This Swedish Inventor OUTSMARTED Detroit With a "STRANGE" Free Piston Engine in 1928

In 1928, a little-known Swedish inventor shocked the automotive world with a radical idea: a free-piston engine unlike anything Detroit had ever seen. Decades ahead of its time, the design eliminated the crankshaft, reduced moving parts, and promised efficiency levels traditional engines couldn’t match. In this video, we explore how the invention worked, why engineers around the world were stunned by its performance, the challenges that prevented widespread adoption, and how modern researchers are revisiting the concept today. This is the fascinating story of an engine so strange—and so brilliant—that it threatened to rewrite everything we knew about combustion.