Effects of intake and exhaust valve timing on combustion and emission characteristics of lean-burn direct-injection LPG engine
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, C. | - |
dc.contributor.author | Kim, T. | - |
dc.contributor.author | Cho, S. | - |
dc.contributor.author | Oh, S. | - |
dc.date.available | 2020-02-28T10:45:43Z | - |
dc.date.created | 2020-02-12 | - |
dc.date.issued | 2015 | - |
dc.identifier.issn | 1226-4881 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/10972 | - |
dc.description.abstract | In order to meet the enforced emission regulations and reduce fuel consumption, various new technologies are employed in engines. The problem of NOx emissions under a lean mixture condition should be solved, because a lean-burn direct-injection engine can realize stable lean combustion with a stratified mixture, which results in improvements in fuel economy and emissions. This study investigated the effects of intake and exhaust valve timing changes on the performance and emission characteristics of a lean-burn LPG direct-injection engine. Under a partial-load operating condition without throttling, an increase in the intake valve opening led to an increase in NOx emissions due to an increase in the amount of excess air. The fuel consumption deteriorated with an increase in the exhaust valve opening due to a decrease in the expansion work and an increase in the pumping loss. © 2015 The Korean Society of Mechanical Engineers. | - |
dc.language | 한국어 | - |
dc.language.iso | ko | - |
dc.publisher | Korean Society of Mechanical Engineers | - |
dc.relation.isPartOf | Transactions of the Korean Society of Mechanical Engineers, B | - |
dc.subject | Air intakes | - |
dc.subject | Combustion | - |
dc.subject | Engines | - |
dc.subject | Fuel consumption | - |
dc.subject | Fuel economy | - |
dc.subject | Fuels | - |
dc.subject | Intake valves | - |
dc.subject | Mixtures | - |
dc.subject | Nitrogen oxides | - |
dc.subject | Direct injection engines | - |
dc.subject | Emission characteristics | - |
dc.subject | Excess air ratios | - |
dc.subject | Residual gas | - |
dc.subject | Throttling | - |
dc.subject | Valve timing | - |
dc.subject | Direct injection | - |
dc.title | Effects of intake and exhaust valve timing on combustion and emission characteristics of lean-burn direct-injection LPG engine | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.doi | 10.3795/KSME-B.2015.39.1.045 | - |
dc.identifier.bibliographicCitation | Transactions of the Korean Society of Mechanical Engineers, B, v.39, no.1, pp.45 - 51 | - |
dc.identifier.kciid | ART001948045 | - |
dc.identifier.scopusid | 2-s2.0-84938395165 | - |
dc.citation.endPage | 51 | - |
dc.citation.startPage | 45 | - |
dc.citation.title | Transactions of the Korean Society of Mechanical Engineers, B | - |
dc.citation.volume | 39 | - |
dc.citation.number | 1 | - |
dc.contributor.affiliatedAuthor | Cho, S. | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Emission characteristics | - |
dc.subject.keywordAuthor | Excess air ratio | - |
dc.subject.keywordAuthor | Fuel consumption | - |
dc.subject.keywordAuthor | Lean-burn direct injection engine | - |
dc.subject.keywordAuthor | Residual gas | - |
dc.subject.keywordAuthor | Throttling | - |
dc.subject.keywordAuthor | Valve timing | - |
dc.subject.keywordPlus | Air intakes | - |
dc.subject.keywordPlus | Combustion | - |
dc.subject.keywordPlus | Engines | - |
dc.subject.keywordPlus | Fuel consumption | - |
dc.subject.keywordPlus | Fuel economy | - |
dc.subject.keywordPlus | Fuels | - |
dc.subject.keywordPlus | Intake valves | - |
dc.subject.keywordPlus | Mixtures | - |
dc.subject.keywordPlus | Nitrogen oxides | - |
dc.subject.keywordPlus | Direct injection engines | - |
dc.subject.keywordPlus | Emission characteristics | - |
dc.subject.keywordPlus | Excess air ratios | - |
dc.subject.keywordPlus | Residual gas | - |
dc.subject.keywordPlus | Throttling | - |
dc.subject.keywordPlus | Valve timing | - |
dc.subject.keywordPlus | Direct injection | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
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