Flight-Phase Load Offloading for Aircraft Engine Durability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Aircraft engines face significant stress and wear due to high energy demands during phases like take-off and climb, leading to premature degradation from high temperatures and loads, necessitating an efficient method to manage energy loads and reduce engine strain.
Innovation Solution
A system that identifies phases of flight to offload non-thrust loads, using a controller to prioritize and sequence the offloading of these loads, potentially reducing their operation or completely turning them off, and supplementing with auxiliary power sources, while managing interactions to minimize active loads and restore them as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the electrical generator operates at high power to meet energy demands during take-off and climb phases, then the aircraft's energy requirements are satisfied, but the engine experiences increased stress and wear leading to premature degradation
Solution Approach 1:
The patent extracts non-essential electrical loads from the engine-driven generator during critical flight phases. The controller identifies and offloads non-thrust consuming equipment (such as galley heating, passenger entertainment systems, and non-critical avionics) during take-off and climb phases, separating essential thrust generation from non-essential power consumption to reduce engine stress while maintaining essential operations
Solution Approach 2:
The system dynamically adjusts the operational status of electrical loads based on real-time flight phase detection. The controller continuously monitors flight parameters (altitude, speed, thrust setting) and dynamically switches non-essential loads on or off according to the current flight phase, optimizing the balance between power availability and engine protection without requiring manual intervention
2Reliability
If non-thrust loads are offloaded during critical flight phases, then engine wear is reduced and durability is enhanced, but the availability of electrical power for non-essential systems is reduced
Solution Approach 1:
The system implements periodic cycling of non-essential loads rather than complete permanent shutdown. During take-off and climb phases, non-essential loads are temporarily offloaded; during cruise and descent phases, these same loads are automatically restored. This periodic on/off action ensures engine protection during critical phases while maintaining full system availability during less critical phases
Solution Approach 2:
The controller pre-identifies and prioritizes non-essential loads before the critical flight phase begins, and pre-offloads them as the aircraft enters take-off or climb phases. This preliminary action ensures that when the engine is most stressed, the non-essential loads are already offloaded, preventing any disruption to essential systems while maximizing engine protection
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provided are embodiments for a system for offloading non-thrust loads. The system includes one or more thrust loads (230), and one or more non-thrust loads (240), and a controller (210) that is operably coupled to the one or more thrust loads and the one or more non-thrust loads. The controller (210) is configured to control the thrust loads and non-thrust loads, receive input from one or more sources, and identify a phase of flight based at least in part on the received input. The controller (210) is also configured to offload one or more non-thrust loads (240) during the phase of flight, and restore the one or more non-thrust loads (240). Also provided are embodiments for method for offloading non-thrust loads (240).