Valve trim assembly for gas flow regulation, regulating valve, pressure reducing valve group and related control method

By designing a valve core assembly with axial grooves and a sleeve structure, as well as an electromagnetic actuator, the problems of valve core position maintenance and gas flow control in high-pressure fluid environments were solved, achieving stable and reliable valve regulation and safe control.

CN122407831APending Publication Date: 2026-07-17BOSCH AUTOMOTIVE SYSTEMS (WUXI) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BOSCH AUTOMOTIVE SYSTEMS (WUXI) CO LTD
Filing Date
2025-01-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing valves have difficulty maintaining the valve core at the expected throttling position in high-pressure fluid environments, and the gas flow is not easy to control precisely, resulting in a decrease in the controllability and reliability of the valve, especially posing safety hazards in low-flow regulation areas under high-pressure gas environments.

Method used

Design a valve core assembly including an axially extending valve core and a valve core sleeve sleeved outside it. The valve core sleeve has throttling sections and orifices with different inner diameters. Combined with a groove structure, it realizes balanced force and stable regulation of fluid flow. Equipped with an electromagnetic actuator and an electronic control unit, it realizes flexible control of the valve core.

Benefits of technology

It achieves stable and reliable adjustment of the valve core in high-pressure gas environments, improves the controllability and flexibility of the valve, adapts to a wide range of input pressure changes, and reduces the risk of gas leakage.

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Abstract

本申请涉及一种用于气体流调节的阀芯组件,包括:阀芯,所述阀芯轴向延伸并限定大体恒定的第一外径,其中,从所述阀芯的周向外表面径向向内凹陷形成有轴向分隔的两组凹槽;以及套设在阀芯外的阀芯套筒,所述阀芯套筒包括在阀芯套筒的轴向相反两端处形成的具有与第一外径相等的第一内径的两个节流段和连接在两个节流段之间的具有比第一外径大的第二内径的中间段,其中,在所述中间段中形成有至少一对直径对置的孔口。相应地,还提供了包括所述阀芯组件的调节阀以及包含所述调节阀的减压阀组,以及相关的控制方法、计算机程序产品和燃料供应系统电子控制单元。
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