Development Methodology for a Pulsation Damper of Gas Control Valves

Balyaba, Maxim; Ermilov, Mikhail A.; Kryuchkov, A. N.

doi:10.1016/j.proeng.2017.02.301

Cited by 1 publication

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“…The research on eliminating the pressure and flow pulsation of the pump has attracted wide attention. [10][11][12][13][14][15] A new vibration active control method was presented to diminish the vibrations of the fluid power supply efficiently. 16 O'Shea 17 discussed the theory and implementation to reduce flow pressure ripple by influencing the speed of a relatively-high volumetric displacement lowinertia pump through open-loop control of the driving motor torque.…”

Section: Introductionmentioning

confidence: 99%

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Flow pulsation reduction of a single-piston piezoelectric pump based on elastic cavity group and unloading valve

Wang

Yang

2021

Advances in Mechanical Engineering

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A piston piezoelectric (PZT) pump has many advantages for the use of light actuators. How to deal with the contradiction between the piston amount and oil delivery quality is an essence when designing the pump. In order to depress the pressure pulsation and flow pulsation in a single-piston PZT pump, a two-stage attenuator is proposed. It involves an elastic cavity group and an unloading valve. Unsteady flow inside the pump is numerically calculated and analyzed to reveal its delivery characteristic in the whole pumping cycle. The distributing process of the passive valves is obtained through the dynamic mesh technique. Influences of key design and operation factors on the delivery performance of the pump are analyzed. The results indicate that the flexible cavity group and the unloading valve arranged at the delivery port can reduce the flow pulsation by 45%. The design can effectively provide stable flow for the actuator in a certain frequency range.

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Section: Introductionmentioning

confidence: 99%

“…Figure11. Eddy viscosity distribution over one pumping cycle without attenuator: (a) t = 0.83 ms, (b) t = 1.67 ms, (c) t = 2.50 ms, (d) t = 3.33 ms, (e) t = 4.17 ms, (f) t = 5.00 ms, (g) t = 5.83 ms, (h) t = 6.67 ms, (i) t = 7.50 ms, and (j) t = 8.33 ms.…”

mentioning

confidence: 99%

Flow pulsation reduction of a single-piston piezoelectric pump based on elastic cavity group and unloading valve

Wang

Yang

2021

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

Development Methodology for a Pulsation Damper of Gas Control Valves

Cited by 1 publication

References 1 publication

Flow pulsation reduction of a single-piston piezoelectric pump based on elastic cavity group and unloading valve

Flow pulsation reduction of a single-piston piezoelectric pump based on elastic cavity group and unloading valve

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