A high-speed direct-drive motor-driven multi-stage compressor structure

CN224452993UActive Publication Date: 2026-07-03CHONGQING JIANGJIN TURBO & CHARGER MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING JIANGJIN TURBO & CHARGER MASCH CO LTD
Filing Date
2025-07-28
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing multistage compressors suffer from large size and high manufacturing cost. In particular, multistage compressors with high-speed direct-drive motors are difficult to reduce in size and cost due to the high heat generation of the rotor and windings and the difficulty in sealing.

Method used

The multi-stage compressor structure, driven by a high-speed direct-drive motor, includes an oil station, junction box, first and second high-speed motors, multiple compression components and cooling fans. Through multiple compression and cooling processes, the gas is cooled by an intake muffler and an aftercooler, reducing interstage connecting pipes and optimizing the gas flow path.

Benefits of technology

It improves energy efficiency, reduces the size of multi-stage compressors, lowers material costs, and achieves more efficient gas compression and cooling.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of compressor technology using high-speed direct-drive motors, specifically to a multi-stage compressor structure driven by a high-speed direct-drive motor. The structure includes an oil station and working components. The working components include a junction box, a first high-speed motor, a second high-speed motor, a first compressor, an intake muffler, a second compressor, a third compressor, a fourth compressor, and a main exhaust pipe. Both the first and second high-speed motors have two output terminals. When the first and second high-speed motors are started, air passes through the intake muffler and undergoes a first compression and cooling process in the first compressor. It then enters the second compressor for a second compression and cooling, is then delivered to the third compressor for a third compression and cooling, and finally to the fourth compressor for a fourth compression and cooling before being discharged through the main exhaust pipe. This achieves improved energy efficiency, reduced multi-stage compressor size, and lower material costs.
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