Engine Fuctions TRIZ Cases

A pitch control assembly uses dampening springs and masses to adjust air foil blade angles for vertical axis wind turbines.

Segmented cam track notches allow a single-stage hydraulic cylinder to raise the mast, replacing expensive multi-stage telescopic actuators.

Measuring pressure between the starter injector and hydraulic resistance detects clogging trends before fuel stagnation causes turbomachine downtime.

Welded end rings cover axial seams to prevent cracks from thermal stress and vibration.

An annular deflector washer mixes hot and cold air flows between turbine stages to mitigate thermal stresses and improve component durability.

Secondary air flow cools thrust reverser door pivots, reducing nacelle mass and cost by eliminating heavy high-temperature materials.

Welding a sacrificial sleeve to the support structure confines crack propagation, preventing breaches in the lubricant circulation system.

Sliding a perforated cover over a nacelle seal adjusts airflow overlap, managing heat dissipation while reducing seal wear.

A heat pipe transfers thermal energy from a turbine engine airfoil using a closed-loop internal fluid circuit, reducing the need for bleed air cooling.

Integrated detents eliminate complex lock wires, resolving sealing reliability versus device complexity in dense gas turbine engine inspections.

Variable gear ratios in aircraft generators manage wide input speed ranges while avoiding weight penalties and thermal transients from oversized units.

Segmented bearing sets eliminate un lubricated rotation during disengagement, reducing sealing complexity and component damage risk.

A wind turbine rotor blade heating system positions a temperature sensor near the blade root to monitor surface temperatures safely.

Recessed heli-hoist pad design optimizes load capacity and helicopter access for wind turbine nacelles.

Attachment block directs cooling air along the central web of a blade outer air seal to facilitate convection heat transfer.

A segmented refractory core uses a collapsible shell to accommodate metal shrinkage during cooling.

Hydraulic key transfer mechanisms lock access doors until the rotor is blocked, preventing unauthorized entry to dangerous regions during operation.

Withdrawing power via resistive torque slows the low-pressure compressor, preventing surge risks without frequent valve actuation.

A magnetic coupling assembly connects turbine and compressor shafts, thermally isolating sections to prevent generator demagnetization.

Merged flexible cage and anti-spray grid eliminate oil spray impact on stators, reducing thermal oxidation and heat exchanger size.

Segmenting the bell crank into two units reduces packaging volume while maintaining mechanical advantage in compact gas turbine engines.

A rotating valve within the generator shaft channels internal air to the atmosphere while blocking oil flow through centrifugal separation.

A turbine startup method adjusts inlet and exhaust valves to manage rotor stress levels.

Active variable cooling flow through a bypass duct adjusts turbine section temperatures via an electronically actuated metering valve.

Ejector mixes heated probe cooling inflow with ambient air to lower discharge temperature and velocity.

A gas turbine disc hub features a submerged groove for retaining ring expansion and cover plate securing.

A phase-change material absorbs heat from an electronic module, preventing fuel vaporization while protecting components.

Staggered pedestal arrays distribute centrifugal loads to reduce localized trailing edge stresses in gas turbine blades.

A debris separator forces cooling air through a circuitous path to remove particulates before reaching turbine components.

A steam turbine rotor blade and disk feature communicating balance holes that equalize pressure across the gap.

A monolithic diffuser ring integrates an air manifold to direct compressed air from the compressor section to a bearing housing.

Hydraulic transformer converts bi-directional fluid flow into uni-directional output for generator rotation.

Segmented inflatable bladders drive drum spool rotation via buoyancy, resolving the contradiction between high energy productivity and device complexity.

A steam turbine system adjusts mixed steam flow rates using an adjusting unit and control unit to manage pressure differentials.

Dynamically adjustable valves regulate fan bypass air flow to cool external components while minimizing thrust-specific fuel consumption penalties.

Deformation prevention members balance thermal expansion in a gas turbine vane carrier, preventing uneven deformation and resonance.

Stochastic rain field modeling calculates wind turbine blade coating fatigue life using smoothed particle hydrodynamics.

Calculating a speed ratio between opposing shafts detects shear events without placing probes in hot zones, improving reliability.

Inflatable blade elements pivot radially to match water flow direction, resolving adaptability versus complexity trade-offs.

Radial elongated turbulators boost convection to decelerate creep deformation while preserving engine efficiency.

A monolithic annular seal uses radially aligned legs to redirect axial flow away from bearing compartments.

Upper inlet placement uses cleaner air to cool equipment, preventing corrosion and reducing energy consumption.

A differential gearbox with a hydraulic controller regulates the angular velocity of an APU generator output shaft.

A wave power generation system uses hydraulic fluid pressure and an equalizer to manage tension transmission from floating objects.

An interference feature in the blade pocket obstructs incorrect seals, preventing installation errors and ensuring reliable retention during engine operation.