Propellers TRIZ Cases
- Aircraft Turbine-Engine Vane Pitch Assembly With Energy-Absorbing Prongs
Elastically deformable retention prongs absorb energy from a detached vane while the platform limits aerodynamic discontinuities.
- Loop-Blade Propeller for Non-Axial Lift and Axial Thrust
Non-axial lift from a rolled tip portion helps looped blades redirect fluid flow into axial thrust for more efficient propulsion.
- Electric Tiltrotor Aircraft With Distributed Propulsion for OEI Control
Distributed electric propulsion replaces mechanical power transmission in tiltrotor aircraft, reducing weight and supporting control after an OEI event.
- Jet Engine Pylon Attachments for Compact Thrust Transfer
Articulated rods and segmented attachments distribute thrust isostatically, reducing attachment size, weight, and aerodynamic drag.
- Hybrid Aircraft Engine Clutch Control for Stable Power Changes
Fuel flow and electric power are modulated around requested output to avoid undesired clutch behavior and reduce wear in a hybrid aircraft power plant.
- Spring-Biased Bonding Tabs for Composite Propeller Lightning Paths
A spring-biased tab maintains contact between a leading-edge metal band and the hub to route lightning through a composite propeller.
- Turbomachine Unducted Fan Blade Sweep Variation for Aero-Mechanical Balance
Height-based edge-sweep ranges balance aerodynamic efficiency and mechanical strength across turbomachine architectures.
- Rotor Blade Pitch Actuator With Dual-Pinion Anti-Backlash Control
Dual pinion gears apply opposing forces to a ring gear, minimizing backlash in rotor blade pitch control during rapidly reversing forces.