Machines/Engines TRIZ Cases

A fuel delivery unit uses a valve to selectively activate a suction jet pump driven by the main pump's propulsion jet.

Printed resistive ink sensors replace mechanical floats to eliminate sticking errors and deliver precise fuel volume readings in irregular tanks.

A float-based oil-level detection apparatus uses a housing with a specific through-hole to stabilize the fluid surface for accurate sensing.

Separate internal and external fan ducts cool the engine and generator capsule, reducing construction volume while maintaining effective thermal management.

A hydraulic steering valve arrangement controls feedback behavior using purely hydraulic pressure.

Segmented bulkhead covers channel cooler exterior air into the engine while screens filter water and particles to prevent damage.

A control section calculates fuel supply rates to stop the pump when flow slows, preventing mechanical damage.

A capacitive level sensor uses a restricted substrate portion to extend electrode width for enhanced capacitance measurement.

A tapered quarter wave coaxial cavity resonator generates corona discharge plasma via radio frequency oscillations.

A vehicle sound transmission system uses a resonator device coupled to the air intake manifold to modulate interior acoustic levels.

A piston layer stack combines heat-insulating and heat-conducting materials to manage thermal distribution.

Segmented forging and laser welding resolve manufacturing complexity while maintaining structural integrity for high-pressure injection systems.

An oil agitation device increases turbulence in the lubrication circuit to convert kinetic energy into heat.

Hydraulic damping from restricted flow channels controls needle velocity, resolving injection speed versus controllability trade-offs.

An external connecting cannula defines the water discharge path, avoiding internal routing that restricts fluid dynamics and increases assembly complexity.

A ball valve injector with a 10-micrometer clearance gap enables precise cylinder lubricating oil dosing in large diesel engines.

Graphite anode and reflector design channels heat via radiation to eliminate active cooling complexity in electrostatic ion accelerators.

An analog-to-digital converter bridges mixing and integration stages, resolving precision-reliability trade-offs in continuous wave radar measurement.

Dynamic speed control prevents steep inclines at trajectory overlaps, reducing porosity in cold sprayed valve seat films.

An Al-Cu-Mg alloy extrusion uses controlled traction during quenching to enhance elastic limit.

Sliding dampers adjust generator air intake holes to optimize combustion efficiency and reduce hydrocarbon emissions.

Shape memory polymer members transform from compact temporary forms to expanded permanent structures that mechanically interlock within wellbore voids.

An integrated body cover with a sandwiched elastic member dampens air cleaner vibrations without adding parts or assembly time.

Tapered side protrusions on a light guide plate engage frame notches to secure component positioning.

Inner wall depressions divert edge flow away from the gap, reducing turbulence and circulation losses.

Switch control circuit monitors gate voltage or collector current to detect misfire status without adding external sensors.

Segmented winglets reduce tip vortex friction, resolving the trade-off between noise control and energy yield in rotor blade aerodynamics.

Strategic fiber placement in the web core prevents delamination under asymmetrical loads while maintaining structural integrity.

Maintaining thicker inner blade sections breaks the mass-length relationship to reduce fatigue loads and increase natural frequency.

Diaphragms isolate corrosive fluids from electrical components in a linear generator, preventing contamination while enabling efficient energy conversion.

Adjustable mechanical elements maintain fabric skin pretension to resolve weight-strength trade-offs in wind turbine blades.

Humidity-responsive particles embedded in polymer matrices generate mechanical force to adjust sweat evaporation rates without external energy.

Periodic switching of the light detector and evaluation circuit reduces power consumption in two-wire radiometric measuring devices.

Changing the cone angle from small values to 60-120 degrees defines preload via torque, eliminating unpredictable axial press-fit forces.

Variable thickness shield eliminates boundary layer tripping steps while protecting blades from erosion.

Service valve assembly connects primary and secondary fuel passages within a single module housing to enable simultaneous drainage.

A composite engine cover uses a rigid substrate overmolded with polyurethane foam to absorb acoustic energy and mechanical vibrations.

A curled winglet structure extends spanwise from the blade tip to form a compact C-shaped geometry that reduces out-of-plane thrust loads.

Magnetic particulates in Teflon fibers boost electrical current density, reducing carbon charring near electrodes to increase heat transfer and thrust.

A detachable heat dissipation assembly mounts to a nacelle ventilation port, directing airflow downward from the generator.

Ground-based guides move modules horizontally to eliminate suspended loads and improve assembly safety.

Nested port sections aligned with the longitudinal axis improve pressure wave influence while maintaining low flow resistance via curved deflecting faces.

Optical and tip sensing units differentiate transition phases from liquid samples to prevent pipetting errors during automated processing.

Repurposing non-producing wells with a submerged mass reduces infrastructure costs while storing renewable energy.

An oil pan chamber uses a movable blocking module to seal through holes during turns, preventing air from entering the oil strainer.

A radar level gauge system uses frequency converters to reduce signal leakage between transmitter and receiver branches.

Segmented hydraulic dampening stabilizes the needle during opening, reducing flow curve non-linearity and shot-to-shot deviations.

Segmented shear web components eliminate excess bond paste and weight penalties while maintaining precise bond dimensions and strength at the spar cap junction.