Engine Manufacture TRIZ Cases

Longitudinal flange pairs replace butt seams and T-joints in wind turbine tower sections, cutting welding work and avoiding RT and UT inspection.

Radial boss nozzles project oil closer to the sun gear despite centrifugal force while simplifying planetary carrier assembly.

A hollow flanged shaft connector replaces shrink discs to cut drive train weight and length while avoiding assembly damage and easing maintenance.

Gap scanning around annular flanges identifies where to tighten first, helping close irregular tower-joint gaps and equalize bolt pretension.

Pivoting blades on a translating slider replace heavy thrust-reverser doors, cutting nacelle mass while reliably redirecting bypass flow.

Concave portions on tapered thrust bearing lands cut effective contact area, lowering mechanical loss without changing contour geometry.

A flange-mounted adapter turns existing wind turbine nuts into sling anchorage points without loosening bolts or lifting hydraulic torque tools.

A collet-based puller extracts stuck wind turbine brake pistons from the sleeve without cutting, reducing removal time and cost.

Non-adhesive joining of honeycomb and porous sheets avoids blocked holes, improving aircraft acoustic panel noise attenuation and strength.

Bent-down extensions let thin friction-increasing connectors be pre-assembled without screw-head protrusion, preserving full contact and torque transfer.

Localized dimples on gas turbine stator struts maintain a turbulent boundary layer, reduce flow separation, and cut exhaust pressure drop.

An external centering rim aligns split ring gear elements without disturbing load paths, reducing tooth misalignment and supporting oil evacuation.

Bent opening extensions secure ultra-thin friction connectors during pre-assembly without screw head protrusion, preserving full contact and torque transfer.

An impregnated carrier substrate strengthens wind turbine blade bond lines while removing grinding, cutting build time, dust, and noise.

Notched tower sections create a 360-degree ring opening that improves door frame alignment, welding quality, and stress distribution.

An anti-rotation spacer locks bearing housing parts in position during clocking, keeping the lubricant deflector aligned with the sump.

A small gutter channel and tuned outlet ratio capture more gear-train oil while limiting air choking and oil re-contact.

A tapered multi-region gutter captures more oil from a turbine gear train, cutting swirl and gas interference to maintain lubrication during negative g maneuvers.

A sealing strip bridges old and new guide vane sealing sections, cutting spare vane variants, leakage losses, and maintenance cost.

Riblets intersecting film-cooling exit ports suppress counter-rotating vortices, retain the cooling film, and lower surface temperature.

A rotatable centering sleeve aligns wind turbine flange bores, avoids lubricant contamination, and allows clean bolt removal without residue.

Embedded anchor rods and flanges connect wind tower ring segments with less corrosion, lower shear stress, and reduced maintenance.

An epicyclic reducer with inclined rocker gears cuts radial crowding in turbine-to-fan power transmission while limiting torsional stress.

A flexible extrusion plate and spacers control the coating gap to repair wind turbine blade leading-edge damage with a uniform aerodynamic finish.

Flow guides and scavenge passages drive lubricant forward through the bearing against windage, extending gas turbine bearing life.

A wedge-ring tool stabilizes the turbine and exhaust case so bearing compartments can be removed without major gas turbine disassembly.

Deformable casing diaphragms and variable strut thickness absorb thermal expansion and help gas turbine bearing supports avoid rotor resonance.

A preconditioner and stationary geometry reshape maldistributed duct flow into a uniform profile with low pressure loss in limited axial space.

Structural guides reference casing features to mill inner-surface slots faster, with precise axial alignment on worn or warped gas turbine casings.

A corrosion-resistant metallic sleeve is expanded inside wind turbine bolt holes to resist mounting impact and provide durable corrosion protection.

Cradle assemblies position a blade insert between separated root and tip sections, enabling longer wind turbine blades without costly crane lifts.

An asymmetric valve surface shifts self-excited turbocharger blow-off valve noise out of the audible range while preserving bypass flow control.

A keyed female screw tube locks adjacent male screw shafts against torque loosening, enabling stable series connection of modular water turbine rotors.

A tapered spherical conduit in the turbo housing manifold cuts back-pressure by improving the outlet flow path and downstream connection.

Offset support members and an uptower lifting setup let wind turbine gearbox housing sections be repaired without large ground cranes.

A multi-axis bevel gear train packs gas turbine accessories into less nacelle volume, reducing drag while preserving engine balance.

A welded contact body enlarges root bushing contact with the pitch bearing, improving force transfer, positioning, and friction joint reliability.

Localized material removal and shim plates restore worn blade root bore surfaces, stop lubricant leakage, and reduce bolt stress.

Journal bearing undercuts add compliance at planet gear supports, easing end-load concentration and protecting lubrication films under high torque.

Airflow-modifying wraps disrupt vortex formation on parked wind turbine blades, reducing standstill and stall-induced vibrations.

A segmented wedge supports the low pressure turbine during bearing compartment removal, cutting engine disassembly and maintenance time.

A replaceable cast tip with matching airfoil shape and cooling holes helps control turbine tip clearance without altering blade metallurgy.

Cables deployed by UAVs or balloons guide climbing robots to inspect, repair, and upgrade wind turbine blades with less downtime and manual access.

Integrated positive and negative wires simplify wind turbine blade de-icing module installation while reducing connection space and blade rework.

A geared turbofan uses inter-shaft and carrier bearings plus a tuned input shaft to balance rigidity, misalignment, and load transfer.