The model car "HW Unit Two " which improved "HW UnitOne" operated by the hot water powerd alpha type Stirling engine w as developed. A big improvement is the point that the engine was changed to a vertical type from a horizontal type. The vehicle height became high, but influence of the side thrust by the gravity disappeared entirely. Moreover, partiality of the center of gravity has disappeared. Therefore, performance of the engine could be improved and a stable driving became possible. In addition, the set up method of a front guide roller was devised. HW UnitTwo could drive a turn by this improvement. I carried out the race which supp osed HW class in Stirling techno rally. As a result, HW UnitTwo succeeded to drive one round and five blocks in 88 seconds without stopping at a turn.
06_お湯を熱源とする 低温度差 スターリングエンジンを 搭載した模型車 「 HW UnitTwo 」 の開発
