Propellers TRIZ Cases
- Hybrid Aircraft Propulsion With Split Motor Redundancy Control
Dual half-motors and an active rectifier improve hybrid aircraft propulsion reliability, anomaly detection, and voltage adaptation.
- Distributed Inverter Aircraft Propulsor for Lightweight Fault Tolerance
Independent inverter stages drive nacelle-mounted stator coils to cut propulsor weight, noise, and thrust loss from partial failures.
- eVTOL Electric Engine Layout With Shared Oil Cooling
A coaxial inverter, gearbox, and motor layout shares low-volume oil cooling and lubrication to support compact, safer eVTOL propulsion.
- Multi-Purpose Wheel Assembly for Seamless Air-Ground Mode Switching
An electromagnetic clutch and interchangeable blades let one wheel switch between driving and flying modes without separate transport hardware.
- Composite Rotor Blade Coupling for Centrifugal Load Transfer
Tapered metallic couplings transfer centrifugal loads from composite rotor blades to bearing races, improving durability and blade serviceability.
- Hybrid Aircraft Propulsion Layout Without Spanwise Drive Shafts
A hybrid engine-electric propeller layout removes long spanwise drive shafts, cutting VTOL tilt-wing propulsion weight, complexity, and drag.
- Counter-Rotating Aircraft Propulsion Unit With Single-Motor Layout
A single motor with offset stator stages drives two counter-rotating propellers, cutting hub size, mass, airflow loss, and noise.
- Aircraft Fan Oil Transfer Cartridge for Blind Axial Assembly
A cartridge-style oil transfer layout uses blind axial assembly and integrated bearings to cut misalignment, wear, and maintenance in variable-pitch fan modules.
- Fan Module Oil Transfer Bearing Layout for Misalignment Control
A plain bearing flanked by roller bearings lets the fan module oil transfer assembly absorb radial movement, cutting wear, misalignment, and service effort.
- Tail-Rotor Actuator Damping for Fuselage Vibration Cancellation
Active hydraulic actuators detect tail-rotor vibration frequency and generate opposite-phase damping to cut fuselage noise and wear.
- Helicopter Pitch Link Boot and Cap Cover Without Zippers
A removable boot-and-cap cover protects helicopter pitch links from debris and ice while avoiding zipper wear, extra parts, and added weight.
- Fibrous Preform Shaping With Laser Guides for Yarn Orthogonality
Laser-projected warp and weft markers guide fibrous preform shaping to preserve yarn orthogonality and keep blade properties consistent.
- Electric Propulsion Flight Control for Fast Thrust Response
Dynamic torque commands let electric propulsion aircraft respond faster to disturbances, improving flight stability and safety.
- Auxiliary Oil Supply Valve Layout for Zero-G Engine Control
A pump and 3/2-way valve redirect oil from an auxiliary tank to keep vane actuator control stable during zero or negative g.