本文是应埃及电力局的要求所研究的成果。该局希望在尼罗河三角洲极低水头灌溉渠道跌水建筑物以及水位控制闸上回收流失的能量。作者回顾了上射式水车的老概念，提出了一种与现代设计和制造工艺技术相结合的新思路。 This article is the result of research at the request of the Egyptian Authority. The council hopes to recover lost energy from infrastructures and water level brakes at very low headwater irrigation channels in the Nile Delta. The author reviews the old concept of on-jet waterwheel and proposes a new idea combined with modern design and manufacturing process technology.