Without Power Ampliication TRIZ Cases

Leverage-driven link mechanisms amplify input force to lock a main rod with a smaller power source and less mechanism bulk.

Torque sensing tracks no-back friction wear during retraction, cutting manual inspections while maintaining actuator safety.

A switchable differential lock couples dual gear paths in torque- or velocity-summing modes to prevent unconstrained flight control surface motion.

A dual-mode hydraulic actuator lets landing gear extend under gravity, avoiding high extension loads, heavy structures, and clog-prone restrictors.

Axial shaft shifting lets ball bearings engage helical grooves after harmonic drive failure, moving flight components to a safe position.

A removable cap opens the bearing raceway for replacement while keeping rotary mechanisms compact, lightweight, and serviceable.

A removable cap opens the bearing raceway for fast replacement while keeping aircraft rotary actuators compact, lightweight, and structurally sound.

A braked epicyclic actuator lets an aircraft spoiler stay down after power loss or motor jam while holding loads without continuous motor power.

A spring-biased pedal shaft lock stays engaged without power, then uses magnetic unlocking to cut autopilot energy use and mechanism bulk.

Dual ratchets and an electrically actuated clutch lock an aircraft actuator against runaway motion under high aerodynamic loads.

A planetary gear actuator with selective clutch decoupling improves wing tip reaction time, saves installation space, and reduces drag torque.

A radially movable mating coupling lets the flex spline deform without stress transfer, reducing wear and extending gear life.

Multiple parallel mounting brackets create redundant load paths in a rotary actuator, preventing single-point failure and harmful torque-induced stress.

Tapered flex spline ends and annular channel clamps raise harmonic drive torque capacity while preserving usable volume and preventing rotation.

A cam-guided locking element uses actuator torque to engage a secondary nut on a stabiliser shaft without aerodynamic load or sensors.

Barrel-shaped bearings and curved flex spline teeth spread load evenly, cutting weight, wear, and extra compliance parts in a strain wave drive.

A pivoting pin sliding in a shaft bushing replaces tight scotch-yoke slots to cut deformation, ease assembly, and handle high stress loads.

Dual output arms balance load in a compound harmonic gear, cutting reactive forces, preventing binding, and reducing structural weight.

Different thread pitches create high reduction ratios with fewer parts, lower backlash, and no sliding friction in compact rotary transmissions.

An integral housing flow path removes separate supports and sealants, shrinking valve radial size while maintaining pressure strength and sealing.

A dense-matrix angular velocity controller decouples yaw, pitch, and roll to stabilize oblique flying wing aircraft with lower processing demand.

One-way clutches switch planetary gear paths by rotation direction, matching extension and retraction torque needs without oversizing the actuator.

One-way clutches switch planetary gear paths by rotation direction, matching extension and retraction torque needs while reducing actuator size and weight.

A solenoid-shifted input shaft decouples a harmonic drive so jammed gears or frozen motors do not block free control surface movement.

A laterally offset drive shaft shrinks rotary geared actuator diameter for thin wing leading edges while preserving torque transmission.

Sequential cam-driven engaging members move an aircraft track with zero backlash, high reduction, self-locking, and lower wear.

Opposed flex splines and a shared wave generator balance load and cut twisting forces in compact high-ratio aircraft actuators.

Localized perforations, thinner sections, or corrugations add flex spline compliance while preserving torsional stiffness, torque capacity, and lower weight.

Changed-geometry flex spline sections add local compliance and torsional stiffness to cut strain wave drive size, weight, and cost.

A solenoid-driven disconnect gear lets a strain wave gearbox switch outer ring engagement, improving reverse operation without losing compactness.

Two axially adjacent flexsplines avoid tooth-profile interference in harmonic gear assembly while expanding design and manufacturing options.

Ball cages and indexing gears keep bearings spaced and stable, cutting friction while enabling compact back-drivable rotary actuation.

Tapered flex spline ends and annular clamps secure harmonic drives without flanges, preserving volume while improving torque capacity and efficiency.

Cam-actuated movable teeth drive an aircraft rack with zero backlash, self-locking action, high reduction, better load transfer, and lower wear.

A CFRP cylinder and PEEK bearing ring create a lubricant-free slip fit that cuts actuator weight and friction in aircraft motion systems.

Using sun, planet, and ring gears with the same modulus, this case enables fast epicyclic reconfiguration for different torque outputs and easier maintenance.

Torque monitoring and one-way friction in a drive shaft detect no-back unit wear, reducing inspection needs and wing tip brake complexity.

A three-ring strain wave layout cuts actuator weight and complexity while maintaining torque transfer through elastic flex spline engagement.

A curved cam surface and roller bearings help a flex spline self-align, cutting actuator weight and complexity while keeping tooth loads uniform.

Two linked epicyclic stages share fixed components to deliver high gear ratios in a compact, manufacturable aircraft gear layout.

A ratchet-disconnect harmonic drive gives aircraft actuators high gear ratio with low backlash and safe return after motor failure.

Different thread pitches cut motor torque and gearbox bulk while maintaining linear output and load capacity in aircraft actuators.

An integrated lock motor and linear actuator stop control surface rotation under gust loads without continuous battery current draw.

A latch-triggered gearbox decoupling scheme lets a jammed flight control actuator move to a neutral position while damping unwanted motion.

A foldable wing section retracts during vertical takeoff and landing to cut drag and power use, then extends for efficient cruising.

Different-pitch threaded links create high reduction in a compact rotary transmission, cutting parts, weight, backlash, and wear.

A secondary nut kept in thread contact enables faster load transfer and prompt failure detection in aircraft trim screw actuators.

By moving high-lift support devices into the wing box, this layout frees spars from fuel-tight constraints and opens space for flexible energy storage.

A shared dual-input linkage lets a secondary actuator bypass or assist a failed primary flight control actuator, cutting aircraft weight and cost.

A pre-assembled roller carrier forms the harmonic drive wave generator, cutting parts, assembly time, weight, and failure points.