驱动压力调节对可控型射流注射系统性能的影响

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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

Received: 19 April 2022 Published: 15 March 2023

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	Articles by authors
	ZENG Dongping1
	KANG Yong2
	LIU Zhong1
	YU Zheqing1
	LI Jiamin2

Cite this article:

ZENG Dongping1,KANG Yong2,LIU Zhong1, et al. 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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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2023/V42/I5/7

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