Engine Manufacture TRIZ Cases

See how staged inlet-opening control and rotor-rotation maintenance prevent refrigerant backflo

See how radial hollow vanes with diffuser elements divide inlet airflow to slow vane flow, redu

See how a modular micro-turbine system generates 3 kWh electricity plus hot water and air at ov

Closed-loop recirculated air cooling replaces liquid nitrogen in turbomachine cold start testing, cutting cost, hazards, and cooling time.

Recirculated air cooling replaces liquid nitrogen in turbomachine cold start testing, cutting infrastructure, hazards, and recooling delays.

Diffuser-fed hollow vanes split turbofan cooling airflow to improve heat rejection while reducing thrust loss, surge impact, and vane damage.

See how lift-based guide vane positioning prevents surge during compressor startup while reduci

A removable filter wall separates pump chambers while its opening maintains washing-liquid flow, simplifying cleaning and maintenance.

See how lift-based guide vane positioning prevents surge during centrifugal compressor startup,

See how an impeller-driven measurement method determines fan volume flow from rotational speed,

Nested arm sections with guides and bearings protect fluid or electrical conduits while maintaining reliable multi-dimensional movement.

An acute-angle fluid junction routes cooler fluid to temperature-sensitive components while reducing separate cooling loops, valves, and upkeep.

A vacuum-sealed flywheel enclosure uses magnetic lift and positioning to cut bearing wear, improve safety, and enable scalable energy storage.

Buoyant shuttles cycle through tandem water towers and linear generators to balance timing, separation, and net electricity output.

Pre-installed electrical devices in a tower adapter simplify nacelle mounting, cutting offshore installation time, crane demand, and damage risk.

Forced air cooling and ceramic isolators keep a micro-turbine generator cool near the turbine, preventing magnet demagnetization.

Waste heat recuperation, reheat, and inlet pressure boost raise micro-turbine power density and efficiency for longer untethered operation.

An inflatable bladder and internal actuator reshape the turbofan flowpath wall to tune airflow across operating modes and improve thrust efficiency.

An inflatable bladder and internal actuator reshape the turbofan flowpath wall to match rotor tip speed and improve propulsor efficiency.

Magnetic couplings and top-bottom bearing assemblies cut vertical load and friction, making flywheel storage more scalable for backup and renewables.

Modular clamped flywheel plates increase energy storage in a compact footprint, offering a scalable alternative to complex chemical batteries.

A ground-triggered coupling mechanism releases a lift-tilt unit from wind turbine generator segments without tools, cutting risk and handling time.

Toothed plates and binding cables restore a burned stator iron core quickly, avoiding long re-lamination delays during generator repair.

A stacked flywheel fixture uses aligned axles and clamping to position plates accurately, improving balance and scalable mechanical energy storage.

Asymmetrical hydrofoil shrouds and diffusers accelerate water flow and boost hydrokinetic turbine power without larger structures.

Segmented down conductor connectors simplify transport and blade assembly while preserving electrical isolation and lightning-current reliability.

A modular vertical assembly setup guides rotor and stator coaxially on-site, cutting transport burden while maintaining a precise air gap.

Flow-disturbing shroud and vane elements boost primary-stream convection to cool an aircraft engine electrical machine without oil cooling.

A compact nested layout packs the gas turbine, generator, and filters onto one chassis for high output, fast transport, and quick installation.

Massive plates clamped by fasteners and separate axles form a modular flywheel that stores energy without battery chemistry, reducing complexity and waste.

A lower-slot stator core with more coil turns cuts copper and eddy losses while reducing inter-turn failures in 2.3 MW wind generators.

A thickened edge and thinned center help lightning conductors spread current more evenly and prevent edge damage from skin effect.

Segmented permanent magnets let a single-spool gas turbine generator reach MW-class output while avoiding added shafts, gears, and weight.

Measured and pre-sorted rotor magnets help keep the stator-rotor airgap consistent, reducing eccentricity and improving generator efficiency.

Primary-flow turbulence boosts heat transfer to cool an aircraft engine electric machine without oil loops, cutting weight and complexity.

External rotor attachment uses a runner cover to self-align and secure the water wheel, easing replacement while preserving watertightness.

Feeding current to armature coils creates an opposing field that cuts rotor-stator attraction during permanent magnet generator assembly.

Magnetic lift pulls the flywheel upward to unload bearings, enabling scalable vacuum flywheel energy storage with lower wear and higher efficiency.

Rotor and stator segments shift between transport and operation positions to ease wind turbine generator delivery, alignment, and air-gap setup.

A dual-mode electric machine starts the turbine through selective high-speed shaft coupling while cutting gearbox weight and complexity.

Forced airflow and a thermal conduction choke keep a micro-turbine generator cooler, preventing magnet heat damage in compact power units.

A shaft-coupled electric machine replaces heavy starter gearboxes by starting through a clutch and generating power from the low speed shaft.

A coaxial single-spool generator avoids gears and extra shafts, enabling megawatt aircraft power while keeping rotor magnets attached at high speed.

Pre-installing power conditioning and switching devices in a tower adapter cuts offshore nacelle lifting complexity, on-site work, and damage risk.

A rotor-mounted replacement tool aligns with hard-to-reach stator coils, enabling safer extraction and faster generator maintenance.

Integrated busbars, cooling conduits, and shielding cut electrical losses and thermal stress in turbine engine struts.

Fluid-driven local generation powers isolated downhole equipment without cables or heat-limited batteries, while preserving conduit flow.

A sheathed rigid conductive bar replaces bulky harness routing, enabling compact, vibration-resistant power connection in aircraft turbine engines.

A shrouded dual-rotor layout improves laminar airflow and power capture in low-wind residential or portable installations.

Asymmetrical hub and blade hydrofoils with an annular diffuser accelerate water flow and raise hydrokinetic turbine power without larger designs.

A sheathed rigid conductive bar replaces bulky harness routing to improve vibration resistance and compact electrical connection in aircraft turbines.

Internal and external tip electrodes suppress blade lightning by reducing potential difference while staying securely fixed under wind and centrifugal loads.

A weakened mechanical fuse in the gearbox load path ruptures at a set shear threshold to limit torque and protect gas turbine structures.

Cooling conduits and integrated three-phase busbars help turbine engine struts carry high electrical power with lower heat, weight, and losses.

Separate auxiliary nacelle units with redundant converters or transformers cut transport burden and keep the turbine running during replacement.

An S-shaped turbine wheel blade layout improves exhaust energy recovery in integrated fuel cell turbochargers while reducing noise, mass, and packaging size.

A turbocharger turbine wheel uses S-shaped blades and tailored blade angles to improve exhaust energy recovery while reducing noise and mass.

By placing the electric machine inside the engine core between compressor and turbine stages, this case shows a compact gas turbine layout.

Embedding a motor-generator between compressor and turbine rotors cuts gas turbine size while preserving dual-mode operation and bearing lubrication.

A coaxial generator and integrally bladed rotor enable 1-2 MW output from a single-spool gas turbine without heavy gears or magnet separation.

A recuperator, thermoelectric array, and bottoming blower recover exhaust heat to extend low-power UAV missions with less fuel.

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

A guiderail, trolley, and hydraulic lift place heavy damper units accurately inside a horizontal wind turbine tower section.

Optical marker-based alignment compensates section deviation in large wind turbine blades to preserve twist, load transfer, and aerodynamic shape.

Local material removal and shim plates restore worn wind turbine blade root bolt bores, stop leakage, and prevent further wear.

Axially adjacent inter-shaft and carrier bearings improve gearbox load paths and shaft stiffness in geared turbofan engines.

A combined magnetic bearing and foil air cushion supports turbine rotors with low friction, cutting lubricant and cooling demand.

Localized thinning around planet carrier orifices balances bearing stiffness, preventing gear misalignment in turbomachine gearboxes.

Adjustable cradle supports let a wind turbine bearing unit slide in or out of a horizontal bedplate without removing the rotor or main shaft.

Selective spline pitch changes redistribute load around the shaft circumference, reducing deformation and improving torque transmission.

A positioned cutting unit separates tensioned tower tendons from outside the structure, reducing collapse risk and manual dismantling effort.

Pre-positioned stud bolts let tower sections be lifted and aligned together, cutting crane lifts, bolt handling, and erection time.

Bottom and top lifting tools let tower segments unload, pivot, and store without multiple cranes, reducing deformation and surface damage.

Axial blocking members lock curvic-coupled turbomachine discs in place to prevent uncoupling and rotor overspeed after blade loss.

Modified spline pitch evens circumferential load in turbine planetary gear trains, reducing shaft deformation and improving torque transmission.

Measured flange gaps set the tightening sequence so non-parallel ring flanges close uniformly and reach higher preload force.

A staggered multi-set planet gear layout raises torque capacity without enlarging gearbox diameter, preserving airflow and fan speed matching.

An inseparably joined sliding bearing element simplifies wind turbine rotor hub support while improving failure safety and service life.

A pinned composite airfoil root uses aligned ligaments, hybrid materials, and lubricated retention pins to spread loads and limit wear and FOD damage.

Local flange thinning balances bearing stiffness in a one-piece turbomachine planet carrier to keep satellite loads centered and reduce misalignment.

A non-loadbearing inner body isolates sensors inside the main shaft cavity, improving wind turbine deflection and bending load measurement fidelity.

Adjustable liquid damper modules match tower frequency to curb vortex-shedding oscillations and reduce structural damage in wind turbines.

A threaded two-pin fastener secures heavy transmission parts and enables release after deformation to prevent jamming during disassembly.

Stepped contact surfaces and seal pockets let wind tower flanges self-seal under bending loads while improving fatigue resistance.

Robotic machining during CMC preforming and partial densification removes broken fibers, improves yield, and reduces waste in turbine components.

Adjustable pressure mandrels hold different main shaft geometries in the nacelle while integrated crane mounts enable bearing servicing with less downtime.

Rounding blade-tip edges before galvanic coating prevents buildup and lateral projection, reducing crack risk under vibration.

A dry-running plain bearing rotary connection cuts wind turbine bearing weight and size while preserving load capacity and damping vibration.

A non-loadbearing inner body isolates sensors inside the rotating shaft to improve wind turbine main shaft deflection measurement fidelity.

An external centering rim aligns split ring gear elements without hindering force transfer, improving tooth orientation and oil passage.

A one-way ratchet decouples fan and torque shafts during seizure, letting the fan windmill to cut drag and preserve aircraft control.

A pre-loaded flexural joint uses bellows, a kinematic ring, and flared tube geometry to cut rotational stiffness and friction in turbine ducts.

A reverse-flow dual-spool layout routes the accessory gearbox through the LP compressor to raise pressure ratio in a more compact engine.

Digital scanning and on-site 3D printing restore damaged wind turbine surfaces with precise shaping, reducing downtime and replacement cost.

A downwind hydraulic push-pull system removes or installs a wind turbine main shaft horizontally, cutting bearing maintenance time and cost.

A multilayer PVD coating with LBIP sharkskin and rear lotus structuring cuts drag while protecting compressor blades from oxidation and erosion.

Balance tabs separated by stress shielding scallops let turbine rotors be trimmed precisely without notches, polishing, or added stress.

A toroidal gearbox layout packs accessory drives into engine annular space while improving access and shortening external lines.

A mobile factory levels and aligns wind turbine blade sections near the site, cutting transport burden while maintaining strong joints.

A V-shaped compressor drive shaft uses curvic and Hirth couplings to simplify geared turbine assembly while improving joint strength and modularity.

A breakable fuse pin and stronger stop pin keep a gas turbine gearbox attached during sudden loads while reducing damage, weight, and complexity.

Geometric template features match each airflow modifier to its blade location, cutting installation time while preserving precise aerodynamic placement.

A lift-gap verification and vision-guided alignment approach keeps nacelle mounting interfaces close during assembly, cutting offshore delays and tower evacuation.

Protective end caps, fibre layers, and tray handling prevent pultrusion taper-tip damage while preserving smooth load transfer in wind turbine blades.

An external heat exchanger with inlet and outlet ducts cools turbofan systems using bypass air while limiting flow disruption and energy loss.

Varying wall thickness in wind turbine tower concrete segments reduces joint bending and circumferential stress while improving fatigue life.

Plastic welding of thermoplastic blade edges replaces adhesive joints, cutting curing time, weight, and fatigue risk in longer wind turbine blades.

An adhesion-promoter fibre sheet strengthens spar cap to blade shell bonding across mixed resin systems while avoiding primer handling damage.

Diverging cooling circuits with pedestals and impingement sections boost convective heat transfer in gas turbine parts under high thermal loads.

Guiding rails and trolley units let wind turbine blades move horizontally in the rack, reducing wind load and edge damage during handling.

A suction-side-shifted turbine blade tip contour delays tip vortex generation, cuts leakage loss, and preserves cooling effectiveness.

Aligned rotatable fixtures let heavy wind turbine blades turn around their center of gravity with minimal force and no hydraulic equipment.

A downstream-guided sonic valve layout stabilizes turbomachine gas flow, cuts pressure loss, and supports precise control at high pressure ratios.

A releasable cabin-to-wall platform enables maintenance at any tower location, cutting fixed-installation complexity, cost, and access limits.