Internal Combustion Piston Engines TRIZ Cases

An inverted supercharger system uses interlaced intake runners to optimize airflow distribution.

Routing the reducing agent supply pipe through the exhaust duct leverages natural convection to prevent thermal degradation of the urea solution.

A dual sensor assembly measures exhaust gas components to enable precise control of selective catalytic reduction systems.

Curved optical fibers extend light paths through urea solutions, resolving measurement precision issues caused by temperature variations and contaminants.

A length compensation arrangement maintains tension between exhaust heater components using differential thermal expansion.

Segmented expansion chambers balance opposing forces to reduce vibration and back pressure, increasing rotary engine power output.

A fan moves ammonia gas from a urea tank to an oxidation catalyst, reducing odor when operators open the tank.

A switching flap incorporates a damping element to prevent airflow disruption caused by high-frequency vibrations.

Adaptive hierarchical pooling extracts significant information from audio signals while retaining complete event boundaries.

Auxiliary bombe transfers LPG from main storage to lower pressure, enabling refilling when vehicle tank pressure exceeds station limits.

Thermoelectric converters transform waste heat into electrical energy, reducing thermal load and cooling requirements.

CZMLA catalyst support maintains thermal stability and oxygen storage capacity while reducing platinum group metal usage in emission control systems.

External recesses on the bush surface allow deformed housing material to lock in place, maintaining secure retention despite thermal expansion mismatches.

A single open exhaust chamber collects gas from all cylinders while a unified intake chamber distributes charge air uniformly across inline opposed-piston engines.

Segmenting the converter and placing a heater between regions reduces temperature gradients during cold phase operation.

Offset discharge and takeout ports on a purifying device reduce flow resistance by separating gas streams in an L-shaped pipe.

Dual pre-chambers with central injection create near-stoichiometric mixtures that ignite lean main chamber fuel, improving economy and reducing NOx emissions.

Three-stage turbocharger with intercooling reduces energy consumption while achieving supercritical injection pressure.

Dual sensing circuits with selective Noxcat and non-catalytic filters determine NOx levels by measuring resistance differences, reducing cross-sensitivity.

Alternating injection cycles bypass inaccurate flow meters at low loads to prevent NOx rises and reductant slip.

A turbocharger scroll bypass mechanism redirects exhaust flow to raise gas temperature.

Combined supercharging system integrates mechanical, electrical, and exhaust gas propelled turbo systems on a common shaft.

Dividing device splits exhaust gas into partial flows guided in opposite directions, achieving homogeneous mixture without excessive back pressure.

A segmented exhaust post-treatment system uses an additional catalytic device to convert unburned hydrocarbons.

A radially movable guillotine valve flap regulates bypass flow in multi-stage turbochargers.

A pressure relief circuit with a switching device returns gaseous fuel to the storage vessel.

Separating turbochargers on opposite sides resolves poor space utilization while maintaining two-stage functionality.

Segmented flow paths in the single air duct attenuate engine noise at low RPM while minimizing flow resistance at high speeds.

A dual-fuel gas turbine engine adjusts hydrocarbon and hydrogen flow ratios to manage combustion temperature.

A controlled ash deposit on the diesel particulate filter stabilizes soot load density, preventing runaway exothermic reactions and reducing fuel consumption.

A controller determines exhaust flow rate using NOx sensor signals and fuel consumption data to calculate the air-fuel ratio.

Removing nozzle flanges from the second shaft reduces pressure loss while maintaining stability against tilting and foreign substance entry.

Segmented antenna array design expands millimeter wave radar field of view beyond standard limits, reducing blind zones and system complexity.

A diagnostic device calculates oxidation catalyst degradation using thermal history time and heat generation quantities.

A Laval nozzle in the secondary air path accelerates gas to sonic velocity, stabilizing mass flow against voltage fluctuations.

A capacitance-based particulate matter sensor measures electrostatic changes to monitor filter collecting efficiency in real time.

An aluminum heat exchange member with a bypass passage removes coolant bubbles, preventing thermal deformation in stainless steel housings.

Die stretching elongates header mounting holes to increase brazing area, preventing solder cracking and leakage under vibration.

Segmented modules with phase change working fluid recover waste heat, reducing manufacturing costs and improving system reliability.

Segmented pressure sensors at the inlet and outlet feed a controller that calculates differential pressure, resolving measurement errors from long tubing.

A supercharger configuration manages rotor cavity pressure using a dedicated ring seal arrangement and air vent system.

Segmented groove trap mechanisms capture sliding energy to resolve the contradiction between simple chamber structure and efficient fuel utilization.

Coordinates valve lift and phase shifting to eliminate throttle losses and stabilize combustion efficiency during cylinder switching.

A nitrogen oxide sensor diagnostic method sets oxygen concentration in the first chamber to an increased value.

A portable gasoline tool ignition system replaces inductive coils with a DC power source and MCU to ensure reliable startup at low rotation speeds.

Tilted injector installation hole with expanded surface area guides fuel spray toward ignition plug.

Arcuate piston indents redirect fuel jets into spiral paths, segregating flow regions to prevent wall interaction and uneven burning.

Separating cross-sensitive NOx sensor signals via deviation parameters enables precise urea dosage regulation while minimizing chemical consumption.

Throttled inner sleeves create negative pressure that accelerates exhaust gas flow, stabilizing particle deposition regardless of sensor orientation.