Complex sentence: Commercial usage of unit injectors in the US started in 1931 on Winton engines with a design by C.D. Salisbury and in 1934 Arthur Fielden was granted U.S. patent NO.1,981,913 on the unit injector design adopted for the General Motors two stroke diesel engine.
Split into simpler sentences: Commercial usage of unit injectors in the US started in 1931 on Winton engines with a design by C.D. Salisbury. In 1934 Arthur Fielden was granted U.S. patent NO.1,981,913 on the unit injector design adopted for the General Motors two stroke diesel engine.