Internal Combustion Piston Engines TRIZ Cases

A hybrid liveness detection system merges 3D structured light with interactive analysis to verify live faces.

A method monitors SCR catalytic converter health by detecting ammonia slip using BPU and WPA models.

A gaseous fuel mixer uses a check valve member to induce turbulence for efficient air and fuel mixing.

Induction ports direct fuel-oxidizer mixtures to ricochet from internal surfaces, preventing flame kernel quenching and increasing burn rates.

Integrated PTC heater raises fuel temperature rapidly via preliminary action, eliminating auxiliary tanks and reducing energy consumption.

Mirror-image planetary gears shift piston top dead center height, enabling variable compression ratios that improve energy efficiency across diverse fuel types.

Rotatable seals in the intake plenum vary bypass flow to prevent condensate buildup and engine misfires.

An asymmetric combustion chamber cavity reduces cooling loss by preventing the air-fuel mixture layer from contacting the cylinder wall.

Segmented SCR substrates with a bypass valve reduce thermal inertia and improve NOx reduction efficiency during cold starts without increasing back pressure.

A vehicle control apparatus manages engine stop and restart using dual controllers for lane departure prevention.

A route-learning powertrain control system tailors transmission shifting and regenerative braking to individual driver preferences.

Circumferential injection openings with varying areas distribute fuel proportionally to pent roof combustion chamber regions, resolving mixture inhomogeneity.

Radial chamber device directs gas flow perpendicular to electric fields, extending particle exposure time without increasing axial length.

Inhibits engine shutdown when detection sections identify active management work, resolving the contradiction between energy saving and maintenance efficiency.

A gas sensor control apparatus induces constant electric current between electrodes to adjust output characteristics.

A unitary flap cartridge assembly synchronizes rotatable valves to switch between intake tracts.

A mesoporous catalyst composition reduces nitrous oxide emissions using a templated substrate structure.

Nesting an exhaust pipe through the motorcycle frame positions a catalyst for rapid activation without increasing vehicle width.

A titanium aluminide turbine wheel features a closed wheel back with an outer diameter exceeding the connection region to reduce ventilation losses.

Direct fluid contact at the cold side eliminates intermediate heat transfer resistances, boosting electrical energy yield.

Electronic controller coordinates diesel and natural gas injection to resolve trade-offs between fuel economy savings and system reliability.

Segmented heaters and thermal insulation prevent urea freezing while controlling energy consumption to avoid overheating.

Combines a scrubber with a wet electrostatic precipitator to capture particulate matter, eliminating the need for separate demisters.

Welded drive shaft insertion portion reduces contact friction, enhancing durability against harmful factors in high-speed turbochargers.

Segmenting the housing into a standardized base and a customer-specific collar flange eliminates new mold requirements for different borehole patterns.

A control device adjusts reducing agent injection based on catalytic converter storage capacity.

Hydraulic motion decoupling reroutes engine braking power within the same cylinder, eliminating inter-cylinder lost motion linkages.

Multi-hole injector directs fuel sprays into a piston cavity to stabilize combustion, raising exhaust gas temperature for early catalyst activation.

Porous inactive cells in a ceramic body increase near-surface active material density, resolving underutilized volume and improving NOx conversion.

A filling head with a suction window connects the conduit to a degassing circuit to promote gas extraction during liquid tank filling.

Meander-shaped heating elements distribute heat across the exhaust gas stream, resolving uneven thermal distribution that delays catalytic converter light-off.

A cylindrical ring member with an inclined outer surface reduces heat loss from the combustion chamber.

Valve placement reduces passage length while transmission case protrusions enable bearing extraction for maintenance.

A zoned particulate filter uses segmented electrical heaters and a multi-section valve assembly to manage exhaust flow.

Segmented heat shield accommodates thermal expansion through radial deflection, preventing axial collision with the turbine wheel.

Comparing exhaust gas oxygen levels upstream and downstream of the filter precisely identifies regeneration completion, reducing fuel consumption.

A three-layer exhaust catalyst uses distinct palladium and rhodium zones to boost low-temperature conversion efficiency.

A plate-fin EGR cooler uses a bellow to absorb axial deformation from thermal expansion.

Controller monitors pressure differentials during air purging cycles to eliminate trapped air and ensure precise reductant delivery.

Strategic placement of support openings at the second catalyst side improves rigidity while suppressing heat release from the exhaust system.

A compactor air system routes heated exhaust air to the rotating compacting member for dynamic pressure adjustment.

Interdispersing two crystallite types with differing structures in ceria-zirconia particles suppresses crystal growth at 1,150°C.

An EGR duct with a sloped flow path drains condensed water via gravity, preventing intake side corrosion without increasing engine room size.

An integrated exhaust manifold directs flow between two parallel turbines using control valves.

A processing unit ascertains exhaust gas catalytic converter fill levels using upstream sensor data and integrator models.

Adsorbed natural gas system stores fuel at low pressure using porous materials, reducing tank costs and safety risks.

Heat exchanger cools high-pressure exhaust gases using low-pressure flow upstream of the turbocharger turbine.

Segmented clamp arms and intermediary pin prevent pipe rotation and sagging during vehicle assembly.

A combustion chamber injector tunnel opening features a central protrusion and lateral grooves to redirect gaseous fuel flow toward the cylinder.