Floating-Bearing Generator for Low-Friction Variable-Frequency Output
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Solution Overview
Problem
Existing generators face challenges such as mechanical connections that suffer from friction losses, complex gearbox arrangements due to frequency requirements, difficulty in adapting to different phases or frequencies, and maintenance issues with brushes and slip rings.
Innovation Solution
A generator design featuring a rotor with bridging elements and inductance units that rotate relative to a stationary inductance unit holder, utilizing a floating bearing mechanism to minimize friction and allow for easy modification to produce various voltage types, eliminating the need for mechanical power transfer and reducing maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If mechanical connections like axles are used to transfer rotational power from the rotor to the generator, then power transmission is achieved, but friction losses increase
Solution Approach 1:
The patent extracts and eliminates the mechanical connection components (axles, gearboxes, brushes, slip rings) from the system. The rotor rotates independently without mechanical power transfer to a separate generator, removing the source of friction losses while simplifying the overall device structure.
Solution Approach 2:
The patent merges the generator components directly onto the rotor, integrating the magnetic flux generation and electrical power generation functions into a single rotating assembly. This eliminates the need for separate mechanical power transfer mechanisms and reduces frictional energy losses.
2Productivity
If the generator is designed to rotate at a specifically set frequency to match power supply requirements, then electricity generation efficiency is improved, but the device complexity increases due to gearbox arrangements
Solution Approach 1:
The patent employs a floating bearing mechanism that allows the rotor to rotate freely at variable speeds determined by the fluid flow rate, rather than constraining it to a fixed frequency. This dynamic adaptation eliminates the need for complex gearbox arrangements while maintaining efficient electricity generation across varying operating conditions.
Solution Approach 2:
The system allows the rotation frequency to vary as a parameter based on fluid flow conditions. By changing the operational parameter (rotation speed) rather than fixing it, the generator adapts to different flow rates without requiring mechanical speed adjustment mechanisms like gearboxes.
3Reliability
If brushes and slip rings are used to transfer current to or from the rotor, then electrical connection is achieved, but maintenance requirements increase due to wear
Solution Approach 1:
The patent removes brushes and slip rings from the system by integrating the inductance units directly onto the rotor. Current is generated and taken out through the fluid coupling mechanism, eliminating the wear-prone electrical contact components and reducing maintenance requirements.
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 design achieves low frictional losses, simplifies frequency adaptation, and reduces maintenance requirements, enabling efficient and flexible electricity generation with minimal mechanical parts.
Implementation Method 1
The rotor is arranged to rotate relative to the flow channel unit in a floating bearing manner
Implementation Method 2
the at least one bridging element arranged to induce an alternating and pulsed voltage to the at least one inductance coil in response to the rotation of the bridging element relative to the inductance unit
Data Source
AI summary
A generator and a related method are disclosed. The generator includes at least one rotor, at least one bridging element arranged to rotate about a rotation axis (X) of the rotor, an inductance unit holder, the inductance unit holder including at least one inductance unit, the inductance unit including at least one inductance coil, and a core, the at least one bridging element arranged to induce an alternating and pulsed voltage to the at least one inductance coil, the generator including at least one flow channel unit arranged to convey a fluid flow to the rotor. The rotor is arranged to rotate relative to the flow channel unit in a floating bearing manner, with a rotation frequency.