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Direct Fuel Injection: Piaggio Approach to Small 2T SI Engines
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English
Abstract
Following general considerations about the advantages of two stroke S.I. engines equipped with direct fuel injection systems, especially for light vehicle applications, two solutions, developed for mass production, are presented.
The first one deals with a mechanical high pressure D.I. system characterized by an essential fuel delivery control.
The second one is concerned with an electronic low pressure semi - D.I. in view of a reduction of the involved costs.
While the mechanical solution achieves a dramatic reduction in HC emission and fuel consumption but with high costs, the electronic one still appears a good compromise between improvements and costs when very fast injectors are industrially available.
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Citation
Nuti, M., "Direct Fuel Injection: Piaggio Approach to Small 2T SI Engines," SAE Technical Paper 880172, 1988, https://doi.org/10.4271/880172.Also In
References
- MIGEOT J.C. “RENDEMENT SU MOTEUR DEUX TEMPS AUX CHARGES PARTIELLES” PETROLE ET TECHNIQUES N° 282-1981
- KATO S. “SUZUKI VARIABLE CYLINDER, TWO-STROKE ENGINE (SSC SYSTEM)” JSAE REVIEW NOVEMBER 1982
- NUTI M. “DIRECT FUEL INJECTION: AN APPORTUNITY FOR TWO-STROKE SI ENGINES IN ROAD VEHICLE USE” SAE PAPER 860170
- NUTI M. “DIRECT FUEL INJECTION FOR TWO-STROKE SI ENGINES EXHAUST EMISSIONS ABATEMENT” 2 GRAZER ZWEIRADTAGUNG 17-18 NOVEMBER 1986
- VIEILLEDENT E. “LOW PRESSURE ELECTRONIC FUEL INJECTION SYSTEM FOR TWO-STROKE ENGINES” SAE PAPER 780767
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