Results 1 to 10 of about 102,186 (212)
Development of a new four-disc friction-free ball valve [PDF]
You-qi chuyun, 2021 In order to solve the problems of large operating torque, easy internal leakage and poor anti-fouling capability of the general ball valves in the oil and gas pipelines, a new type of four-disc friction-free ball valve was designed based on the existing ...
Yulong FENG +4 more
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Industrial Design of High Voltage Flexible DC Converter Valve [PDF]
Zhongguo dianli, 2020 To improve the product quality and added value of flexible DC converter valve, it is meaningful to investigate its corresponding industrial design method. Based on analyzing the design of the sub-module, valve module and valve tower of a ±320 kV flexible
Li QIAO +3 more
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Design and Experimental Research of a Miniature Digital Hydraulic Valve [PDF]
Micromachines, 2018 A digital hydraulic valve is an important component of the digital hydraulic system, and its performance is directly related to the system function. In order to make the valve system more competitive in dimension, digital valve miniaturization is an ...
Junhui Zhang, Meisheng Yang, Bing Xu
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Development and research of throttle-regulating valves with increased erosion resistance
Trudy Odesskogo Politehničeskogo Universiteta, 2020 The reliability and trouble-free operation of nuclear power plants is due to the reliability of the pipeline systems connecting the main and auxiliary equipment. The main elements of such systems are power valves, the reliable operation of which largely
Павло Яремович Павлишин +1 more
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A software and hardware design scheme of intelligent valve positioner [PDF]
E3S Web of Conferences, 2021 Valve positioner is the core component of the pneumatic control valve. A new software and hardware design scheme of intelligent valve positioner is presented in this paper.
Xu Haiming, Zhang Lanzhu
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Energies, 2021 The purpose of this study was to investigate the effect of valve mechanisms on the exhaust residual gas (ERG) and effective release energy (ERE) of a motorcycle engine. Here, a simulation model and the estimation a new valve mechanism design is presented.
Nguyen Xuan Khoa, Ocktaeck Lim
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Design and Test of a New Tracheostoma Valve Based on Inhalation [PDF]
Archives of Otolaryngology–Head & Neck Surgery, 1999 Tracheostoma valves are used to make hand-free speaking possible for persons who have undergone a laryngectomy.To design and test a new tracheostoma valve to improve existing tracheostoma valves.The tracheostoma valve closes by means of strong inhalation so that all the air that is exhaled is available for phonation.
Geertsema, AA +3 more
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Pressure losses and oscillations in a compact valve of a steam turbine [PDF]
MATEC Web of Conferences, 2021 Characteristics of a new compact valve design for steam turbines are analysed by measuring pressure losses and oscillations on the valve model. It is the model of an intercept valve of the intermediate-pressure turbine part.
Sláma Václav +5 more
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Nuclear Engineering and Technology, 2023 Pressure relief valve (PRV) is one of the important control valves used in nuclear power plants, and its sealing performance is crucial to ensure the safety and function of the entire pressure system.
Chaoyong Zong +6 more
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Design and Research of a New Thermostatic Valve
Research Journal of Applied Sciences, Engineering and Technology, 2014 This study designed a new type of intelligent thermostatic mixing valve which could keep the temperature and flux of the outlet water constant by the adaptive controller. It firstly established mathematical model of the valve about angle-flux and angle-temperature and then it applied the "Fluent" software to numerical simulation of the valve about flow
Chen Hai-Chu +3 more
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