It is well known fact that at the early stage of now operating each type of low speed marine diesel engines there occurred various troubles about the components of combustion chamber. We have also, to our regrets, some experiences about the pistons and the cylinder covers of our KSZ series engines at their early stage.
For this problems, we carried out various investigations, such as stress analyses by Finite Element Method, stress measurements and etc. Based on these investigations, we developed the improved types for each components and have been following up their running results.
Consequently, we now consider that the designing problems for these components are basically solved and the reliability of the each improved type components are already confirmed. Futheremore, these investigation results are applied on the new design of next series KSZ-B type engines.
We mentioned in this paper our findings regarding the strength design of KSZ type cylinder cover and the reliability of this type.
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