Turbo Engine Fluid Duct System for Stationary Thermal Management
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Solution Overview
Problem
Turbo engines, especially aircraft engines, face challenges in thermal management and ventilation when stationary, leading to potential overheating and fire hazards due to the accumulation of flammable vapors, as existing solutions like NACA intakes are complex and dependent on engine motion.
Innovation Solution
A fluid duct system that utilizes a pressure gradient to generate a fluid jet, which impinges on an impingement device, reducing thermal energy and providing cooling and ventilation to temperature-sensitive regions within the engine, even when stationary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If NACA intakes are used for thermal management and ventilation, then cooling effect is achieved during forward movement, but the system becomes ineffective when the engine is stationary and design complexity increases
Solution Approach 1:
The fluid duct system utilizes the engine's own operational parameters (pressure differences created during operation) to drive the cooling flow, eliminating the need for external power sources or complex mechanical intake systems. The system serves itself by using the pressure gradient naturally generated during engine operation to propel the cooling fluid through the ducts and onto temperature-sensitive components.
Solution Approach 2:
The invention changes the operating parameter from motion-dependent (NACA intakes requiring forward movement) to pressure-dependent (fluid duct system utilizing pressure gradients). By monitoring and responding to pressure differences between regions, the system adapts its cooling flow based on engine operational state without requiring physical motion of the engine assembly.
2Reliability
If NACA intakes are used for ventilation, then air flow is achieved during operation, but fire safety is compromised due to complex design and difficulty in evaluating fire-proof standards
Solution Approach 1:
The ventilation system uses the engine's operational pressure gradients to automatically drive air flow through the fluid ducts, eliminating the need for powered fans or complex mechanical ventilation systems. This self-driven approach reduces mechanical failure points and simplifies the system while maintaining effective ventilation during operation.
Solution Approach 2:
The invention employs pneumatic principles by using pressure-driven fluid flow through ducts to achieve ventilation and cooling. The system utilizes the pressure differential between different engine regions to propel the cooling/ventilating fluid, replacing complex mechanical intake systems with a simpler pressure-gradient-based fluid transport mechanism that is easier to design and certify for fire safety.
3Stability of the object's composition
If the engine operates in a motionless state, then stability is achieved, but thermal management fails leading to overheating and fire hazards
Solution Approach 1:
The fluid duct system is designed to respond dynamically to changing engine operational conditions by utilizing the pressure gradients that naturally arise during different operating states. The system transitions from being motion-dependent (NACA intakes) to pressure-responsive, allowing it to activate cooling flow based on the engine's thermal and pressure state rather than its physical motion.
Solution Approach 2:
The system uses the engine's own operational characteristics (pressure differences during operation) to drive the cooling flow, making the thermal management system self-activating based on engine state rather than requiring external control or motion. This self-service mechanism ensures cooling is provided whenever the engine operates, regardless of motion state.
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
Effectively cools and ventilates temperature-sensitive components, reducing the risk of overheating and fire hazards by using a fluid jet generated by a pressure gradient, independent of engine motion, and enhances fire safety by evacuating flammable vapors.
Implementation Method 1
at least during operation of the turbo engine a pressure gradient is present inside the at least one fluid duct element generating a fluid jet in the first region
Implementation Method 2
the fluid jet's thermal energy is at least partially reduced in order to use the thus at least partially cooler fluid jet for cooling and/or ventilating the first region
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
The invention in particular relates to a fluid duct system (S) for thermal management and/or ventilation of a first region (2a) containing at least one temperature sensitive target (8) within a turbo engine (1), characterized by at least one fluid duct element (4) connecting a second region (3a) with the first region (2a), said first region (2a) having a lower pressure than the second region (3a) at least during operation of the turbo engine (1) and being configured and combined with at least one impingement device (6), so that at least during operation of the turbo engine a pressure gradient is present inside the at least one fluid duct element (4) generating a fluid jet (5) in the first region (2a) that emerges from the at least one fluid duct element (4) towards the at least one impingement device (6) and said fluid jet (5) impinges at least partially on the at least one impingement device (6), where the fluid jet's thermal energy is at least partially reduced in order to use the thus cooler fluid jet (5) for cooling and/or ventilating the first region (2a).