A new spark ignition system for lean mixtures based on a new approach to spark ignition
The current perspective on spark ignition is that of an electrical energy source which is introduced into a combustion chamber to ignite a combustible mixture by electrically breaking down a spark gap and delivering electrical energy (current) to the gap. Typically, the spark gap is made up of two very closely spaced electrodes (of a spark plug) which are exposed to the mixture. Such a perspective is far too limited in that it ignores the electrical plasma nature of the initial flame and the influence that the local electric field and spark discharge have on the growth of the flame. A theory has been developed for including these phenomena in what is an expanded view of spark ignition. An ignition system has been developed which implements the features of this theory. This ignition system is highly effective in igniting the very lean to ultra-lean mixtures necessary to make the lean burn engine practical to provide simplified emissions' control with excellent fuel economy.
- OSTI ID:
- 5493535
- Report Number(s):
- CONF-890240--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330101* -- Internal Combustion Engines-- Spark-Ignition
330700 -- Advanced Propulsion Systems-- Emission Control
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
COMBUSTION CONTROL
CONTROL
DESIGN
ENGINES
HEAT ENGINES
IGNITION QUALITY
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
POLLUTION ABATEMENT
SPARK IGNITION ENGINES