HEAT STRESS ON THE SPARK PLUG
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Date
2018
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
ACAD SCI CZECH REPUBLIC, INST THEORETICAL & APPLIED MECHANICS, PROSECKA 76, PRAGUE 9, 190 00, CZECH REPUBLIC
Abstract
The spark plug with integrated chamber increases the quality of ignition of the homogeneous mixture in the engine cylinder. The discharge of a very small amount of a burning mixture from the chamber (the so-called chamber ignition) leads to a faster development of the initial burning phase, and the subsequent burning of the mixture in the cylinder is then more stable in terms of inter-cycle variability. However, the spark plug housing with the integrated chamber is exposed to a higher thermal load compared to a conventional spark plug, and this must therefore be respected when constructing a spark plug with an integrated chamber. The paper shows the impact of the design of the spark plug with the integrated chamber on the temperature at the bottom of the cellular spark plug housing.
Description
Subject(s)
spark plug, integrated chamber, thermal stress, temperature field