Design and evaluation of orifice arrangement for particle-excitation flow control valve

Hirooka, Daisuke; Suzumori, Koichi; Kanda, Takefumi

doi:10.1016/j.sna.2011.07.009

Cited by 17 publications

(5 citation statements)

References 12 publications

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“…The orifice plate displacement is controlled by changing the voltage applied to the transducer. In previous reports, for continuous flow control, we arranged orifices from the center at 0.2-mm intervals [31,32]. However, in that mechanism, orifice plate deformation condition was not considered and flow condition was nonlinear.…”

Section: Basic Control Mechanism Of Particle Excitationmentioning

confidence: 99%

“…A valve with displacement amplifier mechanisms is heavy and large. We designed flow control valves using particle excitation mechanism whose advantages are small size and high response [29][30][31][32]. This control mechanism uses PZT resonance frequency and does not need the displacement amplifier mechanism.…”

Section: Introductionmentioning

confidence: 99%

“…We showed new mechanism of the valve using deferent types of particles for stable flow control [30]. We discussed orifice condition of the valve and designed prototype that can control air flow continuously [31]. And we expanded orifices diameter to increase flow quantity and checked responsiveness of the valve [32].…”

Section: Introductionmentioning

confidence: 99%

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Optimization of orifice position in particle-excitation valve for proportional flow control

et al. 2017

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This paper reports an improvement of the particle-excitation flow control valve. The valve that we have designed in previous reports can control air flow, using particle excitation by piezoelectric resonance, and has the following advantages: small size, lightweight, high response and continuous airflow control. However, in our previous models, the relationship between the driving voltage and the flow quantity was nonlinear. In this report, we improved the valve to realize proportional flow control. The valve consists of the orifice plate, that has some orifices, and steel particles to seal the orifices and piezoelectric transducer. It controls air flow by the voltage applied to the transducer. For proportional flow control, it is important to adjust the orifice position adequately. In this report, we optimized the orifice position, considering resonance condition of the valve. We designed the experimental prototype using a boltclamped Langevin type transducer and decided orifice position. And we evaluated its vibration properties and flowrate characteristics. The experimental results showed that our designed prototype can proportionally control airflow.

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Section: Basic Control Mechanism Of Particle Excitationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimization of orifice position in particle-excitation valve for proportional flow control

et al. 2017

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“…The piezoelectric elements are in a multi-layer configuration and secured to the orifice plate with nuts. A previous and proven design of a pneumatic control valve was used for determining the arrangement and diameter of the orifices5Analytical results of vibrational mode, for three typical conditions.…”

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confidence: 99%

Hydraulic Control by Flow Control Valve Using Particle Excitation

Ukida

Suzumori

Nabae

et al. 2017

JFPS International Journal of Fluid Power System

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“…While lightweight materials have been actively applied to hydraulic valves for addressing this problem, due consideration was not paid to the driving principle: using large electromagnetic motors and complicated configurations. Therefore, this study aims to miniaturize the control valve by using a new driving method developed for pneumatic systems [3], [4]. This valve is smaller and lighter than conventional flow control valves for pneumatic.…”

mentioning

confidence: 99%

A small water flow control valve using particle excitation by PZT vibrator

Ukida

Suzumori

Nabae

et al. 2015

ICAM

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Hydraulic proportional valves generally suffer from their large size and heavy weight due to their complicated structures using large solenoids or motors. Therefore, they have some limitations of design or decrease mobility of hydraulic systems. In this paper, we present a small hydraulic flow control valve using particle excitation by a PZT vibrator. This valve can control the flow rate of water by the applied voltage to the PZT vibrator. The prototype of the proposed valve evaluated the relationship between the applied voltage, the impressed pressure, and the flow rate. This fundamental evaluation successfully indicated the flow-controllability of the proposed valve.

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Design and evaluation of orifice arrangement for particle-excitation flow control valve

Cited by 17 publications

References 12 publications

Optimization of orifice position in particle-excitation valve for proportional flow control

Optimization of orifice position in particle-excitation valve for proportional flow control

Hydraulic Control by Flow Control Valve Using Particle Excitation

A small water flow control valve using particle excitation by PZT vibrator

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