Results 211 to 220 of about 1,102 (261)

Throttling Valves: Testing & Selection

Journal AWWA, 1972
Throttling valves play an important role in a distribution network. Whether they stand up to the flow conditions within the network depends on how appropriate a choice one makes with regard to matching design conditions of the water's flow and the valves’ dimensions.
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Nonlinear PID control of electronic throttle valve

2011 International Conference on Electrical and Control Engineering, 2011
An electronic throttle can regulate air inflow into the combustion system of the engine. However, because of the exist nonlinearities including friction, nonlinear spring in the system, it is difficult in controlling the throttle valve. A nonlinear PID controller is proposed in this paper, it constantly adjusts the controller parameters proportional ...
Quyang Zeng, Junli Wan
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Electronically controlled throttle synchronized with intake valves

2008 SICE Annual Conference, 2008
This paper proposes a new throttle control algorithm for synchronizing the intake valve dynamics. The throttle is controlled proportionally according to the pressure in intake manifold, so that the pressure is regulated as a constant value and efficiency of air intake is improved.
null Yuta Ikeda, Seiichi Shin
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The Design and Analyses of Magnetorheological Fluid Throttle Valve

Advanced Materials Research, 2011
Magnetorheological (MR) Fluid is an intellectual material with comprehensive prospect. In recent years, it is widely attended in the scientific-research field. Flow rate computational model of the MR throttle valve is derived by using Binham fluid model.
Rong Wu, Wen Xiang Lin, Wen Tang
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Throttle Valve Parts’ Process Planning

Applied Mechanics and Materials, 2012
Methods and steps of the process planning design were introduced by throttle valve parts. Technical requirements were determined and various parts of the stock allowance of roughcast were confirmed by process analysis of the parts, machining process route was finished completely. Theory was ready for the subsequent actual machining.
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Magnetorheological Throttle Valve in Passive Damping Systems

Journal of Intelligent Material Systems and Structures, 1998
The present paper considers the efficiency of modelling experimental pressureflowrate characteristics of an MR throttle valve by a technique, according to which hydraulic resistance coefficient of a valve is determined as a function of Reynolds and Hedstrdm numbers.
S. Gorodkin, A. Lukianovich, W. Kordonski   +2 more
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A pneumatic logic interface for valve throttling

Journal of Vacuum Science and Technology, 1975
The control advantages of manual throttling valves can be achieved with air−operated valves without any sacrifice to the inherent advantages of pneumatic control. The interface circuit is placed between system controls and the valve, and requires no modifications to existing equipment, other than the rerouting of air lines and power input to the ...
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Throttle Characteristics of ADS Valve for Shock Absorber

2019 IEEE 8th International Conference on Fluid Power and Mechatronics (FPM), 2019
To study the influence of throttle characteristics of ADS valve for shock absorber, the throttle characteristic model of damping valve in different deformation states are established on the basis of hydromechanics and elasticity mechanics theory. Influences of valve slices’ number, outer radius, maximum deformation and fixed throttle diameter on its ...
Jun Ke, Fangwei Xie, Erming Ding, Xinxing Zhang, Bing Zhang, Kewei He   +5 more
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Sliding Mode Control of Electronic Throttle Valve

Applied Mechanics and Materials, 2011
Electronic throttle is a typical nonlinear device because of the nonlinear reset springs. Normal sliding mode control usually leads to chattering. To reduce chatters, a sliding mode control method based on compensation of nonlinearity is proposed, in which an observer is designed to observe and compensate the nonlinearity.
Rong Di Yuan, Quan Quan Du, Hui Zong Feng   +2 more
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Multi Room Throttle Valve

2014
This text discusses how to use multi room throttle valves in pneumatics circuits. There are presented two valves. One of which is common—with one hole and the other with more holes. Both valves are subjected to an experiment using CFD, which should verify the effectiveness of throttling by multi room throttle valve compared to common throttle valve ...
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