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本文介绍了TACOM和Cummins绝热发动机规划的目的、进展及未来的计划。绝热发动机的概念是指用高温材料使柴油机的燃烧室隔热,从而可以在接近绝热运行的条件下进行高温运转。由于采用了涡轮机械和高温材料,通常在冷却系统和废气中损失的热能现在可以转换有用的功率,因此,这一方案增加了功率和提高了效率。此类柴油机试验已反复表明,绝热机是世界上最省油的一种发动机,多缸机上代表性的性能水平已达到功率为450马力下的0.285磅/马力小时(热效率为48%)。一台早期研制的绝热机已安装在五吨军用卡车上,并且顺利地完成了初期的车辆试验。第二代功率范围为600～750马力的绝热机设计及许多预研项目正在进行中。低摩擦绝热机机型的工作在继续进行中。
This article describes the purpose, progress and future plans for TACOM and Cummins adiabatic engine planning. The concept of an adiabatic engine means that the combustion chamber of a diesel engine is insulated with a high-temperature material so that the operation can be performed at a temperature close to adiabatic operation. Due to the use of turbomachinery and high-temperature materials, the heat lost in the cooling system and the exhaust gas, which are usually lost, can now convert useful power, thus increasing power and increasing efficiency. Such diesel tests have repeatedly shown that the adiabatic machine is one of the most fuel-efficient engines in the world and that the typical level of performance on a multi-cylinder machine has reached 0.285 lbs / hp at 48 hp (48% thermal efficiency). An early adiabatic machine was installed on a five-ton military truck and the initial vehicle test was successfully completed. The second generation of insulation machine design with power range 600-750 horsepower and many pre-research projects are underway. Low-friction insulation machine models continue to work.