Engine Manufacture TRIZ Cases

A guttered baffle channel redirects rotating oil outward and into the drain, improving compressor seal drainage and reducing leakage risk.

Sleeve-shaped two-piece pretensioning units preload rotor blade bolts with precise force, reducing friction losses and assembly time.

A nested washer and locking plate assembly stops tie rod-locking nut loosening under gas turbine vibration, improving fastening stability.

Segmented corrugated fins help a conformal heat exchanger follow annular curvature, increasing active layers with lower pressure drop and weight.

A two-stage epicyclic gear train lets the fan and compressor run at different speeds, improving turbine efficiency without enlarging the engine.

Aligned housing and coupling openings give access to hidden drivetrain fasteners, enabling maintenance without increasing coupling length.

A damaged rotor end plate is restored by machining out the crown section and fastening a replacement strip to preserve balance and flange integrity.

By driving on nut top surfaces instead of using electromagnets, this flange tightening robot cuts propulsion complexity, power demand, and cost.

EDM cooling holes placed in obstructed vane regions bring coolant closer to the leading edge and improve film adhesion in gas turbines.

Foldable sliding shovel mechanisms let one gripper securely lift and transport heavy wind turbine bolts across different magazine spacings.

A prefabricated blade tip with a matched connection interface lets wind turbine blade length change without rebuilding the main body mold.

Periodic reflection of skewed trip strips sustains flow mixing in long passages, limiting thermal saturation and preserving heat transfer.

Rolled thickness variation along a tower segment cuts circumferential joints, saves material, and improves wind turbine tower fatigue life.

A three-lobe butterfly valve cuts torque loading in compressor bleed control while preserving flow capacity and transient thermal efficiency.

A recycled high-speed abrasive medium polishes micro inner flow channels, removing burrs and residue while reducing medium replenishment delays.

Differential-pitch riblet grooves on a coated blade cut fluid resistance while limiting heat transfer to the base member.

A sealed fluid damping chamber built around a curved beam centering spring cuts axial space, eases machining, and improves gas turbine bearing vibration control.

Internal lubricant reservoirs and flexible struts keep gas turbine gear meshes lubricated, absorb vibration, and accommodate misalignment.

A blade-tip plenum feeds forward cooling apertures to cool the trailing edge, reduce oxidation, and resist hot-gas backflow.

Damaged end-plate crown sections are machined out and replaced with a crimped insert, preserving rotor strength and balance.

Segmented journal bearings with an optimized L/D ratio improve planetary gear support and lubrication in compact fan drive gear systems.

A three-lobe butterfly valve geometry cuts torque loading while preserving bleed flow capacity for more precise gas turbine control.

Hydraulic pressure through a gearbox shaft plug forces the main shaft from the connection cavity, simplifying wind turbine gearbox removal.

Rotatable cylindrical inserts in the blade core enable precise functional component alignment without destructive cut-outs, reducing mould cycle time.

Distinct fillet radii and a suction-side patch create a crack boundary in an integrally bladed rotor, improving stress distribution and reliability.

Periodic reflection of skewed trip strips in gas turbine flow passages prevents thermal saturation and sustains heat transfer with low pressure loss.

A carrier ridge cuts grooves into a backside abradable layer to split cooling cavities, improving turbine seal pressure control and reducing leakage.

A threaded adjustable joint lets gas turbine service tubes absorb tolerance stack-up and thermal expansion while reducing assembly stress and weight.

A partially inflatable blade enclosure creates a sealed work area for wind turbine maintenance, reducing transport burden and weather delays.

By redirecting mechanical drive power to aft fuselage fans, this aircraft propulsion layout ingests boundary layer flow to cut fuel burn and noise.

Selective infrared or laser heating joins nacelle panel skins to cellular cores faster, with better temperature control and less deformation.

Convergent dovetail insertion creates gradual shroud interference in rotor blades, simplifying assembly while withstanding high centrifugal loads.

Convergent dovetail insertion builds shroud interference during rotor blade assembly, simplifying tooling while maintaining contact at high speed.

An annular bolt-and-lock-nut bridge stops bearing axial displacement under high loads while avoiding costly precision rings and threads.

A collet puller extracts stuck wind turbine brake pistons without cutting, reducing removal time and maintenance cost.

Segmented arc reinforcement strengthens the outer pitch bearing ring to resist wind-load cracking and extend service life without blade removal.

Frustoconical shoulder and seat faces clamp a locking member to stop service tube loosening, helping prevent oil leakage under vibration and thermal loads.

Runner segments place joining edges away from blades, enabling external robotic narrow-gap welding to cut build time, transport burden, and safety risks.

A shaft-mounted phonic wheel with circumferential apertures works with an overlapping lubricant scoop to improve speed sensing and oil distribution.

A cellular bushing supports a gas turbine conduit while absorbing vibration and allowing thermal case movement to prevent rubbing.

A threaded telescopic joint lets gas turbine service tubes absorb tolerance stack-up and thermal expansion while reducing installation stress.

An inseparable plain bearing bonded to a ring element simplifies nacelle rotor bearings while improving reliability, assembly, and service life.

An inward-facing U-shaped sealing flange keeps lateral arms separated during brazing, simplifying honeycomb panel assembly and preventing collapse.

Structured AlCr and AlCrO PVD coatings create sharkskin-like blade surfaces that cut turbulence while improving oxidation and erosion resistance.

A corrugated bushing shares load with a damping member to absorb engine vibration and reduce harmful loads transferred to the gearbox.

A PTFE composite liner lets segmented wind turbine blade joints handle dithering and sliding without relubrication or unsafe inspection.

Integrated flange connections, roof, and hoisting platform cut nacelle weight and parts while improving lightning protection and maintenance access.

Push fasteners with flexible barbs secure an airfoil cover panel to a metal body, reducing rib weight while preserving structural strength.

A crossover gear set and integrated axial housing drive accessories at different speeds while cutting gearbox weight, size, and flange complexity.

Radial pushers and an extending shaft realign ovalized flange holes, speeding wind turbine tower assembly and reducing crane time.

Segmented spline seals with impingement baffles cool high-temperature turbine components via directed airflow, preventing oxidation and leakage losses.

A variable conical fillet at the turbine blade tip shroud intersection streamlines gas flow while maintaining structural integrity.

Bifurcated ribs extend to channel ends to distribute thermal stress, preventing ceramic core breakage during investment casting.

A corrugated sealing member attaches to wind turbine blade sections, accommodating differential expansion while maintaining a tight seal.

Segmented impingement rib and turbulators in peanut cavity boost heat transfer while easing manufacturing constraints.

Internal separator structures divide acoustic cavities into tailored fluid volumes to attenuate broadband noise across wider frequency ranges.

Segmented fairing sections couple at specific regions to cover connection gaps, reducing corrosion while maintaining aerodynamic shape.

Non-orthogonal shear webs mitigate shear distortion without adding weight or cost.

Reorienting the generator radially reduces axial length and weight while improving maintenance access.

Circumferential channel depth variation directs residual fuel to the lowest point, eliminating entrapment during storage and transport.

Segmented non-rotatable vanes replace complex rotating mechanisms, enabling precise pitch and roll control at low velocities without reducing thrust efficiency.

Merging the thrust reversing assembly into the fan case reduces pylon axial span, structural loads, and weight.

Segmented wind turbine blade extensions inhibit longitudinal load transmission between segments to reduce material strain at the trailing edge.

Cartesian coordinate values define a scalable airfoil profile that resolves aerodynamic inefficiencies in gas turbines.

Articulated blade segments fold flat for ground assembly and lock into curved operational shapes via hydraulic control.

Self-climbing mechanisms on a rigid frame elevate wind generator towers without complex guiding elements that damage concrete subsections.

Intersecting ribs create common outlet channels that increase channel height and reduce clogging risks from foreign particles in turbomachine cooling systems.

Segmented top and ground elements with winches lift wind turbine blades, eliminating heavy crane logistics.

Segmented scroll casing reduces inner wall roughness to minimize exhaust gas pressure loss, avoiding full-surface treatments that increase manufacturing costs.

Flexible fuel pipes extend sinusoidally around the combustion chamber casing to interconnect injectors via cross-piece connectors.

Lifting tools shift tensioned clamping elements laterally to enable maintenance access without releasing structural stress.

Radial cooling channels distribute along turbine airfoil trailing edges to enhance heat transfer efficiency.

Masking film guides sealant into a tapered joint, preventing unevenness from aerodynamic forces and dust contamination during curing.

Segmented arms with load sensors provide active feedback control for precise dent repair, resolving installation difficulties and inadequate mechanical support.

Variable area air turbine extracts work from high-temperature bleed air, reducing cooling requirements and improving engine efficiency.

A curved comb with spaced teeth supports pleated filter media, preventing collapse under air pressure while maintaining airflow.

A self-aligning foil bearing system uses a movable crown to realign with the rotor axis.

Flexible spring blades connect the stiffener ring to the turbine case, accommodating thermal expansion and reducing vibration.

Three-parameter axial dampers provide broadband vibration attenuation across multiple rotor critical modes in gas turbine engines.

Mathematical forecasting of acceleration data enables safe mounting decisions without complex active crane tracking systems.

Tripod and single link mounts accommodate thermal expansion between composite fan cases and metal tanks while maintaining secure positioning.

Segmented foundation sections connect via tensioning elements that guide assembly, eliminating heavy lift crane requirements.

Modular tower assembly uses a tapered upper section to adjust hub height, optimizing energy production while reducing material costs.

Silicon metal coating on ceramic matrix composite seal segments provides precise dimensional control and smooth sealing surfaces.

A gear reduction system drives the fan and compressor rotors independently, managing stress and temperature at the downstream compressor rotor.

Variable-pitch blades in a radial turbine nozzle regulate gas flow, reducing specific fuel consumption at partial load.

A resin seal body fitted with a metallic spring presses against the drive shaft, preventing exhaust gas leakage between the shaft and bush.

Integral aft sealing ribs on a gas turbine stator vane reduce friction and damage from thermal expansion while maintaining effective sealing.

An intake assembly integrates a heat exchanger across the air conduit to cool airflow, resolving volume constraints while maintaining engine power.

Segmented guide rails span tower wall openings to move complete transformers, avoiding efficiency losses from field reassembly.

Segmenting the tip cavity with a separator wall redirects leaked fluid at the trailing edge, reducing aerodynamic losses from over tip leakage.

Curved fluid passages redirect flow between oblique surfaces, reducing stress concentrations at plenum intersections to enable lighter materials.

Sliding plate valve regulates airflow between secondary and primary paths to resolve engine performance versus control precision trade-offs.

A movable hole seal member adapts its position relative to a gas turbine strut, maintaining cooling air channel sealing despite thermal expansion.

Wave-shaped turbine blade leading edges optimize exhaust gas flow interaction to enhance energy conversion efficiency in turbocharger systems.

Strategic film cooling hole placement creates a protective boundary layer that shields the substrate from hot combustion gases while managing device complexity.

Partial ceramic coating on a blade outer air seal leaves a bare area for axial cooling passages, reducing thermal mechanical fatigue at the rub zone.

An asymmetric tip shroud design with unequal pressure and suction side surface areas manages fluid flow in turbomachines.