An Experimental Study on Fuel Behavior During the Cold Start Period of a Direct Injection Spark Ignition Engine Toyota Motor Europe Marketing and Engineering

Format:

Conference/Event

Author/Creator:

Koga, Nobuhiko, author.

Conference Name:

SAE 2001 World Congress (2001-03-05 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2001

Summary:

An experimental study was carried out in order to reduce engine-out HC emissions from a direct injection spark ignition (DISI) engine during the cold start period. The objectives of this study were to investigate the fuel behavior quantified with an analytic method and to propose some practical techniques to reduce the cylinder-wetting fuel volume and engine-out HC emissions.Compared to the MPI (Multi Port Fuel Injection) engine, required fuel volume for DISI engine was reduced during the cold start because intake port wall-wetting was not generated. On the other hand, a large volume of cylinder wetting fuel resulted in engine-out HC emissions. Injection timing, atomization and vaporization of injected fuel affected the cylinder-wetting fuel volume. Above all, Injection of the heated fuel provided good results.In summary, engine-out HC emissions from DISI engine was reduced compared to that of MPI engine during the cold-start period

Notes:

Vendor supplied data

Publisher Number:

2001-01-0969

Access Restriction:

Restricted for use by site license