Machines/Engines TRIZ Cases

Powder-metallurgical valve guide segments materials to balance heat conduction with wear resistance, eliminating complex coating steps.

A sensor device fuses radar and time-of-flight infrared signals to detect objects in industrial automation detection areas.

A segmented powder metallurgy valve guide uses copper infiltration in end pieces to boost thermal conductivity and lubricity.

Anchoring a diesel injector needle with a helical spring prevents uncontrolled rotation that alters fuel flow characteristics.

Flexible filter support creates interference fit within fitting cavity to secure element, preventing particle contamination in high-pressure fuel systems.

Welding a bolt inside a flange bore creates a lightweight fastening sleeve, reducing material usage and production costs in high-pressure rail accumulators.

Segmented trailing edge flutes break down vortices into smaller structures, dissipating energy and minimizing edgewise vibration damage.

Rotating variable-width blades cut angled composite tows precisely, eliminating gaps and waste between adjacent courses.

Downward projections and support bracket stabilize the curved intake manifold, preventing tumbling during assembly.

A three-way solenoid valve manages pressurized fluid to actuate two intake valves independently within a single cylinder.

Positioning a slat device away from the blade surface mitigates flow separation in root regions, increasing energy production while reducing structural loads.

An inclined planar shear web resists multidirectional loads in a prebent rotor blade, preventing tower strikes without requiring complex out-of-plane curvature.

A radar measuring device determines phase differences to establish a linear functional relationship for precise measurement value determination.

An LED and photodetector pair mounted on a manometer tube generates a digital signal when fluid blocks the light path.

A pilot-controlled dual-mode pressure relief valve regulates engine oil distribution network pressure by redirecting flow to the reservoir.

Chemical adsorption modifies surface stress in nanoporous metals to induce macroscopic strain, eliminating heat generation from electrical actuation.

A contact member engages a driven shaft before friction shim installation to prevent relative sliding.

Replacing electronic sensors with a self-regulating mechanical valve eliminates hydraulic lines, reduces component count, and lowers manufacturing costs.

Segmented partition members with elastic seals allow selective detachment from the chassis to expose engine accessories while maintaining dust prevention.

Temperature-controlled recirculation module manages fuel flow paths to introduce thermal energy into the filter element.

Dual measurement channels in a radar level gauge determine liquid-vapor interface level and density distribution using distinct signal properties.

Motor servo and excitation current control stabilize grid frequency despite varying wind input, eliminating costly AC-to-DC conversion losses.

A unified controller coordinates integrated and dedicated actuators to suppress rotorcraft vibrations.

Segmented acoustic barriers decouple airflow from noise propagation, reducing emissions while maintaining efficient heat dissipation in wind turbine generators.

An inward locking tab on the tubular sleeve prevents axial disengagement of the replacement head from the handle stem.

A pivotable indicator arm contacts an opaque fuel tank and extends through a seat opening, eliminating expensive electronic sensors.

Segmented flywheels rotating in opposite directions cancel gyroscopic forces, increasing energy density without expanding the system footprint.

Segmented flexible sections with adjustable curvature reduce wake turbulence while maintaining structural stability through dynamic shape changes.

A frictional weld joint uses specific bead height ratios to enhance structural integrity in thermoplastic assemblies.

Separate probes measure beverage and cleaning fluid levels to resolve contradictions between measurement precision and reliability.

Load indicators detect blade shifts and shocks during transport, preventing mid-tip damage and reducing repair costs.

Carbon fiber cables reinforce wind turbine blades, reducing weight while maintaining structural integrity against aerodynamic loads.

A resin coating on the drive ring inner surface reduces sliding friction against the guide ring in variable geometry turbochargers.

External fuel pump with front suction port and partition member prevents fuel shortage during low levels.

Cutting a single sheet plate into a seamless fuel rail structure improves material yield while maintaining durability at 50 MPa pressure.

Bobbin venting conduit relieves trapped fluid pressure in the blind bore, stabilizing armature displacement and improving fuel injection precision.

Intermediary retainer clip prevents axial movement and rotation of fuel injectors to maintain delivery precision.

A buoyant dock with corner floats moves relative to fixed pillars to generate electricity through electromagnetic induction.

A control system regulates turbine rotor speed and acceleration profiles using real-time condenser pressure data.

An electropneumatic transducer uses an angled compressed air inlet to overcome static friction forces during extended stoppages.

Integrating auxiliary unit lines into the base plate eliminates separate routing, reducing manufacturing costs and installation space.

Controller varies electrical power from the bus based on cold-soaked conditions to reduce energy dissipation while maintaining adequate lubrication.

A compressor cleaning apparatus injects high temperature steam and hot air into the gas turbine interior to remove deposits from blades.

Central frame structure houses the fuel pump, protecting it from side impacts without thickening pivot plates or increasing vehicle weight.

A hollow poppet valve filled with coolant and inert gas enhances heat dissipation in internal combustion engines.

Segmenting the spool valve into distinct regions prevents hydraulic competition between detent and phasing circuits, ensuring accurate cam phaser positioning.

A two-piece piston uses a separate expansion sleeve to exert permanent prestress on the screw connection between upper and lower pieces.

One-way hydraulic brake in fuel pump actuator slows control rod movement, reducing kinetic energy and impact noise against the suction valve.