Rotor structure for oilfield generator

CN224342983UActive Publication Date: 2026-06-09WUXI FARADAY ALTERNATORS
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI FARADAY ALTERNATORS
Filing Date
2025-05-27
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing oilfield generators suffer from insufficient heat dissipation under high temperature and high load conditions, leading to aging of winding insulation and shortened lifespan. Furthermore, single-bearing-supported fans are prone to failure under high load impacts and have unstable dynamic balance, making it difficult to meet the heat dissipation requirements of oilfield drilling rigs.

Method used

It adopts a dual-bearing, dual-fan rotor structure, combining centrifugal and axial fans to provide radial and axial airflow, achieving efficient and uniform heat dissipation, and improving rotor stability through rotating rectifier components and balance rings.

Benefits of technology

This achieves more efficient heat dissipation, improves the power density and rotor structure stability of the generator, and extends the service life of the generator.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224342983U_ABST
    Figure CN224342983U_ABST
Patent Text Reader

Abstract

This utility model relates to a rotor structure for an oilfield generator, characterized by comprising a shaft, a drive-end bearing, a centrifugal fan, a main rotor, an axial fan, a non-drive-end bearing, an excitation rotor, an excitation rotor sleeve, and an auxiliary exciter rotor assembly arranged sequentially from the drive end to the non-drive end on the shaft. A rotating rectifier mounting plate presses the rotating rectifier assembly onto the non-drive end of the shaft. Main rotor balance rings are provided at both ends of the main rotor. The centrifugal fan is connected to the shaft via a fan mount and a pressure plate. The axial fan includes a fan sleeve and seven helical blades, with the fan sleeve connected to the shaft. This utility model features a simple and compact structure, employing a dual-bearing, dual-fan rotor to achieve more efficient and uniform heat dissipation, improve generator power density, and increase rotor structural stability.
Need to check novelty before this filing date? Find Prior Art