Study on Compound Injection Technology in Gasoline Engines

DOI

10.2991/lemcs-15.2015.309How to use a DOI?

Keywords

Gasoline engine; Port fuel injection (PFI); Gasoline direct injection (GDI); Compound injection (PFDI); Emission

Abstract

This paper described the compound injection (PFDI) technology that combines the port fuel injection (PFI) and gasoline direct injection (GDI) system, and optimized the injection parameters by experiments to meet different requirements for mixture concentration at different conditions to improve power performance and fuel economy, and reduce emissions. The two typical gasoline engine fuel systems, PFI and GDI, were studied and their power, fuel economy performance and emissions were compared by experiments. The experiments show that the two systems have different adapting conditions and the particulate emission is the most drawbacks for the GDI engine. The advantages and current application of the PFDI system were studied and the future application strategy was discussed. The results indicate that the PFDI system can fully utilize the advantages of PFI and GDI and achieve lower emissions and better fuel economy, prominently reduce the particulate emission. The PFDI system has been implemented by several OEM to meet the Euro 6+ emission standards.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Cuiling Song
AU  - Zijun An
PY  - 2015/07
DA  - 2015/07
TI  - Study on Compound Injection Technology in Gasoline Engines
BT  - Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science
PB  - Atlantis Press
SP  - 1551
EP  - 1556
SN  - 1951-6851
UR  - https://doi.org/10.2991/lemcs-15.2015.309
DO  - 10.2991/lemcs-15.2015.309
ID  - Song2015/07
ER  -