美国卡明斯试制成功汽车绝热发动机。该发动机使用陶瓷零件,热效率可提高约30～50％,该车在美国哥伦比亚特区轻载圓形公路上试驶情况良好,共计行程约10000公里。该机是在已有的180千瓦NHC—250型发动机基础上研制成功的,是涡轮增压六缸机、气缸内径14厘米、冲程为15厘米,六缸容积14公升,在2100转/分的转速下,功率为170千瓦。燃烧室部件包括:汽缸套筒和盖、活塞凸 Cummins trial successful car adiabatic engine. The engine uses ceramic parts, the thermal efficiency can be increased by about 30 ~ 50%, the car in the United States of America on the light-load circular road test drive in good condition, a total of about 10,000 kilometers trip. The aircraft is based on the existing 180-kilowatt NHC-250 engine developed on the basis of the turbocharged six-cylinder machine, the cylinder diameter of 14 cm, 15 cm stroke, six-cylinder capacity of 14 liters at 2100 rev / min Speed, power is 170 kilowatts. Combustion chamber components include: cylinder sleeve and cover, piston convex