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

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3 Author(s)
Jiangjian, A. ; Dalian Univ. of Technol. ; Gao Xiyan, B. ; Yao Chunde, C.

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

Published in:

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

Date of Conference:

Aug. 2006