Engine Fuctions TRIZ Cases

An annular piston servomotor drives tidal turbine blades through full inversion, resolving mechanical wear from complex linkages.

Dynamic control system reduces power extraction during engine transients to increase compressor surge margin while maintaining cabin pressurization.

A ceramic shot peening method impacts gas turbine components to increase compressive residual stresses.

A turbomachine fan guide vane uses internal ducts to circulate heat transfer fluid for controlled thermal expansion.

Electric machines on multiple spools reduce fuel flow and maintain surge margin during deceleration.

Interconnected surface connectors retain coolant radial momentum to prevent film blow-off and enhance cooling effectiveness at high blowing ratios.

Segmented frame segments decouple movement from sealing, minimizing leakage and dynamic pulsations in turbine interfaces.

Segmenting electric machines reduces weight by distributing starting torque between a permanent magnet alternator and an electrical starter-generator.

A bowed rotor prevention system drives the starting spool to homogenize engine temperatures during shutdown.

Aft hook retainer redirects mechanical loads away from ceramic matrix composite seals to prevent structural damage.

A fuel heating system uses heated compressed air to rapidly melt ice crystals in gas turbine engine fuel lines.

An underwater turbine uses a self-drilling auger for seafloor anchoring and an adjustable rotor to capture tidal energy.

Lateral offset between airfoil and platform centers of mass balances centrifugal loads, reducing stress concentrations and combustion gas leakage.

Sub-3mm cooling apertures with less than 1 micrometer roughness reduce particulate accumulation in gas turbine engines, maintaining airflow efficiency.

Spring-loaded retainers apply radial bias forces to ceramic matrix composite shroud segments, accommodating thermal expansion mismatches with metallic carriers.

A turbine nozzle segment incorporates a pocket in the endwall back face to enhance stiffness distribution between vanes and endwalls.

A variable area fan nozzle adjusts flap positions to optimize engine operability across flight conditions.

Coupling mechanism compensates alignment errors and protects the gearbox from shaft current in semi-direct wind drive systems.

A turbine platform cavity formed by casting allows cooler air to flow through an open structure covered by a welded plate.

Segmented coupling shaft assembly transfers torque through slip joints and convolute stiffness to maintain gear alignment.

A turbocharger shaft seal uses a slinger element to centrifugally disperse lubricating oil toward a deflection means.

Integrating torque transfer flanges with balance rings eliminates heavy rivets, reducing engine weight while maintaining stability.

Integrating the nose lip and inner barrel into a single unit reduces airflow drag by positioning the split line near the stagnation point.

Waste heat recovery system separates core airflow at the turbine rear frame leading edge to capture high-temperature exhaust.

Ejector nozzle entrains compressed air to draw oil from bearing cavities during engine start or deceleration without increasing pump size.

A clutch system decouples the power turbine from the generator shaft to enable rapid electrical production restarts.

Segmented wall and skin circuits reduce cooling airflow requirements by 30-50% while improving thermal uniformity in turbine engines.

Ribs and flow scoops direct particles into tip dust holes, reducing sand accumulation and oxidation risks on turbine blades.

Merging cooling passages into one common flow reduces manufacturing complexity while maintaining component reliability.

A resilient fluid container compresses under wave action to drive fluid flow through an energy generating device.

A gas turbine blower driven by biogas replaces electric motors, recovering exhaust heat to cut operating costs by 80%.

Automated optical detection assesses toothed belt wear status to reduce physical inspection downtime for wind turbine maintenance.

Cooling channels deliver fluid through a slot on the squealer tip forward surface, reducing oxidation and erosion to maintain engine efficiency during service.

Sealed outflow housing prevents steam impingement on the turbine housing, reducing thermal load and temperature gradients.

A gas turbine storage engine removes the compressor section and adds a thrust bearing to handle shaft loads.

Plastic deformation of structural coating surfaces creates faceted grooves that reduce nozzle clogging risks while improving heat transfer efficiency.

Hexagonal spring elements expand laterally to prevent vulcanization damage, ensuring axial bearing reliability under high loads.

A power generation planning apparatus predicts turbine startup schedules by acquiring metal and ambient temperatures.

Chromium diffusion coatings exceeding 30% content protect turbine blades against hot gas corrosion and sulfidation in complex geometries.

A gas turbine engine uses bypass valves between stages to enable variable speed operation.

A turbine exhaust drain system uses combustion gas flow to create a venturi effect for automatic liquid removal.

A planetary gearbox uses multiple sun gears to distribute torque across planet stages.

An accumulative spring converts stepped rotations into uniform motion, addressing high energy loss and maintenance costs in wave converters.

Wavy spring clips and washers redistribute thermal expansion loads between ceramic matrix composite and metallic structures, controlling cooling air leakage.

A geared turbofan engine uses sensors to monitor fan rotor speed and turbine shaft position for real-time control adjustments.

A jet pump injects pressurized fluid into a rocket engine supply line to compensate for pressure drops caused by bends and prevent cavitation.

Ram air flap dynamics adjust inlet area to balance cooling effectiveness against aerodynamic drag in aircraft bleed air systems.

Projections on the thrust reverser door divert external fluids through the axial clearance, preventing contamination of sensitive engine areas.

Direct drive coupling eliminates inertial energy losses during startup, mitigating thermal bowing and reducing engine weight.