Engine Manufacture TRIZ Cases

Flared cooling tube reduces metal temperatures in turbine engine airfoil-to-platform fillets, extending part life.

Rotatable blades on a slider deflect secondary flow, reducing weight and obstruction compared to heavy reversing doors.

A segmented shroud covers only the trailing edge side region of turbine blades to reduce weight and vibration while maintaining performance.

A transition piece connects polygonal and tubular wind turbine tower sections to streamline assembly.

Segmented hoisting devices distribute loads to replace large cranes, lowering installation costs and complexity.

Segmenting the fan system into primary and secondary units resolves installation difficulties while maintaining propulsive efficiency.

A bell-mount fixture attaches to generator housing bores to support tools and machinery for shaft maintenance.

Local quality principle adds reinforcing band to retention zone, preserving yarn volume ratio and cracking resistance while increasing thickness.

Countersinks on attachment flanges reduce bending stress concentration at pin joints.

A rotary annular bypass valve aligns orifices to regulate exhaust flow, eliminating leakage caused by gas pressure acting against conventional swing valves.

Depressions and protrusions on the flow path surface balance static pressure to uniformize cooling air distribution, preventing high-temperature areas.

A hoisting yoke uses a messenger line winch to guide slings under elongate objects for secure lifting.

A tapered aligning tool connects to fasteners and guides holes into position during lowering.

A variable aircraft engine inlet guard uses an actuation system to shift a first screen along a second screen, altering perforation geometry.

Pressing cover forming portions into housing grooves eliminates screw fasteners and reduces part diversity in exhaust gas turbochargers.

Internal projections redirect particulate matter away from cooling turns, preventing wall accumulation and maintaining thermal performance.

A radial spline connection allows the bumper ring to float, accommodating thermal expansion differences between the engine casing and unison ring.

Dual yokes align and hoist heavy blades inside the cone, eliminating external crane costs.

Integrated receptacle connects to a locking bolt on a supporting beam, eliminating uncontrolled movements during lifting.

Stackable frames use retractable arms and claws to fix adjacent units, eliminating extensive lashing requirements for safe multi-stage transportation.

Segmented cooling circuits within the airfoil plexus distribute fluid flow to specific regions, reducing thermal stress and material wear.

A rotor assembly method calculates axis deviation using end face runout measurement data and homogeneous coordinate transformation.

Segmented cradles with independent lifting units connect submersible sections, eliminating oscillation in rough weather while maintaining assembly efficiency.

A rotary annular bypass valve aligns orifices to reduce leakage and nonlinearities, improving transient response and engine efficiency.

Support rings and distance sleeves secure ancillary systems inside a fixed hollow shaft, preventing vibration damage while minimizing mass.

Segmented webs bond into pultruded spar caps and across shear webs, transferring larger loads without relying solely on adhesive strength.

Multi-lobed cooling holes reduce radial velocity and prevent surface separation to improve film cooling effectiveness.

Segmented inlet holes merge into a common slot to reduce cooling fluid flow rate, lowering thermodynamic losses while maintaining thermal resistance.

A hollow cylindrical roller bearing cage uses internal reinforcement to provide stiffening force against centrifugal loads.