Engine Manufacture TRIZ Cases

Pivoting shutter elements vary exhaust nozzle area to improve gas turbine performance while limiting airflow disturbance and turbulence.

A thermally sprayed bronze edge on a steel rotor blade reduces impeller-ring wear while preserving tight clearances and hydraulic efficiency.

An offset rib in the rotor blade cooling circuit targets the airfoil-platform junction to lower stress and strain while maintaining cooling.

Stacked plate members frictionally engage inside a turbine blade or nozzle opening to damp vibration and extend component life.

A convex, inward-extending nozzle ring adds material in the core gap region, enabling small radial turbine blades and better exhaust flow.

Alternating protruding and recessed RTM mold sectors prevent fiber pinching and sector-gap blisters while maintaining preform compaction.

A weight-assisted drive track lets blade-repair robots passively realign on curved leading edges for more accurate coating application.

Sensor-guided counter-torque helps release a wind turbine rotor lock while preventing wrong-direction loading that can damage bearings.

An arced rib and baffle turn a D-shaped leading-edge cavity into a uniform cooling gap for more effective impingement cooling.

Electric-pulse casting and controlled rolling create corrugated grain boundaries that help wind turbine main shaft steel resist fatigue.

A segmented tip flag channel boosts low-flow last-passage heat transfer and lowers gas turbine airfoil tip temperature.

A geared fan and tuned compression blade ratios balance propulsive efficiency, compact engine layout, rotor bow risk, and maintenance needs.

A three-stream turbofan splits airflow with primary and secondary fans to raise thrust while easing packaging, weight, and thermal demands.

A third airflow path with primary and secondary fans raises thrust without proportional fan diameter growth, easing weight and installation constraints.

A secondary fan adds a third stream to raise thrust without larger fan diameter, easing nacelle weight and thermal constraints.

Periodic hot and cold wall passages guide helical cooling air flow to cut turbine blade thermal gradients and reduce stress.

Male and female guide elements align a heavy pylon barrel to its base remotely, protecting fixing elements and improving operator safety.

Integrated connector and heating layers let wind turbine blades target heat where icing is worst, cutting system complexity and fatigue loads.

An oblique heat exchanger in the turbofan bypass duct improves cooling capacity while reducing drag, energy loss, and fuel burn.

A full-hoop carrier and control ring manage thermal growth between the carrier and blade outer air seal to limit leakage and tip contact.

Blind-hole pin mounting and local blade thickening cut rotor joint weight and material use while keeping wind turbine blade-hub strength.

A visible axial locator tab lets engineers verify seal member placement in a gas turbine rotor stage, improving assembly accuracy and speed.

Acid and base treatment converts the blade resin surface for low-temperature wind turbine blade repair with less downtime and equipment.

A variable rim width profile shifts material to the blade root, cutting rotor weight while maintaining attachment strength and speed capacity.

Stacked fibre preforms replace rigid pultrusion laminates to cut resin pools and wrinkles while integrating the spar cap into the blade shell.

A tower-mounted telescopic arm enables automated wind turbine blade maintenance without multi-point anchoring, improving stability in offshore crosswinds.

A chemically inert mould inlay forms a sharp composite edge that reinforces wind blade spar caps without changing geometry or hindering demoulding.

Inclined tongue inner edges in a turbocharger turbine housing weaken scroll-path vortices, reducing blade noise and rotation fluctuation.

Grooved blade shell elements flex during assembly to close mating gaps, improving surface smoothness, energy yield, and blade life.

Dual rollers apply continuous, uniform pressure to bond panels on curved wind turbine blades faster and more consistently than C-clamps.

An under-nacelle platform mounts the lifting device to the main frame, avoiding bolted-joint loosening, tower damage, and blocked nacelle space.

Internal heating in aircraft refrigerant ducts activates at low flow to prevent freezing while preserving smooth nacelle aerodynamics.

A control ring within a segmented carrier manages thermal growth mismatch to limit blade tip leakage and contact during engine power changes.

Oblique locking walls and a locking plate damp turbine blade vibration and hold outer platforms in position despite low CMC expansion.

An embedded resistive element powered through the blade shell enables faster thermal welding of blade components without adhesive weight or curing delays.

Alternating hot and cold wall helical passages improve turbine blade cooling, reducing thermal gradients and stress across the blade.

Interleaved pre-cured and pre-preg layers fill bond gaps at blade module interfaces, improving spar cap alignment and load transfer.

Ground winches, blade-mounted pulleys, and a nacelle load-bearing mechanism lift or lower turbine blades without multiple cranes or extra hub space.

Pivoting shutter elements vary exhaust nozzle area in a gas turbine engine while using curved surfaces to limit airflow disturbance.

A rotatable crane base deploys from a container-sized nacelle service unit to transfer heavy lifting loads directly into the main base frame.