1.9-liter four-cylinder HCCI engine operation with exhaust gas recirculation

Michael Y. Au*, James W. Girard, Robert Dibble, Daniel Flowers, Salvador M. Aceves, Joel Martinez-Frias, Ray Smith, Christian Seibel, Ulrich Maas

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

35 Scopus citations


We present the effect of EGR, at a set fuel flow rate and intake temperature, on the operating parameters of timing of combustion, duration of combustion, power output, thermal efficiency, and NOx emission; which is remarkably low. We find that addition of EGR at constant inlet temperature and constant fuel flow rate has little effect on HCCI parameter of start of combustion (SOC). However, burn duration is highly dependent on the amount of EGR inducted. The experimental setup at UC Berkeley uses a 1.9-liter 4-cylinder diesel engine with a compression ratio of 18.8:1 (offered on a 1995 VW Passat TDI). The engine was converted to run in HCCI mode by addition of an 18kW air pre-heater installed in the intake system. Pressure traces were obtained using four water-cooled quartz pressure transducers, which replaced the Diesel fuel injectors. Gaseous fuel (propane or butane) flowed steadily into the intake manifold.

Original languageEnglish (US)
Title of host publicationInternational Spring Fuels and Lubricants Meeting and Exhibition
StatePublished - 2001
Externally publishedYes
EventInternational Spring Fuels and Lubricants Meeting and Exhibition - Orlando, FL, United States
Duration: May 7 2001May 9 2001


OtherInternational Spring Fuels and Lubricants Meeting and Exhibition
Country/TerritoryUnited States
CityOrlando, FL

ASJC Scopus subject areas

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


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