Internal Combustion Piston Engines TRIZ Cases

A turbocharger vane guide section directs gas flow radially inward to improve turbine efficiency.

An integrated heat exchange circuit warms urea in the doser and storage tank, resolving cold weather heating inefficiencies without adding device complexity.

GPS-based prediction coordinates exhaust filter regeneration with driving conditions, preventing simultaneous parasitic loads that degrade engine efficiency.

A soot load estimation system segments total exhaust pressure drop into inlet, channel, and layer components to calculate real-time particulate accumulation.

A face recovery model extracts semantic features to generate high-quality reference images for detailed texture reconstruction.

Uses oxygen sensor cross-sensitivity to measure hydrocarbon conversion efficiency without post-injection fuel penalties.

A fuel system return line separates liquid and gaseous fuel portions using a dedicated unit to recycle phases.

Optimizing the P/D ratio of a glow plug projecting portion reduces combustion noise by limiting premature fuel ignition.

A dosing control unit switches between storage-based and direct injection ammonia strategies to maintain precise exhaust gas treatment.

Segmenting the exhaust purifier into a catalytic section and a plugged collection unit reduces pressure drop while maintaining high purification efficiency.

Composite quaternary oxide stabilizes specific surface area above 900°C while maintaining high reducibility for nitrogen oxide reduction.

Independent exhaust passages feed a mixing pipe and cavity expansion chamber to generate negative pressure waves for improved scavenging.

An EGR cooler integrates a water jacket around the intake pipe and heat dissipation fins to lower exhaust gas temperature, preventing unstable combustion.

Segmented thermal reactor zones maintain independent temperatures, preventing catalyst overheating while enabling simultaneous oxidation and reduction.

A particle cleaning device uses a temperature gradient to induce water supersaturation and grow exhaust particles for removal.

Segmented scavenging ports resolve the contradiction between swirl generation and speed leveling across variable compression ratios.

Segmented jets orient downward for stratified charge stability near the spark plug while spraying across the cylinder to improve homogeneous mixing.

A loop heat pipe recovers exhaust heat via a self-pressure valve that adjusts gas flow, preventing excessive pressure buildup during high discharge.

A supporting oxide layer partially embeds platinum group metal particles to prevent sintering and maintain active sites.

Integrating a three-way valve into the heat exchanger merges cooling circuits, reducing system bulk and leakage risks.

A reducing agent metering system switches to a high-load operating mode by lowering the upstream SCR fill level.

Tapered stem and insertion hole eliminate clearance to prevent vibrations and noises while ensuring complete circulation hole closure.

A hybrid turbocharger uses a thrust collar and bearings to stabilize the generator shaft.

A reducing agent metering system transitions between vaporized and atomized liquid forms to optimize injection upstream of a deNOx catalyst.

Angled exhaust aftertreatment device redirects flow over a catalytic substrate outer circumference to enhance reductant mixing.

Pivoting sealing flaps engage housing surfaces to contain pressure, reducing friction losses and thermal disparities in the rotary engine.

Segmenting primary and secondary batteries prevents single-battery depletion, ensuring reliable engine restarts while powering high-load devices.

A turbine-driven pump propels crankcase fluid through a ventilation circuit with a separator, preventing lubricant contamination of engine components.

Vehicle-mounted device integrates high-precision maps with enhanced radar sensors to expand detection range for intersection safety.

Calculating hydraulic system stiffness from pressure profiles identifies dosing valve blockages without requiring additional mass flow sensors.

Separate start-up cartridge releases ammonia gas quickly while insulated main cartridges maintain operating temperature.

Controller initiates combustion to warm the reforming catalyst, preventing unreacted ammonia discharge during engine startup.

A dedicated flushing device cools the catalyst bed during passive engine phases.

A freezing determination unit monitors ambient and liquid temperatures to detect pipe freezing states in engine exhaust systems.

Partitioned cylinder head cooling manages residual gas temperature to reduce NOx emissions during rapid load changes.

A cone-shaped catalyst with radially oriented pores directs exhaust gas through a divergent flow channel to enhance heat transfer.

A hydraulic accumulator stores pressurized fluid to eliminate turbo-lag during low power driving.

A regional digital scale network model replicates physical weigh-in-motion systems to enable accurate vehicle load identification across wide areas.

A gas intake device mounts a valve and heat exchanger on a rigid plate attached directly to the cylinder head.

A pre-chamber fixed in a predetermined angular position relative to the cylinder head directs ignition flares through transfer openings into the main combustion chamber.

A wall-flow catalyst uses distinct coating densities in upstream and downstream layers to boost oxygen storage capacity.

Friction welding joins plastic end pieces to create annular resonance chambers that attenuate engine intake noise while preventing acoustic leaks.

A nozzle component uses a specific iron-based alloy composition to enhance wear resistance in high-temperature turbocharger environments.

Segmenting fuel paths with a non-conductive barrier stops metal shavings from bridging heating elements and causing electrical shorts.

Lateral discharge trajectory prevents gearcase impingement and backpressure in steerable outboard motors.

A neural network in the ECU calculates deposit amounts from travel state quantities, enabling predictive maintenance without disassembly.

A catalytic converter valve bypasses the substrate to reduce back pressure and thermal exposure during high-performance operation.

Asymmetric oval openings in converging-diverging channels broaden flame jets, resolving combustion efficiency limits in lean-burn engines.

A compressed natural gas filter housing routes engine coolant through internal passageways to warm the assembly.