Spark to Piston - A Concept for Combustion Stability Enhancement on a High-Dilution SI Engine

Paper #:
  • 1999-01-3508

Published:
  • 1999-10-25
Citation:
Reinmann, R. and Olofsson, E., "Spark to Piston - A Concept for Combustion Stability Enhancement on a High-Dilution SI Engine," SAE Technical Paper 1999-01-3508, 1999, https://doi.org/10.4271/1999-01-3508.
Pages:
11
Abstract:
This paper presents a study of the Spark To Piston (STP) concept, engaged in a modern Spark Ignition (SI) 4-valve per cylinder four stroke engine. The combustion stabilization effect from this concept has been utilized in order to increase the engine tolerance to dilution of the fresh air-fuel mixture. It is shown that this tolerance is significantly improved by the STP concept, especially if combined with a high-energy ignition system. Inherent with this improved tolerance comes the ability to reduce fuel consumption and emissions of NOx in a considerable amount. Consequently, STP must therefore be considered a competitive future technique despite its non-conventional approach.
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