The hydrogen injector developed by our company uses bypass technology and ejector technology to realize a new technological route of injector plus ejector module to replace the hydrogen circulation pump, thus eliminating various failures caused by the mechanical movement of the hydrogen circulation pump. mode, while reducing system cost and weight, the service life of the entire system is increased from less than half a year to at least three years. This product has low cost and high reliability. It has been supplied in batches to leading hydrogen fuel cell companies for nearly three years, and its market share ranks among the top three in the country.