予燃焼室式ディーゼル機関の性能向上

概要

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The Performance of a pre-combustion Diesel engine depends to a great extent upon the combustion process taking place in the main chamber, which is determined by the throat area, volume ratio of pre-combustion chamber and ejecting directions. The results obtained in investigating the combustion process in the model of a pre-combustion chamber as well as in the actual engine, have shown that gas stream and ignition location in a pre-combustion chamber have a large effect on the combustion in the main chamber. We have come to a conclusion that improvement on the performance of the Diesel engine is effected by the conditions that the fuel should be ejected for a shortest period so that the main bulk of fuel may be transferred with a high keinetic energy into the main chamber. This state can be materialized by concentration of fuel near the throat and also by causing ignition location in the upper part of a pre-combustion chamber.
一般社団法人日本機械学会の論文
1957-08-25