Device for regulating flow and distributing fluid in a fluid circuit

By designing an integrated fluid circuit device and utilizing the longitudinal displacement of the shell and valve elements and the balance of the pressure chamber, the problems of complexity and high operating force of the refrigerant circuit system are solved, and a lightweight, low-cost and low-leakage fluid regulation effect is achieved.

CN114945767BActive Publication Date: 2025-09-19HANON SYST CO LTD
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Patent Information

Application Number
CN202180009150.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-01-17
Filing Date
2021-01-14
Publication Date
2025-09-19
Estimated Expiration
2041-01-14

AI Technical Summary

Technical Problem

The refrigerant circuit systems of existing motor vehicles are complex, heavy, and require a lot of installation space. In particular, when using carbon dioxide as the refrigerant, high valve operating force is required, which increases costs and operational complexity.

Method used

An integrated fluid circuit device is designed, comprising a housing and a valve element. The valve element is displaced along a longitudinal axis and combined with a drive element to achieve fluid regulation and distribution. A multifunctional valve combination is adopted to reduce the number of valves and connecting pipelines, and a pressure chamber is used to provide balance to reduce operating force.

Benefits of technology

It simplifies system complexity, reduces weight and installation space requirements, reduces operating effort and connecting pipelines, reduces production, maintenance and operating costs, and reduces the risk of refrigerant leakage.

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Abstract

The invention relates to a device (1) for regulating the flow and distributing a fluid, in particular a refrigerant, in a fluid circuit. The device (1) comprises a housing (2) having ports (3, 4, 5) for connecting to a fluid line, the ports (3, 4, 5) being connected via corresponding through-openings to at least one internal volume of the housing (2) designed as a valve chamber (6), the valve element (7) being arranged in the valve chamber (6) and having a drive element (9) for moving the valve element (7) relative to the housing (2). The at least one valve element (7) is mounted so that the valve element (7) can be displaced linearly in an axial direction along a longitudinal axis so that a passage for the fluid is opened between a first port (3) designed as an inlet and a second port (4) designed as a first outlet and / or a third port (5) designed as a second outlet. The valve element (7) is designed in the form of a cylinder oriented in the axial direction, and has a first section (7a) and a second section (7b) arranged in a manner spaced apart from each other in the axial direction and connected to each other via a coupling element (7c). The invention also relates to the use of the device (1-1, 1-2) in a refrigerant circuit of a thermal system, in particular a motor vehicle.
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