen-Enriched Combustion

Jin

Gao

et al. 2012

AMR

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“…[3]Especially in the cold start process, the effect is more obvious, fuel evaporation too slow may lead to starting abnormal or even to fail. Most of the fuel evaporation model consider fuel for single component, but the actual fuel such as gasoline or diesel have hundreds of components, which is a mixture of various volatile components.…”

Section: Multi-component Evaporation Modelmentioning

confidence: 99%

Experimental Research on the Effect of Gasoline Quality on Vehicle Emission and OBD System

Wu¹

2016

Proceedings of the 2016 4th International Conference on Machinery, Materials and Computing Technology

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Abstract. With the surging emissions standards for cars and strict and the application of advanced emission control technology, the influence of fuel quality on vehicle emissions is increasingly important. As a result, automobile, petrochemical industry in the United States, Japan, Europe and other countries and regions have cooperated on the research on the car, engine and fuel system. Key technical indicators of fuel limit corresponding to gradual enhancement of the vehicle emission regulations are put forward. With the issue of country's III and IV phase vehicle emission standards, fuel specifications that meet the discharge standard should be established. Effect of gas composition and properties on vehicle performance and emissionsGasoline is mainly composed of three types of hydrocarbons, namely olefin, alkanes and aromatic hydrocarbons. Because gasoline itself contains a certain amount of sulfur in crude oil, sulfur generally can't be completely removed during the gasoline refining, so it will contain a certain amount of sulfur in gasoline. Effect of the sulfur content in gasoline on vehicle emissionsThe sulfur in the gasoline can obviously reduce the efficiency of the catalysts in the catalytic converters. Sulfur can also adverse effects on the high temperature exhaust gas oxygen sensor.[1] To reduce sulfur content in fuel oil can directly reduce the emissions of vehicles with catalytic conversion device significantly. Impact of the sulfur on the vehicle emissions of pollutants has been researched with extensive experiments. Effect of the benzene content in gasoline on vehicle emissionsBenzene naturally occur in the crude oil composition, it is also catalytic reforming products, a high octane number gasoline components. It is also known a carcinogen.Benzene content controlling of gasoline is the most direct limit from the evaporate emission and effective method to vent of benzene emissions. Studies have shown that the benzene content in gasoline with exhaust gas of benzene emissions is produced by linear relationship, benzene emissions also have very high contribution to gasoline aromatic compounds. Many countries law makers have realized controlling benzene content in gasoline is an effective method to reduce benzene harm to mankind. Effects of gasoline volatile on vehicleReasonable volatile is critical for gasoline engine work in both performance and emissions. Gasoline volatile can be determined by vapor pressure and distillation range.Gasoline vapor pressure should be controlled according to the season, make different temperatures have different volatile. At high temperature, it is necessary to control the vapor pressure strictly to avoid problems at high temperature, such as gas resistance or canister overload. Control of high temperature vapor pressure is also important to reduce evaporate emission. To warm machine starting smoothly and get good machine performance, a high vapor pressure is needed at low temperature. Proper reduce of the vapor pressure of gasoline can reduce the HC emissions and CO ...

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Effects of Fuel Properties on the Combustion and Emission of Direct-Injection Gasoline Engine

Hashimoto¹,

Inaba²,

Akasaka³

2000

SAE Technical Paper Series

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Effects of Octane Number on Stratified Charge Combustion in a Direct Injection Gasoline Engine

Cited by 8 publications

References 8 publications

Review of Stratified Charge Research in Oxygen-Enriched and Nitrogen-Enriched Combustion

Review of Stratified Charge Research in Oxygen-Enriched and Nitrogen-Enriched Combustion

Experimental Research on the Effect of Gasoline Quality on Vehicle Emission and OBD System

Effects of Fuel Properties on the Combustion and Emission of Direct-Injection Gasoline Engine

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