The desmodromic valve system was not developed by Mercedes. The desmodromic valve system was actually invented and developed by Ducati.
The desmodromic valve system was first introduced by Ducati in their racing motorcycles in the 1950s and later incorporated into their production motorcycles. It is a valve actuation system that replaces the conventional valve springs with a system of cams and rocker arms, allowing for precise control of valve opening and closing.
The system was developed by Ducati engineer Fabio Taglioni, who believed that the desmodromic system would provide better valve control and improved engine performance, particularly at high engine speeds. The desmodromic system eliminates the possibility of valve float, which can occur in traditional spring-operated valves, allowing for higher RPM limits and more efficient engine operation.
While the desmodromic valve system has not been exclusive to Ducati, it is closely associated with the brand due to its extensive use in Ducati motorcycles. Ducati has continued to refine and develop the desmodromic system over the years, and it has become one of the defining characteristics of their motorcycles, contributing to their performance and unique sound.
Mercedes, as an automobile manufacturer, has utilized its own valve control systems in their engines, but the desmodromic system is not among them.