Power Installations TRIZ Cases
- Removable Aircraft APU Configuration for ETOPS Weight Reduction
A removable APU and lightweight rear cone let aircraft switch between ETOPS and standard flights to cut mass, energy use, and payload loss.
- Aircraft Environmental Control With Adiabatic Cooling for Fuel Cells
Adiabatic compression, heat exchange, and turbine expansion let one aircraft air system condition the cabin and cool fuel cell powertrain components.
- Aircraft Cryogenic Fuel Conditioning Using Fuel Cell Waste Heat
Waste heat from a fuel cell and turbomachine heats cryogenic aircraft fuel, cutting external heating needs and radiator drag.
- Hydraulic Power Coupling for Aircraft AC Generator Synchronization
Pressurized hydraulic coupling lets multiple aircraft engines drive one AC generator, avoiding complex electrical synchronization for large loads.
- Integrated Secondary Power Unit Control for Aircraft Engine Modes
A controller switches energy sources and outputs in an integrated secondary power unit to improve aircraft power and thermal management across engine modes.
- Hydrogen Fuel Purge Venting for Leak-Safe Aircraft Delivery Lines
Inert purge gas clears hydrogen from aircraft fuel lines and vents leaks externally to reduce ignition risk and improve handling stability.
- Aircraft Fuel Conditioning with Exhaust Heat and Cold-Start Bypass
Exhaust heat and a bypass conduit condition hydrogen fuel through phase change while avoiding cold starts, reducing APU weight and complexity.
- Free Turbine Turbogenerator With Single-Coupling Reversible Machine
A single reversible machine on the free turbine starts the gas generator, then switches to power generation with less weight and coupling complexity.
- Rotor Hub Oil Pump Channels for Multi-Pressure Feed
A swashplate hub pump replaces bulky slip rings by delivering tailored oil pressures and flow rates to rotating actuators and electronics.
- Fuel Cell Wastewater Ballast for Aircraft Center-of-Gravity Balance
Hydrogen consumption shifts aircraft balance; routing fuel-cell wastewater to ballast tanks counteracts the changing center of gravity.
- Aircraft Dihydrogen Pipe Aeration for Leak Dilution
A shared aeration inlet and movable bypass doors dilute and vent leaked dihydrogen in aircraft pipe embedding channels.