The influence of a late in-cylinder air injection on in-cylinder flow measured with Particle Image Velocimetry (PIV)

Martin Ekenberg; Raymond Reinmann; Eric Olofsson; Bertrand Gillet; Bengt Johansson

doi:10.4271/2001-01-3492

The influence of a late in-cylinder air injection on in-cylinder flow measured with Particle Image Velocimetry (PIV)

Martin Ekenberg^*, Raymond Reinmann, Eric Olofsson, Bertrand Gillet, Bengt Johansson

^*Corresponding author for this work

Physical Sciences and Engineering

Research output: Contribution to conference › Paper › peer-review

2 Scopus citations

Abstract

During development of an air assisted, direct injection combustion system, it was found that an air pulse during the late part of compression stroke significantly shortened the combustion duration and extended the lean limits of the engine. The effect of an injection of pure air through an air assist direct injector was studied with Particle Image Velocimetry, PIV. Results showed that an air pulse during the compression stroke significantly speeded up in-cylinder velocities, which also was showed in the heat release analysis. A system to use low density seeding particles was developed and is presented in the paper.

Original language	English (US)
DOIs	https://doi.org/10.4271/2001-01-3492
State	Published - Dec 1 2001
Event	International Fall Fuels and Lubricants Meeting and Exposition - San Antonio, TX, United States Duration: Sep 24 2001 → Sep 27 2001

Other

Other	International Fall Fuels and Lubricants Meeting and Exposition
Country/Territory	United States
City	San Antonio, TX
Period	09/24/01 → 09/27/01

ASJC Scopus subject areas

Automotive Engineering
Safety, Risk, Reliability and Quality
Pollution
Industrial and Manufacturing Engineering

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10.4271/2001-01-3492

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title = "The influence of a late in-cylinder air injection on in-cylinder flow measured with Particle Image Velocimetry (PIV)",

abstract = "During development of an air assisted, direct injection combustion system, it was found that an air pulse during the late part of compression stroke significantly shortened the combustion duration and extended the lean limits of the engine. The effect of an injection of pure air through an air assist direct injector was studied with Particle Image Velocimetry, PIV. Results showed that an air pulse during the compression stroke significantly speeded up in-cylinder velocities, which also was showed in the heat release analysis. A system to use low density seeding particles was developed and is presented in the paper.",

author = "Martin Ekenberg and Raymond Reinmann and Eric Olofsson and Bertrand Gillet and Bengt Johansson",

year = "2001",

month = dec,

day = "1",

doi = "10.4271/2001-01-3492",

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note = "International Fall Fuels and Lubricants Meeting and Exposition ; Conference date: 24-09-2001 Through 27-09-2001",

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T1 - The influence of a late in-cylinder air injection on in-cylinder flow measured with Particle Image Velocimetry (PIV)

AU - Ekenberg, Martin

AU - Reinmann, Raymond

AU - Olofsson, Eric

AU - Gillet, Bertrand

AU - Johansson, Bengt

PY - 2001/12/1

Y1 - 2001/12/1

N2 - During development of an air assisted, direct injection combustion system, it was found that an air pulse during the late part of compression stroke significantly shortened the combustion duration and extended the lean limits of the engine. The effect of an injection of pure air through an air assist direct injector was studied with Particle Image Velocimetry, PIV. Results showed that an air pulse during the compression stroke significantly speeded up in-cylinder velocities, which also was showed in the heat release analysis. A system to use low density seeding particles was developed and is presented in the paper.

AB - During development of an air assisted, direct injection combustion system, it was found that an air pulse during the late part of compression stroke significantly shortened the combustion duration and extended the lean limits of the engine. The effect of an injection of pure air through an air assist direct injector was studied with Particle Image Velocimetry, PIV. Results showed that an air pulse during the compression stroke significantly speeded up in-cylinder velocities, which also was showed in the heat release analysis. A system to use low density seeding particles was developed and is presented in the paper.

UR - http://www.scopus.com/inward/record.url?scp=84877567022&partnerID=8YFLogxK

U2 - 10.4271/2001-01-3492

DO - 10.4271/2001-01-3492

M3 - Paper

T2 - International Fall Fuels and Lubricants Meeting and Exposition

Y2 - 24 September 2001 through 27 September 2001

ER -

The influence of a late in-cylinder air injection on in-cylinder flow measured with Particle Image Velocimetry (PIV)

Abstract

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