수리 사례

2026. 6. 30. 작업

증상

Why did Ducati decide to use the desmodromic valve train rather than a more tradition valve train?

처리 내용

Ducati use desmodromic valve systems because it provides for; A more faithful adherence to both; (1A) Not just high speed Valvetrain timing. (1B) But also high acceleration Valvetrain rates; regardless of what weight/material the valve is made from. The latter (1B) - which can provide an advantage over the pneumatic Valvetrain design approach - allows for a more optimal and square-wave like Valvetrain function; a function that most typical valve-spring Valvetrains (even at moderate speeds) simply can’t accommodate. An alternative to pneumatic Valvetrain design approaches used by other manufacturers in MotoGP; that - if implemented correctly - can also provide both weight savings and also cylinder head port geometry benefits. Footnote Ducati's desmodromic valve system was (contrary to popular belief) not invented by them, it does actually employ springs (see links below), and (some of) the significant considerations and/or drawbacks of the desmodromic valve approach are as follows; A co