Miller-PCCI combustion in an HSDI diesel engine with VVT

Yutaka Murata, Jin Kusaka, Yasuhiro Daisho, Daisuke Kawano, Hisakazu Suzuki, Hajime Ishii, Yuichi Goto

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

A variable valve timing (VVT) mechanism has been applied in a high-speed direct injection (HSDI) diesel engine. The effective compression ratio(εeff) was lowered by means of late intake valve closing (LIVC), while keeping the expansion ratio constant. Premixed charge compression ignition (PCCI) combustion, adopting the Miller-cycle, was experimentally realized and numerically analyzed. Significant improvements of NOx and soot emissions were achieved for a wide range of engine speeds and loads, frequently used in a transient mode test. The operating range of the Miller-PCCI combustion has been expanded up to an IMEP of 1.30 MPa.

Original languageEnglish
Pages (from-to)444-456
Number of pages13
JournalSAE International Journal of Engines
Volume1
Issue number1
DOIs
Publication statusPublished - 2009 Apr 1

ASJC Scopus subject areas

  • Automotive Engineering
  • Fuel Technology

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