In the paper a new method of using disc shaped spring in the multi way valve as reset spring is introduced, and the design model for characteristic optimization of reset spring is created.

本文提出了采用碟形弹簧，作为多路阀复位弹簧的新方法，建立了这种复位弹簧的特性方程及优化设计模型。

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The model VTDRY multi spring actuator, has the advantages of low height, light weight, convenient installation advantages repair.

采用新型VTDRY多弹簧执行机构，具有高度低、重量轻、安装维修简便等优点。

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Theoretical analyzing the Routine Method, Modified Routine Method, Multi-Hinge Ring Method and Beam-Spring Model Method respectively, and choose the appropriate design method after comparison.

分别对惯用法、修正惯用法、多铰环法和梁—弹簧模型法进行了理论分析，对比并选择了合理的设计方法。

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