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<p>Throttle valves, as critical components in high-pressure fluid control systems, are often accompanied by severe flow-induced noise, which threatens structural reliability, operational safety, and the acoustic environment. However, systematic reviews on throttle valve noise remain limited. Based on published literature, this article provides a comprehensive summary of current research progress from three perspectives: noise generation mechanisms, research methods, and noise mitigation strategies. Beyond consolidating the existing findings, the review also identifies key knowledge gaps, including the lack of predictive models for multi-source coupling, limited experimental validation under ultra-high-pressure conditions, and insufficient understanding of how material properties influence acoustic transmission. To address these gaps, potential future research directions are outlined. By combining critical assessment with forward-looking perspectives, this review aims to provide theoretical references and practical guidance for the design and optimization of next-generation low-noise, high-efficiency throttle valves.</p>

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A review of noise mechanisms and mitigation techniques in high-pressure throttle valves

  • 期刊论文

  • 发表日期：

    2026年7月25日

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  • Haiqin Wang,
  • Sheng Xu,
  • Zubin Zhang

摘要

Throttle valves, as critical components in high-pressure fluid control systems, are often accompanied by severe flow-induced noise, which threatens structural reliability, operational safety, and the acoustic environment. However, systematic reviews on throttle valve noise remain limited. Based on published literature, this article provides a comprehensive summary of current research progress from three perspectives: noise generation mechanisms, research methods, and noise mitigation strategies. Beyond consolidating the existing findings, the review also identifies key knowledge gaps, including the lack of predictive models for multi-source coupling, limited experimental validation under ultra-high-pressure conditions, and insufficient understanding of how material properties influence acoustic transmission. To address these gaps, potential future research directions are outlined. By combining critical assessment with forward-looking perspectives, this review aims to provide theoretical references and practical guidance for the design and optimization of next-generation low-noise, high-efficiency throttle valves.