2サイクル機関の掃気流に関する研究 : 第二報 水による二次元掃気流に関する実験的研究 その1

スポンサーリンク

概要

• 論文の詳細を見る

• One of the model engines was completed so as to study scavenging flow of a two-stroke cycle engine as two dimensional flow which is studied visibly, qualitatively and quantitatively. The cylinder of the model is rectangular, and made of colorless and transparent acryl resin. There are several types, of scavenging, but the type in this case is considered one of the most fundamental types concerning two dimensional flow. The method is that the water being put in the cylinder is scavenged by coloured sloution of salt with a certain concentration. "Visibly", in this paper, means 'photographically observed'. "Qualitatively" means comparing scavenging characteristic curve of perfect scavenging and perfect mixing, and moreover observing short circuitting loss and rate of diffusion.' "Quantitatively" means 'considering the volumetric efficiency from the specific gravity and the temperature of the liquid in the cylinder after scavenging action'. For qualitative and quantitative consideration, the previous paper* is available. Each port was opened and shut by a valve without moving a piston. But at the inceptive stage of scavenging action, the turbulence except proper scavenging flow was successfully prevented in and arouud the port. The appearance of flow was successively photographed and observed. The nearer to the exhaust port the scavenging port, the more the short circuitting loss. According to experimental results, it was found that there exists functional relation between the delivery ratio and the volumetric efficiency. In the previous report, either in or k was assumed as 1 in the process of making scavenging characteristic curve, and it was found that this assumption is nearly in accordance with the fact observed in the case that the scavenging port and the exhaust port are separated. The investigation will be continued hereafter, because it is considered very difficult to get the decisive conclusion about scavenging flow only by the present experiments.

• 明治大学の論文

著者

• 岡 剛

  明治大学工学部

• 石原 荘一

  明治大学大学院

• 岡 剛

  明治大学

• 石原 荘一

  明治大学

関連論文

• 二サイクル機関の掃気の流動と効率との関係
• 二サイクル機関の掃気の流動と効率との関係
• 2サイクル機関の掃気流に関する研究 : 第四報 水による二次元掃気流に関する実験的研究 その3
• 2サイクル機関の掃気流に関する研究 : 第三報 (1)水による二次元掃気流に関する実験的研究 その2, (2)水による三次元掃気の一実験
• 2サイクル機関の掃気流に関する研究(科学技術研究所年報第8号)
• 2サイクル機関の掃気流に関する研究 : 第二報 水による二次元掃気流に関する実験的研究 その1
• 2サイクル機関の掃気流に関する研究 : 第一報 水模型実験装置のための予備実験および実験結果を整理するための近似理論掃気曲線
• 内燃機関の吸排気系が機関の諸性能におよぼす影響ならびに機関の性能向上に関する研究(科学技術研究所年報第7号)
• ガソリン噴射機関開発の動向

スポンサーリンク