Effects of injection timing on performance and droplet characteristics of a sixteen-valve four cylinder engine

Chappuis, S.; Cousyn, B.; Posylkin, M.; Vannobel, F.; Whitelaw, J. H.

doi:10.1007/s003480050056

Cited by 9 publications

(1 citation statement)

References 15 publications

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“…Chappuis et al [9] have showed that in the closedvalve injection strategy the fuel vapour enters the cylinder first, followed by a lean air jet flow. A similar vapour distribution behaviour can be observed here, with early crank angle LIF images providing evidence of equivalence ratios as high as 5 (air±fuel ratios of 3:1), followed by a leaner air jet flow giving rise to subsequent global in-cylinder fuel=air mixing.…”

Section: Closed-valve Injectionmentioning

confidence: 99%

Mixture preparation strategies in an optical four-valve port-injected gasoline engine

Gold

Arcoumanis

Whitelaw

et al. 2000

International Journal of Engine Research

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The mixture formation in a single-cylinder, optical port-injected gasoline engine was investigated for both closed- and open-valve injection strategies with a combination of phase Doppler anemometry, laser-induced fluorescence and Mie scattering and correlated with combustion development and exhaust emissions. Detailed crank angle resolved data of the flow and mixture distribution during induction and compression have revealed the advantages of early open-valve injection, in terms of extending the lean limit and maintaining satisfactory engine performance and HC/NOx emissions, achieved through charge stratification in the vicinity of the spark plug at the time of ignition.

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Section: Closed-valve Injectionmentioning

confidence: 99%