Propellers TRIZ Cases

Concentrated propeller slipstreams enhance aileron authority at low speeds, enabling steep descent angles without excessive drag.

Integrated axial stator blades manage airflow mass distribution to maintain optimal motor temperatures while reducing system weight and volume.

Inverting the planetary carrier and ring gear orientation offsets axial loads, reducing bearing stress and extending component lifespan.

A wind turbine rotor blade uses a shape memory polymer composite skin that transitions from a retracted profile to an airfoil profile when heated.

Embedded sensors monitor internal light, noise, and pressure to detect shell member separation along wind turbine blade edges before structural failure occurs.

Segmented cooling circuits and nested grooves maintain structural integrity at temperatures above 1100C while simplifying manufacturing complexity.

Slanted ribs with slits reduce recirculation zones and improve heat transfer in internal cooling passages.

A rotating transformer electrically isolates an AC rotary machine from its source through magnetic coupling.

A propeller balancing system uses a vibration sensor and electrical coils to move weights along a spiral groove for real-time adjustment.

A segmented radial control shaft couples external and internal portions to adjust fan blade pitch in unducted turbine engines.

A support member with a step limits component movement toward biasing members, reducing impact loads and extending fatigue life during extreme events.

Non-circular blade orbits in a cycloidal rotor resolve the contradiction between structural simplicity and lift-to-thrust ratio adaptability.

Embedding nanopore batteries within propeller wings reduces drone weight while extending flight time and altitude capabilities.

Multiple radii of curvature at the pin wrap curved end minimize edge tangency stress concentration.

Nesting the power turbine between contra-rotating propellers reduces axial engine length and sound emissions while maintaining high rotational efficiency.

Sensors mounted in the barrel nut measure root loads, allowing the controller to adjust pitch angles and reduce stress on the hub.

Centrifugal force extends the outer blade of a telescopic rotor assembly, reducing storage volume while maintaining aerodynamic performance.

An embedded resonant aperture on a rotating propeller blade emits a phase-inverted tone that destructively interferes with thickness and loading noise.

A centrifugal multiblade fan uses blades with a leading edge radius of curvature of 0.2 mm or less to stabilize airflow separation.

Ball joint lever arm connects actuator to radial control shafts, eliminating connecting rods and reducing axial bulk.

Segmented louver devices adjust airflow channel curvature to minimize flow separation and turbulence during VTOL mode transitions.