Engine Fuctions TRIZ Cases

A segmented bolt and bore wrench kit pulls inlet guide vane pins through limited casing access, avoiding rotor disassembly.

Compare acceleration and deceleration pressure-speed curves to detect pneumatic bleed-off valve degradation without positional feedback.

This case uses thermal-stress feedback to adjust steam flow, accelerating gas turbine start-up without excessive steam turbine stress.

An environmental barrier and porous abradable layer help limit CMAS degradation and preserve rub performance in turbine blade seals.

This heat engine combines periodic detonation, water injection, a magnetic one-way valve, and NOx elimination for efficient operation.

This turbomachine heat exchanger slows inlet air and accelerates outlet flow to preserve aerothermal performance during oil cooling.

Titanium and Inconel 718 flanges use a matched interface flange to preserve engine joint fit and reduce vibration.

A structural pitch angle from asymmetric spar caps couples flapwise and edgewise bending, increasing damping in large rotor blades.

A bond layer and machinable seal layer on CMC mount arms improve turbine sealing while retaining high-temperature structural performance.

This case uses FADEC-controlled starter-motor rotation after shutdown to exhaust residual heat and limit rotor deformation.

This case shows how segmented radial vanes attenuate fan blade-pass noise while preserving airflow and thrust reverser compatibility.

A fixed and movable blade layout opens or closes a wind hole to manage headwind and backwind pressure for stable, efficient generation.

Matrix-based parameterization uses all rotor-blade sensor signals to calculate loads without precise alignment or individual calibration.

This gas turbine case uses a 3.2–4.0 gear ratio to shift work to the low spool while maintaining slower fan speed.

This airfoil circuit uses partitioned serpentine channels and crossover holes to distribute cooling and reduce stress concentrations.

This case uses modular pressure vessels in flooded mine depressions to expand storage while limiting landscape intervention and cost.

This gas turbine case uses forward and aft bearings around the epicyclic gear system to maintain alignment under operational loads.

Dedicated passages combine steam with air to cool turbine vanes while minimizing core-flowpath air bleeding.

This case addresses bending excitation in high-bypass engines through core proportions, CMCs, and precise shaft manufacturing.

Auxiliary beam plates and modular composite frames stabilize large wind turbine blades during assembly and transport.

High-pressure air cools aft rotor cavities through unobstructed passages.

A cooled cooling air system uses heat exchange to protect turbine components while supporting higher-temperature, higher-thrust operation.

An airfoil particle separator diverts contaminants from compressed bleed air, protecting bleed-off valves and pneumatic actuators.

The gearbox disengages during reverse torque, letting gears rotate freely and avoiding auxiliary lubrication hardware.

Cooled cooling air and heat exchangers temper compressor bleed air, enabling higher core temperatures while maintaining thrust output.

Segmented shafts, centering features, and a pyrotechnic release support controlled decoupling during gas turbine containment testing.

A casing-integrated cooling route reduces bleed losses and vane temperatures, enabling tighter turbine spacing and higher pressure ratios.

An airfoil particle separator removes contaminants from aircraft bleed air before they reach sensitive valves and actuators.

Staggered tubular meshes redistribute fuel flow for compact heat exchange.

Phosphoric acid and hydrogen fluoride etching removes EBC and oxide layers, preparing the bondcoat for a refreshed coating.

Segmented auxiliary and main containers use a gravity flow channel to contain nacelle spills without pumps or added power.

Offshore wave systems are costly to install and maintain; this float-and-counterweight mechanism converts low waves into rotational output.

Continuous abradable coating helps blade outer air seals resist heat and wear.

This wind turbine blade pitch case uses conical bearing preload, a backstop, and a pin to simplify yaw design and maintenance.

A PWM and integral-cycle heating circuit maintains heater temperature while reducing harmonics and electromagnetic emissions.

Aligned bores, threaded nuts, and double-end studs join blade segments while supporting flapwise and edgewise load transfer.

Automatic optical data coding transfers complete vacuum device diagnostics remotely, avoiding manual errors and special readout equipment.

This turbine rotor case uses a tapered groove, shim, and radial support to ease blade assembly and reduce stress and wear.

A heat exchanger vaporizes liquid hydrogen, cools compressed air, and supports expansion power recovery in a compact gas turbine.

During windmilling, a one-way clutch lets the turbine gearbox rotate freely, preventing bearing seizure without auxiliary lubrication.

This case shows how metal inserts contact conductive blade material to maintain electrical continuity and mitigate lightning flashovers.

A camera, targeted lighting, and image analysis inspect rotating propulsor blades for damage while supporting operational continuity.

A segmented front center body opens forward access while the gearbox is removed as a module without disturbing the bearing package.

A controlled pump and expansion vessel keep the heat-transfer fluid liquid while heating cryogenic fuel to gaseous or supercritical states.

Axial front-ring movement adjusts impeller blade pitch, supporting lower-wind energy capture with smaller blades for easier transport.

Four concentric rings vary throat and exit areas while preserving circular nozzle geometry.

Unequal inner and outer cooling passages keep the inner shroud near its assumed temperature and support turbine efficiency.

Flex mounts and couplings manage lateral, bending, and torsional loads to reduce gearbox stress, wear, and misalignment.

Intercooled exhaust recirculation cools turbine air without compressor bleed losses.

Sacrificial fibers and aligned ply channels improve cooling while reducing thermal stress and preserving CMC structural integrity.