EXPERIMENTAL STUDY OF A LOW-PRESSURE DIRECT-INJECTION STRATIFIED-CHARGE ENGINE

The lean-burn system is a means of bettering the thermal efficiency of gasoline engines. The extension of lean misfire limit by means of charge stratification can be considered as a potent method to materialize the lean-burn. Two types of low-pressure fuel delivery systems were fabricated in the study and included in the report in order to investigate whether they could stratify the air-fuel mixture using in-cylinder visualization coupled with a transparent cylinder engine. The combination of in-cylinder swirl and low-pressure direct injection enabled in-cylinder axial stratification, and consequently, the lean misfire limit was significanttly extended up to 40:1 of air/fuel ratio or more. Some of the problems to be resolved, including the increased emission of hydrocarbons, were also indicated.

  • Supplemental Notes:
    • Included in Mazda Technical Review, n9 p112-120 1991.
  • Corporate Authors:

    Mazda, Incorporated

    Merchandize Development Center
    Hiroshima,   Japan  000
  • Authors:
    • MISUMI, M
  • Publication Date: 1991

Language

  • Japanese

Media Info

  • Pagination: 11 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00628212
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 3 1993 12:00AM