掃気ポンプ入口絞りによる二サイクルディーゼル機関の始動の助け

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タイトル別名
  • Starting Aid by Inlet Throttling of Scavenging Pump in Two-Cycle Diesel Engine
  • ソウキポンプ イリグチ シボリ ニ ヨル ニ サイクルディーゼル キカン ノ シドウ ノ タスケ

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抄録

The temperature rise of the inlet-air due to throttling is very useful for starting aid in Diesel engines as described in the previous papers. To the two-cycle Diesel engine with a scavenging pump, the same method has been applied, throttling the inlet side of the pump. The theoretical calculation and the measurement of the scavenge air temperature was carried out for the various thrott1e ratios, which contain thrott1e area, stroke volume, and rotating speed. Results obtained are summarized as follows : (1) The scavenge air temperature rises as the throttle ratio decreases. For the same throttle ratio, the temperature rise becomes large with increasing rotating speed of the pump. (2) In a practical engine, the minimum starting temperature of cooling water was lowered by about 30°C by appling this method, for a certain throttle ratio.

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