This is an internal combustion engine, introduced in 1868, that uses sleeve valves instead of the poppet valves. Later on it was used in many Mercedes cars, such as the 10/30 hp. Its influence in today's engines cannot be ignored, but can you guess its name?

The Knight engine was designed by Charles Yale Knight and later on bought by Mercedes. The sleeve valves offered low noise and efficiency, which was much needed at that time.

Asked by Vasilii Kulev · Last updated 5 years ago · 21.4K views · SOURCE