Annular-Housing Electric Motor With Modular Propeller Blade Mounts
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Solution Overview
Problem
Conventional electric motors for aircraft propulsion require improved mounting and modular propeller configurations that facilitate easy replacement and reconfiguration, while maintaining efficient power transmission and control.
Innovation Solution
An electric motor system with a rotating annular housing functioning as a rotor, mounted on an axially positioned shaft acting as a stator, allows for secure engagement to aircraft structures using mounting hubs on opposite ends, enabling modular propeller assemblies with interchangeable blades and adjustable pitch systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional electric motors are used with traditional mounting configurations, then power transmission efficiency is maintained, but mounting security and ease of replacement are insufficient
Solution Approach 1:
The motor assembly is segmented into modular components with standardized mounting interfaces. The motor housing includes integrated mounting hubs with flanged ends that can be independently attached to aircraft structures, allowing the motor to be replaced without removing the entire propulsion system. This segmentation enables easy maintenance while maintaining secure mounting through dedicated attachment points.
2Adaptability or versatility
If modular propeller configurations are implemented, then reconfiguration flexibility is improved, but device complexity increases
Solution Approach 1:
The motor housing serves multiple functions: it contains the motor components, provides structural support, and acts as a mounting interface for propellers through integrated hubs. The standardized flanged ends and mounting interfaces create universal connection points that work with various propeller configurations. This multi-functionality enables reconfiguration flexibility without adding separate complex mounting mechanisms.
3Reliability
If mounting hubs are positioned on opposite ends of the shaft, then mounting security is enhanced, but device complexity increases
Solution Approach 1:
The mounting hubs are merged with the motor housing structure itself, with flanged ends formed as integral portions of the housing. This integration eliminates the need for separate mounting brackets or additional fastening mechanisms. The hubs are positioned on opposite ends of the shaft to provide balanced support and secure mounting, while the merging of functions keeps the device complexity manageable.
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
Facilitates easy replacement and reconfiguration of propellers, enhances mounting security, and maintains efficient power transmission and control, suitable for aircraft propulsion systems.
Implementation Method 1
They convert electric current into rotational motion... The operation and structure internally of electric motors to generate magnetic fields from electricity to thereby generate powered rotation of a rotor is well known in the art
Implementation Method 2
A magnetic field is created in its stator. The field attracts and repels magnets on the rotor which causes the rotor to rotate... a rotating magnetic field can be created. These rotating magnetic fields interact with the magnetic fields of the magnets to create a torque on the armature
Data Source
AI summary
An electric motor system for powering a propeller has a central shaft engageable to a mount on an aircraft around which an annular housing rotates. The annular housing is engaged with propeller blades using blade mounts connected to the annular housing directly or upon brackets. The brackets are removably engageable with the annular housing to provide for change or repair of propeller blades.