Development of piezohydraulic actuator driven by piezomembrane pump

Kan, Junwu; Wang, Shuyun; Zhang, Zhonghua; Zeng, Ping; Cheng, Guangming; Zheng, Xuemei; Shen, Huangqiao

doi:10.1177/1045389x11414074

Cited by 20 publications

(13 citation statements)

References 38 publications

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“…Equation (15) shows that the initial chamber volume has a great effect on fluid compressibility. Furthermore, the opening height and check efficiency of check valve and reflux in different chambers also changed with fluid compressibility (Kan et al, 2011). Thus, the pumping performance is further affected.…”

Section: Discussionmentioning

confidence: 99%

Performance evaluation and comparison of a serial–parallel hybrid multichamber piezoelectric pump

Zhang

Chen

Wang

et al. 2018

Journal of Intelligent Material Systems and Structures

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To improve the output capability of piezoelectric pumps, researchers have made an attempt to combine multiple single-chamber pumps either in series or in parallel. In this article, a serial–parallel hybrid multichamber piezoelectric pump is presented. The novel serial–parallel hybrid multichamber piezoelectric pump structure is characterized by the simultaneous occurrence of serial/parallel forms through a combination of synchronous and asynchronous modes of piezoelectric actuators. Moreover, the pump can be operated in multiple working modes to obtain the desired chamber volume and number through different serial–parallel configurations. The performance characteristics of the pump with various serial–parallel hybrid combinations were experimentally investigated and evaluated using a quintuple-chamber pump at 90 V with a frequency range of 60–400 Hz. Experimental results showed that the characteristics in terms of flow rate and backpressure changed significantly with different serial–parallel modes. Nevertheless, the backpressure presented very similar characteristics for the serial–parallel hybrid multichamber piezoelectric pump with the same number of in-phase parallel actuators. Meanwhile, the frequency-dependent flow rate characteristics were approximately similar for those pumps with symmetric serial–parallel combinations. It was found that the flow rate and backpressure mainly depended on the actuation frequency and serial–parallel modes, respectively. Compared with the quintuple-chamber pump with full out-of-phase actuators, the maximum powers of the serial–parallel hybrid multichamber piezoelectric pump with two, three, four, and five in-phase actuators were decreased by 21.1%, 51.4%, 77.7%, and 94.4%, respectively.

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Section: Discussionmentioning

confidence: 99%

Performance evaluation and comparison of a serial–parallel hybrid multichamber piezoelectric pump

Zhang

Chen

Wang

et al. 2018

Journal of Intelligent Material Systems and Structures

Self Cite

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“…When single-chamber piezoelectric pumps are connected in serial, the output pressure and output flow rate with no external load are (Kan et al, 2008, 2011)…”

Section: Structure and Working Principlementioning

confidence: 99%

“…Azarbadegan et al (2010) analyzed and investigated a valveless PMHP with two chambers in parallel and serial connection and studied combination rules for multi-chamber PMHP. Kan et al (2011) developed a PMHP with five chambers in serial connection, which was used for replacing PSHP in hydraulic systems. At the driving voltage of 180 V, the thrust and velocity of the hydraulic system is 75 N and 9.8 mm/min, respectively.…”

Section: Introductionmentioning

confidence: 99%

A miniature piezomembrane hydraulic pump with decreasing chambers in succession

Chen

Kan

et al. 2020

Journal of Intelligent Material Systems and Structures

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A miniature piezomembrane hydraulic pump with decreasing chambers in succession (PHPDCS) is presented. The number of chambers in PHPDCS decreases successively in two serial stages. The first stage consists of two chambers in parallel while the second stage consists of only one chamber. The proposed PHPDCS has the comprehensive advantages of serial and parallel connection of multi-chamber and has a high energy conversion efficiency. The prototype of PHPDCS is designed and manufactured. The output performance of PHPDCS under different external loads is investigated by experiments. Experimental results indicate that the optimum flow rate of the proposed PHPDCS is obtained when phase difference between two serial stages is 180°. The output performance of PHPDCS is superior to that of traditional piezoelectric pumps with two chambers in serial (PPCS). At 50 Hz, the maximum flow rate of PHPDCS under external load of 5 kPa is more than twice as high as that of PPCS. Under the external load of 10 kPa, the maximum flow rate of PHPDCS reaches 6.87 mL/min, whereas PPCS has no flow rate output.

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“…Typically, piezoelectrically-actuated pumps use a piezoelectric actuator to move a membrane in a chamber providing fluid delivery with the flow direction being controlled by check valves [11,12]. Applications can be found from micro-dosing drug administration to propelling microspacecraft [13,14,15,16,17]. …”

Section: Introductionmentioning

confidence: 99%

Development and Characterization a Single-Active-Chamber Piezoelectric Membrane Pump with Multiple Passive Check Valves

Zhang

Feng

et al. 2016

Sensors

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In order to prevent the backward flow of piezoelectric pumps, this paper presents a single-active-chamber piezoelectric membrane pump with multiple passive check valves. Under the condition of a fixed total number of passive check valves, by means of changing the inlet valves and outlet valves’ configuration, the pumping characteristics in terms of flow rate and backpressure are experimentally investigated. Like the maximum flow rate and backpressure, the testing results show that the optimal frequencies are significantly affected by changes in the number inlet valves and outlet valves. The variation ratios of the maximum flow rate and the maximum backpressure are up to 66% and less than 20%, respectively. Furthermore, the piezoelectric pump generally demonstrates very similar flow rate and backpressure characteristics when the number of inlet valves in one kind of configuration is the same as that of outlet valves in another configuration. The comparison indicates that the backflow from the pumping chamber to inlet is basically the same as the backflow from the outlet to the pumping chamber. No matter whether the number of inlet valves or the number of outlet valves is increased, the backflow can be effectively reduced. In addition, the backpressure fluctuation can be significantly suppressed with an increase of either inlet valves or outlet valves. It also means that the pump can prevent the backflow more effectively at the cost of power consumption. The pump is very suitable for conditions where more accurate flow rates are needed and wear and fatigue of check valves often occur.

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Development of piezohydraulic actuator driven by piezomembrane pump

Cited by 20 publications

References 38 publications

Performance evaluation and comparison of a serial–parallel hybrid multichamber piezoelectric pump

Performance evaluation and comparison of a serial–parallel hybrid multichamber piezoelectric pump

A miniature piezomembrane hydraulic pump with decreasing chambers in succession

Development and Characterization a Single-Active-Chamber Piezoelectric Membrane Pump with Multiple Passive Check Valves

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