Article
Instruments & Instrumentation
Qiaosheng Pan, Yinghao Li, Weidong Diao, Xiaoliang Wang, Chi Zhang, Shanlin Liu, Ruijun Li
Summary: A resonant piezoelectric pump with a displacement-amplifying vibrator is proposed to enhance the output pressure. The working principle and influencing factors of the piezoelectric pump are analyzed theoretically, and the resonant frequency and stiffness of check valves with various thicknesses are simulated and compared. Three displacement amplifiers are designed and simulated. Prototypes of the piezoelectric pump are fabricated, and the effects of valve thickness, piston shaft diameter, and displacement-amplifying vibrator are experimentally investigated. The experimental results show that the piezoelectric pump prototype with a displacement-amplifying vibrator 3, 10 mm piston shaft, and 0.05 mm-thick check valve achieves the highest output pressure and flowrate.
SMART MATERIALS AND STRUCTURES
(2022)
Article
Instruments & Instrumentation
Qiaosheng Pan, Haiyang Jiang, Yifang Zhang, Ruijun Li, Bin Huang, Qiangxian Huang
Summary: In this study, a new valve-based piezoelectric ultrasonic pump was designed and tested. The pumping principle is divided into two processes: stepping and dripping. The experimental results showed that the improved valve design led to better stepping and dripping processes, resulting in increased flow rate.
SMART MATERIALS AND STRUCTURES
(2022)
Article
Chemistry, Analytical
Chunli Zhu, Xiaolong Shu, Dongcai Liu, Xianghan Du, Lexi Li, Qiaosheng Pan
Summary: This paper presents the design and study of a resonant-type piezoelectric pump, which features low-voltage drive and large output displacement. The characteristics of flow rate and backpressure with frequency and voltage variations are validated through simulation and experimentation.
Article
Automation & Control Systems
Hengyu Li, Junkao Liu, Yuming Feng, Jie Deng, Yingxiang Liu
Summary: In this article, a resonant piezoelectric active-valve pump driven by the serial connected three-chambers is proposed, which possesses high bandwidth and high output power. The configuration and driving principle of the pump are designed and studied, and the wet modal and frequency response analyses are performed. The multiphysical field coupling model of the pump is established, and the influences of frequency and outlet pressure on flowrate characteristics at different voltages are revealed. A physical prototype of the pump is manufactured and tested, showing promising results for its potential use in the hydraulic drive system of unmanned aerial vehicles with variable swept wings.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Mechanical
Teng Wang, Guorong Wang, Liming Dai, Linyan Chen, Shunzuo Qiu, Rong Li
Summary: The efficiency of reciprocating pumps is closely related to the performance of their valves. This study focuses on the valve motion mechanism of ultra-high pressure reciprocating pumps, establishing a mathematical model and conducting experiments to compare and analyze the results. The findings highlight the importance of crank-connecting rod ratio and accurate opening lag angle in predicting valve motion, especially in the rapid opening stage where three individual motion phases were identified.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Chemistry, Analytical
Xia Liu, Tongyu Wang, Hu Wang, Jun Hou, Jinlong Liu, Jiaying Lin, Shenfang Li, Zhicong Wang, Xiaochao Tian, Zhigang Yang
Summary: This paper improves the output performance of a piezoelectricity pump by changing the structure parameters of the fluid chamber to reduce the fluid load. The mechanism of fluid flow energy loss in the body cavity of hydraulic pumps is simulated and analyzed, and the influence of the dimensions of the inlet and outlet valves and the height of the cavity on fluid energy loss is obtained.
Article
Engineering, Electrical & Electronic
Song Chen, Chaoping Qian, Wentao Cheng, Junwu Kan, Jiajian Ji, Zhonghua Zhang, Jiantao Wang
Summary: A low frequency driven piezoelectric pump with flexible valve is proposed to achieve precise flow control by adjusting driving voltage or driving frequency. Experimental results indicate that the optimal frequency of the pump increases with the thickness of the flexible valve, leading to a decrease in flow rate. The output flow rate of the pump has a good linear relationship with driving frequency and voltage under different external loads.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Review
Engineering, Electrical & Electronic
Xiaoqiang Wu, Lipeng He, Yi Hou, Xiaochao Tian, Xilu Zhao
Summary: This paper summarizes the development of passive check valve piezoelectric pumps in recent years, introduces different types of check valves, and analyzes their characteristics and advantages and disadvantages. The prospect of check valve piezoelectric pump is mentioned, which can contribute references for future research.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Engineering, Electrical & Electronic
Yiwen Fan, Weixian Zhao, Xinfeng Zhang, Xingjian Yu, Xiaobing Luo
Summary: A novel design of piezoelectric pump with unfixed check valve was proposed in this study, simplifying assembly process and improving output performance significantly. Investigation on flow resistance and volumetric efficiency of the pump revealed that the unfixed valve can enhance the pump's volumetric efficiency, leading to improved flow rate.
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Xiaosheng Chen, Zhenlin Chen, Zhenzhen Gui, Fan Zhang, Weirong Zhang, Xiaosi Zhou, Xi Huang, Jianhui Zhang
Summary: A highly integrated valve-less piezoelectric micropump for generating recirculating flow was proposed, utilizing a novel double-loop tube design and piezoelectric-actuated chamber. Experimental results demonstrated the system's capability to generate internal recirculating flow and pump effect, with flow rate and output pressure affected by characteristic length of the cross section and vibrator amplitude.
ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
(2021)
Article
Materials Science, Multidisciplinary
Weidong Diao, Yang Ye, Jian Chen, Qiaosheng Pan, Zhihua Feng
Summary: This paper proposes a novel piezoelectric pump with compressible space to improve efficiency and stability. Experimental results demonstrate that medium-sized and near-valve compressible spaces have the best effect on pump performance.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Qiaosheng Pan, Haiyang Jiang, Ziliang Huang, Bin Huang, Ruijun Li, Biao Wang, Zhihua Feng
Summary: This study designs, fabricates and tests a new piezoelectric pump with a polystyrene ball check valve structure, achieving high flow rate and maximum back pressure. The simple and lightweight ball check valve structure is beneficial for high-frequency operation. Introducing compressible spaces can improve the stability and flow uniformity of the pump.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2021)
Article
Instruments & Instrumentation
Zheng Zhang, Lipeng He, Jianwen Zhou, Yi Hou, Dianbin Hu, Guangming Cheng
Summary: This paper proposes an integral valve by connecting the inlet cantilever valve and the outlet cantilever valve with a connecting post and a rubber circle plate structure. Experimental results show that the integral valve piezoelectric pump has better performance and efficiency.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Materials Science, Multidisciplinary
Ji Ding, Yi Cao, Quanqu Chen, Jingshi Dong, Zhi Xu, Dayue Tian, Chang Liu, Bowen Zhang, Ping Zeng, Yue Wu, Zhigang Yang
Summary: This paper presents a simple piezoelectric-actuated inertial pump developed to address the challenging issue of sampling fluids from small-diameter deep pipelines. By utilizing a bionic valve design, the fluid driving mechanism was optimized. The experimental results demonstrated a maximum output flow of 170.25 ml/min under specific parameters.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2021)
Article
Chemistry, Analytical
Jian Chen, Wenzhi Gao, Changhai Liu, Liangguo He, Yishan Zeng
Summary: By adding proof masses to the free ends of the prongs of a U-shaped piezoelectric resonator, the output performance of a piezoelectric pump was significantly improved. Experimental results demonstrated remarkable improvements in the working efficiency of the miniature pump at optimal operating frequency.
Article
Instruments & Instrumentation
Jinfeng Zhong, Yuting Ma, Xintao Yan, Feifei Song, Ce Wang
REVIEW OF SCIENTIFIC INSTRUMENTS
(2018)
Article
Instruments & Instrumentation
Xintao Yan, Ce Wang, Yuting Ma, Yao Wang, Feifei Song, Jinfeng Zhong, Xiaodong Wu
Summary: Skin wounds, especially large-area trauma, can cause severe pain and even be life-threatening. Local autologous cell transplantation has become a promising method for wound healing. However, the low viscosity of the cell suspension prepared with normal saline leads to uneven coverage and cell loss. A novel air-assisted atomization device (AAAD) was developed to overcome this issue. The AAAD can uniformly spray a high-viscosity bio-ink, maintaining cell viability and proliferation rate. This technology has great potential for cell transplantation therapy, especially in treating large-area or irregular skin wounds.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
