Internal Combustion Piston Engines TRIZ Cases

Merging oxidation, filtration, and reduction stages into one unit resolves the trade-off between comprehensive pollutant elimination and system complexity.

Oscillating reductant supply pressure enhances exhaust gas mixing within compact aftertreatment spaces.

A turbocharger control rod uses a welded joint inside a guide hole to permanently fix the actuator position.

Plastic plate stacks fill the manifold volume, preventing bypass flows that reduce heat exchange efficiency.

A torque distribution apparatus calculates individual wheel slip rates to optimize motor efficiency across multiple drive wheels.

Integrates diesel particulate filter and selective catalyst reduction via clamping bodies, maintaining exhaust temperature while simplifying engine assembly.

Replacing straight sections with a converging conical geometry accelerates liquid reductant, resolving spray asymmetry and improving deNOx efficiency.

Asymmetric connecting passages inject flames from an auxiliary chamber into a main combustion chamber to direct ignition across varied regions.

Segmented header plate design creates dual contact areas to eliminate air cavities and leakage while simplifying manufacturing complexity.

Multi-dimensional valve inclination compensates for shaft forces to prevent gaps and reduce exhaust gas leakage.

Merging level, temperature, and concentration sensors into one probe reduces system complexity while ensuring accurate NOx emission control.

Segmented rotor magnets create a large stator gap that directs fifty percent of air mass through the motor, reducing compressor lag and thermal stress.

A reflective thermal shield redirects engine heat back toward the source to maintain lower internal temperatures.

A simplified airless sprint and water wash system uses a single pump and manifold to spray compressor inlet nozzles.

A delivery unit valve uses activation and holding currents to switch states.

A storage volume and release valve collect and purge non-condensable gases from waste heat recovery systems.

Contracted flow path accelerates traveling wind to generate negative pressure, eliminating fan complexity while ensuring adequate cooling performance.

Flexible cover seals suction pipe under low pressure and deforms to vent excess urea solution back into the tank, preventing rupture from freezing expansion.

A charge air path shut-off device adjusts an air flap movement characteristic to slow opening speed during turbocharger switching.

A horizontal muffler design reorients the exhaust system parallel to the ground surface.

Ceiling venting opening segments air escape from the filler pipe, enabling gas displacement filling without ammonia vapor release.

A multi-sectional electric heater uses varying cell densities to redirect exhaust gas flow and distribute heat evenly across the catalyst substrate.

Segmented exhaust pipes with variable lengths maintain catalyst activation temperature during cylinder cutoff operations.

A closing jig with a conical tip and truncated pyramidal base inserts into honeycomb through-holes to weld partition walls.

Segmented cleaning logic prevents oil dilution by triggering assist combustion only when deposits fall between defined thresholds.

A kinetic model determines particulate filter loading using existing SCR system sensors and operating material data.

Intake manifold fins reduce airflow rotation, balancing swirl between engine banks to improve air-fuel mixing uniformity and power consistency.

Chromium carbide composite coatings on aluminum alloy rotary engine housings resolve the trade-off between lightweight manufacturing and fretting resistance.

Spray ducts with 80% area reduction enhance air-fuel mixing to reduce soot production in internal combustion engines.

A diesel exhaust system uses segmented SCR catalysts to lower backpressure while maintaining NOx conversion efficiency.

Eccentric inner cylinder rotation eliminates complex power transmission and vibration, achieving stable high-speed energy conversion.

Flattened pipe connecting ends shorten the exhaust purification casing longitudinal dimension without reducing catalyst volume or increasing flow resistance.

A catalyst layer uses low ceria carrier particles for rhodium to maintain activity and high ceria particles for oxygen storage.

Bypass passage routes exhaust around the diesel oxidation catalyst to preserve thermal energy for downstream components.

Asymmetric pre-chamber openings create a tumble flow that convects the flame core, reducing wall heat losses and improving combustion stability.

An ignition control device calculates re-energization timing to suppress electrode wear without adding hardware.

A meandering tailpipe fits within the space between an exhaust muffler and a fuel tank to provide sufficient length for secondary air supply.

A muffler filter housing uses an attachable lock and clamps to secure the cartridge.

Diverging water streams from a segmented spray ring improve exhaust gas cooling across varying engine loads while preventing upstream corrosion.

Real-time hydrocarbon dosing adjusts exhaust temperature for rapid particle filter regeneration while minimizing fuel consumption.

A catalyst monitoring system computes total fuel mass following deceleration fuel shut-off events to classify degradation states.

Routing exhaust pipe laterally resolves sensor arrangement complexity while maintaining ground clearance for off-road mobility.

Segmented exhaust passageways prevent pulse overlap in a dual scroll turbo system, and a septum cooling jacket maintains safe temperatures across the manifold.

A copper block with meandering channels heats fuel efficiently, preventing fluid mixing at welded joints.

A start-stop device evaluates brake pedal dynamics to trigger automatic engine restarts based on driver intent.

A preheating element raises the temperature of a PTC heating element to reduce initial current consumption during frozen liquid additive thawing.

Segmenting a single neural network into basic and optimization networks resolves the contradiction between video quality and device complexity.

Cold flame combustion in a precombustion chamber breaks down long-chain hydrocarbons, reducing pollutant discharge while maintaining heat production efficiency.