Refrigerated container

EP4579154A1Pending Publication Date: 2025-07-02MITSUBISHI HEAVY IND LTD
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Patent Information

Application Number
EP2023874570
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-10-07
Filing Date
2023-08-30
Publication Date
2025-07-02

AI Technical Summary

Technical Problem

Existing reefer containers face challenges in maintaining cargo space while adjusting temperature inside the container for both cooling and warming operations, as adding warming devices inside narrows space and external systems require additional components.

Method used

A reefer container design with a circulation line, compressor, heat exchanger, expander, and warmed gas introduction line that uses internal gas as a heating medium, allowing temperature adjustment without fans and maintaining cargo space by external device placement.

Benefits of technology

The design maintains stable temperature control within the container while preserving cargo space by using internal gas circulation and external device placement, enabling both cooling and warming without reducing space.

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Abstract

A reefer container is configured to allow cooling of an internal gas corresponding to a gas inside a container body, and comprises: the container body; a circulation line having a suction port and a blowout port each provided inside the container body; a compressor configured to compress a circulating gas corresponding to the gas suctioned into the circulation line from inside the container body through the suction port; a heat exchanger configured to cool the circulating gas compressed by the compressor; an expander configured to expand the circulating gas cooled by the heat exchanger; and a warmed gas introduction line for extracting the circulating gas higher in temperature than the internal gas from between the compressor and the heat exchanger in the circulation line and guiding the extracted circulating gas to the container body.
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Citation Information

Patent Citations

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