Internal Combustion Piston Engines TRIZ Cases

A dual flow path particulate sensor uses a heater and fine filter to detect soot presence via temperature differential.

A test circuit calculates pressure drop from average pump duty cycle to monitor reductant delivery performance independently of pump variability.

Deflection walls in a separate mixing housing improve evaporation completeness while minimizing device volume.

A dynamic mathematical model forecasts vehicle journey data by adjusting parameters based on measured input values.

Air cleaner sits above the turbocharger and catalyst unit, preventing heated air intake while maintaining compact vehicle width.

A double center of rotation piston expands fluid in an open cycle to generate mechanical work without connection valves.

Quality-based sample selection reduces manual annotation costs and minimizes overfitting during iterative model training.

A multi-task recognition network detects pedestrian location and attributes in parallel, eliminating separate models to reduce device resource consumption.

Real-time gas analysis corrects the SCR control model to maintain conversion efficiency while minimizing ammonia slip from aging catalysts.

A junction member routes exhaust gas through separate flow paths to protect downstream components.

Weighted temperature estimation adjusts SCR catalyst reductant storage levels, preventing wastage during rapid exhaust thermal changes.

Segmented concave surfaces in the engine intake port resolve the trade-off between high flow rate and stable tumble gas flow.

A vehicle control system estimates battery state using existing sensor data to manage start-stop transitions without extra hardware.

A segmented combustion chamber structure with a small interspace zone controls in-cylinder pressure and temperature during the primary combustion period.

An integrated tank assembly uses a common wall to merge the retention capacity, preventing liquid spitback while reducing device complexity.

A PM sensor uses a partition wall with smaller upstream pores to accumulate particulate matter uniformly.

Regulated ducts transfer compressed air to turbine intakes, preventing excessive exhaust gas cooling and maintaining boosting performance.

Dynamic temperature adjustment prevents thermal stress and cracking during particulate filter regeneration by adapting to soot loading.

Slidable combustion chamber gates adjust volume in a rotary HCCI engine, resolving detonation risks while maintaining high compression efficiency.

A closed circuit coolant circulation line enables natural convection cooling for a reducing agent injection module.

A detection system calculates upstream and downstream NOx averages to generate a linear correlation factor for malfunction alerts.

A toroidal wastegate plug maintains contact with the seat to ensure reliable sealing under operational stress.

A dual catalyst exhaust system controls additive supply via road data estimation to maintain substoichiometric conditions in the first reduction device.

Rhodium alloy particles inhibit precious metal sintering, maintaining catalytic activity for hydrocarbon and carbon monoxide removal.

A variable valve duration apparatus adjusts intake valve lift using multiple cams and a controller to match engine operating conditions.

A fuel injector unit uses a sealing fluid chamber to prevent leakage of ultra-low viscosity fuels.

A fuel supply system for outboard motors uses a downward-facing drain pipe on the cooler to enable complete fuel removal during tilt-up maintenance.

Machined support ring surfaces enhance gasket adhesion to resolve undulation issues and prevent unburned fuel leakage in turbochargers.

An electronic control card uses a temperature sensor to detect hydraulic fluid leaks and interrupt power supply.

An adjustable cap varies pre-chamber volume to maintain combustion stability during low load conditions.

Segmented modular components enable high-performance engine operation in enclosed environments without internal heating or efficiency loss.

Meandering ceramic heating elements distribute heat evenly to prevent hot spots and eliminate complex insulation requirements.

Integrates thermostatic valve housings into a charge air cooler cover to enhance structural stiffness and vibration resistance.

Controller compares commanded versus estimated reductant flow to identify stuck injectors, blockages, or leakage errors in SCR systems.

A thermostat with an internal heat-sensing portion adjusts a valve to control exhaust gas flow in the heat exchanger.

Angled mixing plate arms generate turbulence to disperse ammonia gas, resolving homogeneity bottlenecks in selective catalytic reduction systems.

A spring-supported compensation element expands the connector volume to relieve ice pressure from freezing urea solutions.

A reducing agent tank strainer uses a facing portion to reduce internal gap volume and maintain filter surface area.

Centrifugal force in a spinning chamber separates particles from exhaust flow, avoiding backpressure while capturing emissions on porous material.

Convex curved root corners on actuator output levers distribute shear loads at swaged engagement interfaces.

Liquid fuel boosting means flush residual liquefied gas from high pressure pumps.

A thermoelectric power generation device uses duct thermal expansion to maintain pressure contact with outside plates.

Pivoting divider and nozzle vanes optimize exhaust pulse energy utilization while reducing knocking sensitivity in gasoline engines.

Extrude honing finishes aftertreatment housing surfaces to promote diesel exhaust fluid shedding and prevent crystallization buildup.

A saddle-type vehicle uses a judgment controller to detect driver demand and automatically engage the clutch for seamless travel state transitions.

Zoned oxygen storage in the three-way catalyst reduces fuel consumption during NOx purge by routing gas through low capacity regions.

A rotating barrel engine uses a synchronizing mechanism to hold pistons stationary during combustion for optimized thermal efficiency.

Segmented notches and thermal insulators block heat conduction to the bearing housing, preventing oil coking and maintaining bearing stability.

A synchronous machine module uses active power detection to control rotational speed profiles without physical resolvers.

A turbine baffle separates twin volute outlet portions, preventing pressure pulse interference between bypass passages and reducing flow impedance.