pocketrocket

The Desmodromic valves are a type of valve mechanism used in internal combustion engines to control the intake and exhaust of air and fuel. In a typical engine, the valves are operated by a camshaft that opens and closes them at specific times in the engine's four-stroke cycle. Desmodromic valves, on the other hand, use a different method to control the valve opening and closing. Instead of relying on a spring to close the valve, the desmodromic system uses a separate cam to close the valve, ensuring that it fully seats and doesn't bounce or float at high engine speeds. The word "desmodromic" comes from the Greek words "desmos," meaning "bond" or "tie," and "dromos," meaning "running." This refers to the way the valve is mechanically tied to the camshaft, rather than relying on a spring to return it to the closed position. Desmodromic valves were first developed by the Italian automaker Ducati for their motorcycles, bu...