Internal Combustion Piston Engines TRIZ Cases

A diesel exhaust fluid tank vent system regulates vapor flow and air admission through specialized modules.

Tapered inlet diffuser distributes air across intercooler outlet opening.

Asymmetric fuel injection ports compensate for active gas flow velocity variations to prevent flame-out and abnormal combustion.

An anti-vibration device uses asymmetric coil and magnet arrangements to drive an image sensor's linear movement and rotation.

Radially distributed spray discharge orifices atomize fuel vapor to reduce particulate matter emissions while maintaining engine power output.

Delayed inlet closure prevents exhaust gas pushback into the crankcase, stabilizing combustion and reducing noise.

High-palladium catalyst article employs ceria-free oxygen storage components to maintain surface area stability during rich aging protocols.

A controller manages vehicle filter regeneration using platooning position data.

A fabricated media line integrates coolant tempering lines alongside the reducing agent conduit to dissipate heat from exhaust gas systems.

A selective catalytic reduction diagnostic method compares upstream and downstream NOx conversion efficiency averages to identify fluid reductant quality.

Optimizing the branching portion sectional area to 0.6 times or more suppresses flow separation and reduces pressure loss in the turbine.

A tender car controller coordinates fuel delivery states to eliminate start-up delays and prevent venting losses.

A pre-chamber moveable element adjusts the orifice opening area to control air-fuel mixture flow during engine compression.

Dynamic temperature comparison logic reduces fluid consumption by activating spray cycles only when specific thermal thresholds are met.

A flexible coupler with a metallic coil accommodates thermal expansion, reducing thermal stress damage on marine propulsion exhaust systems.

Monitoring DOC oxidation performance via NOx ratios resolves low-temperature conversion inefficiencies in diesel exhaust systems.

A base plate module integrates a combined temperature and urea quality sensor with an adaptable electrical interface for flexible configuration.

Mounts the gas regulator to the cylinder head above the flywheel, merging the gas supply device with the engine structure.

An energy management system dynamically distributes recovered exhaust gas electricity between propulsion and onboard grids to minimize operating costs.

A pivoting perforated airflow straightener stabilizes intake flow using dynamic rotation.

A grid-like heating element uses radially successive undulating band layers to form flow-through openings for uniform current distribution.

Dynamic pump capacity control adapts working fluid circulation to variable exhaust gas mass flow, resolving control stability issues in energy recovery systems.

An LPV MPC architecture with Extended Kalman Filter updates minimizes ammonia slip while maximizing NOx conversion efficiency in dual-catalyst exhaust systems.

Spacing one-way valves across the vehicle width prevents heat expansion from reducing effectiveness while maintaining increased secondary air supply capability.

A catalytic converter uses an insulating layer to retard heat transfer to a hydrocarbon trap layer for low temperature adsorption.

A controller deactivates automatic engine start-stop devices during remote rail operations to maintain continuous power.

A conical inlet with rotating guide blades generates vortex flows to mix exhaust gases and scavenging air.

Eccentric planetary traction drive increases normal forces through translative loading planet movement, eliminating turbo lag in super-turbochargers.

A selective catalytic reduction system uses hydrocarbon enrichment below operating temperature to inhibit nitrogen oxide adsorption and reduce emissions.

Sensors mounted on valve carriers detect delivery pulses to enable functional testing of individual fuel pumps without long fuel lines.

A fuel filter module integrates a jet pump to generate negative pressure for enhanced fuel suction.

A diesel piston bowl uses a torus to guide fuel injection toward the central stud.

Complementarily shaped inner block surfaces guide combustion forces against rotating blades, enhancing durability in high-temperature environments.

Controlling pore volume on a porous silica support preserves gas diffusion properties and oxygen storage capacity in exhaust purification catalysts.

Internal cooling fins and external ribs in the connecting pipe reduce thermal load on the active silencer electronics.

L-shaped pipe step portions reduce dynamic flow influence on detection accuracy.

A controller monitors accumulated urea mass and downstream ammonia levels to manage SCR catalyst regeneration events.

A dual selective catalytic reduction system uses staged catalysts and reductant injectors to treat exhaust gases.

Electronic control unit adjusts reducing agent injection based on catalytic particulate filter temperature to optimize nitrogen oxide reduction.

Vacuum evaporation extracts excess water from aqueous urea solution, conserving exhaust heat energy for SCR catalyst operation.

An adaptive prechamber ignition system calculates peak pressure errors to adjust fuel valve commands, resolving combustion consistency trade-offs.

Actuator with actuating rod generates vibration or increased pedal effort to alert the driver of hazardous driving situations.

An exhaust valve interrupts the gas outlet window connection and supplies pressurized fresh gas via the exhaust port to reduce rinse losses.

Pre-elevating vessel pressure minimizes adiabatic cooling during liquid hydrocarbon introduction, reducing material strength requirements.

A piezo stack drives a first piston to hydraulically move a second piston and valve needle for gaseous fuel injection.

A valve ignition prechamber reverses combustion direction to eject hot torches from a lamination duct.

Hydraulic motors drive fuel pumps inside sealed chambers, eliminating electric sparks and preventing explosions during supercritical LNG transfer.