Internal Combustion Piston Engines TRIZ Cases

Hydraulic coupling between the pump piston and balancing mass compensates oscillating inertial forces without rotating components.

A vehicle intake air control apparatus uses a port plate and valve flap to manage airflow cross-sections.

A charge air cooler system adjusts airflow velocity through a flow adjustment mechanism to manage internal moisture levels.

A dynamic exhaust valve routes gas through segmented passages to bypass or treat emissions, reducing converter size while managing back pressure.

Microwave hydrothermal synthesis creates sodium iron oxide catalysts that store nitrogen oxides during cold starts, eliminating extended warm-up delays.

A thermal regenerator burner heats exhaust aftertreatment components to activate selective catalytic reduction catalysts.

A liquefied natural gas fuel tank uses controlled spray injection during bunkering to establish operational pressure without external heating.

Dividing exhaust gas into parallel streams enables targeted NO oxidation and selective catalytic reduction within a single aftertreatment system.

A secondary air compressor activates to generate surging conditions while a control unit analyzes sensor signals for leak identification.

A primary coil energization control system adjusts discharge timing to maintain spark plug integrity during engine operation.

Repositioning side intake ducts reduces vertical height while preserving airflow via inverted flow paths.

A one-piece valve guide integrates air supply channels to enhance engine responsiveness.

Stationary baffles redirect reverse liquid flow to collide streams, preventing water ingress that causes engine stalling.

An asymmetric pre-chamber spark plug creates a tumble-shaped flow that reduces wall heat losses and improves ignition stability.

Segmented turbo-superchargers reduce parasitic losses at low loads while maintaining adequate air flow for exhaust aftertreatment.

A spring-biased center exhaust valve and control pulleys manage overlapping movements in a two-stroke motorcycle engine to eliminate power surges.

Matching carrier layer expansion coefficients reduces thermal stress, ensuring structural integrity across wide temperature ranges.

An integrated fuel management module combines filtration, pressure regulation, and thermal homogenization within a single manifold block.

Transition metal doped alumina boosts oxygen storage capacity, enabling effective pollutant conversion at low washcoat loadings.

High-velocity air stream atomizes diesel exhaust fluid in a cylindrical blend chamber to prevent crystallization during cold starts.

Circumferential wedge gaskets increase frictional resistance to arrest longitudinal sliding and rotation of fuel tanks under vibration.

A turbocharger lubricating oil pressure regulator valve opens a bypass port to sump when inlet pressure exceeds a set threshold.

Direct ammonia gas injection eliminates solid urea deposits and enables higher temperature operation in diesel exhaust systems.

An integrated exhaust pulse converter merges with the turbine housing to accelerate and decelerate gas streams.

A perforated heating grid uses zigzag elements to deliver rapid thermal energy across elliptical exhaust conduits.

Actuating multiple exhaust valves per cylinder with a phase offset minimizes crosstalk between combustion chambers and reduces exhaust backpressure.

Pointed metal wires insert into honeycomb ceramic cells to enable rapid induction heating of the substrate body.

Pressurized fluid jets drive a dedicated turbine wheel on the turbocharger shaft, eliminating exhaust gas dependency and reducing turbo lag.

Arranging the transfer pipe perpendicular to the exhaust flow creates a vortex that accelerates reducing agent vaporization while minimizing pressure loss.

A fuel injector replaces the spring return element with a permanent magnet to actuate the check valve.

Labyrinth insulation reduces heat loss from the combustion chamber while preheating intake air for efficient catalyst heating.

A silver alumina catalyst produces partially oxidized fuel to support selective catalytic reduction processes.

A control system detects SCR catalyst breakthrough via downstream nitrogen oxide concentration to adjust reducing agent dosage.

Integrated seal members prevent exhaust gas leakage, resolving the trade-off between supercharging efficiency and device complexity.

Extraction of the turbine from hot exhaust gases allows lightweight material construction, reducing rotating assembly weight and eliminating turbo lag.

A vehicle controller anticipates intersection stops to disable power steering before engine shutdown.

A charge air cooler control unit detects grille shutter degradation using temperature differences across the heat exchanger.

Offset opening timings for diagonal scavenging port sets prevent central collisions of air-fuel mixtures, reducing blow-by emissions by up to 5.9%.

Integrating reset pistons within rocker arms eliminates external control components, reducing device complexity while maintaining adaptability.

Adjusts minimum battery state of charge threshold based on temperature to prevent deep discharging, extending cycle life.

Segmented delivery line channels offset pressure pulses from pulsating pumps, reducing feed noise and consumption while maintaining dosing accuracy.

Flush metering device alignment prevents deposit formation on inner walls by eliminating dead volumes and ensuring homogeneous reagent distribution.

Offset cam design improves torque production while reducing energy consumption.

Pneumatic coupling synchronizes crankcase pressures to neutralize piston differentials, reducing part-load pumping losses in throttled Otto engines.

A partition wall member extends from an intake port to an intake passage, fixed to both inner walls to define the positional relationship between the two flow channels.

A urea water consumption diagnostic device compares cumulative instructed spray volumes against actual sensor readings to identify dosing valve anomalies.

Asymmetric bowl geometry and skewed squish zones create distinct tumble and swirl flows to reduce cylinder wall heat loss in opposed piston engines.

An electrohydraulic device varies valve phase and lift using axial camshaft movement.

Welded insert absorbs axial forces from freezing diesel exhaust fluid to maintain calibration sleeve position against volume expansion.

A cyclone system with electrostatic recirculation concentrates fine particles using an ionizing field.