Machines/Engines TRIZ Cases

External acoustic sensors measure drum wall vibration frequencies to estimate fluid fill levels without internal intrusion.

Spraying phosphoric acid forms an amorphous phosphate layer on steel pistons to anchor anti-friction coatings.

A spray cleaning device cleans aircraft auxiliary power unit turbines through the air inlet without disassembly.

Segmented wings with varying radii capture airflow in low speed conditions while a cylindrical annular rim enhances torque generation.

Segmenting the spinner hub space creates standing room for service personnel, resolving narrow access constraints without compromising aerodynamic integrity.

Tapered channels in the shroud accelerate wind via the Venturi effect, increasing power generation while reducing noise and turbulence.

A capacitive tilt detection system uses existing fluid level sensors to measure capacitance changes for accurate orientation tracking.

A cam lobe profile directs pump piston movement through varying acceleration phases to actuate engine valves.

A wheel-hub driven vertical-axis wind turbine translates wind forces into linear velocity at the circumference to drive a generator for electrical power.

Self-adaptive signal processing algorithm compares current and stored reference measurements to correct errors during power failures or interference.

A fuel injector guide bushing supports the coupler rod to reduce mechanical wear and hydraulic oscillation.

External load cells on support rods measure tank weight, eliminating sensor fouling and reducing maintenance costs in aircraft lavatories.

Integrated inverter cover guides intruding water away from electronic components using a receptacle and drain port, eliminating separate coupler covers.

A porous gasket vent passage routes air from the filter housing inner cavity to a central tube opening.

Deformation elements adjust the mold cavity geometry to counter residual stress distortion, eliminating iterative mold testing.

Asymmetric nozzle pivot redirects force flow to reduce tensile stress, preventing cracks without adding complexity.

Replacing mesh electrodes with projected parts reduces device weight and volume while maintaining displacement force.

Rotating vanes with C-shaped channels harness hydro-kinetic energy from water flow.

Monolithic thermoset plastic fuel delivery components withstand 650°C flames without melting, eliminating corrosion issues from saltwater exposure.

Applying a non-wetting coating to sacrificial fibers prevents infiltrant filling, enabling precise control over channel geometry in ceramic matrix composites.

A portable delivery device injects a cleaning agent under pressure directly onto intake valves to dissolve carbon deposits without engine disassembly.

Shot peening creates a reforming layer that reduces hardness differences, preventing electroless nickel plating from peeling at high temperatures.

Mounting the fuel filter on the surge pot outer wall enables easy replacement without disassembling the delivery unit.

Segmented clamping elements and a converging conical jacket simplify assembly and disassembly while maintaining reliable nozzle positioning.

Integrating a support pin into the rotor through-bore eliminates press-fit components and grinding operations, reducing manufacturing cost.

Serpentine SMA filament routing increases stroke length while maintaining constant force, reducing power consumption compared to solenoids.

An intermediary sleeve reduces internal clearance around a connecting pin, preventing high pressure fuel leakage between circuits.

Threaded engagement compresses a metal-to-metal interface to maintain sealing reliability at elevated pressures above 35 MPa.

Air directing members route airflow through conduits to balance sound emissions from multiple inlets.

Capacitive sensors detect vehicle tank levels with high resolution through controller-driven visual indicator patterns.

Plasticized duct material shrinks onto an inserted fitting during cooling, eliminating welding complexity while ensuring reliable turbocharger connections.

A relief valve uses a Venturi nozzle to stabilize vapor bubbles in the spring chamber for precise fuel pressure regulation.

A wind turbine blade integrates a lightning current sensor to detect strike parameters.

A blow-by gas passage uses a separation wall to change flow direction and trap large oil particles via inertia.

An Al-Mg-Si-Cu alloy composition enhances heat resistance and tensile strength through specific magnesium silicide crystallization.

Segmented actuator bases with universal trenches accommodate variable wire lengths, increasing force output while reducing manufacturing complexity.

Rolling ring bearings enable automatic turbine alignment with water currents, resolving stability and efficiency trade-offs in hydrokinetic energy conversion.

A protective hood covers the fuel supply device using a snap ring closure to secure the unit against external impacts.

Guide walls and recessed ports direct cooling water into flat tube clearances, resolving flow obstruction and improving heat exchange efficiency.

A dynamo uses a secondary air inlet on the housing casing to direct cooler air for enhanced heat dissipation.

A fuel level detection system uses dynamic filtering to display raw sensor data during refuelling events.

A spacer assembly distributes contact stress across a larger diaphragm area to maintain fastener tension.

Helical water screw driven by a point absorber converts wave motion into rotary motion for energy storage.

Float well isolates magnetostrictive level sensors from tank turbulence and temperature gradients.

Valve plate depressions minimize adhesive forces that counteract opening movement, improving sealing reliability through local quality principles.

A rotating machining tool connects to a gas turbine fan blade mount to precisely cut attrition liners.

Capacitive coupling between a conductive ring and the spark plug insulator reliably detects cracks after engine assembly.

A U-shaped clip and fastening bracket secure the injector cup to eliminate bending moments that cause separation and leakage.

A feedthrough device incorporates an internal leak-detection zone with a dedicated cavity and sensor for monitoring fluid communication.

A magnetized Foucault pendulum uses a gear transmission to drive an electrical generator for power production.