A study on the direct control of the start of homogeneous charge compression ignition combustion by pulsed flame jet with rapid compression expansion machine

Author:

Murase Eiichi1,Moriue Osamu1,Hashimoto Hideki1,Nakashima Fumihiro1,Komai Yoshinobu1

Affiliation:

1. Department of Mechanical Engineering, Faculty of Engineering, Kyushu University, Fukuoka, Japan

Abstract

Aiming at direct ignition-timing control of homogeneous charge compression ignition in low-load conditions, pulsed flame jet, which is the jet of burning gas issuing from a small cavity facing a combustion chamber, was utilized. The characteristics of homogeneous charge compression ignition combustion initiated by pulsed flame jet were investigated using rapid compression expansion machine, which realizes single compression and expansion strokes and thus the measurement of indicated work. Higher indicated mean effective pressure was obtained using pulsed flame jet without increasing NOx emission drastically, and it was shown that pulsed flame jet has potential to control the onset of homogeneous charge compression ignition combustion appropriately. The validity of pulsed flame jet utilization was shown through pressure and NOx measurements.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Ocean Engineering,Aerospace Engineering,Automotive Engineering

Reference11 articles.

1. Simultaneous Reduction of NOx and Soot in Diesel Engines Using a New Mixture Preparation Method.

2. Furutani M, Ohta Y, Kono M, An ultra-lean premixed compression-ignition engine concept and its characteristics. In: The 4th international symposium on diagnostics and modeling of combustion in internal combustion engines, COMODIA 1998, Kyoto, Japan, 20–23 July 1998. Japan: The Japan Society of Mechanical Engineers. pp.173–177.

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