Pressure vessel for storing a fluid

By introducing a low-elasticity connection between the pressure vessel and the main body, the problem of difficult bending processing is solved, productivity and compactness are improved, and fluid flow is ensured.

CN122148886APending Publication Date: 2026-06-05TOYOTA JIDOSHA KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TOYOTA JIDOSHA KK
Filing Date
2025-11-12
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing pressure vessels suffer from reduced productivity and internal space deformation during bending processes, especially at connection points where bending is difficult, leading to increased volume and poor compactness.

Method used

The low-elasticity connecting part is used to connect with the adjacent main body part. The low-elasticity connecting part and the adjacent main body part are separately constructed to ensure a low elastic modulus. The connecting part is connected to the main body part by laser welding to reduce the elastic modulus of the connecting part so as to facilitate bending and forming.

Benefits of technology

This has improved the productivity of pressure vessels, reduced the difficulty of bending processes, suppressed the increase in volume of the connection parts, and ensured compactness and good fluid flow.

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Abstract

The present invention provides a pressure container for storing a fluid. The pressure container is provided with a liner of the pressure container, the liner being provided with: a plurality of body portions that are elongated cylindrical bodies; and a plurality of connecting portions that connect two of the body portions adjacent to each other in series and are bent in a manner of folding the plurality of body portions, the plurality of connecting portions including at least one low-elasticity connecting portion that is contiguous to the body portions and has a lower modulus of elasticity than the body portions.
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Citation Information

Patent Citations

  • JP2018519480A