Divider power chuck is widely applied for numerical control machine tool, automation special machine, automobile, internalcombustionengine, engine, refrigerator valve, heating ventilation, etc.
In this paper, we present a unified optimal model, i. e., the minimizing functional with constraints for the optimal design of critical and low velocity internalcombustionenginevalve mechanism.
本文为中低速内燃机配气机构的最佳设计，提供了统一的优化模型——条件泛函极值问题。
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The permanent mould centrifugal casting process used for production of valve seat for internalcombustionengine and the material of casting was described.