Turbo compressor

The turbo compressor design with a buffer and multiple cooling passages addresses refrigerant phase change issues, preventing liquid entry and reducing heat and resistance, ensuring smooth operation and extended bearing life.

WO2026127254A1 Publication Date: 2026-06-18LG ELECTRONICS INC

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
LG ELECTRONICS INC
Filing Date
2025-07-23
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

Existing turbo compressors face issues with refrigerant phase change causing damage to bearings due to direct supply, leading to flow path blockage and increased viscosity, resulting in heat generation and flow resistance.

Method used

A turbo compressor design featuring a buffer with a larger cross-sectional area than the inlet, followed by multiple cooling passages and buffers to vaporize refrigerant, preventing liquid refrigerant entry and minimizing heat generation and flow resistance.

🎯Benefits of technology

Prevents liquid refrigerant from entering bearings, reduces heat generation, and minimizes flow resistance, ensuring smooth operation and extended bearing life.

✦ Generated by Eureka AI based on patent content.

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Abstract

A turbo compressor is disclosed. The turbo compressor may include a housing, a rotary shaft, a bearing, a cooling flow path, and a buffer. A portion of refrigerant condensed by a condenser may be introduced through the inlet of the housing. The cooling flow path may be provided inside the housing, and may supply the refrigerant introduced through the inlet to a bearing. The buffer may communicate with the inlet, and may induce a phase change of the refrigerant introduced through the inlet. Accordingly, the buffer may prevent the inflow of liquid refrigerant from flowing thereinto.
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