COMPRESSOR DEVICE AND REFRIGERATION UNIT

DE602022026648T2Active Publication Date: 2025-12-10DAIKIN INDUSTRIES LTD
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Patent Information

Application Number
DE602022026648
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-03-16
Filing Date
2022-03-03
Publication Date
2025-12-10
Estimated Expiration
2042-03-03

AI Technical Summary

Technical Problem

In compressor devices with multiple compressors operating at different suction and discharge pressures, the high-stage compressor experiences a larger discharge of lubricant, leading to a potential shortage of lubricant.

Method used

A compressor device with a two-stage compression system using carbon dioxide as refrigerant, incorporating oil discharge and return mechanisms to balance lubricant distribution across compressors, including oil separators and coolers to manage lubricant levels.

Benefits of technology

The solution effectively reduces lubricant discharge from the high-stage compressor, maintaining adequate lubrication levels and enhancing the efficiency and reliability of the refrigeration apparatus.

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