Oil Diffusion Pump - ABRAKAKUSAN PUMP

Japanese: 油拡散ポンプ - アブラカクサンポンプ
Oil Diffusion Pump - ABRAKAKUSAN PUMP

This refers to a diffusion pump that uses oil as the working fluid. The main characteristics required of pump oil are low evaporation pressure at room temperature, a large heat of evaporation, and thermal and chemical stability. The typical structure of an oil diffusion pump is shown in the figure.

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

Japanese:

拡散ポンプの作動液に油を用いたものをいう.ポンプ油として要求される特性は,まず常温における蒸発圧が低いこと,蒸発熱が大きいこと,および熱的,化学的に安定であることがおもなものである.油拡散ポンプの代表的な構造を図に示す.

出典 森北出版「化学辞典(第2版)」化学辞典 第2版について 情報

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