Internal Combustion Piston Engines TRIZ Cases

External auxiliary diesel exhaust fluid tank transfers fluid to the primary generator storage via a controlled pump.

Textile stripping elements absorb abrasion particles from guide channels, preventing friction-induced slipping of exhaust gas aftertreatment elements.

A compressor suction air conduit throttle flap reduces flow cross section to limit charging pressure, minimizing power loss during vehicle idling phases.

A turbine nozzle ring outer rim with a radius ratio of at least 1.05 increases pipe friction to resist exhaust gas leakage.

Dynamic adjustment of an electric exhaust heater lowers back pressure during operation, improving engine power output while maintaining emission control.

A urea water tank integrates a tubular filter with the sensor mounting member to simplify installation and reduce component count.

Absorption spectroscopy and tomography reconstruct ammonia distribution in exhaust systems, resolving variable ammonia to nitrogen oxide ratio issues.

A free radical injection system uses a pre-combustion chamber to generate reactive species driven by shockwaves into the main combustion zone.

A three-state compressor recirculation valve maintains a semi-open position during steady operation to reduce energy consumption.

A screen throttles coolant flow through a duct opening, redirecting fluid into dead zones to prevent boiling and improve cooling capacity.

Austenitic stainless steel with controlled silicon and manganese forms a concentrated oxide film to enhance braze spreading coefficients.

Controller adjusts reductant injection commands based on catalyst deterioration factors to maintain exhaust treatment system performance.

Constructing target negative samples constrains the voice decoding path, suppressing unexpected outputs and improving recognition accuracy.

A selective catalytic reduction system uses accumulator pressure to purge air from the reductant pipeline.

An arc-shaped second valve body closes a communication port near the shaft, eliminating guide portions to reduce noise and size.

An asymmetric piston protrusion with distinct intake and exhaust side angles shapes the combustion chamber geometry to guide gas flow.

A modular reductant metering system integrates dosing and compressed air units to optimize vehicle installation space.

Segmenting compression and cooling stages with a heat exchanger reduces air temperature, allowing denser intake without increasing system complexity.

A diagnostic system monitors NOx conversion efficiency to detect non-urea reductant faults in SCR aftertreatment devices.

An external cooling passage lowers combustion chamber gas temperature, increasing air entrainment in the injected fuel spray and reducing soot production.

Asymmetric nozzle vanes utilize thermal deformation to reduce clearances, preventing leakage flow while avoiding sticking risks.

A dual-fuel injector merges multiple nozzle needle receptacles into a single mixed leakage collection channel for unified fluid management.

A multi-stage flow regulator valve adjusts propane injection volume based on engine operating conditions.

A Rankine cycle system recycles exhaust heat via an EGR side heat exchanging unit to drive a turbine for torque generation.

Integrating circumferential centering contours on exhaust shell sections ensures concentric alignment before welding.

Master-slave valve configuration manages secondary-air flow to reduce component count and improve fault localization precision.

Embedded electrical heating elements in a multi-layered plastic container prevent freezing of the liquid reducing agent.

Segmented upstream and relay pipes reduce exhaust pressure loss by eliminating lateral bends in the outboard motor.

Segmented rotor housing uses a corrugated closeout to form axial coolant passages, resolving casting complexity while reducing weight.

Segmented electrodes and peripheral covers protect terminals while reducing projection from the exhaust system for better space efficiency.

A thermal method estimates ammonia storage saturation by measuring the time required for unit pressure to drop between two thresholds.

A wear coating on a piston skirt shears during insertion to establish precise cylinder clearance, eliminating the need for multiple piston inventory grades.

Recirculating vaporized fuel through a trim heater line increases internal tank pressure, preventing flow starvation during high-rate engine operation.

A spatio-temporal Hawkes process model captures event correlations using historical data.

A gas-sensor control device detects sweep circuit off-failures using a single voltage measurement during neutralization current flow.

Controller adjusts reductant dosing targets during exhaust flow changes to maintain SCR catalyst operation.

Modulate air mass flow to remove deposits from aftertreatment systems, restoring catalyst contact area and reducing back pressure.

Dynamic reductant injection control manages multiple injectors to reduce emissions while minimizing system scale and cost.

Segmented silencer cover design minimizes high-temperature air intake to lower suction temperatures and reduce compressor work power.

A seawater circulation system recycles cooling water to scrubbers, reducing ship space requirements.

A cross-sensitive NOx sensor measures combined ammonia and nitrogen oxide concentrations downstream of selective catalytic reduction elements.

Elliptical gearwheels drive coaxial rotors with interlocking wings to resolve sealing issues and inefficient surface ratios in rotary displacement machines.

Flow divider walls in a decomposition mitigation assembly guide exhaust gas circulation around the injector, preventing DEF deposit formation on inner surfaces.

Linear selector switch mechanically interlocks fuel valves to prevent simultaneous activation and eliminate hazardous fuel mixing risks.

Constant current drives a zero-balanced transducer to correct small pressure drops and supply line expansion without bleeding air.

Upward protruding parts on a surge tank bottom wall separate blowby gas exhaust from water drain paths, preventing water from reaching the throttle valve.

Segmented plug-in plate mounts electric heater and electrical components to prevent freezing while simplifying maintenance access.

An alpha-alumina coating prevents oxidation and creep in nickel-based superalloy turbine wheels operating above 1020°C.

A dosing control system adjusts reductant injection based on upstream and downstream NOx sensor signals.

Moveable ring adjusts intake channel area to regulate expansion ratio, resolving low-speed boost and high-speed choking issues.