Development and Experimental Study of a New High-Efficiency Diaphragm Hydraulic Diode

This work aims to develop and experimentally study a high-efficiency diaphragm hydraulic diode with an asymmetric configuration of plates of different lengths. The research focuses on creating a device with stable high diodicity over a wide range of operating pressure drops. The methodology included theoretical substantiation of the concept, manufacturing a prototype using 3D printing, and comprehensive testing on a specialized hydraulic test bench with water as the working fluid. A key result of this study is the confirmation of the high efficiency of the proposed design. It was found that the average diodicity of the developed hydraulic diode varies from 2.026 (at Δp = 10 kPa) to 1.824 (at Δp = 50 kPa). This performance is 20–40 % higher than that of traditional symmetrical analogues. The flow measurement error did not exceed 1.5%, and statistical analysis confirmed the reliability of the results. The practical value of the work lies in the potential application of the developed hydraulic diode in microfluidics, medical equipment, electronics cooling systems, and other areas requiring compact and efficient means of passive flow control.
EDN: QURLDN, https://elibrary/qurldn

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