Analysis and Improvement of Valve Spring Fracture of Diesel Engine
The valve springs need to withstand the alternating load by the valve train movement,which should ensure the sealing of the valve,and prevent the valve foating from accelerating.This requires that the valve spring should be strong enough and resistant to fatigue.In this paper,the failure of valve springs in the durability of diesel engine is analyzed in detail from material and calculation.Through several improvement,calculation analy-sis,test verification of the improved scheme and the batch verification has been obtained.It provides a reference for the continuous improvement of the valve spring design and improvments in the new product development.