Research on the Injection Performance of a Novel Lubricating Device Based on Piezoelectric Micro-Jet Technology

Li, Kai; Chen, Weishan; Ye, Le; Zhang, Lu

doi:10.1007/s11664-016-4603-5

Cited by 8 publications

(4 citation statements)

References 13 publications

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“…Later in 2021, Hadad et al [142] introduced a more integrated device and experiments were conducted in lathe machining. From 2016, Li et al [143][144][145][146][147][148] introduced a piezoelectricdriven nozzle to produce the oil drop for lubrication, the piezoelectric actuator extrudes the oil in the cavity directly through a tiny nozzle. A similar drive mechanism was also studied by other scholars.…”

Section: Pump With Innovative Structurementioning

confidence: 99%

“…As the viscosity of the medium for delivery increases, the lubrication of the bearing and shaft is also attempted by the pump [154], and the small size of the pump makes it researchworthy to integrate the pump into the shaft system [143][144][145][146][147][148]. The pump is also applied for hydraulic cylinder pushing [173] and spraying for drug and pesticide [151] in figure 15(a).…”

Section: Applicationmentioning

confidence: 99%

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Recent trends in structures and applications of valveless piezoelectric pump—a review

et al. 2022

J. Micromech. Microeng.

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Piezoelectric actuator-driven valveless pump has been studied for a long time in theory and structure for the features of high precision, fast response, low power consumption, compact size, reliability for long-term use and high performance. The pump has a remarkable significance for drug delivery, biological application, chemical analysis, high precision gluing, solder paste, lubrication system and electronic chip cooling system, etc. However, a higher requirement on the control circuit and power supply for the pump is raised, also, the driving voltage of the pump should be further reduced. In this review, the piezoelectric pump with and without valve is analysed in working principle. Then, the recent trends of valveless pump in different structures are discussed. The representative structural designs in different thinking are introduced in the working media, driven voltage, frequency, flow rate, pressure, and the efficiency of the pump, the performance of different pumps are also compared. Afterwards, the application of the pump for different purposes with featured structures are presented. Next are the limitations and the outlook of the pump, which provides some potential research points for subsequent studies, and ended with a summary. This review concludes the recent trends of valveless piezoelectric pump in structural and application, attempts to guide the researchers with different professional backgrounds that can solve current problems through cross-disciplinary approaches.

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Section: Pump With Innovative Structurementioning

confidence: 99%

Section: Applicationmentioning

confidence: 99%

Recent trends in structures and applications of valveless piezoelectric pump—a review

et al. 2022

J. Micromech. Microeng.

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“…The influences of the pulse voltage parameters on the ejection performance of the micro-jet are widely studied by researchers based on the analysis of the hydrodynamic characteristics [ 10 , 11 , 12 , 13 , 14 ]. However, the ejection performance of the micro-jet is also affected by the acoustic properties of the fluid and the acoustic impedance of the shell.…”

Section: Introductionmentioning

confidence: 99%

Comparative Influences of Fluid and Shell on Modeled Ejection Performance of a Piezoelectric Micro-Jet

Liu

Chen

et al. 2017

Micromachines

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The piezoelectric micro-jet, which can achieve the drop-on-demand requirement, is based on ink-jet technology and small droplets can be ejected out by precise control. The droplets are driven out of the nozzle by the acoustic pressure waves which are generated by the piezoelectric vibrator. The propagation processes of the acoustic pressure waves are affected by the acoustic properties of the fluid and the shell material of the micro-jet, as well as the excitations and the structure sizes. The influences of the fluid density and acoustic velocity in the fluid on the nozzle pressure and support reaction force of the vibrator are analyzed in this paper. The effects of the shell material on the ejection performance are studied as well. In order to improve the ejection performance of the micro-jet, for ejecting a given fluid, the recommended methods of selecting the shell material and adjusting excitations are provided based on the results, and the influences of the factors on working frequencies are obtained as well.

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“…The droplets are ejected out of the nozzle under the excitation of pulse voltages, and researchers are focused on the optimization analysis of the excitation according, according to the research on the hydrodynamic characteristics of the micro-jet, to improve the injection performance [6][7][8][9]. And, as a sound field is created in the cavity of the micro-jet when the vibrator vibrates, professor D. Bogy proposed to use acoustic theory to analyze the pressure characteristics of the cavity and the nozzle part.…”

Section: Introductionmentioning

confidence: 99%

Effect of Added Mass on the Working Frequency of Slapping Mode Piezoelectric Micro-Jet

Liu¹,

Li²,

Chen³

et al. 2016

Proceedings of the 2016 Joint International Information Technology, Mechanical and Electronic Engineering

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Abstract. The piezoelectric micro-jet is a multi-physics coupling device which contains electro-mechanical coupling, fluid-structure coupling and gas-liquid two phase flow coupling. The fluid-structure coupling is mainly referring to the coupling effect between the piezoelectric vibrator and the fluid. Generally, the working frequency of the micro-jet is the resonant frequency of the vibrator which is affected by the fluid-structure coupling. The fluid-structure coupling effect of a kind of micro-jet, which is used for the bearing lubrication, is analyzed in this paper. The added mass is created on the piezoelectric vibrator due to the strong fluid-structure coupling effect, as the vibrator of the micro-jet is immersed in the lubricating oil. The added mass of the piezoelectric vibrator, which directly influences the resonance frequency, is studied in this paper. The relationships between the influence factors and impact strength of the added mass are analyzed and the method of reducing the effect of additional mass is presented. In addition, the adjustment scheme of the working frequency of the micro-jet by taking advantage of the additional mass effect is given.

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Research on the Injection Performance of a Novel Lubricating Device Based on Piezoelectric Micro-Jet Technology

Cited by 8 publications

References 13 publications

Recent trends in structures and applications of valveless piezoelectric pump—a review

Recent trends in structures and applications of valveless piezoelectric pump—a review

Comparative Influences of Fluid and Shell on Modeled Ejection Performance of a Piezoelectric Micro-Jet

Effect of Added Mass on the Working Frequency of Slapping Mode Piezoelectric Micro-Jet

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