Internal Combustion Piston Engines TRIZ Cases

Continuous fresh ethanol replenishment overcomes thermal degradation limits, enabling higher operating temperatures and improved thermodynamic efficiency.

A vehicle drive system captures exhaust heat to generate steam for a turbine-driven electrical generator.

A 60-degree exhaust duct bend creates turbulence to distribute reducing agents evenly across the flow cross section.

A cerium oxide-zirconium oxide mixed oxide with a solid solution structure enhances platinum dispersibility.

Segmented exhaust pathways with independent valves enable targeted thermal management, reducing energy loss during cold starts.

Adding a downstream ammonia slip catalyst converts excess ammonia, extending aged SCR bed life while maintaining NOx conversion efficiency.

Oppositely inclined tongue portions reduce instantaneous flow passage narrowing and blade vibration in twin scroll turbines.

An expansion turbine cools over-compressed intake air to reduce manifold temperature and prevent engine knock.

A fuel supply system cools unconsumed engine fuel via heat exchange with liquefied gas from storage tanks to stabilize delivery.

An engine control device separates exhaust gas recirculation and filter fracture diagnosis processes to prevent interference between measurement signals.

An internal projecting portion segments the intake manifold flow path to divide and disperse air, resolving uneven distribution caused by flow deflection.

A heat exchanger design featuring continuous irregular structures on inner and outer cylinders to manage thermal stress through elastic deformation.

Organic fibers form high-aspect-ratio pores in the underfloor catalyst coating, enhancing gas diffusivity during transient high intake air mass conditions.

An insertion rod advances into the cylinder bore to optimize pressure and reduce unburned fluid waste during expansion.

An ignition device monitors battery voltage to halt energy supply during load dump states.

A buoyant barge power supply adjusts voltage and frequency for ships while adapting to water level changes.

Segmented branch paths and a detour route manage exhaust gas temperature gradients, reducing device length while maintaining high heat transfer efficiency.

Thermal expansion in a housing reservoir drives air exchange through valves, preventing fluid ingress and stabilizing temperature for sensitive elements.

A flow diverter modifies exhaust gas velocity upstream of the reagent injector to enhance mixing within the exhaust conduit.

A vehicle engine control device manages engine stop and restart during coast drive using brake pedal operation detection.

Non-contact magnetic detection resolves measurement precision trade-offs in variable compression ratio control.

A spark-ignition engine design with specific piston-to-valve clearances and a constrained stroke-bore ratio.

Buoyancy lifts a flexible injection pipe to keep the valve dry, preventing freezing damage while enabling efficient fluid flow.

A dosing unit sits inside a separate tank bottom chamber to extract liquid reducing agent directly.

A vehicle controller monitors driving parameters to determine driver behavior and overrides engine shutdown during performance-oriented operation.

Segmented catalyst zones trap phosphorus to protect oxidation capability against contamination.

A control unit manages waste heat recovery system temperature by predicting engine shutdown events to adjust cooling fluid flow.

Segmented exhaust gas flow mixes heated streams with NO2-rich streams to raise particle filter temperature, preventing thermal damage during regeneration.

A manually serviceable cooling water strainer strains solids from marine propulsion cooling water using a removable plug to prevent sprayer blockages.

Segmented piston cavities guide tumble flow along the crown surface to maintain uniform gas velocity.

A diesel engine design reduces geometric compression ratio below 17:1 to enable high boost pressure operation.

Curved cylinder head sections create a hemispherical combustion chamber roof that enhances tumble flow, resolving suboptimal burning rates from flat geometries.

Calculates ammonia slip amounts via temperature differences to resolve sensor complexity trade-offs while improving NOx reduction control accuracy.

Filter regeneration triggers correction value computation using downstream NOx peaks, resolving accuracy loss from exhaust gas interference.

Segmented shielding walls stabilize flame kernels and clear residual gases to limit combustion phasing errors.

An ignition control unit adjusts voltage, current, and spark duration to optimize combustion energy delivery.

Segmented apertures create opposing water jets that improve gas cooling across operating ranges while preventing upstream migration and corrosion.

A fuel rail design uses integral valve bores extending through the outer surface to create a direct outlet path for constant pressure delivery.

Electronic ignition timing control calculates rotational speed reduction to prevent kickback without torque limiters, ensuring smooth riding experience.

Diesel piston geometry with a circumferential protrusion and rising portion prevents air-fuel mixture interference, reducing black smoke generation.

A dual turbocharger system adjusts motor output to maintain boost pressure during electrical faults.

A tubular heat dissipater integrates heating elements into a fuel rail to stabilize liquid temperature through thermal conduction.

Stationary sealing pins on the cylinder wall reduce structural wear and gas leakage by maintaining constant contact with the rotating oblong rotor.

Segmented guide portions direct fuel at different angles to stabilize jets and ensure even dispersion throughout the combustion chamber.

A heat-resistant adapter structure isolates a boost pressure sensor from an intake manifold to prevent thermal damage.

An elastic seal compensates for plastic housing deformations caused by charge air pressure pulsations, preventing bypass flows.

A perovskite composite oxide supported on an oxygen storage material enhances catalytic activity through precise particle size control.

A method calculates an end-of-service-life ratio using running average regeneration times to predict ash loading in diesel particulate filters.