Internal Combustion Piston Engines TRIZ Cases
- NOx Sensor Monitoring with Staggered Maintenance Intervals
Compare staggered NOx sensor readouts to detect drift while extending maintenance intervals and monitoring exhaust values reliably.
- Urea Injector Attachment Rib for Exhaust Flow Control
A cylindrical attachment rib redirects exhaust gas away from the nozzle, preserving urea ejection and ammonia delivery to the SCR catalyst.
- Vehicle Body Side Reinforcing Structure for Collision Intrusion Reduction
A-pillar, B-pillar, rail, sill, and C/D-pillar members form a grid-like reinforcement skeleton for stronger collision resistance.
- Aftertreatment Regeneration MPC for Hydrocarbon Dosing Control
Temperature sensing and model predictive control adjust hydrocarbon dosing to balance regeneration efficiency with aftertreatment safety.
- Heat Exchanger Duct Insertion for Space-Constrained Intake Cooling
Circumferential coupling and duct insertion support a larger heat exchanger and efficient cooling in confined intake-air installations.
- Hydrogen Nozzle Cap Flow Guidance to Reduce Vortices
An internal flow-guiding body directs hydrogen toward the outlet, reducing vortices and residual gases in engine injection.
- Exhaust Aftertreatment Mixer for Compact Uniform Reactant Mixing
A segmented tubular mixer changes flow direction to mix injected reactant with exhaust uniformly while shortening the reactor.
- Integrated Railway Dispatching and Virtual-Formation Train Control
An integrated decision-maker uses journey data and expert rules to automate schedules and time-optimal train strategies.
- SCR Catalyst NO/NO2 Ratio Measurement for Reductant Dosing
A dynamic SCR catalyst model estimates NO and NO2 ratios to adjust reductant dosing, reducing NOx emissions and reductant slip.
- Constant-Pressure Fuel Mixing for Engine Cavitation Prevention
A mixing chamber, metering control, and variable-pressure pumps maintain fuel ratio and pressure as engine load changes.
- Antebowl Piston Geometry for Transient Smoke Reduction
Rounded rim geometry and targeted fuel injection use an antebowl to improve combustion and reduce smoke during load transients.
- Aqueous Fluid Filter Assembly with Air Metering for Stable DEF Pressure
A pickup section and sub-30% air-metering orifice limit bubbles and help maintain stable DEF injection pressure.
- EGR Valve Support Structure at Cylinder Head Cover Intersections
This EGR device uses cylinder head cover intersections to stiffen valve support and preserve flow-control accuracy during operation.