Two-Outlet Electromechanical Motor for Rotorcraft Blade Actuation
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Solution Overview
Problem
Existing devices for folding and deploying rotorcraft blades are either bulky and difficult to implement, or heavy with many mechanical parts, requiring two separate motors and transmissions which complicates maintenance and increases weight.
Innovation Solution
A two-outlet electromechanical motor with a stator and rotor, where the stator and rotor can rotate independently, allowing for two distinct transmissions to be actuated one after the other, using a braking system and disconnector means to control the motor's outlets, and a processor to manage the magnetic field and power distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two single-outlet motors are used to drive locking and folding mechanisms, then the functions are effective, but the device becomes bulky and difficult to implement
Solution Approach 1:
The patent combines two separate single-outlet motors into a single two-outlet motor that integrates both the locking mechanism outlet and the folding mechanism outlet into one unified actuator, reducing the number of separate motor units from two to one while maintaining both functions
Solution Approach 2:
The single two-outlet motor is designed to perform multiple functions by providing two independent outlets that can respectively drive the locking mechanism and the folding mechanism, making one motor unit universal for both operations
2Weight of moving object
If an interlock device with a single motor is used to control both mechanisms, then the weight is reduced, but the device becomes very difficult to develop with high weight due to large number of mechanical parts
Solution Approach 1:
The motor is segmented into two independent outlets within a single actuator, allowing each outlet to independently control one mechanism without requiring complex mechanical interconnections, thus reducing the number of mechanical parts while maintaining functional independence
Solution Approach 2:
The patent introduces a coupling mechanism as an intermediary that allows the single motor to drive two separate transmissions independently, mediating between the single motor source and the two separate mechanisms without requiring direct complex mechanical linkages
3Adaptability or versatility
If two separate transmissions are used for locking and folding, then the functions are independent, but the maintenance becomes more difficult and weight increases
Solution Approach 1:
By merging the two motor units into a single two-outlet motor housing, the patent consolidates the maintenance access point to one location rather than two separate motors, making maintenance easier while preserving the functional independence of the two transmissions through separate outlets
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 solution results in a compact, reliable, and easily maintainable system that can independently control locking and folding mechanisms, reducing weight and complexity while ensuring that mechanical issues in one transmission do not affect the other.
Implementation Method 1
the stator creates a magnetic field by means of its coil
Implementation Method 2
On being powered electrically, the stator creates magnetic field that causes the rotor to rotate
Implementation Method 3
The first disk is pressed against a main braking means by a first secondary braking means, thus preventing the rotor from turning
Data Source
AI summary
The present invention relates to an electromechanical motor (M) provided with an actuator (A) having an outer casing (30-30′-30″) surrounding a stator (20-20′) possessing a coil (24). The rotor (10) is also disposed inside the stator (20-20′). The invention is remarkable in that the actuator has two distinct and independent outlets (S1, S2) capable respectively of actuating, one after the other, first and second transmissions (C1, C2).