Engine Manufacture TRIZ Cases

A multi-layer coating system protects wind turbine blades using specialized primer and topcoat layers.

Segmenting sealing into a flexible collar and umbrella sheet resolves the complexity trade-off, maintaining a dry working area on wind turbine blades.

Tapered disks and Fibonacci spacers reduce deflection in a boundary layer turbomachine, improving reliability and energy conversion.

Mold-based attachment methods bond surface features to wind turbine rotor blades, reducing installation time and hazardous material exposure.

Bell mouth inlets reduce flow restrictions at turbine blade roots to improve cooling effectiveness.

A compact pivoting device uses a divisible turning ring and pins to rotate heavy gas turbine rotors from horizontal to vertical positions.

A helical gear assembly synchronizes counter-rotating turbine inputs to drive a single output shaft in gas turbine engines.

A cellular core with septum-divided cavities creates resonance chambers that attenuate noise waves through destructive interference.

Self-extending boom with rescue basket moves evacuees horizontally, avoiding falling debris risks during high-rise emergencies.

A tubular pressure port with an internal chamfer and hydrophobic coating repels condensation from the deflectable diaphragm.

Relocating the air turbine starter clutch into the accessory gearbox housing enables direct mechanical coupling to the gear train.

RF position identification determines internal blade feature locations to prevent drilling errors during ballast tank installation.

Thermal sprayed sacrificial anode film on fixed surfaces prevents bolt loosening and vibration in large bearings.

A self-extinguishing resin prepreg strip with 45-degree fiber orientation covers the external surface of an aircraft turbine engine casing in a single pass.

Permeable adhesive dams in wind turbine blade tip extensions prevent void formation during injection, ensuring reliable structural bonds.

Irregular groove design expands cooling gas laterally to create a continuous, adherent gas film that resolves non-uniform coverage and weak adhesion issues.

A prefabricated electrical module with cutout platforms enables single-step tower insertion, eliminating time-consuming offshore assembly.

Axially long journal bearing and ring gear design minimize star gear reduction diameter, resolving packaging challenges in small diameter geared turbofans.

Segmented composite strips stabilize the trailing edge region, reducing adhesive volume while maintaining strength against gravitational loads.

Merging diffuser portions into a single cooling slot reduces tip temperatures and prevents thermal barrier coating removal.

A translating ring assembly at the rear of an engine nacelle varies the nozzle exit area to control bypass flow.

Composite platform structure integrates honeycomb cores within internal cavities to reduce weight while maintaining structural integrity and durability.

Transfer peening impact through a resilient coating to generate beneficial residual compressive stress in the substrate without damaging the protective layer.

Segmented turbine blade track segments use a polygonal retention ring to manage thermal expansion and prevent gas leakage.

A tower support structure mounted above the center of gravity stabilizes the offshore wind power generator during transport.

An asymmetric D-shaped cutback with paired fillets decouples peak steady and vibratory stresses, resolving durability issues at the repair radius.

Axially-oriented cellular seal structure guides tip leakage flow axially, reducing mixing losses and shroud temperature in turbine engines.

A detachable support platform mounts to a stationary surface inside the hollow stator shaft, enabling safe maintenance access without external ladders.

Ground-based lifting tools pull tip extensions over blade tips using adjustable clamps, eliminating high-altitude installation risks.

A geometrically segmented coating section with an array of cells dissipates internal stresses in blade outer air seals.

Single-piece outlet guide vane with staggered heat transfer fins conducts thermal energy from lubricant to bypass airflow.

Internal ducts discharge gas jets to shear leaking flows between turbine vane heels, reducing energy loss across operating speeds.

Laminated carbon composite platforms reduce interlaminar stress concentrations while maintaining structural strength and aero performance.

Tensioned cable rings offset bending moments on wind turbine towers, reducing foundation loads and fatigue stress concentrations.

An exit diffuser on a metering plate aligns flow axis and spreads flow area to reduce pressure losses while maintaining heat transfer efficiency.

Root openings flush ceramic core material from internal cooling passages, preventing obstruction and maintaining airflow through trip strips.

A convergent-divergent nozzle manages airflow through specific geometry to reduce shock waves.

Merging the platform and main cores into one unit eliminates fragile glue joints, reducing casting breakage while maintaining efficient coolant distribution.

Relocating center cooling discharge openings to the suction side eliminates metal flash issues at the trailing edge of bowed airfoils.

Modular plates create alternate load paths on wind turbine generator support frames, reducing stress at weld joints and preventing fatigue cracking.

A gas turbine blade top plate flow passage directs cooling medium through segmented inlet and outlet channels to cool the thinning and top surface.

Concentric hollow rotor shaft eliminates separate braking systems, reducing mechanical complexity while maintaining structural integrity.

EDM comb electrodes drill precise cooling holes in turbine vanes for improved film cooling.

Oblong cooling hole outlets reduce stress concentrations in turbine blades while maintaining uniform internal cavity cooling.

Triangular pins replace line-contact clevises to distribute crush stress over flat surfaces, protecting interlaminar regions in gas turbine engines.

An interference fit rivet secures a turbine blade shim to prevent axial movement and fluid flow disruption in gas turbine engines.

Segmented turn cap dividers create parallel turning paths that merge efficiently, reducing pressure loss while enabling space-eater baffle installation.

Cold leakage detection modules correct temperature measurement errors to prevent excessive fuel flow and component stress in sequential combustion gas turbines.

Inverted nested spool arrangement reduces core size while maintaining low pressure shaft critical speed limits.

A rotor blade clamp uses a spring-loaded hinge and reeving mechanism to draw clamping parts together securely.