Internal Combustion Piston Engines TRIZ Cases

Interstage fuel injection between turbocharger compressors reduces compression work and ensures homogeneous fuel-air mixing.

Peripheral discharge placement removes central obstruction to increase exhaust volume capacity while water injection prevents hot spots in the suction line.

A pressure piston actuator with a ball-and-socket joint resolves side loading issues in turbocharger wastegates by enabling full rotation.

An optical fiber transports combustion light to an external photovoltaic surface, generating electricity without complex mechanical linkages or vehicle motion.

Quick-connect purge valve adapter removes residual ethanol and fuel from carburetors using compressed air to prevent corrosion during storage.

A start-stop system uses brake pedal pressure to control engine restart timing and prevent unwanted shutdowns.

Equal-length additive supply lines connect delivery units to a common tank, eliminating suction pressure differences that cause uneven dosing in SCR systems.

Exit tabs on internal combustion ducts channel fuel jets to improve mixture homogeneity and reduce soot formation.

An integration plate mounted to the fuel filter enables bi-fuel conversion by minimizing shared lines and preventing cross-contamination.

Mount cage with firewall struts separates compressor from turbine heat to reduce assembly volume.

Unfired plugging portions within circumferential cells fine-tune pressure loss, reducing fuel consumption and improving regeneration efficiency.

Segmented housing and encapsulated undercuts create leak-tight seals, resolving material bonding complexity in exhaust systems.

Thermal analysis of exhaust gas flow replaces electrical timers, verifying sensor readiness without drawing vehicle battery power.

Pilot subchamber insert creates controlled ignition zone to reduce detonation risk in rotary internal combustion engines.

A gas sensor control device adjusts oxygen discharge amounts using a pump cell to calculate output changes in the sensor and monitor cells.

Auxiliary valves close exhaust ports at medium speeds to reduce charge losses while enabling larger port sizes for high-speed power.

Embedding a metallic conductor inside the ceramic matrix improves heating speed and durability for faster catalyst light-off.

A turbocharger system adjusts coolant flow through the turbine shroud to control tip clearance between the blade and shroud.

An exhaust system injects reactants at an acute angle to the gas flow stream.

Dynamic additive control balances NOx reduction with soot oxidation, preventing filter clogging while maintaining high conversion efficiency.

A coaxial dual solenoid actuator with independent armatures controls gaseous and liquid fuel injection through a shared stator.

Segmenting the aftertreatment, evaporator, and power pack assemblies reduces device complexity while maintaining efficient waste heat conversion.

Branches and apertures in the mixing loop distribute exhaust gases uniformly across the catalyst, resolving non-uniform flow issues.

Localized catalytic layers reduce pressure loss while maintaining exhaust gas purification efficiency.

Intimate palladium-ceria-zirconia contact prevents alumina thermal degradation, maintaining surface area for efficient NOx reduction during cold starts.

A third supercharge path directs electric supercharger output to the exhaust manifold, reducing turbo-lag and stabilizing engine operation.

Segmented media cycles and periodic switching prevent crystallization in dosing devices while maintaining operational time.

Segmented mixing elements welded into a single unit lower manufacturing costs while maintaining effective reductant interaction.

A ceria-zirconia composite oxide porous body with controlled pore diameters facilitates rapid oxygen diffusion through its structured network.

Segmenting the injector volume isolates residual reductant, preventing urea crystal creep and protecting seals from high temperatures.

A single needle fuel injection valve co-injects liquid and gaseous fuels via a restricted flow passage, eliminating complex dual needle assemblies.

Splitting the inner duct into two halves simplifies bent passageway production while maintaining rigidity and airflow efficiency.

A particulate matter sensor uses through holes in an accumulation section to prevent particle adhesion on electrodes.

A variable geometry exhaust conduit adjusts its cross-sectional area to accelerate exhaust gas flow velocity.

Dynamic spark energy adjustment minimizes start of combustion variations, reducing knock and preignition while maintaining ignition reliability.

Units straddle flow paths to generate power, reducing heat conduction losses and overall thickness compared to sandwiched modules.

A supplied water temperature regulator pre-adjusts inlet water heat to prevent NOx and SOx condensation corrosion in the flue.

A grain drying apparatus captures hot air from combine harvester exhaust ports and filters harmful components before directing the cleaned gas to a selection pan.

A control system monitors catalyst conversion efficiency to adjust engine operating parameters and extend exhaust treatment device life.

A pre-chamber ignition system positions electrodes near spray holes to generate a self-growable flame kernel for rapid combustion initiation.

Cascaded training with shared parameters reduces ghosting and artifacts while lowering computational resource consumption.

A crankcase ventilation system routes outside air through the engine crankcase to dilute leaked compressed gas.

An exhaust path valve switches gas to a hydrocarbon trap before light-off, preventing saturation while reducing emissions.

A temperature sensor fillet portion with specific cross-sectional width ratios reduces heat dissipation from element electrode wires.

A controller adjusts ammonia equivalent ratio in an exhaust gas purification apparatus to optimize reducing agent supply.

Segmented rings with rolling elements distribute stress uniformly, resolving uneven loading in pressure reactive pistons.

Metal injection molding creates segmented piston parts joined by sinter bonding, enabling cooling galleries that withstand high peak pressures.

Transmission case exhaust port routes cooling air to the engine without heating from the exhaust pipe, resolving thermal management constraints.

An ultrathin noble metal and ceramic mixed layer reduces oxygen dissociation resistance while maintaining gas diffusion permeability at 200-300°C.

Axial simulation of reductant dosage adjusts injection based on local temperature profiles, preventing ammonia slip during dynamic operation.