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Application of Image Converter Camera to Measure Flame Propagation in S.I. Engine
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English
Abstract
A combustion flame visualization system, for use as an engine diagnostics tool, was developed in order to evaluate combustion chamber shapes in the development stage of mass-produced spark ignition (S.I.) engines. The system consists of an image converter camera and a computer-aided image processing system. The system is capable of high speed photography (10,000 fps) at low intensity light (1,000 cd/m2), and of real-time display of the raw images of combustion flames.
By using this system, flame structure estimated from the brightness level on a photograph and direction of flame propagation in a mass-produced 4-valve engine were measured. It was observed that the difference in the structure and the propagation of the flame in the cases of 4-valve and quasi-2-valve combustion chambers, which had the same in the pressure diagram, were detected. The quasi-2-valve configuration was adopted in order to improve swirl intensity.
Authors
Citation
Nakamura, A., Ishii, K., and Sasaki, T., "Application of Image Converter Camera to Measure Flame Propagation in S.I. Engine," SAE Technical Paper 890322, 1989, https://doi.org/10.4271/890322.Also In
References
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