Power Installations TRIZ Cases

A tapered housing design reduces overall height while maintaining sufficient volume for effective water collection in fuel cell systems.

A removable rear cone fuel tank mounts on the aircraft fuselage to store hydrogen for the fuel cell system.

A heat spreader transfers bypass diode thermal energy into adjacent solar cells to dissipate waste heat without adding external components.

A hybrid power system uses segmented gas generators to deliver high specific power for vertical flight modes.

Dynamic bleed port selection matches environmental control system pressure requirements to the lowest available source.

Segmented generator unit in inlet-fuselage space rotates via shaft to provide power without compromising aerodynamic flowpath or engine integration.

Elliptical shroud edges reduce stress concentrations while tuning resonance frequencies out of the operating range.

Electric motors drive main and tail gearboxes to maintain rotor rotation during engine failure, allowing safe landing without auto-rotation.

Differential hydraulic chamber diameters amplify actuation displacement to rotate toggle and release lock bolt, reducing weight and adjustment needs.

Controller uses fuel level sensors to shut down pumps before dry running causes overheating and ignition hazards.

A quick attach bracket uses a self-centering hub and retaining ridge for toolless installation on aircraft structures.

Auxiliary power unit recovers thermal energy via a Rankine cycle to generate electric, pneumatic, and hydraulic power.

Controller modulates starter air valve via feedback to maintain rotor speed below critical resonance, mitigating bowed rotor conditions.

An inflatable cushion fills the landing gear cavity to smooth airflow when the door opens.

A mechanical stow abort assembly uses a pawl and release lever to lock turbine blades until alignment is confirmed.

Electric machines transfer power between gas turbine spools to drive rotation, eliminating auxiliary power units and reducing aircraft weight.

Mechanical coupling between a ram air fan and cooling pumps transfers kinetic energy during flight, reducing energy loss from remote pump placement.

A method calculates maximum mechanical power capacity of an aircraft auxiliary power unit to optimize energy usage across various loads.

Superelastic connecting members enable passive winglet movement, eliminating heavy servo motors and reducing aircraft weight.

A segmented movable inlet door divides the airflow path to deflect ice accumulation while maintaining acoustic attenuation through an internal splitter.

Embedding structural batteries in fuselage walls eliminates separate battery weight while ambient airflow cools electrodes.

A local electrical ground plane consolidates current returns from coils and auxiliary contacts into a single common conductor.

Bidirectional power feeders eliminate dedicated lines, reducing aircraft weight while maintaining voltage stability.

Variable flowpath geometry bypasses the combustor during non-combustion modes, reducing turbine wear and carbon emissions.

A fuel cell assembly directs inerting airflow into an aircraft fuel tank interior to lower oxygen content without requiring significant external energy input.

A MAV base station segments processing and communication functions from micro air vehicles to extend operational range.

Fiber-optic multiplexing connects separated control modules to high-power electronics, reducing thermal stress and weight in aircraft systems.

A bipolar high-voltage network uses segmented DC converter modules to provide independent power paths for aircraft electrical systems.

Low-friction bearings protect turbine release cables from high torque loads, reducing stress and weight.

Segmented lever and spring mechanism blocks overpressure doors while preventing structural loads during maintenance.

Shear neck in parasitic drive isolates critical accessories from jam-induced torque spikes.

A manifold collects cabin discharge air while a throttle valve controls flow to the auxiliary power unit inlet.

A drone-based water sampling platform uses a level-wind reel to deploy equipment vertically for precise depth control.

Water jet cutting shapes a single sheet inlet duct screen to mount flush with aircraft skin, reducing drag from non-flush traditional designs.