A Study on Accomplishing Lean Combustion by Multistage Pulse Discharge Ignition Using an Optically Accessible Engine Nihon University

Format:

Conference/Event

Author/Creator:

Abe, Abe, author.

Contributor:

Furusho, Takuma

Iijima, Akira

Iimura, Masaya

Inoue, Takahiro

Takeda, Kotaro

Tamida, Taichiro

Conference Name:

SAE/JSAE Small Engine Technology Conference (2018-11-06 : Dusseldorf, Germany)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2018

Summary:

AbstractLean burn technology has a problem of greater combustion fluctuation due to unstable initial flame formation and slow combustion. It is generally known that generating a flow field in the cylinder is effective for reducing combustion fluctuation and shortening the combustion period. In this study, we investigated the influence of the discharge condition and in-cylinder swirl flow on initial flame formation and ignition performance between conventional spark ignition (SI) and multistage pulse discharge (MSPD) ignition. Visualized photographs were obtained near the spark plug with a high-speed camera in an optically accessible engine. In-cylinder pressure analysis was also performed in order to explicate the combustion phenomena. The results revealed that ignition performance of both SI and MSPD was improved under a swirl flow condition in the cylinder and that combustion fluctuation was effectively reduced. Under the generation of in-cylinder swirl flow, the effect on reducing combustion fluctuation was greater with MSPD than with SI, and more stable combustion was obtained

Notes:

Vendor supplied data

Publisher Number:

2018-32-0007

Access Restriction:

Restricted for use by site license