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Study on FAI Two-Stroke DISI Engine

Cai Xiao-lin

Open publisher page 1 citations

Abstract

This paper introduces the research of the FAI (Free Armature Injection) two-stroke DISI engine modified from a carburetor two-stroke gasoline engine AX-100 in details.A combustion chamber meeting to the fuel direct injection technology was developed and a large amount of raw data and MAP of the electronic control parameters were obtained.Moreover,the comparisons in power,fuel consumption and emission were conducted.The results showed that the FAI direct injection technology could be successfully applied to the two-stroke engine,eliminating short-circuiting phenomenon and improving the scavenge efficiency.Fuel economy and exhaust emissions over the whole operating range were improved greatly.

About this research paper

What this paper is about

This paper introduces the research of the FAI (Free Armature Injection) two-stroke DISI engine modified from a carburetor two-stroke gasoline engine AX-100 in details.A combustion chamber meeting to the fuel direct injection technology was developed and a large amount of raw data and MAP of the electronic control parameters were obtained.Moreover,the comparisons in power,fuel consumption and emission were conducted.The results showed that the FAI direct injection technology could be successfully applied to the two-stroke engine,eliminating short-circuiting phenomenon and improving the scavenge efficiency.Fuel economy and exhaust emissions over the whole operating range were improved greatly.

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Available abstract

This paper introduces the research of the FAI (Free Armature Injection) two-stroke DISI engine modified from a carburetor two-stroke gasoline engine AX-100 in details.A combustion chamber meeting to the fuel direct injection technology was developed and a large amount of raw data and MAP of the electronic control parameters were obtained.Moreover,the comparisons in power,fuel consumption and emission were conducted.The results showed that the FAI direct injection technology could be successfully applied to the two-stroke engine,eliminating short-circuiting phenomenon and improving the scavenge efficiency.Fuel economy and exhaust emissions over the whole operating range were improved greatly.

Key concepts: Two-stroke engine, Automotive engineering, Fuel efficiency, Petrol engine, Internal combustion engine, Combustion, Stroke (engine), Gasoline direct injection

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