Engine Manufacture TRIZ Cases

An asymmetric convergent-divergent nozzle profile directs exhaust flow to generate thrust differential.

A turbine blade airfoil uses film cooling holes with precise Cartesian coordinates to protect the surface from hot combustion gases.

Acute angle engagement prevents wear on the radially outermost region of hub grooves, preserving structural integrity and sealing efficiency.

A fluid-filled counterweight offsets unbalanced blade weight to reduce gearbox torque, enabling installation in higher wind speeds.

Tuned-mass damping elements mounted on the inner surface of a wind turbine tower reduce audible tonality without requiring expensive structural reinforcement.

Segmenting the frame from the fairing reduces production costs while maintaining reliability under thermal loads.

Elongated S-shaped slots in acoustic damper liners dissipate sound energy while reducing thermal stresses that crack round-hole designs.

An insert with impingement apertures and a heat exchanger cools gas turbine airfoils by directing compressed airflow through internal cavities.

Replacing polyurethane with cellulose insulation and solvent-free adhesive eliminates isocyanate hazards while maintaining thermal performance.

A turbojet low pressure shaft uses an additional ball bearing between roller bearings to manage radial loads and support axial forces.

Sheet metal fixed vanes reduce surface roughness and structural complexity to improve turbocharger efficiency.

Non-uniform inlet edges in a gas turbine bleed plenum disrupt vortex coherence, preventing aero-acoustic resonance and damaging pressure waves.

A telescopic linear actuator uses a nested rod and drive shaft to move elements relative to a stationary base.

Convex pin bearing surfaces distribute aerodynamic loads across curved interfaces, eliminating stress concentration and preventing premature nozzle seizing.

A nested tube configuration creates a buffer air layer around the cooling duct to reduce thermal pollution.

A wind turbine phase advance capacitor connects to the distribution system during maintenance to improve power factor.

Remote-controlled cranes decouple from vessels to load equipment, bypassing rough sea restrictions that prevent manual operator boarding.

Compound fillets with varying radii at rotor wheel dovetail transitions reduce stress concentrations that cause stress corrosion cracking in contaminated steam.

Alternating side and mid channels in a zigzag serpentine circuit transfer heat from turbine airfoil sidewalls, reducing thermal stress concentrations.

Replacing solid cores with honeycomb structures lowers vane mass while maintaining strength and acoustic damping.

Adjustable lower fixing points along circular paths compensate for rotor hub positioning deviations, preventing unintentional swiveling of heavy components.

A load sharing support member transfers lifting loads to partially assembled wind towers.

Turning vanes direct cooling air through multi-bend paths to reduce pressure losses while maintaining heat transfer.

Removable mounting lugs detach the transition piece from the aft frame to create service access space.

Sleeve-shaped pressure pieces form rigid bolt connections between wind turbine rotor blade segments.

Polyethylene furanoate foam uses hydrohaloolefin blowing agents to form closed cells, balancing mechanical strength with recyclability.

A turbine vane anti-rotation slot uses a compound radius profile to accommodate radial thermal expansion while preventing rotation.

A compressible sealing member retained in a vane head groove prevents air leaks between the vane and the gas turbine engine case.

A localized surface structure on the blisk fillet reduces stress concentration and distributes loads to prevent crack propagation into the disk.

Curved injection tubes and segmented turbulators mix cooling air with exhaust gas to reduce NOx levels below 3 ppm.

A turbine blade shroud with a single radial sealing element reduces centrifugal mass and edge load, enhancing impact resistance for high-speed operation.

A turbine component uses a curved cooling passage to direct fluid flow along the leading edge.

Pre-shaping locking and wedge surfaces to distribute compressive stresses during blade deformation, maintaining tightness.

A supersonic flow inlet uses an elliptical compression ramp to eliminate flat panels, reducing pressure distortion and improving total pressure recovery.

Horizontal support elements allow main shaft removal without unbolting the bedplate, reducing maintenance time and expense.

A pivotable guide bracket redirects bracing cables to prevent contact with the tower wall while accommodating manufacturing tolerances.

A sliding scoop mechanism adjusts its position within a fan duct to regulate cold air bleed flow for aircraft propulsion systems.

Extended manufacturing moulds produce variable length wind turbine blades through modular assembly.

Installation ship carriage transports blades to nacelle, reducing weather delays during offshore wind turbine assembly.

Segmented fastener apertures with central channeled regions reduce stress concentrations caused by machining tolerances and offset ridges.

A threaded plug seal uses automatic locking means to prevent untimely unscrewing during operation.

Engineered surface ridges interlock silica-containing regions to inhibit creep displacement of environmental barrier coatings.

Cartesian coordinate placement of film cooling holes on turbine airfoils optimizes boundary layer protection against hot combustion gases.

Wave-like sidewall elevations and depressions alter primary pressure gradients, reducing secondary flow vortices and improving outflow angle alignment.

Optimized turbine vane profile defined by specific Cartesian coordinates minimizes airflow turbulence.

Sliding rails and removable fasteners attach acoustic panels to fan cases, enabling easy replacement without destructive removal.

A submerged hydrokinetic generator system uses a floating platform to suspend the turbine assembly in deep water channels.

A turning nozzle redirects cooling air from radial to tangential flow within a gas turbine vane assembly.