Internal Combustion Piston Engines TRIZ Cases

Protruding portions on the outer peripheral wall distribute thermal stress to inhibit segment separation during particulate matter regeneration cycles.

Composite oxide support with ceria and praseodymia resolves fuel lean inefficiency and sulfur poisoning in three-way catalysts.

Connecting ducts merge separate cylinder bank flows gradually, preventing thermal warping and stabilizing turbocharger operation.

A dual threshold brake pressure detection unit manages engine stop and restart conditions to maintain system performance.

Segmenting combustion stages within the rotor reduces emissions while maintaining power output.

Fins in intake manifolds reduce airflow rotation to enhance swirl uniformity across engine banks.

Phase adjustment mechanism reduces intake overlap to suppress knocking while maintaining exhaust pressure.

Discrete guiding means position resistive wires to form heating surfaces on complex shapes while maintaining electrical safety in conductive fluids.

A selective catalytic reduction control system calculates urea injection based on stored ammonia differentials to maintain conversion efficiency.

A catalyst featuring a promoter clathrate where high heat-resistant oxide covers the promoter component particles.

Asymmetric piston valve recesses balance forward and backward tumble flows to stabilize swirl flow orientation.

A flow diverter mechanism directs exhaust gas to specific regions of a gas permeable body, reducing cold-start warm-up time and ammonia slip.

Flame jets from an auxiliary combustion chamber ignite lean fuel at the piston's raised portion, suppressing knocking and enhancing efficiency.

Integrated membrane vents gas during filling to eliminate spitback and remove separate vent lines.

A one-piece molded waste gate valve integrates the shaft and valve element to eliminate relative rocking motion.

Compressed air mixing with catalytic exhaust gases prevents high temperature damage while maximizing energy utilization from the turbine.

A piston combustion chamber with an annular lip directs fuel jets to impinge on arcuate walls, enhancing mixing homogeneity.

Coolant pipe routing through vertical space under the fuel tank prevents freezing of reducing agent while reinforcement plate protects against pinching.

Micropore and macropore zones in the filter partition walls manage temperature differences during oxidation, preventing cracking.

An injection nozzle with alternating fuel and torch channels ignites main gas via hot pre-combustion flow, preventing misfires during load changes.

Local quality creates a scavenging-side cavity and flat exhaust surface to reduce piston heat load while maintaining thermal efficiency.

A thermoelectric module uses a central and peripheral assembly to trap heat from hot fluid flow.

A liquid coolant circuit transfers exhaust heat to a Rankine cycle fluid, driving an expansion machine to generate mechanical energy.

Segmenting exhaust signals during LNT regeneration prevents SCR overloading and reduces ammonia slip by isolating specific chemical contributions.

A thermoelectric generator uses a thermal expansion member to adjust heat transfer from vehicle exhaust.

A machine learning model predicts real-time carbon monoxide concentrations using existing exhaust gas sensors and engine control parameters.

A vibration waveform detecting portion calculates a correlation coefficient to determine knock magnitude for precise ignition timing control.

A piston bowl with a reentrant surface and swirl pocket enhances combustion stability in low compression natural gas engines.

A user terminal configures parameter values for vehicle drivability and traveling characteristics.

Angled oxidizer channels create a swirl and vortex in the mixing chamber, ensuring complete combustion and reducing engine-out emissions.

A gas fuel injection valve employs a tapered transition between throttle and nozzle holes to prevent flow separation and suppress noise generation.

A gas fuse detects corrosive gases via corroding metal wires, preventing electronic damage in SCR systems.

A planetary gearset links a turbine, compressor, and electric machine to vary rotational speeds across operating conditions.

A urea SCR diagnostic device monitors NOx purification rates and volume discrepancies to detect dosing valve abnormalities.

Segmented wear crowns in a valve seat insert reduce contact pressure by 40% and double service life while maintaining gas flow efficiency.

Estimates ammonia storage mass in SCR catalysts to optimize injection, preventing false malfunction alerts during transient engine conditions.

A multi-stage turbocharging system with a flow-control device directs exhaust gas to low-flow and high-flow turbos based on cylinder activation status.

A dynamic NOx setpoint adjusts reducing agent injection based on outside temperature to optimize catalyst performance.

A vehicle speed control method alternates active and passive motion phases to optimize engine operation.

Reticulated foam elements in a charge-air cooler generate nonlinear flow paths that increase cooling surface area and volumetric efficiency.

A cruise control system adjusts droop characteristics based on real-time vehicle operation data to tailor speed settings.

A three-layer lean NOx trap catalyst uses ceria-doped materials to enhance storage efficiency and conversion performance.

Segmented pre-combustion zones reduce flame traversal distances, achieving higher peak pressures and faster piston velocity in large internal combustion tools.

A fumed silica insulation cover with heatproof fabric eliminates metal welding paths to reduce heat loss and accelerate exhaust temperature rise.

Integrating exhaust guidance into the carrier housing eliminates separate pipeline sections, reducing weight and volume for compact engine integration.

An engine system integrates a turbocharger arrangement with an air cooling assembly to deliver compressed air for combustion.

A sloped muffler housing guides condensate to a collecting tube, which feeds an inducing tube that expels liquid to the outlet pipe.

Stacked thermoelectric modules with flexible support maintain thermal contact under stress, recovering energy from engine exhaust.

A curved hole-forming portion guides an upstream end portion to cover its outer-peripheral surface, reducing pressure loss in the exhaust gas flow path.

A cooling air guide cover directs airflow along the crankcase side face, reducing lube oil temperature and preventing fuel hose damage.