Internal Combustion Piston Engines TRIZ Cases

A partition plate blocks radiant heat from the selective catalyst reduction device, preventing urea decomposition and extending reducing agent pipe durability.

Dynamic valve timing with blocking members prevents short circuiting, ensuring complete exhaust evacuation while maintaining fuel efficiency.

A variable valve actuation device uses a mechanical blocking mechanism to control rocker arm roller switching positions.

Ozone oxidation converts exhaust NO to NO2, enabling the SCR catalyst to achieve higher NOx conversion rates across wider temperature ranges.

Microporous insulation in exhaust components accelerates catalyst heat-up during cold starts while protecting adjacent vehicle parts from overheating.

Dynamic dosing control adjusts reductant flow based on exhaust conditions.

A denitrification catalyst uses ceramic nanotubes grown on a porous metal structure to enhance exhaust gas penetration.

Intermittent pump operation reduces energy consumption and noise while preventing dosing unit overheating.

A gas turbine performance analysis system corrects fuel flow rate deviations to align computed and measured power output values.

A control method detects battery reconnection to activate the automatic stop-start function without waiting for state of charge estimation.

A diesel exhaust system uses PM deposition monitoring to trigger accelerated regeneration modes.

A single electric pump motor drives both transmission and coolant pumps to maintain system pressure.

An accelerometer mounted on a turbocharger actuator housing detects vibration signals to determine shaft rotational speed without additional sensors.

Intake air cools the wastegate actuator, eliminating complex coolant plumbing and reducing thermal degradation risks.

Merges the coolant circuit with a Rankine cycle using the fluid as the working medium, recovering low-grade heat that separate systems miss.

Segmented hollow conductive elements achieve 90-100% air treatment efficiency while insulated casings protect electronics from overheating.

A steam accumulator stores surplus working medium to discharge into the expander, maintaining consistent power output from the Rankine cycle system.

Object detection model processes images to identify scenes automatically, resolving low precision and efficiency in manual recognition.

Electric motor actuator adjusts intake valve phase to prevent collisions during engine stop.

Dynamic flow switching bypasses the SCR catalyst during low-load operation to reduce backpressure and fuel consumption while maintaining emission control.

Catalytic reforming generates hydrogen-rich gas for a prechamber, enabling stable combustion of highly diluted fuel-air mixtures.

Electric air pump supplies secondary air to the catalyst, resolving space constraints within the outboard motor housing.

Dynamic flap control balances power generation capability against backpressure to reduce vehicle weight and material costs.

Bifurcated exhaust duct routes gas through an electric heater to accelerate urea hydrolysis.

An inclined body and pressure-operated valve extract condensed water from the intake manifold, preventing moisture entry into the combustion chamber.

Widened slit openings in the connection plate allow concave deformation that distributes vibration stress, preventing damage at the tank joint.

RSI-Net shares backbone features between tasks to reduce processing time while maintaining high detection precision on complex road surfaces.

Coordinated control logic synchronizes variable geometry turbine position with bypass valve opening to prevent excessive boost pressure during engine operation.

Heated engine coolant warms the pre-compressor duct wall to prevent condensate formation and compressor wheel damage.

Sensor controller suspends ammonia detection results upon receiving specific state signals indicating interfering gases.

A ship air supply apparatus selects between turbocharger pressurized air and atmospheric air to eject fluid along the hull.

Milling internal spiral surfaces reduces casting roughness and optimizes tongue spacing, increasing efficiency while maintaining high cycle fatigue strength.

Bypass line directs high-pressure exhaust jets onto a turbocharger turbine wheel to accelerate the rotor and increase boost pressure during engine braking.

Active pre-chamber generates high temperature hot jets to ignite diluted fuel-air mixtures, resolving ignition reliability issues at part load conditions.

Heating fuel in a pressure chamber creates a gas-liquid mixture that absorbs pressure pulsations, preventing oil leaks and ensuring stable DME delivery.

A transmission control unit adjusts the speed ratio during engine restart to improve acceleration responsiveness.

Purified reductant fluid minimizes metal contamination to protect the SCR catalyst from poisoning.

A hollow flap valve pivots to extend air transfer duration in two-stroke engines.

Monitoring heater current detects urea cavities in SCR tanks, restoring heat flow and preventing pressure drops.

An evacuated delivery path forms a thermal insulator to reduce heat conduction in liquid additive systems.

A hybrid engine control method adjusts power turbine rotational speed using an asynchronous machine to regulate compressor operation.

A main catalyst with partition walls separates exhaust flows from activation and deactivation cylinders into independent paths.

Vertical placement of DPF and SCR cases above the cooling fan maintains exhaust gas temperature for efficient chemical reactions.

A hemispherical measuring chamber with piezoelectric sensors calculates instantaneous gas flow using temperature and pressure data.

A metering unit delivers reducing agent solution into exhaust gas while a control unit determines efficiency values from downstream NOx sensor readings.

Parallel compartments isolate exhaust flow for periodic hot gas regeneration, preventing filter clogging while avoiding seawater pollution from wet scrubbers.

Merges supercharger and intercooler into a single assembly to resolve engine complexity while maintaining high power output.

Asymmetric wastegate ports compensate for unequal scroll volumes, preventing turbine performance degradation from uneven pressure distribution.

A virtual sensor system estimates diesel exhaust fluid quality using NOx measurement data and engine operating parameters.

An asymmetric multi-orifice fuel injection nozzle directs spray into distinct combustion chamber zones to reduce wall wetting and pollutant emissions.