Engine Manufacture TRIZ Cases

A hollow blade uses a sacrificial damper biased by centrifugal force to reduce vibration while preventing wear on aluminum alloy surfaces.

Pivoting the handling tool aligns bolt holes without repositioning the crane, reducing installation time and complexity.

A dedicated up-pass channel between the leading edge and serpentine circuit maintains backflow margin against pressure drop.

A gas turbine engine uses a fan drive turbine and gear train to rotate multiple distributed fan rotors.

Segmented frame legs and movable lifting devices eliminate expensive ground crane mobilization while maintaining safe lifting capacity.

A variable-geometry convergent-divergent exhaust nozzle uses rotatable flap assemblies to adjust the nozzle passageway for gas turbine engines.

A retrofit kit adapts exhaust collectors to various gas turbine engines using interchangeable tunnel geometries and seal assemblies.

Recessed fastener covers minimize aerodynamic drag and flow losses by smoothing airflow disruption over the component outer surface.

Controlled vacuum heat treatment recrystallizes surface damage layers into fine grain structures on turbine rotor disks.

Cooling orifice channels compressed air through the first turbine bearing to reduce high speed rotor temperature and lower fuel consumption.

A multifunctional heating sandwich composite converts electromagnetic waves into thermal energy through a honeycomb core structure.

Nested shafts and overlapping shrouds reduce energy losses between counter-rotating blades, enabling multiple load power.

Strategic cooling hole placement on turbine vane platforms reduces material temperature and mitigates oxidation risks.

A sacrificial bumper positions casting cores to form ribs with flat and tapered surfaces, maintaining precise wall thickness in complex gas turbine components.

Variable path channels position closer to the exterior surface at valleys, reducing thermal stress on hot gas path components.

Elastic trailing edge flanges reduce aerodynamic noise without increasing device complexity.

An oval-shaped film cooler stabilizes cooling air supply across a gas turbine blade surface.

Segmented nozzle segments rotate to adjust bypass flow, resolving complexity trade-offs in turbofan engine control.

A variable vane control system adjusts angular deflection of compressor vanes using sensors and actuators to optimize engine performance.

Replacing connecting rods with a cable-pulley system eliminates aerodynamic disturbances and pressure spikes during flap opening.

Segmented pedestal geometry creates local stiffness jumps to arrest crack propagation in turbomachine blades.

Screws join austenitic exhaust pipes to ferritic casings, preventing weld cracking from thermal expansion mismatch.

Segmented platinum and ceramic layers catalyze gum formation while blocking interdiffusion, preventing fuel flow choking in gas turbine engines.

Honeycomb core between composite skins reduces mass while maintaining stiffness against centrifugal forces.

Segmenting the nacelle into modular units enables mass production while maintaining structural integrity and transportability.

Positive engagement between connecting flanges ensures torsional rigidity while reducing assembly effort and part count.

Segmenting the hub body from the spinner module reduces crane dependency during heavy lifting operations while maintaining structural integrity.

Integrating the drive ring and nozzle ring reduces turbocharger size while maintaining exhaust gas flow control precision.

A turbocharger exhaust inlet flange uses a trapezoid bolt pattern to nest within the turbine housing structure.

A translating inlet assembly uses a rail and track system to guide airflow modulation.

Vacuum infusion joins pre-casted wind turbine blade segments with added fiber lay-ups, reducing resin travel height and manufacturing complexity.

Repair slurry with sintering aids reduces surface roughness below 200 microinch Ra for aerodynamic turbine engine components.

High voltage joint in wind turbine transition piece enables array cable connections for string testing.

A chord-wise extending pin with a hollow cross-section connects wind turbine blade segments, preventing ovalization under load.

Threaded male and female spools distribute point loads evenly across honeycomb structures to prevent plastic deformation under high thermal stress.

Parallel compressors feed a reverse flow combustor to drive series turbines, balancing airflow distribution and improving compression efficiency.

Removable ballast weights on the attachment assembly increase combined weight to meet hoist thresholds, enabling heavier component lifts without larger cranes.

Vertical resonance chambers in corrugated ribbon panels attenuate low-frequency noise without increasing panel thickness.

Interleaved connecting part sheets join wind turbine blade sections via mechanical dentations, resolving fiber splitting risks during spar cap manufacturing.

Segmented mast elements connect through overconnectors extending astride joint lines to distribute mechanical loads and prevent buckling in large wind turbines.

Curved S-shaped ducts elongate resonator paths to attenuate low-frequency noise without increasing panel thickness or weight.

An integrated rotor hub hoist beam handles heavy components internally to eliminate external crane logistics.

Annular casing channel reverses cooling flow direction to reduce air consumption and improve thermal convection.

Radial serpentine circuits shield tip channels from excessive heat, preventing component failure while enabling higher operating temperatures.

Segmented cylindrical inserts with annular grooves distribute cooling air to blade platforms, resolving sealing and wear uniformity trade-offs.

Pre-aligned carbon-fibre reinforced plastic stacks transfer into a blade mould using a support structure, reducing manual alignment time.

Segmented blade joints simplify manufacturing and transport while maintaining structural integrity for large wind turbines.

Segmented reinforcement cores nest within rotor blade shells to reduce stress concentrations without increasing weight.

Variable cross-section cooling conduits reduce stress concentrations while maintaining high thermal efficiency in turbine blade assemblies.