The paper deals with the theoretical and experimental analysis of a proportional pneumatic device.Such a piece of equipment can be integrated in the structure of an intelligent system that works with compressed gases.Different constructive variants of this type of equipment are analyzed.Authors focus their attention on a device that makes use of an electro-mechanic actuator operating with a proportional electromagnet.For the mathematical model some simplifying assumptions are identified.The mathematical model is numerically integrated.The behavior of the proportional pneumatic device at the variation of the inlet pressure and outlet mass flow rate consumption is pointed out.
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