Internal Combustion Piston Engines TRIZ Cases

Dynamic SCR setpoint adjustment using cumulative carbon dioxide release data to optimize reducing agent injection rates.

Baffles maintain tube spacing to distribute exhaust gas evenly, preventing coolant boiling and improving durability.

Perovskite materials replace ceria in automotive catalysts, increasing oxygen storage capacity and lowering release temperatures.

Segmenting the aftertreatment into oxidation and SCR catalysts enables gasoline engines to operate at high air-to-fuel ratios while reducing NOx emissions.

Anti-rotation tabs on a V-band clamp engage coupling posts to align flanges, reducing installation time.

A reductant injector cooling system uses an elevated siphon tank to transfer heat away from the valve through buoyant convection.

A reverse flow hydrocarbon trap uses inverted layer configuration to enhance exhaust gas conversion during engine cold starts.

A heat exchanger tube positioned for horizontal flow connects to vertically oriented outlet risers along its upper surface.

A unified controller calculates fuel flow rates using input power and substitution ratios to manage multiple fuels simultaneously.

Dual parallel ducts divide exhaust flow to reduce back pressure while maintaining high purification efficiency in compact spaces.

Segmented meter panels with blinking indicators and supplemental displays resolve information clarity gaps during exhaust purification cycles.

A rotary engine combustion assembly receives compressed air to drive a power rotor through intermittent firing cycles.

Oxidative cleaning of insulators prevents arcing and power loss, maintaining particulate removal efficiency in gas streams.

Segmenting the exhaust duct with a baffle prevents urea deposits in the heating passage, reducing maintenance costs.

Thick-film dielectric and conductor layers on a stainless steel heat exchanger replace alumina substrates, reducing heat energy loss by 25%.

A diagnostic method monitors differential temperature across an oxidation catalyst device to detect operational status.

Software algorithms estimate fuel sulfur levels from catalyst performance metrics, preventing sulfur poisoning and extending aftertreatment system life.

A reserves module coordinates air and spark control to generate adjusted torque requests for precise engine output.

A rotary machine uses magnetic levitation bearings to eliminate mechanical friction between moving components.

Ridges and recesses on a piston crown direct flame toward the cylinder center, reducing soot emissions by improving recirculation.

Offset retaining arms with variable cross-sections minimize thermal conduction to exhaust gas cleaning modules.

A removal determination device uses upstream and downstream temperature sensors to detect the presence of an exhaust gas purification unit.

Alternating antinode areas in the holding element absorb thermal expansion and dynamic loads while maintaining stable attachment to the carrier.

A conductive hollow tubing coil energizes fuel via the vehicle electrical system to reduce consumption and improve engine power.

A variable spray angle nozzle assembly adjusts reductant delivery ports to optimize deposition patterns in exhaust streams.

Pre-assembled intercooler lid integrates three single-pass cores to simplify supercharger housing installation.

A pressure release valve protects throttle durability by venting excess intake pressure upstream of the throttle valve.

A diesel engine system uses an SCR catalyst with low temperature activity to reduce NOx and PM, eliminating the need for a DOC and reducing complexity.

A vehicle waste heat retrieval system uses a dedicated reservoir and retrieval line to return working fluid from the exhaust gas boiler.

Vibration welded inner joint extends inward to reduce stress concentration in intake manifold passage walls.

A cylinder head intake port uses a partition plate with an auxiliary wall to divide airflow into separate passages.

A reducing-agent tank supply nozzle positioned within a tool box opening for easy maintenance access.

A control system adjusts heater power setpoints using a dynamic response model to manage thermal inertia in diesel exhaust systems.

A temperature model-based control system calculates precise heat output to rapidly activate catalysts while minimizing energy consumption.

A gas and liquid detergent mixer introduces controlled cleaning fluid into fuel lines to dissolve injector deposits without disassembly.

A shared intercooler cools intake air for two side-by-side cylinder banks in a compact engine design.

Direct cylinder gas injection paired with intake port liquid fuel delivery prevents nozzle coking and maximizes thermal efficiency across operating modes.

Merges central rail and air distributor into one component, eliminating external pipes and pressure losses while maintaining electrical isolation.

Segmented dosing modules with dynamic connectors minimize deposit formation and maintain SCR efficiency during maintenance.

A hydraulic motor drives a high-pressure fuel pump to pressurize liquefied natural gas, isolating the drive mechanism from the inflammable fuel zone.

Segmented calculation models reduce development effort by determining reducing agent amounts from intermediate NO2 concentrations.

An exhaust purification apparatus adjusts urea water injection to optimize supply amounts.

Electrically heated catalyst and sub-GPF preheat exhaust to combust particulate matter before main filtration.

A selective catalytic reduction sensor integrates a drop pipe and quality sensor on a support structure to position the bubble diffusion region outside the sensitive area.

A cooling element with fluid channels sits on the thermoelectric element opposite the exhaust manifold to generate voltage.

An electromagnetic linear actuator pump uses active magnetic energy dissipation to increase fluid delivery speed.

Flexible hoses and metal components reduce pump noise while enabling rapid thawing of frozen urea in exhaust gas treatment systems.

Direct temperature sensing replaces complex pressure logic to precisely control fuel heat, reducing CO2 emissions.

Branching fresh air inflow and draining condensed water prevents sensor freezing, maintaining measurement accuracy in cold weather.