Effects of driving pressure modulation on performance of controllable jet injection system

ZENG Dongping1, KANG Yong2, LIU Zhong1, YU Zheqing1, LI Jiamin2

Journal of Vibration and Shock ›› 2023, Vol. 42 ›› Issue (5) : 7-12.

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PDF(1955 KB)
Journal of Vibration and Shock ›› 2023, Vol. 42 ›› Issue (5) : 7-12.

Effects of driving pressure modulation on performance of controllable jet injection system

  • ZENG Dongping1, KANG Yong2, LIU Zhong1, YU Zheqing1, LI Jiamin2
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Abstract

In order to explore the influence of driving pressure modulation on the dynamic characteristics and injection performance of the controllable jet injection system, a high-precision jet pressure test platform and a high-speed photographic device were used to test and analyze the jet impact characteristics and diffusion characteristics. Combined with the experimental results of in vitro tissue injection, the mechanism of driving pressure modulation was explored. The results show that the requirements of the high and low two-stage jet velocity of the controllable jet injection system can be achieved by switching the driving pressure. And with the regulation of driving pressure, the impact and diffusion characteristics of the jet injection system can be controlled. Also,there are optimal driving pressure combinations for different injection volume conditions. The optimal driving pressure combination of 1.0 mL (a typical large-dose injection condition) is (1.00-0.25) MPa. Thus, the injection effect of the jet injection system can be improved by driving pressure modulation.

Key words

water jet technology / jet injection system / controllable device / driving pressure modulation / jet impact characteristics

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ZENG Dongping1, KANG Yong2, LIU Zhong1, YU Zheqing1, LI Jiamin2. Effects of driving pressure modulation on performance of controllable jet injection system[J]. Journal of Vibration and Shock, 2023, 42(5): 7-12

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