A First Step towards the Performance Enhancement of IC Engines Using a Desmodromic Valve System

Abstract

The traditional valve train system consists of a spring mechanism with a specific level of stiffness. When compressing the spring, a significant amount of power is required. However, by replacing the conventional valve spring mechanism with a desmodromic valve system, the stiffness is reduced, leading to improved engine performance. This study analyzed the impact of this replacement on the engine’s performance and overall weight using finite element modeling. A comparative study was also conducted, which revealed that the desmodromic valve system generates a torque of more than 120 Nm, surpassing the 105 Nm produced by the traditional valve system. Furthermore, the weight of the desmo engine only increased by 2.75 kg.

Keywords

• desmodromic valve system
• valve train mechanism
• finite element analysis
• IC engines
• engine torque