1989-02-01

Development of a High Strength Valve Spring 890220

Development of a high strength valve spring for automotive engines achieves higher power output and better fuel economy. New material which consists of finely structure and subjected to advanced shot peening, has been developed. Stress analysis of the valve spring moving edge, using the finite element method, has been done for effective application. The merits of this new spring have been confirmed by engine experiments.

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