Engine Manufacture TRIZ Cases

A bonded cured fluoroelastomer patch with fibrous reinforcement repairs eroded jet engine cone coatings and helps prevent delamination.

A tapered locking member and fastener clamp a service tube against its mating part to resist vibration-driven loosening and oil leakage.

A rope holding unit anchors access lines on wind turbine blades so maintenance equipment can reach wear and lightning-damaged areas without cranes.

Opposed limit surfaces bound wastegate valve articulation to accommodate tolerances, prevent catching, and reduce wear in turbocharger control.

Rail-guided milling and alignment frames enable in situ blade tip extensions that raise wind turbine output with less downtime and cost.

Distributed turning devices support and rotate wind blade structural members, reducing crane interference and speeding inspection and processing.

A sun-ring-planet reduction gear offsets the propeller shaft from the turbine shaft, enabling larger propellers with lower engine bulk and weight.

A multi-stage epicyclic gear train lets the turbine run fast while keeping fan and compressor speeds below tip-speed limits in a compact aircraft turbomachine.

An axially tapered journal bearing groove improves lubricant distribution, limits cavitation, and protects the rotor-bearing interface.

A hollow ribbed connector relieves thermal expansion mismatch between CMC turbine rings and metal casings while maintaining installation stiffness.

An annular bolt and lock-nut bridge restrains bearing axial displacement in wind turbine drivetrains without costly precision-machined rings.

A cellular bushing supports a gas turbine conduit while permitting thermal movement, damping vibration, and preventing stress and rubbing.

A flexible adhesive limiting member contains bond-line adhesive to form a concave front surface, preventing notches and improving rotor blade joint durability.

Separate low-, intermediate-, and high-speed gearbox modules with flanged joints enable up-tower repair and inspection without removing the full turbine gearbox.

Coordinated UAVs and cranes share wind turbine component loads to cut manual handling, reduce safety risk, and improve assembly efficiency.

Multi-path machining varies shroud thickness by region to cut blade weight while preserving stress distribution, creep behavior, and strength.

Non-uniform drive pulsation shifts a boring bar away from resonant frequencies, improving surface finish and machining speed in dam maintenance.

Bulkheads guide and stabilize a wind turbine blade shear web without a gantry, while heated fluid speeds bonding and curing inside the mold.

Coordinated UAV and crane handling supports and positions wind turbine components, reducing manual crew needs and improving assembly safety.

Flexible cage and carrier connections balance torsion-driven pressure and sliding in aircraft reduction gears, reducing fretting and wear.

Selective auxiliary turbine and brake control splits rotor power paths to support smooth horizontal-to-vertical flight transitions.

Segmented bearing housing and drive shaft sections simplify wind turbine assembly and transport while preserving load capacity and lubrication cleanliness.

Structural guides keep a sled-style milling cutter axially aligned while machining inner casing slots faster and accurately for turbine testing.

A breakable fuse pin and stronger stop pins keep the gearbox connected under sudden loads while damping force and limiting damage.

Partitioned cooling cavities behind a CMC air seal use ridge-and-groove labyrinth sealing to cut gas leakage and tailor thermal management.

Inclined serrated teeth on turbine flow splitter edges cut broadband noise while limiting turbulence, aerodynamic losses, and mechanical stress.

Hydraulic pressure in the gearbox connection cavity pushes the main shaft free, simplifying wind turbine gearbox removal while limiting shaft damage.

A stepped cooling passage with smooth hole transition improves turbine blade cooling in high-heat areas while limiting stress concentration.

Multiple radially oriented gutter openings improve oil evacuation in turbine reduction gears, reducing clogging and oil return to the gearbox.

Concave axial-end pin shaping keeps the plain bearing gap and lubricating film more uniform under planet gear deformation.

A corrugated gear baffle absorbs axial variation in tight gearboxes to cut lubricant churning, drag, and installation difficulty.

Welded or brazed corrugated and smooth skins form nacelle heat-exchanger channels that cut rivet drag, mass, and aerodynamic loss.

Tapered pins and bores self-align wind turbine components, cutting connection count and simplifying assembly, disassembly, and maintenance.

Bulkheads attached to the shear web guide blade installation, prevent mold-closure shift, and remove the need for gantry fixtures.

Rounding blade-tip edges before galvanic coating prevents overhangs, reduces crack initiation, and improves vibrational fatigue strength.

Elongated hub slots let a wind turbine gearbox shaft connect to the generator rotor without precise bolt-hole alignment, easing assembly.

Guided trimming and datum transfer improve composite blade flange removal and surface processing while reducing manual skill dependence.

A rotating center-bearing tool automates circular bolt tightening on wind turbine flanges, improving precision, stability, and installation speed.

Infrared heating forms and brazes nacelle panel skins onto honeycomb cores faster, with lower thermal gradients and less cell damage.

Resilient members between guide vane bushings and the casing cut vibration, wear, and energy loss while accommodating thermal growth.

A flange-mounted lifter uses lever, pulley, or gas-pressure assist to position heavy clamping tools quickly across multiple bolted connections.

Segmented fin gaps let folded heat-exchanger layers bend to curved passages, increasing layer count while keeping conventional manufacturing.

A tip plenum fed by serpentine passages improves trailing-edge blade cooling and blocks hot gas backflow to extend turbine durability.

Adjustable adapters and couplings let rigid gas turbine tubes align with differently oriented ports in tight spaces while reducing installation stress.

Remote-operated measurement, excavation, and metal deposition repair turbine runner defects in confined spaces with less downtime and risk.

A tapered groove at the journal bearing outer side forms a cavity that stabilizes lubricant flow and reduces cavitation damage at the rotor interface.

Blade-spaced joining edges let Francis runner segments be welded externally, reducing assembly risk, cost, and transport difficulty.

Rotating the workpiece while shifting the laser axially enables uniform hardening of large roll and cone surfaces without gaps or trace marks.

Rear fuselage propulsion with boundary layer ingestion cuts thrust demand, nacelle drag, fuel burn, noise, and engine-out yaw.

A ring-gear-carried rotor layout avoids upstream sun gear space limits, improving turbomachine compatibility while keeping the AGB compact.

Segmenting the wind turbine rotor blade with a single-curved contour resolves the trade-off between joint strength and aerodynamic shape.

An inclined outer surface on the first pocket wall reduces material accumulation while improving mechanical stress distribution in turbomachine rotor blades.

Spaced side walls in a gas turbine duct allow independent thermal expansion, reducing hoop stress reinforcement needs and lowering manufacturing costs.

Brazed concentric shrouds align high-frequency and steady-state sensors at one location, eliminating data offsets from spatial separation.

Segmented axial turbine design reduces maintenance time while maintaining high energy conversion efficiency.

A replacement blade tip segment features an internal beam receiver section that aligns with the existing spar structure for secure integration.

An electric motor drives a clamping tool that secures large wind turbine blade tips. Current feedback controls the force, replacing complex hydraulic systems.

Auxiliary support tower positions nacelle while root end moving assembly guides blade root for hub connection.

Inclined cooling channels discharge fluid into retaining cavities to create a swirling vortex, mitigating rubbing impacts that block traditional holes.

Protuberant lobes in spanwise passageways manage thermal gradients to reduce differential expansion and extend component life.

A hybrid adapter piece joins concrete and steel wind turbine tower sections using a cast-in steel flange, reducing manufacturing complexity.

A hump feature near the airfoil leading edge alters flow passage geometry to influence fluid movement.

A mobile tilting frame pivots wind tower sections to a vertical position using gin poles and support cables.

A controller normalizes operating data to validate wind farm performance improvements across varying modes.

Integrally connected turbine blades resolve loosening issues under high mechanical stress.

Ball-joint retention devices allow the cooling housing to move relative to the outer casing, accommodating differential thermal expansion during takeoff.