Power Installations TRIZ Cases

A non-marring motion limiter block stops RAT door linkage over-rotation, protecting clevis parts from handling and installation damage.

Controlled servo valve actuation drains aircraft hydraulic fluid through an existing port while preventing hydraulic fuse closure and extra maintenance.

A two-position hydraulic valve restows a ram air turbine with less manual effort while avoiding added electrical components and system complexity.

A three-phase switch monitoring circuit uses cross-phase voltage detection to find faults and verify operation when no neutral reference is available.

Coordinated manual and CVT control offsets gear-shift speed changes to keep aircraft generator input stable without enlarging the drivetrain.

Real-time selection of APU, PCA, and ground power balances cabin cooling speed with lower fuel use and CO2 emissions during ground operations.

An integrated banjo-and-base swivel cuts parts and seals to two while allowing line repositioning with lower friction and fewer leak points.

A flight core isolates payload power demands, dynamically shifting module states to protect critical UAV functions and endurance.

Pre-cooling the cabin and shedding ECS load during climb cuts engine demand, lowers temperature stress, and preserves cabin comfort.

Concave inner socket sections redistribute bearing contact stress to curb fretting corrosion and fatigue without silver plating.

A cylindrical manifold integrates filter, inlets, outlets, and quick couplings to cut aircraft ground-service fluid module size and weight.

A hybrid hydraulic-electric wheel drive meets taxiing peak loads without oversizing the motor and stores braking energy for reuse.

Pressurized-oil actuation lets a rotorcraft clutch switch from freewheeling to bidirectional torque transfer so a secondary engine can assist the main rotor.

Mechanical torque transfer between distributed aircraft actuators maintains symmetry and limits overloads during jam conditions.

Rolling elements at ejection jack pivot points cut friction, preserve force and stroke, and reduce iterative shimming during assembly.

A replaceable fuse releases the resilient member under overload, cutting mount stiffness and limiting airframe load transfer.

Monitors three SPDT phase switches without a neutral by comparing line voltages to detect faults and maintain safe operation.

Speed matching between engine and turbine shafts enables smooth clutch engagement, lower wear, and independent accessory drive.

Hybrid fuel-to-electric VTOL architecture extends flight time while redundant autopilot and avionics improve passenger-carrying safety.

An axial solenoid and spring-driven piston replaces bulky RAT actuator linkages, cutting size, weight, wear, and part count.

A transverse bevel-gear accessory gearbox cuts gas turbine nacelle volume and drag while driving multiple engine accessories.

A towershaft and bevel-gear layout drives multiple accessories in less space, cutting engine nacelle volume and drag without losing drive reliability.

Internal coaxial cable routing through gimbal arms and shafts keeps UAV camera links sealed, dustproof, and free from exposed wire interference.

Distributed propulsion and independent flight control enable a cargo aircraft to shift from VTOL hover to efficient high-speed biplane flight.

A rotary solenoid and slotted unlocking element cut actuator release force, reducing weight while improving vibration tolerance.

Lunular concave sections in a ram-body inner surface cut contact stress with a spherical bearing, reducing fretting corrosion without silver plating.

A close-fit mounting element and torsion springs balance actuator forces in a RAT release mechanism for repeatable deployment and stowage.

A cam on a rotational rod replaces wear-prone cross-rods, unlocking a spring-biased linkage with lower tolerance sensitivity and complexity.

Three communication layers—radio, mobile, and satellite—add bandwidth redundancy and failover for electric aircraft links.

A switchable clutch lets a rotorcraft secondary engine add main rotor power while preserving one-way drive, fail-safe operation, and autorotation.

A one-piece strut integrates gearbox and drive sections to remove extra bearings and gear coating steps while preserving ram air turbine power transfer.

A forward core-compartment gearbox layout cuts axial packaging limits and thermal exposure while improving accessory integration and maintenance.

A biased bypass clutch lets a rotorcraft secondary engine add main rotor torque on demand while preserving freewheeling and emergency power capability.

A failsafe bypass clutch lets a secondary engine power the main rotor when needed while preserving freewheeling overrunning operation.

A clevis-engaging motion limiter adds a soft stop to RAT door linkages, preventing over-rotation damage during handling and installation.

A pressure relief bore vents trapped air during electron beam welding, preventing weld voids and preserving drive shaft lifespan.

A pulley-based CVT keeps ram air turbine generator speed nearly constant, cutting power frequency variation and reducing gearbox inertia.

A nested inner tube and insulating gap keep motive flow above freezing, preventing ice blockage and preserving aircraft fuel transfer.

A bypassable freewheeling clutch lets one rotorcraft engine drive auxiliaries before flight, then match speed and rejoin main rotor power.

A fuse mechanism releases the resilient member at threshold load, cutting vibration transmission while keeping high normal stiffness.

A low-pressure relief valve redirects hydraulic fluid during ram air turbine restowage to prevent downlock pin and strut damage.

Combining pump-to-reservoir temperature difference with filter differential pressure cuts false positives in hydraulic pump failure alerts.

A transverse bevel gear and shaft arrangement compacts the gas turbine accessory gearbox to reduce nacelle volume and drag while preserving torque transfer.

A shaft-driven separating device pivots inside the reservoir to maintain pump inlet pressure while shortening overall reservoir length.