This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Miller-PCCI Combustion in an HSDI Diesel Engine with VVT

Journal Article
2008-01-0644
ISSN: 1946-3936, e-ISSN: 1946-3944
Published April 14, 2008 by SAE International in United States
Miller-PCCI Combustion in an HSDI Diesel Engine with VVT
Sector:
Citation: Murata, Y., Kusaka, J., Daisho, Y., Kawano, D. et al., "Miller-PCCI Combustion in an HSDI Diesel Engine with VVT," SAE Int. J. Engines 1(1):444-456, 2009, https://doi.org/10.4271/2008-01-0644.
Language: English

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.