proportional selection

The CAD software for a proportional valve and its working circuit is programmed by Visual Basic 6.0 and OOP ( object-oriented programming). The software includes a module for the selection and calculation of a proportional valve;

采用VISUAL BASIC6.0语言和面向对象的编程思想，开发了比例阀及其工作回路CAD软件。

The control characteristic of the Simadynd controller is that it adopts the controlling methods of proportional bypass and switching control mode via minimal selection.

控制特点是采用了比例旁路、通过小选器切换控制模式等控制方法。

Software Development of Proportional Valve Selection and Its Circuit CAD

比例阀选择及其工作回路的CAD软件开发

The thesis describes in detail the cooling system operating principle, especially the parameter calculation and selection of the main hydraulic element of the hydraulic drive system on the road-building machinery engine cooling device, and the selecting and matching of proportional spill valve and other designs, etc.

本论文对该冷却系统的工作原理、特别是发动机冷却装置液压驱动系统的主要液压元件的参数计算、选型及比例溢流阀的选择匹配等设计作了详细论述。