Machines/Engines TRIZ Cases

An integrated puller on the bearing sleeve lets turbomachine inner races be installed and removed from one axial end without specialized tools.

Embedded radio transmitters in keg chimes enable low-energy location and fluid-level tracking, reducing loss and manual inventory errors.

Dynamic voltage feedback keeps a hot surface igniter at target temperature, reducing thermal stress and extending service life.

Controlled nitriding creates a supersaturated nitrogen valve seat surface without a white layer, improving wear resistance and dimensional stability.

Alignment pins and internal plates position pre-installed turbine auxiliary packages accurately while reducing field welds and on-site assembly work.

Controlled nitriding creates a supersaturated nitrogen valve seat surface without a white layer, improving wear resistance and fit accuracy.

A conductive coiled spring creates redundant shaft-to-body contact to ground static discharge without interfering with valve movement.

A downstream discharge valve and particle sensing divert contaminated lubricant before it reaches wind turbine gearbox and plain bearings.

A reversible oil-flow, filtration, and sedimentation setup enables complete fan gearbox oil exchange while recycling waste oil and removing impurities.

A valve-linked collection vessel stabilizes vacuum pressure and speeds switching between extraction and drainage with lower maintenance.

Annular seal recesses match radial elastic deformation in a discharge control valve, reducing fretting wear and preserving sealing under pressure cycles.

Hard drilling forms stepped fuel-system orifices with sharp edge control, replacing AFM to cut cycle time and maintain accurate flow rates.

A lower cylinder-block damper placed between middle cylinders absorbs vertical and lateral crankshaft vibration to cut resonance and cabin noise.

A plastically deformable drain shield lines a drainage aperture to deflect debris-driven erosion, corrosion, and wear while preserving flow.

A single-piece graphite gas distributor improves azimuthal propellant symmetry in electric propulsion while cutting assembly cost and handling higher temperatures.

A plastically deformable drain shield lines drainage apertures to block debris-driven erosion, corrosion, and wear while preserving flow.

Multiple lubrication routines vary oil timing, feed rate, and injection phases to cut cylinder wear, corrosion, and oil use in slow-running marine diesels.

Rotating centrifugal passageways vent crankcase air while separating and returning oil, improving pressure control and reducing pollution.

By drilling injection holes before forming the cavity, this nozzle process avoids blind-hole wall damage and relaxes laser depth tolerance.

A keyed leg-and-puck tool locks into the rotor bore to apply axial pulling force without slippage or damage during compressor stage disassembly.

Interconnected vacuum and drain valves stabilize vessel vacuum during fluid extraction while speeding drainage and reducing maintenance.

A twist-lock filter sleeve connection uses positioning grooves and blocks to resist vibration loosening, cut noise, and simplify ATV intake assembly.

Composite deviation, time, and angle parameters help calculate a faster return path to the ideal route for stable moving-body transport.

A self-winding spool uses one-way bearings and frictional hub control to keep belt tension stable without complex gearing.

A single-piece injector sleeve combines filtration, calibration, and stop-ring functions to cut assembly cost and reduce particle-related degradation.

Pressure-difference data matrices help detect abnormal gas pipelines, estimate likely causes, and trigger targeted pressure adjustment and inspection.

Dual membranes and protective structures keep oil from clogging vent pores, preserving gas permeability and pressure equalization over time.

A moving body in a sodium-filled valve chamber boosts conduction and convection to lower engine valve temperature and extend service life.

Alternating turn orientations absorb resonant vibration in a valve spring, reducing spring failure, wear, and multi-spring manufacturing cost.

A stationary and rotatable support assembly turns large composite parts safely into discrete angles for inspection and treatment.

Rigid guide anchors on two housing parts replace heavy external rail supports, enabling precise wind turbine drivetrain assembly and disassembly.

PWM voltage control keeps a hot surface igniter at target temperature despite voltage fluctuations, reducing overheating and extending service life.

Adjustable clamping or spreading secures a measuring flange on thin-walled or plastic containers without threads, reducing mounting effort.

Keys on segmented legs lock into a puck groove inside the rotor bore, stabilizing axial stage separation and preventing rotor damage.

A keyed leg-and-puck mechanism locks inside the rotor bore to apply axial force without tool slip, preventing rotor stage damage during disassembly.

A lower cylinder-block dynamic damper between mid cylinders absorbs resonance vibration and cuts engine radiation sound into the cabin.

A PVD coating on steam valve rod and bush surfaces limits oxide scale buildup, prevents galling, and extends inspection cycles.

Extended end bearing surfaces suppress lateral force during compression while preserving end-coil rigidity through controlled axial displacement.

Maximizing blow-by flow area at idle draws more hydrogen from the crankcase into the intake passage, reducing leak risk during maintenance.

A sealed tool-access chute guides waste oil into a collection container while minimizing splashing, leakage, and cleanup during drain plug removal.

Recesses and protruding contact surfaces improve plastic part demolding and vibration-weld joint strength while reducing mold adhesion and resin use.

Reciprocating leverage beams, sprockets, and one-way clutches turn a generator shaft continuously to cut fuel use and maintenance.

An elastic-bridge actuator and fixing member hold display depth precisely while using power mainly during depth changes.

A separate sensor passage tracks crankcase pressure without main-flow pressure drop while limiting water vapor intrusion and icing.

Metallic end rings anchor composite plies so an actuator cylinder can contain fluid pressure, transfer loads, and reduce aircraft weight.

A downstream turbine placed in the valve pressure recovery zone captures wasted flow energy while improving duct flow control accuracy.

Induction-heated piston parts are rotated under controlled pressure to form a homogeneous weld with minimal flash, stress, and cracking.

A below-bowl micro chamber and friction-stir-welded plug cut piston crown weight while preserving compression ratio, mixing, and integrity.

A constant-volume boot and bellows manage pressure equalization in bi-level tank water exchange, reducing lift power for continuous generation.

A flexible heat transfer structure stays in contact with a deforming SMA torque tube to speed cooling and shorten actuator cycle time.

An annular insert positions rotor blades at a cone angle between the hub and bearing assembly.

Segmenting the thermal actuator into two partial units eliminates cooling-dependent delays, enabling rapid reset times and precise de-energized positioning.

Segmented blade modules with composite inlays reduce production complexity and enable efficient maintenance.

A dual ball valve system manages fuel vapor pressure and liquid flow to maintain consistent ullage space during dynamic refueling operations.

A vane cell adjuster central locking mechanism uses spring-loaded pins to secure the rotor position.

Merging the fan cover and shroud into one component reduces assembly steps and part count while maintaining protective coverage.

A metallic dimpled doubler secures rotor blade tip caps using staggered fasteners and a flush surface design.

A self-neutralizing air-breathing plasma thruster uses a vacuum arc electron source to generate ions for propulsion.

Averaging upward and downward sweep results eliminates superimposition errors, ensuring accurate vibronic sensor readings despite tight time constraints.

Dual pressure sensors feed a controller that calculates flow-compensated differential pressure to detect filter clogging and prevent rupture.

Embedded carbon foam conducts lightning and heats to prevent ice, maintaining power production during adverse weather.

A wind turbine bearing fault detection method uses frequency segmentation to isolate defect signals from ambient noise.

Segmenting the sensor and function interface via wireless data transmission resolves installation complexity while maintaining system flexibility.

A fuel injector force sensor uses a strain gauge on a sealing membrane to detect pressure.

Extracting higher order harmonic frequency components enables faster oscillator regulation without increasing power consumption.

A wave energy harnessing device uses one-way clutches to couple bidirectional gear rotation to a unidirectional output shaft.

A Hall-effect thruster magnetic circuit shields discharge chamber walls from ion erosion using partial shielding and sacrificial pole covers.

A sensor device switches between active and power-saving modes to reduce energy consumption.

A plastic oil pan features a vibration-influenced surface with reduced rigidity to direct sound radiation properties.

A semiconductor light emitting device electrode structure uses contact holes and a second electrode layer to enable efficient current spreading.

A diesel fuel injector return channel features a widened zone that distributes pressure loads across cylindrical and conical sections.

A radiometric measuring device uses a gamma emitter modulated at a specific frequency to generate a distinct useful signal.

A capacitor with a cavity dielectric senses electrical changes to determine aerosolizable material levels.

Deployment fluid modifies polymer properties to prevent premature expansion during wellbore installation, enabling precise timing control.

Splitting the coil housing into identical half bodies simplifies press-forming, reducing production costs while maintaining magnetic efficiency.

An internal pipe within a blow-by gas connector circulates hot gases to heat the orifice, preventing icing without adding external heating devices.

A polyester fiber pre-filter assembly installs within the OEM air duct to capture airborne particles before they reach the primary filter.

Optimizing the weight ratio of carbon nanohorns to nanotubes in composite electrodes resolves DC durability trade-offs while maintaining high driving force.