Internal Combustion Piston Engines TRIZ Cases

See how a layered PTC heating block in the fresh air supply controls injection temperature whil

See how a trailer-mounted heater uses engine coolant, intercooler, exhaust heat, and fluid shea

See how a Peltier-effect thermal management unit dynamically heats or cools intake air to maint

See how a flexible resistive heating element integrated into urea tank base plates adapts to co

See how a piston pump integrates heating and cooling elements to enable precise fluid dosing wi

See how a thermoelectric device uses a sloped heating unit and elevated outlet to discharge con

See how a pump-driven accumulator stores and releases pressurized fluid to adjust capacity inst

See how a two-stage absorption chiller condenses water vapor and reduces exhaust gas volume bef

See how a modular rib-plate heating element uses series or parallel electrical connection to ra

See how a movable turbulator doubles as a collector electrode to expand separation surface area

See how a monolithic U-shaped holder with partitions maintains independent compression of serpe

See how a dual-channel valve body with cartridge docking and switchover simplifies descaling, m

See how an onboard pressure steamer uses engine exhaust heat to generate steam for cooking, wit

See how enlarged volume sections between holding bodies improve fluid flowability and heat diss

See how a serpentine current-carrying path in a resistive heater body reduces catalyst light-of

See how segmented heating elements with insulating spacers prevent short circuits while maintai

See how immersing a thermal engine and alternator in fluid recovers waste heat, reduces noise t

See how tunable quarter-wave and Helmholtz resonators reduce HVAC fan noise by 5-20 dB using de

See how a liquid-tight housing encloses the heating element to protect it from ice pressure and

See how series-connected condensers enable low-pressure condensation in exhaust waste heat reco

See how a return flow channel upstream of the high-pressure pump controls LNG temperature and f

See how a turbo-expander, absorption chiller, and CO₂ capture system reduce exhaust volume and

See how integrating an open-cycle absorption chiller with turbo-expander and turbo-compressor r

Directly exposed airfoil-shaped resistive elements heat diesel exhaust while limiting back pressure, complexity, and cost.

See how a turbo-machine compresses exhaust gas to accelerate SCR warm-up and reduce fuel consum

Alternating two heat exchangers lets one dry gas while the other is defrosted with warm fluid, preventing ice buildup and downtime.

Alternating two heat exchangers lets one dry gas while the other defrosts, preventing ice buildup without interrupting dehumidification.

See how a ceramic honeycomb structure with integrated thermoelectric modules recovers exhaust h

See how a concave vacuum seal secures cleaning tools to DOC ends without clamps, containing soo

See how a chemical exothermic reaction system rapidly heats honeycomb DPF structures to improve

See how a split cycle engine uses liquid-phase coolant and a regenerator to achieve quasi-isoth

Targeted heat conduction and insulation keep a PTC tank heater from shutting off at low fill levels while maintaining uniform reducing-agent heating.

See how horizontal transfer tubes enable ultra-low NOx emissions by connecting heat exchanger t

See how integrated pot-wall electrical contacts and segmented main-auxiliary heaters reduce sea

Detecting refrigerant in condenser cooling water enables faster leak response than liquid-volume monitoring, helping prevent loss and corrosion.

See how parallel lamellae rows with resistive heating enable rapid exhaust gas heating after co

See how disposable containers and dosing systems enable sterile, on-demand preparation of lab m

A controlled LNG return path keeps fuel supercooled before the high-pressure pump, preventing boil-off gas from disrupting supply.

See how a deep-drawn housing with integrated fluid channels and an external-access chamber enab

See how a DC-powered in-line chiller cools fuel between tank and engine, replacing ice-based sy

See how integrated pot-wall contacts and segmented heating zones eliminate elastomer seals and

See how a bypass mixer and expansion tank enable indoor heat recovery from outdoor heat pumps w

See how electrical pumps force fluid circulation in thermoelectric cooling systems to improve h

See how thermo-acoustic devices convert exhaust heat into acoustic waves that drive cooling sys

See how flexible film heating elements with resistive tracks adapt to tank geometry and prevent

See how a sorption subsystem uses waste heat to subcool refrigerant, eliminating suction-liquid

Using different polymer sections in one heated fluid line improves freeze resistance, temperature durability, and assembly around connectors.

Real-time refrigerant filling control keeps a waste heat recovery turbine near optimum output across changing vehicle load conditions.

Flexible thin-film resistive heaters fit tank walls, connections, and base plates to thaw urea uniformly and avoid ice blockage.

A heat supply member bridges the engine-cover air gap so a thermoelectric element can harvest waste heat without losing noise insulation.

Angled inlet bell and outlet nozzle geometry fits marine turbochargers into tight machinery space while preserving exhaust flow and NOx efficiency.

Steam-heated glycol warms LNG for engine use, while pressure sensing and venting handle heat exchanger leaks to keep fuel supply stable.

Flexible textile heating sections thaw SCR tank liquid uniformly while preserving tank volume, fluid flow, and corrosion resistance.

A flexible polymer-coated heating cord thaws SCR tank fluid efficiently while resisting corrosion, overheating, and difficult installation.

Configured rotor and housing passages replace sticking check valves, directing flow reliably from low- to high-pressure regions.

A one-piece intake air heater uses a flange, serpentine element, and wave springs to simplify retrofit and withstand repeated impact loading.

Expansion volumes and a transition chamber damp burner noise in a coil-wrapped water heater while preserving effective heat transfer.

A branched deaeration line and liquid-tight pressure-compensating element keep an SCR tank vented, drain condensate, and block water during fording.

An elastic plug sealing stopper replaces potting to seal heating kettle cover feedthroughs without damaging lines or complicating assembly.

A separate spring system and internal guides let PTC heater parts slide into the casing, easing assembly while keeping diesel heating uniform.

An inner heated container thaws reducing agent first, then feeds the outer tank to maintain SCR dosing below -11°C.

A reservoir trap on the charge air cooler outlet stores condensate and returns it with airflow to prevent misfires without boost loss.

A circulating pump recirculates fuel through the heat exchanger to balance ΔT and flow rate, improving heat transfer and reducing exchanger size.

An IH coil heats the engine fluid pipe directly to cut thermal conduction loss, lower power use, and stabilize heating under vibration.

Conductive woven heating with series crimped conductors keeps automotive urea liquid in cold conditions without redesigning the hose.

A lateral-bore ground electrode enables precise spark gap setting in prechamber plugs, supporting lower-cost mass production for mobile engines.

Dynamic power conversion heats exhaust fluid during cold starts and off-nominal conditions to protect aftertreatment components and cut power burden.

A rope-suspended, vacuum-insulated methane tank cuts heat ingress and pressure build-up while enabling low-pressure storage and longer hold times.

Periodic rotating cleaning keeps turbocharger filter permeability stable by removing dust in operation and expelling collected particles.

An MEA converter uses the oxygen difference between exhaust gas and air to cut toxic emissions while generating electricity from waste heat.

Hydraulic energy recovery lets one chamber deliver pressurized gas while the other refills, cutting parasitic losses in high-pressure supply.

Dynamic VSL control uses CAV-based moving bottlenecks and reinforcement learning to reflect real-time traffic and driver variability.

An integrated power switch and resettable throttle knob replaces fatigue-prone mechanical gears for more stable, intelligent excavator speed control.

Human driving data, scenario screening, and black-box tuning improve autonomous driving decisions while preserving interpretable rule logic.

Segmented lane-aware display maps preceding vehicles by relative position to reduce overlap, improve visibility, and keep real-time rendering efficient.

By cropping parking-space sidelines and separating real obstacles, this case expands usable space and improves automatic parking path success.

A staggered thermoelectric module layout and narrowing exhaust pipe raise downstream gas velocity to recover more power from cooling exhaust.

A detachable body cover and accessible central filter cut replacement fatigue while supporting flexible exhaust purifier installation.

A triangular front compartment beam redirects small offset crash loads to limit passenger compartment intrusion without major weight increase.

A vertical BLDC motor with an integrated worm and symmetrical gear train cuts assembly space, backlash, and vibration while enabling precise swivel control.

Historical motion patterns are turned into cut-in or yield probabilities, helping autonomous vehicles react earlier and avoid intersection collisions.

Historical motion patterns are used to predict whether an obstacle will preempt or yield at an intersection, enabling earlier driving decisions.

A single-stage top-view learning approach uses center and inner-corner probability maps to detect multiple parking space types faster and more accurately.

A compact auxiliary tank with an internal gear pump and coarse filter prevents air intake at low fuel levels and simplifies heavy-vehicle fuel supply.

Closed-loop motion prediction with graph neural networks and feedback improves intelligent vehicle decision control when open-loop guidance fails.

Multiple vehicle functions share signals at different frequencies; this case selects the highest-rate signals to cut data volume and bandwidth use.

A generative world model fuses multi-camera data and domain adaptation to move autonomous driving from simulation to real roads.

A below-turbocharger exhaust pipe and parallel ATD layout absorb thermal expansion while keeping the engine package compact.

Segmented force transmission redirects 25% overlap crash loads into side and upper members to cut cab intrusion and improve frontal crash performance.

Slip ratio intervals and precomputed friction estimates help vehicles adapt to ice, snow, and changing roads without noisy real-time instability.

A flat self-contained EV platform packs motors, suspension, and batteries below the body to cut redesign work and free passenger space.

An upstream electrically heated cold light-off catalyst speeds pollutant conversion at engine startup before the main catalyst reaches temperature.

Dual exhaust temperature sensors and ECU feedback maintain SCR heater output despite aging, supporting emissions compliance with lower fuel penalty.

A pressing block and nested lifting rod let trunk mat stops reposition easily while reinforcing the support rod for stable luggage restraint.

A DC bus and DC-DC converter coordinate battery and ultracapacitor outputs to separate wheel sets, cutting weight and control complexity.

A temperature-sensing valve circuit lets the controller stop overheating before oil leakage or shock absorber damage disrupts suspension control.

A mixer at the exhaust connection pipe improves urea evaporation in a compact SCR-DPF layout, reducing engine protrusion and mountability issues.

A vacuum pump and charging line pre-create intake depression to cut turbo lag during sudden acceleration without added compressor energy.

By narrowing radar view when a platoon vehicle is likely to exit, this case avoids unnecessary braking, fuel loss, and brake wear.

Brake hold release is varied by engine speed at restart to reduce kicked feeling while preserving quick vehicle launch.

A mirror chamfer and refraction structure shields film gaps to create richer automobile sign plate color effects without LED power use.

A covered, nonlinear PCB fuse path creates a cavity that extinguishes arcs and contains plasma to prevent further circuit board damage.

A shaft-driven fan circulates air between the rotor and stator to remove heat, prevent overheating, and extend boost phases.

Context-aware ESS logic prevents unnecessary engine restart when shifting from drive to park while still warning the driver the engine is keyed-on.

A stepped connecting pin replaces the wear-prone retaining ring, keeping spring-biased link portions secured while reducing friction loss.

A stepped shaft and spaced position regulator control the mounting plate gap without high-precision machining, cutting valve manufacturing cost.

Standardized jigs, bushings, and dowels stabilize locomotive bedplate drilling, improving alignment while reducing welding and custom fabrication.

A pivotable fin controls the volute connecting opening to cut actuation energy, reduce wear, and protect turbocharger and catalyst performance.

Lower shaft rigidity between turbine and compressor bearings shifts the vibration node to suppress critical-speed rotor resonance.

An annular wiper seal cleans DEF port fittings during connection, creating a secure residue-free seal for reliable SCR fluid transfer.

Laser welding fusion-bonds copper valve seat inserts to aluminum cylinder heads, eliminating gaps, thermal distortion, and cladding defects.

A one-way valve refills reserve HP cylinders from replacement primary cylinders, preventing hidden backup depletion and sustaining LP gas delivery.

Compressor speed is estimated from temperature difference and mass flow, cutting sensor hardware while improving altitude accuracy.

A polygonal retaining ring enables push-to-connect turbocharger linkage assembly while eliminating play, clip cracking, and extra wave springs.

Sacrificial tabs let a fuel injector pre-chamber join by friction or resistance welding, cutting third-material weld cost and complexity.

Pressure-triggered heat release inside a pressurizing chamber keeps working fluid warmer, cuts heat loss, and improves hydraulic actuation efficiency.

A differential transmission decouples piston engine and compressor speeds to cut fuel use and NOx in a hybrid turbomachine.

A switchable valve links or isolates turbocharger floods to preserve low-speed torque while limiting exhaust pressure buildup at high engine speeds.

Different materials are matched to hot and cooler heat-exchanger sections to balance temperature resistance, corrosion resistance, and heat transfer.

Separating ash buildup from particulate loading enables more accurate exhaust filter cleaning alerts and helps avoid pressure loss and engine damage.

Uses downstream oxygen sensor data from segmented diagnosis periods to detect catalyst deterioration despite disturbed fuel reversal cycles.

Dual actuators and a separated coupling member keep the valve needle at full lift, stabilizing gaseous fuel pressure and delivery.

An electric field inside the pre-chamber boosts lean cold-start ignition without auxiliary fueling, improving combustion and emissions.

A second injector aimed into the intake port enables dual-fuel retrofit with fewer hardware changes while reducing fuel buildup and emissions.

Movable cam noses let each pump cylinder run independently, cutting backup pump needs while reducing inertia, backflow, cavitation, and overheating.

Inverse SCR modeling sets brick-level NH3 targets from NOx, temperature, and flow to sustain conversion and limit ammonia slip.

By integrating the EGR passage into the cylinder head cover, this case reduces cylinder head length and improves coolant outlet layout freedom.

Pre- and post-regeneration differential pressure change helps detect PM filter regeneration faults despite filter aging and tolerance variation.

A heated recirculation loop with a compressor warms the exhaust aftertreatment device faster, cutting cold-start emissions and heater energy use.