Cycloidal Magnetic Gear Eccentric Rotor Design
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Solution Overview
Problem
Conventional gear systems in turbine systems, whether mechanical or magnetic, face issues such as wear, maintenance requirements, and operational downtime due to mechanical failure, which negatively impact the efficiency and reliability of turbine operations.
Innovation Solution
A cycloidal magnetic gear system is introduced, comprising stator and rotor magnet rings with orbital bearings, allowing the rotor to eccentrically rotate and transfer low-speed, high-torque input to a high-speed shaft, reducing maintenance needs and enhancing operational efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional mechanical interlocking gears are used, then speed increase and power transfer are achieved, but wear and mechanical failure occur requiring extensive maintenance
Solution Approach 1:
The patent replaces conventional mechanical interlocking gears with a magnetic gear system that uses magnetic fields for power transfer. The magnetic gear includes a stator with first and second magnet rings, and a rotor with rotor magnets, where magnetic attraction and repulsion forces transmit torque without mechanical contact, eliminating wear and mechanical failure associated with traditional gear systems
2Power
If conventional magnetic gears with multiple concentric magnet rings are used, then power transfer is achieved, but device complexity increases
Solution Approach 1:
The magnetic gear system is segmented into distinct functional components: a stator containing first and second magnet rings, and a rotor containing rotor magnets. This segmentation allows each component to be optimized independently and simplifies the overall structure compared to conventional designs that require multiple concentric magnet rings in a single casing
Solution Approach 2:
The patent transitions from a conventional radial flux magnetic gear design to an axial flux configuration where magnetic fields are generated in the axial direction rather than radially. This dimensional change allows for a simpler structure with separate stator and rotor assemblies that are easier to manufacture and maintain
3Speed
If mechanical gears are used, then speed increase is achieved, but extensive maintenance and shutdown time are required
Solution Approach 1:
By replacing mechanical gears with a magnetic gear system, the patent eliminates the need for extensive maintenance and shutdowns. The magnetic gear components have no mechanical contact, preventing wear and failure, thereby maintaining continuous operation and eliminating maintenance downtime associated with traditional mechanical gear systems
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The cycloidal magnetic gear system improves turbine operation by reducing maintenance requirements and increasing efficiency through the use of magnet rings and orbital bearings, enabling reliable high-speed rotation with reduced mechanical failure risks.
Implementation Method 1
a first rotor magnet ring affixed to the first side of the rotor. The first rotor magnet ring may be positioned adjacent the first stator magnet ring. Additionally, the system may include a second rotor magnet ring affixed to the second side of the rotor, where the second rotor magnet ring positioned adjacent the second stator magnet ring
Implementation Method 2
The rotor is coupled to a shaft and the rotor may be configured to rotate eccentrically about a center-axis of the first stator magnet ring, and the second stator magnet ring
Data Source
AI summary
A cycloidal magnetic gear system for a turbine system is disclosed. The system includes a first stator magnet ring, a second stator magnet ring positioned opposite the first stator magnet ring, and a rotor positioned between the first and second stator rings of magnets. The rotor may include a first side positioned adjacent the first stator magnet ring, and a second side positioned adjacent the second stator magnet ring. The system may include a first rotor magnet ring affixed to the first side of the rotor, adjacent the first stator magnet ring. Additionally, the system may include a second rotor magnet ring affixed to the second side of the rotor, adjacent the second stator magnet ring. The rotor may be configured to rotate eccentrically about a center-axis of the first and/or second stator magnet ring.