横流式水轮机（英语：Cross-Flow Turbine）又称为本吉式水轮机（英语：Bánki-Michell turbine）或是奥斯伯杰式水轮机（德语：Ossberger turbine）是由澳大利亚机械工程师安东尼·米歇尔，匈牙利工程师多纳特本吉以及德国工程师弗里茨奥斯伯杰，所设计出的水轮机类型。米歇尔于1903年因为自身所设计的水轮发电机组而获得专利，并长年任职于韦茅斯生产公司时，制造了许多以他自己设计专利为基础的发电机组。奥斯伯杰的第一项专利认证在1933年获得（"自由喷气涡轮机" 1922年，帝国专利编号361593以及"横流式水轮机" 1933年，帝国专利编号615445），并且，他将其设计的这种水轮机订为标准产品。如今，奥斯伯杰透过成立公司来成为这种类型水轮机的领导制造商。

A cross-flow turbine, Bánki-Michell turbine, or Ossberger turbine is a water turbine developed by the Australian Anthony Michell, the Hungarian Donát Bánki and the German Fritz Ossberger. Michell obtained patents for his turbine design in 1903, and the manufacturing company Weymouth made it for many years. Ossberger's first patent was granted in 1933 ("Free Jet Turbine" 1922, Imperial Patent No. 361593 and the "Cross Flow Turbine" 1933, Imperial Patent No. 615445), and he manufactured this turbine as a standard product. Today, the company founded by Ossberger is the leading manufacturer of this type of turbine.