On the Transmission of the Blow-Down Energy in the Exhaust System of a Diesel Engine
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概要
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For the improvement of the performance of a turbocharged Diesel engine with a pulse system, the utilization of the blow-down energy is most essential. The present authors have carried out the experiment on the transmission of the blow-down energy with an air model simulating the exhaust system of an actual engine. By measuring the kinetic energy of the air ejected from the equivalent nozzle at the pipe end, several factors affecting the energy transmission-pipe length, pipe diameter, area-ratio of the nozzle to the exhaust pipe and exhaust pressure-were found out. Further the theoretical calculations were performed by means of the characteristic method. The resulting values agree almost exactly with the experimental ones, when the friction loss in the exhaust pipe is taken into consideration.
- 一般社団法人日本機械学会の論文
著者
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Nagao Fujio
Department Of Mechanical Engineering Kyoto University
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Shimamoto Yuzuru
Post-graduate Course Kyoto University
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