Aircraft Blocking Unit With Locking Means for Power-Loss Fixation
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Solution Overview
Problem
Existing electromechanical units in aircraft face challenges with increased complexity, weight, and reduced precision due to mechanical overload clutches, brakes, or dampers, leading to inefficiencies and increased drag or reduced lift in the event of power or signal loss.
Innovation Solution
A blocking unit with locking means that prevents movement when in a blocking position and allows movement when in a movement position, utilizing frictional engagement and form fit, without requiring power or signal supply, and can be activated in specific ranges to counteract external loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical overload clutches, brakes, or dampers are used in electromechanical units, then the system can be fixed in the event of power or signal loss, but the device complexity, weight, and installation space increase significantly
Solution Approach 1:
The patent extracts the blocking function from complex mechanical overload clutches, brakes, or dampers and implements it through a simplified blocking unit with blocking means and locking means. The blocking means can assume a blocking position and a movement position, while the locking means prevent the blocking means from blocking movement when in the movement position. This extraction reduces device complexity while maintaining the essential fixation capability.
Solution Approach 2:
The patent replaces complex mechanical overload protection systems with a simplified blocking unit that uses a blocking means and locking means mechanism. The locking means are arranged and designed such that they prevent the blocking means from blocking the movement of the component when the component is in a movement position, and do not prevent blocking when the component is in a blocking position. This substitution reduces mechanical complexity while maintaining reliability.
2Reliability
If mechanical overload clutches, brakes, or dampers are used in electromechanical units, then the system can be fixed in the event of power or signal loss, but the weight and installation space increase
Solution Approach 1:
The patent extracts only the essential blocking function from heavy mechanical overload systems, implementing it through a lightweight blocking unit with blocking means and locking means. This extraction eliminates unnecessary mechanical components, reducing weight while maintaining the fixation capability needed for safety.
Solution Approach 2:
The blocking unit implements blocking functionality locally and selectively through the blocking means and locking means, rather than using a comprehensive mechanical overload system throughout the electromechanical unit. The locking means are specifically arranged to prevent blocking only when the component is in the movement position, providing localized quality that reduces overall weight.
3Reliability
If a brake fixes the system without signal or power supply, then the system is secured, but unnecessary drag increases and lift is reduced
Solution Approach 1:
The blocking means are designed to dynamically assume either a blocking position or a movement position based on system conditions. The locking means dynamically prevent blocking when the component is in the movement position, allowing the system to adapt between secured and operational states. This dynamic behavior eliminates constant drag while maintaining security when needed.
Solution Approach 2:
The blocking unit operates periodically or conditionally rather than continuously. The blocking means assume the blocking position only when necessary for security, and the locking means periodically prevent blocking during movement positions. This periodic action eliminates continuous harmful drag while maintaining system security when required.
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 blocking unit reduces complexity, weight, and installation space while maintaining precise control, preventing unnecessary drag and ensuring safe positioning of components even in power or signal loss scenarios.
Implementation Method 1
utilizing frictional engagement and form fit
Implementation Method 2
utilizing frictional engagement and form fit
Data Source
AI summary
The present disclosure relates to a blocking unit for a component of an aircraft movable by at least one movement means, wherein the component can assume at least one blocking position and at least one movement position, wherein the blocking unit comprises blocking means, wherein the blocking means are arranged and designed to block a movement of the component when a blocking condition is fulfilled, wherein the blocking unit has locking means, wherein the locking means are arranged and designed such that the blocking means are prevented from blocking the movement of the component when the component is in a movement position, and wherein the locking means are arranged and designed such that the blocking means are not prevented from blocking the movement of the component when the component is in a blocking position.