Internal Combustion Piston Engines TRIZ Cases

Regional vehicle data feeds a systemic utility model that guides routing to balance travel time, risk, and network-wide efficiency.

Closed-loop optimization aligns behavior decisions and motion planning with teaching trajectories to improve autonomous vehicle travel safety.

Electronic shutoff valve control with pressure sensing stabilizes natural gas flow, simplifies tank isolation, and improves refuse vehicle safety.

By raising the work platform, this truck layout fits a larger reducing agent tank above the frame without reducing fuel tank space or range.

A flat self-contained EV platform places propulsion, storage, and suspension below the wheels to minimize body interconnections and expand body design options.

A mixer at the exhaust connection pipe inlet improves urea evaporation and mixing, cutting pipe length and injector protrusion.

Spin-on dielectric sealing fills and caps gate-to-contact air gaps, avoiding ALD/CVD seams while lowering capacitance and preserving planar dimensions.

A covered non-linear PCB fuse contains plasma and vents gases through a cavity opening, interrupting faults without uncontrolled arcing.

A decoupled linear-nonlinear vehicle model improves forward collision risk assessment while keeping shared control intervention fast.

Auxiliary control fluid circulates across a hydrogen tank array to maintain discharge pressure, reduce re-pressurization energy, and sustain engine fuel supply.

A plug-in coupling combines fluid and electrical interfaces with a line divider to cut assembly effort and save space in multi-line heated fluid systems.

Dual cooling circuits and frame-mounted heat exchangers cool charged intake air and the engine to stabilize utility vehicle powertrain output.

A plasma-to-electric converter and electrochemical cell architecture improve energy capture from water-based fuels while producing electrical and thermal power.

A bubble isolation shield and air-hole baffle keep the test liquid still and clean, improving urea concentration measurement reliability.

Dual closed-loop optimization aligns behavior decisions and motion planning with teaching sequences to improve autonomous vehicle travel safety.

Vectorized vehicle and road features replace limited CNN receptive fields to improve multimodal trajectory prediction for autonomous driving.

During coasting, actual speed loss updates rolling and air resistance estimates, improving cruise control accuracy and fuel economy.

A spin-on dielectric seals gate-to-contact air gaps with a planar surface, avoiding ALD/CVD seams while keeping spacer dimensions uniform.

A unified profile housing lets rearview mirrors be cut to length, avoiding CNC machining and new moulds while keeping assembly secure.

Class-specific position, velocity, acceleration, and class graphs improve trajectory prediction in mixed pedestrian, bicycle, and vehicle traffic.

A curved gas guide boosts heat transfer to paired thermoelectric modules while shielding them from direct hot-gas exposure for better waste heat recovery.

Dual check valves and separate inlet and outlet holes keep SCR urea tank pressure balanced when the vent membrane is blocked or blown out.

Voltage-threshold eCAT control stabilizes onboard power during PWM heating, reducing battery aging and starter-generator power imbalance.

A flat self-contained EV platform packs propulsion, suspension, and energy storage within the chassis to free vehicle body design and simplify assembly.

Captured CNG from vehicle defueling is stored, reheated, and redirected for refueling instead of being vented, cutting fuel waste and cost.

Solenoid coil voltage feedback detects parking brake faults in working machinery, helping prevent undetected hydraulic failures and unsafe parking.

Activated carbon filtration, pollutant sensing, and thermoelectric heat recovery cut exhaust emissions while turning waste heat into electric power.

A combined four-cycle and two-cycle stroke sequence cuts pumping loss through valve timing and staged ignition, raising output and thermal efficiency.

Predictive tire lateral force estimation lets differential braking compensate steering motor torque before hand-moment spikes reach the driver.

A shared intake housing routes filtered air to the engine and CVT, blocking dust and water while fitting tight off-road vehicle packaging.

Using repeated low-speed sections from a vehicle speed sensor, this case suppresses stop-start in inevitable low-speed travel without extra sensors.

Electrode-ignited water-based fuel generates plasma that is converted directly to electrical and thermal power with lower energy loss.

A shielding sleeve encloses the heater-to-line joint to block corrosion, shorts, vibration, and thermal damage in exhaust gas heaters.

A switched exhaust heater uses temporary voltage switchover to limit peaks, simplify control, and reach emission-ready temperature.

A variable-speed carrier in an epicyclic gear train stabilizes engine output from fluctuating turbocharger turbine speeds.

Shielding the downstream EGR passage behind the intake passage limits traveling-air cooling, reducing condensation and stabilizing combustion.

Multiple load paths through an energy-absorbing box, upper side beam, and longitudinal beam improve small-offset crash resistance.

After a driver changes the target speed, cruise control suppresses coasting for a set time so the vehicle reaches and holds the desired velocity.

Multi-sensor prediction of occupant position and injury risk enables earlier pre-collision warnings, restraint activation, and airbag control.

Multiple load paths through bumper beams, side beams, damper towers, and triangular bracing cut cabin intrusion without adding weight.

A buffer volume and separating device slow vent flow and keep nozzle flow laminar, preventing premature shut-off during SCR tank refilling.

A curved pipe routed below the turbocharger lengthens the exhaust path to absorb thermal expansion without sacrificing engine compactness.

Two side-by-side turbines drive one generator to recover more exhaust energy while easing engine-compartment installation constraints.

A pressure store buffers boil-off gas from a cryogenic fuel tank and feeds the rail, cutting losses while maintaining usable pressure.

A single-capacitor control circuit combines over-energization cutoff and gradual turn-off to shrink ignition power semiconductor designs.

A conical ceramic-insulated feedthrough limits thermal load, resists water wetting, and prevents flashover in heated catalytic converters.

Fluid communication between engine and thermic gas circuits equalizes pressure, keeps tank levels aligned, and extends vehicle autonomy.

Helical seals on trochoidal rotor-stator surfaces cut fluid leakage while accommodating wear and thermal expansion in rotary machines.

Permanent magnet and electromagnet coupling boosts armature pickup speed while buffer springs suppress rebound and eddy-current losses.

A tapering fluid channel section accelerates flow toward a mass flow sensor to stabilize the fluid stream.

Inducing a rich event to calculate an exotherm index, distinguishing functional from degraded diesel oxidation catalysts.

Porous partition walls balance purification efficiency and pressure loss by allowing exhaust gas permeation through specific pore structures.

A flow modifier diverter accelerates exhaust gas velocity to improve reagent mixing within the exhaust conduit.

A catalyst deterioration detection system estimates gas storage levels by comparing pre- and post-catalytic converter sensor readings.

Spray heads apply cleaning liquid to the inner surface of marine exhaust gas channels between scrubber units and the environment.

Composite mixed oxide resists sintering at 1100°C, preserving small pores for catalytic activity.

A thermosyphon transfers exhaust waste heat to a urea storage tank, maintaining solution temperature without external power.

Dynamic reductant metering based on component temperatures optimizes ammonia distribution to resolve limited coating constraints and boost NOx conversion rates.

A branched exhaust stream uses nitrogen dioxide from an oxidation converter to convert carbon particles, avoiding filter clogging.

A gasoline particulate filter uses synthetic ash on the inlet side to mimic soot cake formation for high fresh filtration efficiency.

Merging pump and nozzle eliminates throttling losses while maintaining precise dosing.

Radial protrusions in the piston bowl direct fuel spray to create swirl motion, reducing particulate matter emissions and specific fuel consumption.

A switchable exhaust gas flow system directs emissions through inner or outer catalytic converter regions to optimize nitrogen oxide reduction efficiency.

Optimized partition wall porosity and pore geometry enable high catalyst loading while preventing pressure loss increase.

A spark-ignition two-valve engine uses a single center tumble port and offset ignition plug to generate controlled gas flow within the combustion chamber.

Selective axle disconnect isolates redundant driveline components, eliminating parasitic losses and reducing NVH while maintaining low-range torque capability.

A fluid activating apparatus uses a magnetic force generating unit to alter the molecular structure of liquid fuel.

Controller automates engine-generator operation via load sensors to reduce fuel waste during intermittent auxiliary power demands.

Segmented washcoat zones lower platinum loading in inlet regions to reduce contaminant poisoning while maintaining catalytic activity downstream.

Vents turbocharger actuator shaft openings to the engine crankcase, diverting exhaust leaks away from ambient areas using negative pressure.

A correlation coefficient method separates urea deposits from soot accumulation in particulate filters to isolate accurate mass estimates.

A common evaporator absorbs thermal energy from exhaust gases and recirculating exhaust streams.

A vehicle exhaust partition member divides flow channels to guide gas into a lower path with increased velocity.

A vehicle gas tank safety device uses a burner to combust excess pressure relief gas.

A ducted fuel injection system directs a high-velocity fuel jet through a bore to draw in charge-gas and create turbulence.

A driving intention prediction system activates vehicle features based on detected driver behavior sequences.

Mixed surface roughness on cylinder walls manages convective heat transfer, reducing intake air temperature and preventing engine knocking.

Relocating the spark plug to the rotor body eliminates stationary housing openings that cause gas leakage between working chambers.

Segmented deflector surfaces direct exhaust flow to atomize injected urea, resolving the trade-off between mixing uniformity and system complexity.

A nested pipe extends radially within a large chamber volume, resolving space constraints between carburetor and air cleaner.

Integrating a flexible edge protectant into the mounting mat prevents hot gas erosion without adding complex installation steps or rigidizing agents.

Draining DEF via a controlled valve reduces thaw time and prevents expansion damage while maintaining operational readiness.

A blunt body creates suction pressure to reduce exhaust gas leakage and particulate deposition within the turbocharger control shaft bore.

Segmented ammonia injection and downstream measurement verify selective catalytic reduction module integrity, eliminating complex temperature calibration.

A compact charge-air cooler integrates multiple cooling cores within a shared housing structure for efficient thermal management.

A control system adjusts SCR reductant dosing based on detected fluid state to maintain injection stability.

Exhaust gas heat exchanger coated with hydrocarbon adsorbing material captures pollutants during engine operation.

A catalytic converter system reduces rhodium loading by employing multiple fuel injections to pre-heat the exhaust gas and accelerate catalyst light-off.

A polarizing mesh arrangement charges atmospheric air and exhaust gas to enhance combustion efficiency.

Integrating the exhaust manifold and riser into a single cast aluminum component eliminates flange connections, reducing leak risks from thermal expansion.

Electronic control unit calculates anticipated phase deviation to adjust oil pump discharge before variable valve timing operation begins.

A catalytic converter system manages oxygen storage capacity reactivation through precise lambda setpoints and temperature monitoring.

Merging PNA and SCR substrates into one cross-flow unit accelerates catalyst warm-up, reducing thermal lag during cold starts.

A controller adjusts a variable tailpipe valve position based on exhaust backpressure measurements.

A segmented air induction device separates airflow into distinct segments to improve laminarity and engine efficiency.

Counter-rotating impellers allow symmetrical turbocharger installation, equalizing exhaust and intake piping lengths to optimize engine performance.

Secondary air injection between front-mounted catalysts accelerates activation while preventing overheating and maintaining aerodynamic design.