Internal Combustion Piston Engines TRIZ Cases

Housing-mounted power conversion unit uses passive isolators to attenuate vibrations, reducing fatigue on thermal-hydraulic tubing.

A pressure differential rotary engine uses cam assemblies to convert fluid pressure into continuous rotational motion.

Relocating atomization to the combustion chamber via a supersonic gas jet reduces nozzle wear from abrasive coal water slurry particles.

Segmented exhaust passages route hot gases through a catalyst bed while cooler flow prevents sulfate formation, ensuring reliable EPA compliance.

Stratified flow maintains consistent fluid properties entering the compressor, resolving density variation issues that reduce efficiency.

A fuel valve integrates a pressurized sealing liquid system to prevent low flashpoint fuel leakage into the lubrication oil.

Segmented turbines and precooling extract work from sub-atmospheric expansion, improving fuel efficiency beyond conventional limits.

Separate boiler flue gas paths enable supplementary firing and a three-way catalytic converter to reduce NOx emissions without ammonia.

Axial arrangement of slit and gap chambers provides wide-band acoustic damping across 2000 to 10000 Hz in turbocharged engine charge air lines.

A tapered outlet nozzle directs exhaust gas to generate negative pressure via the Venturi effect.

A precombustion chamber tip features a tool insert groove at the junction with the water jacket to facilitate component disassembly.

Optimizing the NO2/NO ratio via a two-stage aftertreatment system extends catalytic converter operating periods and reduces precious metal requirements.

A vehicle floor tank utilizes a displaced passage portion to cool components with travel wind, preventing heat damage from nearby exhaust pipes.

Dynamic hydrogen-to-diesel ratio adjustment during startup accelerates engine warming and reduces unburned diesel emissions.

A thermoelectric generator converts waste heat into electricity to power vehicle sensors, eliminating battery replacement needs and reducing wiring complexity.

Asymmetric valve geometry reduces contact pressure at the seat interface, suppressing vibration-induced chattering sounds in turbochargers.

Segmented contour parts on a butterfly valve shaft seal passages against body contacts, eliminating leakage paths without increasing component count.

A reagent injector uses a movable pintle and magnetic coil to atomize aqueous urea solutions.

Segmenting the turbocharger allows high exhaust-gas recirculation rates while maintaining torque characteristics at low engine speeds.

Predict urea crystal build-up by comparing simulated exhaust temperature and mass flow against reference thresholds to prevent forced regeneration downtime.

Segmented optical modules using refraction measure urea concentration while temperature feedback compensates for environmental shifts.

A heated mixer controller regulates power to manage reductant formation and concentration in exhaust systems.

A hybrid powertrain controller opens the clutch during torque reversal to let the electric motor manage driveline torque.

Comparing intake pressure at varying throttle positions resolves detection errors caused by small pulsation widths near full close or open states.

A sine rotary engine uses a sinusoidal rotor housing to convert fluid pressure into rotational motion.

Segmented holder design with insulating intermediaries prevents short circuits while maintaining low pressure loss in exhaust gas lines.

A dedicated cooling passage circulates fuel through the high-pressure pump drive region to maintain lubrication and thermal stability.

A split housing design integrates charge air inlet and regulating components into a single unit.

Spray device delivers liquid oxidation catalyst upstream of the oxidation catalyst to remove accumulated particulate matter at normal exhaust gas temperatures.

Adapting heating output based on catalytic converter aging state reduces cold start duration while maintaining hydrocarbon storage capacity.

Replacing expensive sensors with a passive critical flow orifice simplifies SCR systems while maintaining accurate ammonia injection measurement.

Positioning the exhaust outlet inside the air duct allows cooling air to shield the peripheral wall from high temperatures, reducing drag and material costs.

Integrating an evaporator into a muffler captures exhaust heat to vaporize a working fluid, reducing radiator size and engine cooling space requirements.

Segmenting the catalyst layer into regions with distinct CeO2 concentrations resolves the trade-off between warm-up activity and air-fuel ratio compensation.

A piston lower edge interacts with a crankcase counter-body to control the overflow channel inlet cross-section for ignition mixture entry.

A vehicle gas processing device uses a check valve to direct gas flow toward the intake pipe.

A method determines particulate filter fouling by analyzing the pressure drop curve against exhaust gas volumetric flow.

A bellows-like sealing profile decouples the tank base and delivery module to absorb axial and radial displacements.

An electronic pressure regulator uses a voice coil actuator and feedback control to resolve adaptability complexity trade-offs in gaseous fuel systems.

An ignition timing control unit advances spark angles in fixed cycles to shift engine operation between torque and fuel modes.

A reductant dosing system calculates compensation factors from insertion pressure to adjust subsequent injection cycles for precise fluid delivery.

In-situ sensor arrays detect ferrous particulates in DME fuel, replacing remote lab analysis and reducing vehicle downtime.

A guidance output device restricts fuel economy prompts during exhaust gas purification cycles.

Intersecting bores for the spark plug and pre-chamber gas valve reduce dead space volume to minimize soot formation.

A Rankine cycle waste heat recovery system captures exhaust energy using a downstream heat exchanger and dynamic control module.

An ignition control apparatus manages spark discharge using an auxiliary power supply connected in parallel to the primary winding of an ignition coil.

A vehicle drive control apparatus prevents engine stoppage during unstable behavior to maintain power supply.

Radial case protrusions prevent moveable funnel contact, resolving the contradiction between compact volume and reliable air intake efficiency.

A segmented piston crown with a raised center area directs combustion flame away from cylinder walls.

Merging separate contacts into one electrode eliminates multiple wall penetrations, resolving leakage risks while maintaining uniform catalyst heating.