Engine Manufacture TRIZ Cases

Nested serpentine cooling passages resolve inefficiencies in large section widths by maintaining cooling mass flow efficiency and reducing cycle penalties.

A tapered heat shield encases oil tube fittings to prevent overheating and maintain fluid flow in gas turbine engines.

Segmented serpentine channels in the turbine bucket platform lower manufacturing complexity and minimize cooling medium consumption.

Axial displacement of the trailing edge body reduces nacelle length while maintaining effective thrust reversal.

Cylindrical radial bearing surfaces maximize contact area to reduce Hertz pressures and prevent premature wear in turbomachine turbine assemblies.

Embedding 3D woven oxide fibers into 2D oxide-oxide composites maintains stiffness and fatigue resistance while preventing weight increase from additional plies.

Staggered vane arrays resolve flow restrictions by maintaining minimum flow area above 95% of throat area, improving bypass engine efficiency.

Buffer chamber modulates cooling air flow via pressure sensors to maintain uniform radial expansion and detect burn-through conditions.

Merges turbine and generator rotors to eliminate gearing, reducing weight and maintenance for deep sea energy capture.

A climbing device transports personnel and components vertically along a tower structure using integrated drive mechanisms.

Web locating device guides shear web mounting portions to precise locations on wind turbine blade shells using integrated alignment features.

Boss and recessed passage on the inter-airfoil surface minimize stray flows to resolve energy dissipation trade-offs.

Radial cooling channel sections merge via deflection channels featuring 20% axial material thickening to enhance structural integrity.

A lateral support member positions between elongated mould assemblies to enable rotational movement without central rail interference.

Non-metallic ceramic dampers contact adjacent turbine blade platforms to mechanically absorb rotational vibrations through friction.

Large leading-edge fillet radii guide tangential fluid flow along turbine airfoils, resolving the trade-off between casting precision and cooling capacity.

A turbine blade cooling circuit uses a central duct to supply air directly to the squealer tip cavity.

Flow enhancers between ribs accelerate cooling fluid to boost heat transfer in high-temperature turbine regions.

A segmented blade tip platform positions sealing members perpendicular to airflow to reduce gas leakage across turbine clearances.

Direct shroud mounting on a pivoting support eliminates air leakage and improves impingement cooling by maintaining tight tip clearance.

Pulleys redirect a ground winch to lift heavy bearings, eliminating large crane costs in remote terrain.

Two-step forming creates curved turbine disk slots, reducing stress and enhancing retention capability.

Chamfered pin-fins in trailing edge slots enhance mechanical strength while maintaining cooling performance under high thermal loads.

Integrated cable routing eliminates expensive crane usage for blade maintenance by using hub flanges as anchor points for safe, efficient installation.

A flow separating rib divides a dual-fed gas turbine cooling cavity into isolated portions to maintain consistent fluid flow.

An inclined groove on a wind turbine rotor blade surface deflects airflow particulate matter away from add-on element bonding interfaces.

Extracting the bolt joint into the hollow interior allows optimized dimensions independent of shell thickness, reducing weight and improving maintenance access.

Separate impulse body housings attach to integrally bladed rotors, using moving bodies within cavities to generate impact contacts.

Thickened annular steel segment aligns force flow to reduce screw count, lowering material costs while maintaining structural integrity.

Asymmetric positioning rods constrain filter installation to prevent horizontal pleat misalignment and compressor damage.

Segmented metal and composite sleeves disperse load to shorten bolt length, resolving the trade-off between bearing capacity and structural integrity.

Plastic height adjustment units yield under excessive load, allowing grout to distribute stress and prevent foundation damage during tower erection.

Applying a shape memory alloy coating to rotor blades resists erosion, cavitation, and foreign object damage while maintaining manufacturing scalability.

Integrally formed blades in a geared turbofan compressor reduce thermal mechanical fatigue while maintaining efficiency at high exit temperatures.

Segmenting the vane pole with a lower rib stabilizes support against swinging while maintaining reduced wall thickness and weight.

A turbine rotor blade airfoil shape defined by scaled Cartesian coordinates maintains aerodynamic efficiency across manufacturing tolerances.

Segmented cooling channels maintain turbine blade rigidity while simplifying internal machining processes.

A dissipater assembly manages excess electrical energy from an electrically-actuated turbocharger using a controlled resistor and substrate.

Rolling impregnated fibre sheets around a mandrel forms variable stator vanes, reducing weight by 40-50% while eliminating expensive casting tooling.

A rotary machine damper pin uses a regular polygonal prism shape to distribute friction across multiple contact surfaces during rotation.

A lock arrangement uses a rotatable member and axially movable lock member to secure an actuator against rotation.

A double-flow turbine uses a displaceable wall piece to vary exhaust gas volume upstream of impellers.

Flexible adaptive segments with linkages vary fan exit area to resolve weight versus performance trade-offs.

Secondary deflection channel redirects debris away from compressor while maintaining aerodynamic performance.

Independent drive units move the maintenance chamber along longitudinal profiles to position rotor blade tips, reducing crane dependency and repair costs.

Depressions in stator walls lower local Mach numbers, reducing corner losses and flow deviation.

Replacing rectangular spars with a circular cross-section eliminates stress concentrations and warping, reducing weight while maintaining structural integrity.