An Experimental Study on Fuel Injection System and Emission of a Small GDI Engine

Author

Jiangjian, A. ; Xiyan, Gao ; Chunde, Yao

Author_Institution

Dalian Univ. of Technol.

fYear

2006

fDate

Aug. 2006

Firstpage

1

Lastpage

6

Abstract

A newly developed "common-rail-valve-nozzle" hole type injector for a small direct injection spark ignition engine (125ml) is introduced in this paper. The injection parameters were adjusted by a high speed solenoid valve (HSV) numerically controlled. Based on testing results, the influences of air-fuel ratio and injection timing on performance of GDI engine are analyzed. Results show that the lean-burn limit can be extended and the fuel economy and emissions can be improved by using the combination of injection quantity with injection timing adjustment

Keywords

fuel economy; fuel systems; internal combustion engines; numerical control; solenoids; GDI engine; air-fuel ratio; common-rail-valve-nozzle hole type injector; fuel economy; fuel injection system; high speed solenoid valve; injection parameters; injection quantity; injection spark ignition engine; injection timing adjustment; lean-burn limit; Engines; Fuels; Ignition; Petroleum; Rails; Solenoids; Sparks; Testing; Timing; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronic and Embedded Systems and Applications, Proceedings of the 2nd IEEE/ASME International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-9721-5

Type

conf

DOI

10.1109/MESA.2006.296988

Filename

4077815