Internal Combustion Piston Engines TRIZ Cases

Integrating diesel particulate filter and selective catalytic reduction cases via a urea mixing pipe for unified vibration.

A purge passage check valve directs unidirectional fluid flow to an exhaust injector, preventing corrosion from water vapor in residual fuel removal.

A honeycomb bonding layer uses controlled fine and coarse pores to maintain low Young's modulus after heat treatment.

A marine diesel exhaust emission control system injects a dispersing product into cooling water to emulsify pollutants.

A fuel and gas mixing structure directs premixed streams into the combustion chamber.

Segmented catalytic converters use filling level sensors to regulate ammonia dosing, minimizing slip and improving nitrogen oxide conversion.

An integrated emissions cleaning module combines DOC and SCR catalysts within a unified housing structure.

Controller estimates reductant deposits using upstream and downstream NOx sensor data to prevent premature SCR catalyst aging from excessive regeneration.

External downstream collecting passages reduce exhaust resistance and pressure loss, improving engine output and fuel efficiency.

A single support tube concentrically mounts both cones, resolving alignment complexity while defining the aspiration zone.

Segmented charge air lines supply cooled compressed gas to a prechamber and main combustion chamber in a turbocharged engine.

A diagnostic sensor measures the NO conversion rate to detect catalyst degradation in real time.

A motor driven power steering system corrects torque offsets using a magnetic field detection module to maintain stable steering assistance.

Segmenting reed valve covers eliminates connecting members and branches, reducing assembly steps while maintaining precise secondary air distribution.

Estimating soot mass flow during regeneration triggers depollution liquid injection to absorb excess heat and prevent runaway overheating.

Segmenting the catalyst into layers with specific ceria-zirconia ratios resolves high-temperature performance limits.

Strategic air outlet ports diffuse airflow to prevent overheating and extend purification component lifespan.

Segmented pre-combustion chamber parts with asymmetric locking enable tool-free assembly, preventing rotational misalignment during maintenance.

Dynamic air injection adjusts the air/fuel ratio to maintain catalyst temperature, achieving over 90 percent carbon monoxide abatement at lower cost.

An oscillating assembly induces vibrations in an exhaust line to agitate particles and prevent buildup.

Non-uniform pore distributions in the partition walls resolve the contradiction between high purification efficiency and low pressure loss.

Extracting the urea water filter from hidden hoses to a cover-mounted position resolves maintenance accessibility bottlenecks.

Virtual external force calculation adjusts control parameters based on sensor detection conditions to prevent driver discomfort from abnormal readings.

Segmented sealing members constrain rotary valve displacement to eliminate collision noise against bore portions in internal combustion engines.

Pulse detonation drives a toroidal piston in continuous rotation, eliminating reaction plates to reduce device complexity while increasing power output.

Dual-angle fuel injection creates separate mixing zones in a diesel combustion chamber, reducing pollutant emissions from incomplete fuel oxidation.

Porous metallic layer on exhaust outflow side distributes reducing agent into fine droplets, preventing condensation deposits on cold surfaces.

Dual cartridge segmentation and feedback monitoring resolve safety risks of gaseous storage while maintaining precise NOx reduction timing.

Air pocket indentations in the jacket-cooled exhaust manifold reduce core count during casting while maintaining surface temperature compliance.

Centrifugal valve flaps seal against the housing wall to eliminate slide wear and improve reliability in rotary engines.

Segmenting downstream NOx sensor signals allocates output between nitrogen oxides and ammonia, eliminating time lag from polynomial fitting.

A calculation method estimates NO2 concentration using oxidization and reduction indices derived from standard sensor data.

A vehicle stop start system initiates engine restart sequences based on real time speed thresholds rather than requiring a complete stop.

A tunnel-shaped air flow guiding member separates fresh air from the air-fuel mixture to prevent mixing and increase engine delivery ratio.

A spiral rotor with integrated sliders converts reciprocating cylinder motion into continuous rotary torque.

A dosing method selects the lowest calculated nitrogen oxide conversion rate to determine reducing agent quantity for exhaust gas treatment.

Adjacent reductant and temperature control lines guide through a coupling housing, eliminating electrical heating needs while reducing installation space.

Real-time feedback control adjusts microwave frequency based on reflected power measurements, resolving impedance mismatch issues during engine operation.

Vacuum evaporation concentrates hydrothermal carbonization process water into fertilizer, eliminating bulk transport costs.

A controller starts a hybrid engine based on fluid temperature thresholds to provide cabin heat and transmission lubrication.

A calculation device corrects blow back gas amounts using an overlap center position to determine internal EGR.

A converging bowl piston directs fuel vapor upward toward the spark plug to enhance local air-fuel mixture distribution.

Larger intake-side nozzle holes compensate for low wall temperatures, ensuring uniform flame propagation and restricting knocking.

A secondary air pump assembly integrates a check valve and hall-effect position sensor within a single housing to monitor pump speed.

An onboard treatment unit converts waste heat into hydrogen gas to reduce nitrogen oxides, overcoming low efficiency in conventional aftertreatment.

Movable end pieces compensate for thermodynamic expansions and contractions, preventing structural damage.

A pivotable bimetallic heating element expands to thaw frozen exhaust aftertreatment agent, eliminating insulating air cavities and improving energy transfer.

Segmenting the mixing chamber from a dedicated condensate collection area with a self-service drain prevents water droplets from damaging the compressor wheel.

Cylindrical ignition insert housing pre-chamber and injector modules reduces cylinder head modifications while maintaining engine efficiency.