Gas engine - Gas engine

…The former is a method in which the working fluid is heated from the outside through a heat transfer wall such as a boiler, while the latter is a method in which the mixture of air and fuel, which is the working fluid, is ignited and burned to heat it. Also, a motor in which the working fluid changes between liquid and gas phases during the cycle is called a steam motor, and a motor in which the working fluid is only in gas phase is called a gas motor. Based on the operating method for converting the heat of the working fluid into mechanical work, they are classified into volumetric and velocity types. …

*Some of the terminology that refers to "gas engine" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…前者は作動流体をボイラーなどの伝熱壁を介して外部から加熱する方式，後者は作動流体である空気と燃料の混合物を点火･燃焼させて加熱する方式である。また作動流体がサイクルの途中に液相と気相の間を変化するものを蒸気原動機，気相のみの場合を気体原動機という。作動流体のもっている熱を機械仕事に変換する作動方式からは，容積形と速度形に分類される。…

※「気体原動機」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報