Investigation of the Dynamic Characteristics of a Two-Stage High-Speed On/Off Valve with Adjustable Maximum Opening
نویسندگان
چکیده
The effective way to improve the reliability of fuel metering system in an aero-engine is use a high-speed on/off valve (HSV) instead servo as pilot stage valve. However, dynamic performance easily affected by HSV, so novel two-stage with adjustable maximum opening (AMOHSV) proposed which stroke main regulated rod. Firstly, structure and working principle are presented. Then, entire mathematical model established verified based on multi-physical field coupling mechanism. Finally, simulations experiments prove that when 0.2 mm, total time closing AMOHSV within 5 ms. In addition, upward inflection point downward pressure curve control chamber can be used identify time, respectively. research results also solves conflict between flow rate traditional HSV.
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ژورنال
عنوان ژورنال: Aerospace
سال: 2023
ISSN: ['2226-4310']
DOI: https://doi.org/10.3390/aerospace10020109