Internal Combustion Piston Engines TRIZ Cases

A clutch mechanism dynamically engages a feedpump to circulate working fluid through a waste heat recovery circuit.

Integrating four drive systems on a single bracket resolves the contradiction between high gas compression productivity and device complexity.

Parallel plates create a venturi effect that mixes ambient air with hot exhaust gases, reducing temperatures below conventional limits.

A multi-stage turbocharger system uses a rotary valve to direct exhaust gas flow between high and low pressure turbines.

A diesel exhaust fluid tank venting system channels gas through a dedicated conduit during filling.

An ignition control device monitors air-fuel mixture combustion to stop plug discharge immediately upon detection.

Forced cooling in the spacing between two selective catalytic reduction systems prevents excess ammonia desorption and leakage during high engine loads.

Routes turbine exhaust downstream of a diesel particulate filter to introduce heat for efficient particulate regeneration and prevent backflow.

Metallic support body connects two exhaust gas treatment devices, reducing shear stress and enhancing durability.

Controlled pore dimensions constrain platinum particle movement to suppress sintering and maintain purification performance under high exhaust temperatures.

A single motor drives a multi-passage valve assembly to direct exhaust gas flow through thermoelectric and heat recovery components.

Segmenting radial and axial positioning into separate pins eliminates complex press-fitting constraints during turbocharger assembly.

A controller determines reductant insertion time using a calibration lookup table to deliver precise flow rates.

An additional leakage path redirects back leakage gas flow away from the seal arrangement, reducing corrosive contact and extending seal life in vacuum pumps.

Composite material structure prevents coarse detachments and mass loss in heat exchangers by limiting corrosion spread through a sacrificial protective barrier.

Segmented pressure chambers resolve slow actuation speeds and limited position control in turbocharged two-stroke engines.

Segmented compression modules and magnetic vanes resolve sealing force trade-offs while enabling variable compression ratios.

An integrated non-return diaphragm eliminates complex spring-loaded valves to prevent filter housing drainage while simplifying assembly.

A charge air cooler bypass routes coolant to lower inlet temperature.

A ceramic porous body with controlled skeleton length suppresses pressure loss during fluid flow through dust collecting filters.

Compressed air pressurizes a reductant tank to deliver diesel exhaust fluid, eliminating pump wear and system complexity.

A drawdown compressor assembly draws natural gas from a decommissioned pipe and delivers compressed gas to an active line.

An actuator drives linear bearings to retract the exhaust tip, preventing ground contact during off-road driving.

A compact gas distribution manifold integrates an injection spout directly into the cylinder head housing to mix recirculated exhaust gases.

A hydrogen engine exhaust system uses cooling, separation, and heating units to manage gas temperature.

A ventilator-equipped engine introduces fresh air directly into the cylinder head internal space through a dedicated passage extending across the intake path.

Modulating exhaust air flow during Gasoline Particulate Filter regeneration prevents rapid temperature spikes and excessive nitrogen oxide emissions.

Segmented blocking parts reduce gas deviation from flow channels, resolving poor intercooler heat exchange performance.

A downhole power generation system uses a power conversion circuit to switch between high and low power levels based on load mode.

Aggregates small emission credits from multiple vehicles into larger tradable units, reducing administrative inefficiencies in credit trading.

Two-pole alternators enable single-stage gears for diesel engine energy recovery, reducing gear complexity.

Converter lockup clutch slip state reduces torque reserve requirements and prevents jerking during hybrid drive engine start.

A conical mixer section with circumferential openings generates swirling flow to thoroughly blend exhaust gases and urea solutions.

An optic refraction sensor detects liquid propane fuel state in the line to provide timely low fuel warnings.

Buffer seal protects O-rings from high-temperature exhaust gas, reducing machining complexity while maintaining sealing reliability.

Evaporation chamber vaporizes liquid urea into gaseous ammonia, preventing freezing and deposition risks in low-temperature SCR systems.

Integrating a heat shielding portion into the nozzle drive support ring reduces assembly complexity by eliminating separate plates while blocking heat transfer.

A unified housing merges an exhaust gas heat exchanger and compressor into a single compact component.

Integrated liquid collector with switchable valve adjusts opening frequency based on pressure and temperature to reduce particle emissions.

Placing introduction cells at the outer wall prevents exhaust gas turbulence, minimizing pressure loss increase after particulate accumulation.

A fuel pump coolant cap assembly integrates a flanged bottom surface with a support structure and a cooling ring to form a sealed coolant cavity.

Segmenting the turbocharger bypass mechanism resolves the contradiction between large diversion capacity and precise control resolution.

An external combustion chamber drives a turbine rotor using compressed air pulses, eliminating reciprocating pistons and lubrication constraints.

A bypass valve diverts exhaust gases around the turbine to prevent bearing damage during cold starts.

A heating element uses a peripheral edge with higher relative density to reduce current concentration at structural elbows.

Adjustable exhaust valve positioning method monitors engine-off time and temperature thresholds to enable self-healing capabilities.

Self-tuning procedures adjust diffuser actuator signals to match target engine sounds, eliminating manual calibration complexity.

Asymmetric inlet ducts balance unequal pressure peaks from exhaust manifolds to minimize energy loss and enhance supercharging efficiency.

Curved valve seat and element surfaces maintain passage widths to reduce pressure loss while preventing flow disturbances in low opening regions.