Engine Manufacture TRIZ Cases

Concentric input shafts and a variable transmission compactly drive turbine accessories across wide spool speed ranges in smaller engines.

An adjustable adapter and coupling let a rigid gas turbine tube fit ports with different installation vectors while reducing assembly stress.

A cofferdam-built keystone and buoyant beam base is floated out for staged turbine assembly, enabling practical deep-water mooring.

Integrated ring-gear passages and a rigidly attached gutter recover and reuse lubricant while reducing geared turbofan assembly space and complexity.

A laser emitter and movable target verify axis parallelism during turbomachine module docking, reducing bearing contact risk and assembly errors.

An axially mounted accessory gearbox uses internal gear trains to remove the tower shaft, cutting engine diameter, drag, and weight.

A cam-adjusted rotary plate orifice maintains minimum pre-start fuel flow while reducing leakage and avoiding costly fixed-orifice tuning.

A friction-fit sleeve replaces a flange connection, simplifying tidal rotor shaft assembly while improving access to sealing unit replacement.

Inclined contact surfaces stabilize the stop valve to suppress rattling wear while enabling open-close state detection in power generation.

Hybrid airfoils use a metallic sheath, composite core, and lubricated retention pins to handle centrifugal loads while limiting impact damage.

A carrier sleeve and bearing collar isolate rotor parts from shaft deviations, reducing bending, imbalance, and turbocharger noise.

Hybrid metallic-sheath and composite-core airfoils use differentiated retention pins to withstand centrifugal loads and foreign object impacts.

Undercut journal bearings redistribute end loads in an aircraft planetary gearbox, preserving lubrication films under higher torque.

Internal ribs placed near key compressor stages raise shaft bending stiffness and cut deflection while reducing weight by about 10%.

A socket-wrench tool removes hub nuts from outside the hub, cutting pitch bearing disassembly time and crane idle time.

A retention shoulder locks the bushing against axial and rotational movement, cutting turbocharger packaging space, parts, and assembly time.

Different hole patterns in an adapter let new machine heads fit existing wind turbine towers, extending service life and improving generation efficiency.

A bellows-and-glide-plate seal blocks hot exhaust leakage while allowing flange movement in gas turbine exhaust couplings.

Rigging and specialized tooling push out and lower a wind turbine main shaft for on-site bearing replacement without moving the bedplate.

Detachable torque arms and endcaps let a wind turbine gearbox ship within standard width limits while preserving secure bedplate mounting.

Bearing span and stiffness tuning shift core shaft resonance outside the running range, reducing whirl damage in geared gas turbines.

Conductive adhesive, tapered CFRP patches, and vacuum bagging restore spar cap stiffness and lightning current continuity after blade damage.

A dry-running sliding bearing replaces rolling joints in wind turbines to cut weight and space while improving vibration damping and noise control.

A leveled mobile factory aligns and joins transported blade sections near the wind site, cutting transport burden while improving joint precision and strength.

Recessed pin and hole surfaces create flat contact and an oil film, reducing Hertzian stress, wear, and bearing failure risk.

A radially expanding connector creates a preloaded joint that cuts flange weight, eases offshore assembly, and reduces fatigue-driven maintenance.

A flexible coupling and deflection limiter let a gas turbine gearbox move within axial, radial, and circumferential bounds to avoid gear binding.

Opposed axial-face bearing housings raise wind turbine shaft bending stiffness while keeping bearings and seals accessible for maintenance.

Matched-curvature non-circular pins spread load in CMC holes, cutting edge stress, bending moments, and fracture risk.

Serrated leading-edge teeth on the annular separation wall cut fan-wake and stator interaction noise in compact high-bypass turbomachines.

Tabs pinched by plugs in rib node cavities secure multi-piece airfoils with less bonding mass while preserving structural strength.

Multiple axial and radial mounting surfaces let gas turbine gearbox accessories fit available space and cooler zones, easing assembly.

Rotating blades replace heavy thrust-reverser doors to block turbofan secondary flow and generate counter-thrust with less mechanism weight.

A rear carrier bearing and separate fan shaft support split torque and axial load paths to reduce gear mesh loading in geared turbofans.

Repairs thrust reverser corrosion by bonding Kevlar plies and doublers, then sealing gaps to meet FAA compliance without full part replacement.

A flexible variable-thickness rotor and wood or composite hydrodynamic bearings help hydroelectric units withstand turbulent flow with less stress and material use.

A one-way ratchet between gas turbine shaft portions lets the fan keep windmilling after seizure, reducing drag and helping maintain aircraft control.

A tapered channel that shifts from rectangular to triangular flow improves oil capture around a gear train while limiting gas carryover.

A sliding helical coupling switches reduction ratios so one turbomachine accessory can start at high torque and generate without overspeed or wear.

A preformed glass fiber repair patch restores lightning-damaged wind turbine blades faster by limiting simple bonding to a defined damage range.

A boss-and-O-ring test tool applies proof pressure to verify C-seal sealing in gas turbine bearing housings and pinpoint leaks.

Grooved leading-edge textures disrupt abrasive fluid flow to cut erosion without added weight, extending service life in airfoils, rotors, and propellers.

A fuselage-integrated drivetrain uses direction-reversing transmission and aft propulsor fans to ingest boundary layer flow and cut fuel burn.

Modular strakes with pre-attached bluff bodies and tensioned fastening disrupt vortex streets to limit tower vibration during wind turbine erection.

A laser emitter and movable target verify axis parallelism at two positions, enabling precise turbomachine docking without hard contact.

Visual dimple detection guides water jet or laser recutting of cooling air holes after coating repair, preserving alignment and new coating integrity.

Multiple UAVs with lifting harnesses and ground-station control position wind turbine components without cranes or manual guiding.

A curved beam spring and sealed fluid damper cut axial space and machining complexity while improving thrust bearing vibration control.

Using the flange itself as support, this case lifts and repositions heavy tensioning tools with less manual effort and no extra structures.

A threaded adapter placed over tower nuts creates secure sling anchorage points in wind turbines without loosening bolts or using heavy torque tools.