Machines/Engines TRIZ Cases

A hollow valve rod and threaded drive nut control reservoir oil flow, reducing mess and effort during vehicle drainage.

Tunable fluid tanks and air turbines adapt wave energy capture across changing sea states.

A film-linked magnet switches on sealed sensor circuitry during mounting, preventing premature battery discharge in hazardous environments.

This tubular turbine uses a fan and electromagnetic induction to generate localized power from airflow in compact HVAC spaces.

Multiple kites share flight space through separable couplers and tethers, helping prevent collisions and tether entanglement.

This case uses electrically conductive porous carbon to heat sealed air, enabling quiet actuation without valves or harmful fluids.

This case uses fastening elements and displacement sensors to secure blade shells during mould rotation and reduce manual inspection.

Variable fluid power is matched to digital demand by adjusting generator load, avoiding storage while reducing turbine failure risk.

This case uses modular precast segments for pumped-storage hydropower, reducing on-site construction time and environmental disruption.

Injection-molded shroud portions and a removable screen protect the radiator from debris without obstructing fan airflow.

This spar cap assembly uses extension channels to guide and protect optical fibre cables while reducing infusion gaps and wrinkles.

This case uses interchangeable thrust rings and a hydraulic piston to manage rotor axial movement during gas turbine maintenance.

A hydraulic turbine and diaphragm valve reduce water hammer while recovering surge energy.

Light absorption and a reflective assembly provide reliable, real-time fluid-level measurement without refill recalibration.

A grid plate and smaller bores divide the vibration body for resonance across low and high intake-noise frequencies.

This wind turbine case uses a shroud and sliding contact to control lightning paths, protect bearings, and limit RF interference.

This case pairs inclined SMA wires with flexures to provide motion gain while resisting couple and limiting lateral loads.

Low-viscosity oil additives reduce boundary friction and improve engine fuel economy.

A vehicle-mounted sensor wirelessly sends grit levels to a land-based display, supporting continuous monitoring and timely refilling.

A direct-drive nacelle layout reduces yaw bearing overhang loads and maintenance.

This optical sensor adapts its transmitter spot and receiver field of view to exclude adjacent contours and improve detection accuracy.

Markov Chain Monte Carlo analysis fits Gaussian echo pulses to detect low fluid levels without complex probe hardware.

This case uses larger integrated fiber tows in 3D woven or braided preforms to strengthen flange corners and reduce cracking risk.

Historical measurement data and current restrictions set level-measurement start and end times while balancing quality and energy use.

This case uses coupling plates and dual-side support to reduce throttle-body moment, vibration, and intake manifold support burden.

An extendable arm and pivot joint adapt fin motion to flowing water or air, converting kinetic energy into electrical power.

Combining the lightning down conductor with the blade web simplifies manufacturing, reduces mass, and supports aligned receptor bolts.

A lithium battery and switching circuit adjust ignition voltage by temperature, sustaining combustion while limiting overheating.

A bendable surgical end tool uses wires and pulleys to preserve intuitive directional control and reduce operator learning difficulty.

A multi-directional end tool uses wires and pulleys to match operator rotation, reducing control errors and the learning curve.

A heated annular structure inductively cures fan case adhesive locally, improving cure ramp rates and liner bond durability.

Carbon strips target high-load zones while a drillable glass-fiber stiffener lowers blade mass, cost, and repair difficulty.

A first SMA line drives a swing arm while a second controls elastic braking, extending stroke with zero retention energy.

A twisted, coiled polymer microtube with an embedded resistive wire enables milliwatt actuation and fabrication in under 3 minutes.

Joule-heated porous carbon actuates a movable surface without valves or harmful fluids.

External antennas read RF reflections through barrel walls to track fluid level and alcohol content without invasive sampling.

A bypass flow path uses supply and return pumps to heat oil and control low-temperature pressure without added heaters.

A fuel regulator and bypass cooler help prevent boiling while returning cooled fuel to tanks near hot vehicle components.

A direct rotor connection and front/rear bearing layout simplify nacelle assembly while reducing yaw bearing overhang loads and maintenance.

Pressure fluctuations threaten pump durability; a shaft supports the spring and stabilizes priming check valve movement.

This saddle-type vehicle air cleaner uses a supported electrical component to cover the intake port, blocking foreign matter while preserving case capacity.

Cross-spring elements and SMA wires provide precise tilt and rotation while limiting out-of-plane bending forces.

This case normalizes measured current against nominal voltage to distinguish heater damage from voltage fluctuations.

Relief-shaped flange contours let tower shells separate for transport while preserving geometry and stability during reassembly.

An energy-storage circuit switches impedance during radar measurements to suppress conducted disturbances without costly galvanic isolation.

This case combines used wind blade sections with connection elements to create rigid load-carrying structures and reduce crushing energy.

Fiber-reinforced elements strengthen the shroud transition section, improving impact resistance while reducing containment weight.

Fluid-height torque enables modular electricity generation without complex energy facilities.

This engineering case uses superelastic SMA hysteresis to move and hold a two-degree-of-freedom actuator without continuous power.

This case addresses bulky SMA autofocus drives with buckle and bimorph actuators reaching over 0.4 mm Z-stroke in a low profile.