Cylinder to cylinder and cycle to cycle variations in a six cylinder lean burn natural gas engine

Patrik Einewall*, Bengt Johansson

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

9 Scopus citations

Abstract

The cylinder to cylinder and cycle to cycle variations were measured in a production type Volvo natural gas engine. Cylinder pressure was measured in all six cylinders. Emission measurements were performed individually after all cylinders, and commonly after the turbocharger. Measurements (ECE R49 13-mode) were performed with different spark gap and two different locations for fuel injection, one before the throttle and one before the turbocharger. Heat-release and lambda calculations show substantial cylinder to cylinder variations, due to lambda variations between the cylinders. The slow burn combustion chamber, with low turbulence, results in high cycle to cycle variations (> 100% COV imep) for some of the load cases.

Original languageEnglish (US)
DOIs
StatePublished - Dec 1 2000
EventInternational Spring Fuels and Lubricants Meeting and Exposition - Paris, France
Duration: Jun 19 2000Jun 22 2000

Other

OtherInternational Spring Fuels and Lubricants Meeting and Exposition
CountryFrance
CityParis
Period06/19/0006/22/00

ASJC Scopus subject areas

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

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