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dc.contributor.authorAttard, William P.en_US
dc.contributor.authorToulson, Elisaen_US
dc.contributor.authorHamori, Ferencen_US
dc.contributor.authorWatson, Harry C.en_US
dc.date.accessioned2014-05-21T19:47:16Z
dc.date.available2014-05-21T19:47:16Z
dc.date.issued2009en_US
dc.identifier.citationAttard, W. P., Toulson, E., Hamori, F., & Watson, H. C. (2009). Combustion system development and analysis of a downsized highly turbocharged PFI small engine. In SETC 2009: 15th Small Engine Technology Conference, Penang, Malaysia.en_US
dc.identifier.urihttp://hdl.handle.net/11343/26756
dc.descriptionCopyright © 2009 SAE Japan and Copyright © 2009 SAE International – 2009 SETC. This paper is posted on this site with permission. As a user of this site, you are permitted to view this paper on-line, and print one copy of this paper at no cost for your use only. This paper may not be copied, distributed or forwarded to others for any use without permission from the copyright holder.en_US
dc.description.abstractThis paper provides some insight into the future direction for developing smaller capacity downsized engines, which will be needed to meet tight CO2 targets and the world’s future powertrain requirements. This paper focuses on the combustion system development and combustion analysis results for a downsized 0.43 liter highly turbocharged engine. The inline two cylinder engine used in experiments was specifically designed and constructed to enable 25 bar BMEP. Producing this specific output is one way forward for future passenger vehicle powertrains, enabling in excess of 50% swept capacity reduction whilst maintaining comparable vehicle performance. Previous experiments and analysis have found that the extent to which larger engines can be downsized while still maintaining equal performance is combustion limited. Hence, small engine combustion is explored over a number of parametric studies, including a range of manifold absolute pressures up to 270 kPa, engine speeds exceeding 10,000 rev/min and compression ratios ranging from 9 to 13. Experimental results indicate that small engine combustion hurdles can be overcome to reliably extend the specific output to 25 bar BMEP. This is believed to be the highest recorded specific output for a non-intercooled small spark ignition PFI engine operating on pump gasoline. However, the boosted combustion effects illustrate that the thermal efficiency is highly dependent on the combustion efficiency, which deteriorates rapidly if uncontrolled combustion, specifically knock in the end-gas region is encountered. However, with this combustion system design strategy, potential drive cycle fuel consumption improvements in excess of 20% are still achievable.en_US
dc.languageengen_US
dc.publisherSAE Japan & SAE Internationalen_US
dc.subjectsmall engine combustionen_US
dc.subjectport fuel injectionen_US
dc.subjectPFIen_US
dc.subjectdownsized engineen_US
dc.subjectturbochargeden_US
dc.subjectcombustionen_US
dc.subjectcompression ratioen_US
dc.titleCombustion system development and analysis of a downsized highly turbocharged PFI small engineen_US
dc.typeConference Paperen_US
melbourne.peerreviewPeer Revieweden_US
melbourne.affiliationThe University of Melbourneen_US
melbourne.affiliation.departmentFaculty of Engineering, Mechanical and Manufacturing Engineeringen_US
melbourne.publication.statusIn Pressen_US
melbourne.source.titleSETC 2009: 15th Small Engine Technology Conferenceen_US
melbourne.source.month3-5 Novemberen_US
melbourne.source.locationconferencePenang, Malaysiaen_US
dc.description.sourcedateconference3-5 Novemberen_US
melbourne.elementsidNA
melbourne.contributor.authorATTARD, WILLIAM
melbourne.contributor.authorTOULSON, ELISA
melbourne.contributor.authorWATSON, HARRY
melbourne.accessrightsOpen Access


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