SOME MORE LIGHT ON DIESEL COMBUSTION
640446
01/01/1964
- Event
- Content
- This paper discusses the process of combustion, as revealed by high speed cinematography, in a small high speed diesel. Two direct injection types and one prechamber type were examined, and combustion sequences are shown. The phenomena are complex, but the main features are:
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(1)
In small engines much of the fuel strikes the chamber wall and moves along it.
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(2)
Swirl is greater than has hitherto been supposed, squish much less.
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(3)
Most of the flame is of the carbon-rich diffusion type.
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(4)
Soot from very rich mixture is always formed at high loads, but can burn later leaving a clean exhaust.
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(5)
Combustion knock does not seem to be related to the total fuel in the chamber on ignition, but rather to the amount of fast burning mixture present.
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(1)
- Pages
- 27
- Citation
- Alcock, J., and Scott, W., "SOME MORE LIGHT ON DIESEL COMBUSTION," SAE Technical Paper 640446, 1964, https://doi.org/10.4271/640446.