Efficient Propulsion Technologies TRIZ Cases

A translating cowl thrust reverser system uses segmented turning vanes to redirect exhaust airflow vertically away from the aircraft fuselage.

A stepped acoustic structure anchors septum caps at uniform depth while varying cell cross-sectional area to tune acoustic impedance.

Interdependent latch pins and cams constrain wing movement to enable folding transitions between flight and ground configurations.

Segmented airfoil modules accommodate thermal expansion via movable ring assemblies, reducing stress and strain on turbine components.

A thermal blanket integrates a fused silica glass window into its non-transparent portion to shield engine components from heat.

A turbofan thrust reverser uses a segmented cowl and vane arrangement to redirect airflow for reverse thrust.

Shoes and skirts on the fan case exterior wall support mobile thrust reversal sliders, reducing structural weight while maintaining rear edge stability.

Welding supply ducts to the engine inlet eliminates high-temperature seals, reducing assembly weight and maintenance time for aircraft engines.

A multi-stream nozzle merges a third bypass stream with the primary exhaust flow using a supersonic ejector to adjust effective area ratios.

Coaxial motor alignment eliminates tail rotor complexity while torque arm propellers hinge open for safe autorotation.

A mixer duct shell with a honeycomb core structure absorbs sound waves and dissipates heat from fan exhaust gases, reducing community disturbance.

External fluid fuel storage reduces onboard volume, increasing payload capacity while maintaining sustained thrust.

A thermal radiation shield blocks line of sight between hot and cold fluid flow paths in gas turbine engines.

Shroud support system with load spreading reduces stress concentrations in ceramic matrix composite segments.

Segmented male tool equipment with exchangeable modules reduces production time and costs while maintaining smooth external surface quality.

A composite housing flange assembly method uses a thermally-expandable mould unit to force material into recesses during curing.

A ceramic matrix composite shroud uses a C-shaped clip to constrain radial motion and secure the assembly.

A ring-shaped compliant support rotates via differential thermal expansion to redistribute stress across stationary gas turbine components.

A fuel delivery system calculates optimal biofuel blends to manage emission characteristics.

Power electronics regulate generator output based on rotation speed while a fuel pump delivers fuel proportional to ambient pressure.

An undulating web in a composite structural member increases shear load resistance while reducing fabrication costs compared to monolithic polymer designs.

Titanium reinforcing ring prevents delamination at the 90 degree elbow of fiber resin composite aircraft turbine engine air inlets.

A self-compressed air rotary turbine uses built-in thermal heaters to generate steam, boosting working fluid pressure and shaft power output.

A convertible wing assembly adjusts effective area via overlapping elements to balance lift and drag forces during flight transitions.

Embedded vertical thrusters provide VTOL lift while airfoils generate primary lift in forward flight, reducing energy consumption.

An airborne platform uses induction coils to remotely charge sensor batteries during flight operations.

Real-time fuel composition control minimizes contrail formation without adding engine weight or reducing specific energy.

Tapered piccolo tubes resolve non-uniform temperature distribution by compensating pressure drops along the nacelle inlet.

A segmented adapter ring connects a plug nozzle to a support structure using lugs and notches.

Variable pitch propellers damp parasitic oscillations and eliminate heavy power electronics.

A multi-layer coating system uses microspheres and infrared interaction layers to reduce substrate temperature.

Freewheeling belt pulleys decouple motor speed from the output shaft, eliminating heavy gearboxes and oil lubrication while maintaining redundancy.

Carrier aircraft uses a pivoting launch fixture and deployable capture line to release and recover a carried unmanned aircraft in confined spaces.

Composite flow variable detects partial clogging in rotary oven partitions, preventing explosions and ensuring consistent baking quality.

Segmented ceramic matrix composite ducts in a support structure reduce weight while resolving manufacturing and thermal expansion challenges.

Polymerizing composite panels in a closed mould to form an integral wing structure.

Electron beam welding joins machined annular sections to resolve the contradiction between structural integrity and manufacturing complexity.

Acoustic particle impact detection analyzes weather signatures to adjust compressor vanes and maintain aerodynamic efficiency during adverse conditions.

Hollow struts channel cooling air into the aft bearing cavity using a center-body cap pressure gradient.

Integrated shear pucks in composite fan cases distribute load to resolve complexity trade-offs during shipping and maintenance.

Flexible bellows sections absorb thermal expansion and mechanical stresses in aeronautical drain collectors, eliminating stress accumulation at interfaces.

A variable cycle gas turbine engine integrates an intercooling turbine section to modulate bypass airflow and temperature.

A rigid insert retainer maintains a flush tool surface, preventing pneumatic bladder deformation and flatness deviations in composite fuselage mandrels.

Heating a molding press softens the polymer matrix in a tubular fiber braid, reducing frictional forces that damage fibers during drawing.

A check valve assembly near the aircraft engine intake prevents backflow during clean air transitions, reducing momentum drag and improving engine performance.

A turbine fuel mixer blends deaerated water with liquid fuel to create a stable emulsion for gas turbine engines.

Embedded metallic inserts in molded composite bosses resolve the trade-off between weight reduction and fastening reliability.