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Proceedings Paper

High Speed Combustion Photography With Endoscopes In Actual Diesel Engines A New Approach
Author(s): Peter Werlberger
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Paper Abstract

The principle of the new approach taken consists in viewing the fuel injection and combustion process through specially designed endoscopes. Compared to conventional film techniques, the endoscope as photography system requires very small windows fitted into the cylinder head of the engine, thus causing minimal interference with the combustion process. The windows are made of fused silica to withstand the high gas temperature and pressure inside the combustion chamber of a diesel engine. The outcoming image from the endoscope is transmitted to the camera through several rigid optical relay systems, interconnected with rotating optical joints. A flash bulb located behind a second window is used to illuminate the non-luminous process of fuel spray formation during the ignition delay period.

Paper Details

Date Published: 1 February 1985
PDF: 6 pages
Proc. SPIE 0491, 16th Intl Congress on High Speed Photography and Photonics, (1 February 1985); doi: 10.1117/12.967932
Show Author Affiliations
Peter Werlberger, AVL Prof. List Ges.m.h.H. (Austria)

Published in SPIE Proceedings Vol. 0491:
16th Intl Congress on High Speed Photography and Photonics
Michel L. Andre; Manfred Hugenschmidt, Editor(s)

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