Internal Combustion Piston Engines TRIZ Cases

Segmented heating devices prevent freezing of the liquid NOx reductant in cold climates, ensuring reliable SCR system operation.

A self-regulating rotary slide valve adjusts its flow duct closure element to route exhaust gas between separated channels.

An annular disk induces back pressure in the exhaust stream to restrict turbine rotational speed.

A sensor device uses a double cover structure with guide members to direct exhaust gas flow toward the detection surface.

A burner partition member guides oxidant flow into specific regions, stabilizing combustion and ensuring stable high-temperature gas production.

Curved orifice surfaces reduce localized hot spots and stress on nozzle bodies while promoting complete combustion of lean fuel mixtures.

Axial displacement of turbine guide vanes compensates for thermal expansion, maintaining optimal gap dimensions and preventing efficiency loss.

Nested tubes constrain the armature to axial motion, eliminating centering shims and reducing friction caused by radial field components.

A tangential housing inlet generates swirl flow to separate oil from gaseous fuel using centrifugal forces.

Bypass pipe and catch tank system prevents misfire during idling by controlling condensed water discharge from the intercooler.

A fuel pump extracts LPG from the storage bombe to pressurize incoming fuel through the injection pipe.

A fluid injector design with a reduced reductant fluid path volume minimizes the space occupied by reductant.

A feature extraction model training method uses cross-modal attention to capture richer global representations from masked multi-modal data sets.

A monopropellant combustion system heats deionized water into superheated steam to drive a radial piston engine.

An engine intake structure uses an asymmetric cover opening to direct fresh air into the duct.

Integrated sealing device merges gasket with flow-guiding net to suppress intake resonance noise while improving installation workability.

An automated diesel exhaust fluid refill system uses an electric sensor and motorized valve to manage fluid levels without manual intervention.

Apertures in the injection plate direct exhaust flow to increase turbulence and evaporation, resolving package constraints that limit mixing performance.

A vehicle control device maintains braking force during engine idling stop to ensure reliable hill start performance.

Replacing expensive platinum group metals with Fe-activated Rh and Ba-Pd compositions lowers material costs while maintaining high oxygen storage capacity.

Nested components inside a flexible seal reduce axial length for lateral engine mounting while maintaining lubrication.

A gasoline direct injection abatement system uses localized catalyst distribution to reduce particulate and gaseous emissions.

Embedded ferromagnetic elements enable rapid light-off, minimizing cold-start emissions and improving conversion efficiency.

Slip joints enable lateral movement of the exhaust conduit in a V-engine valley, accommodating positional tolerances during assembly.

Adding synthetic paraffinic hydrocarbons to diesel fuel reduces oxidation and nitration rates in lubricants, extending service intervals.

Low porosity portions at the end faces of a ceramic honeycomb structure suppress cracks caused by thermal shock during electric heating.

A combined power generation system heats natural gas using pressure difference facilities to drive a gas turbine cycle.

A passive mixer uses convergent nozzles to accelerate air, creating suction for exhaust gas recirculation without active pumping.

An annular recess on the rotary valve prevents uncombusted fuel leakage into the air path, eliminating wear-prone sealing members.

A spherical ball and socket joint in the wastegate arm relocates the loading point to the plug center for precise sealing alignment.

A homogenizing fuel enhancement system mixes liquid and gaseous components into a pressurized mixture with small bubbles for efficient combustion.

A method adjusts exhaust gas recirculation rates to promote nitrogen dioxide generation for particulate filter regeneration.

Master and slave pistons transmit hydraulic motion to engine valves via a mode selector valve, reducing complexity from dedicated switching components.

Segmented cast and built-up shell parts resolve thermal expansion stresses while maintaining mechanical strength and gas temperature.

An inclined surge tank bottom surface guides condensed water evenly to all cylinders, preventing water hammer and enhancing engine durability.

A zirconia-ceria-yttria mixed oxide stabilizes the crystal structure under high temperatures.

A flow divider balances exhaust gas distribution across parallel catalyst members.

Martensitic valve seats with nitrogen and controlled carbon content suppress acidic corrosion from cooled exhaust gas recirculation condensate.

Embedded metal wires heated by an induction coil rapidly raise the ceramic substrate temperature, accelerating light-off and reducing cold-start emissions.

Periodic pulsing of fuel or oxidant shifts fuel properties to reduce NOx and soot emissions without exceeding catalyst temperature limits.

An electronic pressure regulator uses a voice coil actuator to adjust fuel pressure, accommodating engine operating condition variations.

Back-suctioning liquid in pressure lines prevents freezing damage while monitoring counterpressure reduces pump wear and energy consumption.

A pulse turbo charging exhaust system uses smooth curves and independent flow paths to conserve kinetic energy of exhaust gases.

A vibrational lens focuses mechanical waves onto piezoelectric crystals to generate electrical power from engine vibrations.

Segmented parallel DOC and SCR catalyst beds achieve a 50:50 NO to NO2 ratio for effective SCR operations while maintaining low backpressure.

A vehicle air flow control system adjusts spacing between heat dissipation members using shape memory alloys to optimize cooling.

A control device manages exhaust purging using a downstream air-fuel ratio sensor to terminate reductant supply.

A fuel injector adjusts its inlet throttle cross-section via a movable bolt to control hydraulic pressure flow.

Electronic control module monitors exhaust temperatures and flow rates to calculate hydrocarbon combustion efficiency in diesel oxidation catalysts.