Internal Combustion Piston Engines TRIZ Cases

Bubbling air through heated fuel in a vacuum-regulated chamber vaporizes droplets, eliminating incomplete combustion and reducing harmful emissions.

A coupling device uses a cam surface and flexible arms to lock pipes securely without threading.

Low-melt temporary fasteners secure turbocharger components during assembly, then melt to eliminate hyperstatic rigidity from thermal expansion.

A protective sleeve creates a pressurized intermediate space around an exhaust pipe, preventing dust ignition while avoiding overheating of machine parts.

Modulating the exhaust tuning valve creates pressure variations that reveal differential pressure hose disconnections in gasoline particulate filter systems.

Segmenting SCR and SCRF catalysts into a common housing lowers component volume and manufacturing cost while maintaining NOx conversion.

Modular stator and rotor assemblies reduce moving part complexity, improving maintenance accessibility without disassembly.

Upstream and downstream selective reduction catalysts treat exhaust streams in distinct thermal zones to optimize nitrogen oxide conversion.

A predictive model control system adjusts combustion engine actuators to minimize a cost function incorporating nitrogen oxide and carbon dioxide emissions.

Misalignment limiting projections on valve lifter end caps prevent cam rotation errors, reducing wear and premature failure in internal combustion engines.

TiO2 converts to TiN during pressureless sintering, eliminating harmful glass phases and boosting high-temperature wear resistance.

A controller adjusts hydrostatic transmission operation based on operator-selected modes to match power-shift response characteristics.

A method determines minimum heating means and amplitude for exhaust aftertreatment device light-off based on driving profiles.

A dual spark plug system segments ignition duties between a conventional plug and a prechamber unit to handle varying load conditions.

A longitudinal channel in the rear wing mudguard evacuates selective catalytic reduction fluid to prevent paint damage and clogging.

Spherical linkage joints absorb vibration and reduce clearance noise while biasing elements maintain contact pressure.

Pressure differential monitoring detects ammonia depletion or tampering in solid storage media, ensuring SCR system reliability.

Replacing palladium with iron or copper in platinum catalysts reduces resource costs while maintaining cold start performance.

A turbo-compounding system uses a bypass passageway and control valve to manage exhaust flow between turbines.

A control section adjusts the engine output speed increase rate based on catalyst temperature to manage exhaust gas flow.

Segmented casing sections create cooling cavities at interfaces, simplifying manufacturing and lowering replacement costs for damaged components.

Asymmetric exhaust passage configuration merges cylinder flows with reduced collision likelihood, suppressing discharging loss.

Integrating a supercharger into a monolithic housing with parallel intercoolers reduces device complexity while enhancing convective cooling efficiency.

Integrated heat shield thermally insulates the reducing agent line, preventing urea decomposition and thermal stress in high exhaust gas streams.

A single multi-port valve redirects exhaust flow between dual inlets and outlets to bypass catalyst devices.

A convexly curved tubular body flattens under prestressing force to prevent inward buckling and maintain consistent thermal contact across temperature ranges.

Segmented intake and exhaust injectors use oxidizing fluids to oxidize unburned fuel, resolving high emission trade-offs from incomplete combustion.

Opening cylinder gas feed valves removes air from the receiver, preventing methane release during liquid to gas fuel switching.

A control module evaluates regeneration events against fixed thresholds to generate pass or fail status messages.

An engine air intake device mitigates noise from pressurized air impingement on bent passages by integrating a vibration suppressing part.

A cylinder head design connects exhaust manifolds via a shut-off element to adapt gas volume for turbine charging.

Reducing pump power to 10-30% of normal operation cools the SCR dosing unit after vehicle shutdown, preventing overheating and minimizing noise disturbance.

A urea injection control system adjusts reducing agent supply based on ammonia sensor feedback to maintain NOx purification performance.

Radial cooling water sprayers deliver fan-shaped fluid spray toward the inner diameter of marine exhaust manifolds.

An object recognition unit classifies preceding entities as pedestrians or vehicles to prevent unnecessary engine restarts and preserve fuel economy.

Angled vanes create torsional vortex flow in the exhaust passage, reducing back-pressure and improving engine breathing efficiency.

A filter assembly integrates a gasket with the filtering material to seal the reductant storage container opening.

A starter device pushes out a pinion gear to mesh with a ring gear before rotary-driving the motor for engine restart.

Molded zones in the metal foam accept electrodes directly, eliminating complex connecting elements and improving cold start reliability.

A controller calculates diesel oxidation catalyst plugging rates using differential pressure sensors to manage engine operations.

A hybrid vehicle control device charges the battery using engine power to generate exhaust pressure for water discharge.

Segmenting the flow chamber prevents working medium decomposition by limiting initial heating surface area before counter-current flow.

Laser-cut portions on min-flow stops define the adjusting ring angular position, maintaining stable exhaust-gas throughput despite wear.

A separating membrane isolates the pump drive from corrosive heat transfer media, reducing tribological wear on moving parts.

Synergistic quaternary ammonium and dicarboxylic anhydride derivatives clean fuel injector deposits in high-pressure gasoline engines.

A turbocharger uses a fuel-driven second turbine to accelerate the compressor shaft rapidly during transient engine operation.

An ammonia generation system heats ammonium hydroxide to produce gaseous ammonia, eliminating urea decomposition requirements and reducing system complexity.

Automated PTO gearbox ratio adjustment resolves fixed gear limitations by enabling dynamic speed adaptation for varying power requirements.

Zeolite-like metal-organic framework with ana topology separates linear paraffins from branched isomers using precise pore aperture control.

Segmented catalyst layers with optimized pore volumes prevent sintering and sustain purification at high space velocities.