Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/13232

Title: Un-throttling a direct injection gasoline homogeneous mixture engine with variable valve actuation
Authors: Patel, R.
Ladommatos, N.
Stansfield, Phillip A.
Wigley, Graham
Garner, Colin P.
Pitcher, Graham
Turner, James W.G.
Nuglisch, H.
Helie, J.
Keywords: Early inlet valve closure
Camless engine
Direct injection spark ignition
Variable valve actuation
Exhaust pollutant emissions
Spark ignition
Issue Date: 2010
Publisher: SAGE Publications Ltd. © Institution of Mechanical Engineers
Citation: PATEL, R. ... et al., 2010. Un-throttling a direct injection gasoline homogeneous mixture engine with variable valve actuation. International Journal of Engine Research, 11 (6), pp. 391 - 411.
Abstract: Two direct injection spark ignition (DISI) engines with identical combustion chamber geometries and fuel injection systems were used to investigate fuel economy, exhaust emissions, the in-cylinder flow field, the fuel spray behaviour and combustion characteristics with early inlet valve closure (EIVC) strategies aimed at reducing parasitic induction work owing to throttling. One engine had extensive optical access through a transparent piston crown and transparent cylinder liner, while the other all-metal engine allowed continuous running. Engine running focused at low and intermediate engine loads (∼ 3 and ∼ 6 bar indicated mean effective pressure) and two engine speeds (2000 and 3500 r/min). The results show that the indicated specific fuel consumption (ISFC) could be reduced by almost 6 per cent without significant deterioration in gaseous exhaust pollutant emissions. The results also show that the in-cylinder bulk flow and turbulence and the thermodynamic conditions during combustion are affected significantly by EIVC operation.
Description: Closed access. This article was published in the International Journal of Engine Research [SAGE Publications Ltd. © Institution of Mechanical Engineers] and the definitive version is available at: http://dx.doi.org/10.1243/14680874JER604
Version: Published
DOI: 10.1243/14680874JER604
URI: https://dspace.lboro.ac.uk/2134/13232
Publisher Link: http://dx.doi.org/10.1243/14680874JER604
ISSN: 1468-0874
Appears in Collections:Closed Access (Mechanical, Electrical and Manufacturing Engineering)

Files associated with this item:

File Description SizeFormat
International%20Journal%20of%20Engine%20Research%20-%20Colin%20Garner.pdfPublished version1.81 MBAdobe PDFView/Open


SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.