Exhaust Apparatus TRIZ Cases

Radio frequency sensor estimates soot load by comparing standard deviation data against thresholds to avoid resonant sinkhole effects.

A heated catalyst device uses asymmetric electrode fusing to interrupt excessive current flow.

Nested catalytic chambers within a single housing member resolve confined engine room constraints while maintaining emission control capabilities.

Glow plugs heat exhaust gases between emission systems to activate auxiliary occupational devices, resolving low-temperature light-off bottlenecks.

A carbon dioxide absorbent filter device uses a porous structure and adjustable bypass to maintain exhaust flow rates.

A bumper cover guides exhaust gas along a streamlined surface to diffuse hydrogen with exterior air.

A traveling duct maintains fluid communication with a locomotive bonnet, capturing exhaust gases while the engine moves past stationary infrastructure.

Side walls guide a dummy exhaust pipe into a bumper recess to eliminate welding costs and prevent detachment from differential expansion.

A fuel blending apparatus adjusts component proportions to meet regulatory volatility standards with or without ethanol.

Exhaust purifier extends toward tunnel portion to position EGR passage connection at lower device section.

A valve link toggle mechanism couples support and valve bodies using distinct link lengths to manage rotational movement.

Mounting the secondary air valve directly to the rotating cylinder head eliminates relative vibration between the valve and engine block.

A piston-based extraction apparatus maintains supercritical pressure for continuous substance processing.

Integral molding of a reservoir magnet prevents diesel mis-filling by engaging a dedicated fill nozzle valve.

A method deposits ceramic particles onto plugged honeycomb structures using a controlled gas current to form uniform trapping layers.

A fuel vaporizer bushing with an undercut head and spring absorbs thermal contraction to prevent screw loosening during maintenance.

Integral depressions with through-bores anchor the container to fuel tank projections, eliminating metal collars that increase costs and leak risks.

Calibrates sensor readings via substoichiometric injection to correct ammonia slip and optimize nitrogen oxide removal.

Increasing individual bend radii expands the cumulative centerline angle, reducing flow constriction and improving engine horsepower.

Segmented water injection and selective catalyst reduction minimize corrosion damage to gas turbine components while meeting strict emission thresholds.

A diagonal rear suspension lowers the seat position on a straddle vehicle, resolving interference between the arm and wheel to maintain riding comfort.

Grounding wire and double-shield cable isolate signal current from leakage and electromagnetic noise, enabling accurate exhaust gas measurement.

A high-stiffness stand supports exhaust gas post-processing devices above the engine in a wheel loader.

Rotating mold halves join thermoplastic shells via injected material to eliminate handling steps and ensure tightness.

Multiple exhaust tubes distribute gas while the diffuser absorbs sound, resolving the trade-off between low noise and high system complexity.

Precipitation hardening via Nb and Ti controls resolves the contradiction between high temperature strength and heat fatigue life in exhaust systems.

A motorcycle exhaust gas sensor attaches obliquely to the pipe between the footrest and brake pedal.

A mounting structure enables manual removal of the cleaning cylinder from an exhaust gas cleaning apparatus using a handle and clamping mechanism.

Periodic thermal energy input prevents crack formation during direct joining of dissimilar metals with different melting properties.

An exhaust water lock baffle redirects gas flow to reduce turbulence and improve efficiency in marine engines.

Single clamp connection for axial insertion of combined catalyst and filter units reduces device complexity while maintaining gas-tightness.

Variable thickness in the coupling element enables controlled uncoupling during impact, preventing the exhaust system from penetrating the vehicle interior.

Branching a connecting line into a common bypass manages exhaust flow and sound transmission while increasing system complexity.

A fluid injector housing features a recessed blow-out volume that receives a secondary seal portion during pressurized air testing.

An intermediary mounting bracket creates thermal barriers that reduce heat transfer and stress on the doser.

Electromagnetic induction heats metal inserts in a catalytic converter substrate to accelerate light-off temperature.

Forming stop elements via U-shaped cuts and bending in the housing eliminates separate assembly steps.

Relocating a marine exhaust flapper upstream to contact an elastomeric coupling device, preventing metal-to-metal noise and wear under high heat.

A composite resonator uses a particle coating on fiber-reinforced polymer to maintain structural integrity at elevated temperatures.

A hollow drum sound generator uses an acoustically coupled radiation panel to modulate sound energy for vehicle interiors.

A two-plate support with a tapered mounting mandrel compensates for manufacturing tolerances and reduces play between the exhaust system and vehicle underbody.

A CeO2-NiO mixed oxide catalyst system decomposes NOx into nitrogen gas without requiring external reductants.

A thermal storage system transfers heat to a catalyst during startup, maintaining optimal temperature thresholds to reduce nitrogen oxide emissions.

Routing exhaust members through the pillar cross-section maintains vehicle width while preserving structural rigidity and shock absorption performance.

A particulate matter sensor uses interdigitated electrodes and protruding flow guides to create multiple soot bridge pathways across the sensing surface.

Counter-flow cooling fluid fills low points first in marine exhaust conduits, eliminating hot spots caused by gravity-driven uneven distribution.

Metallic carrying structure coated with plastic sintered layer prevents metal ion leakage into chemically aggressive operating media.

A Pd-Pr complex and PdO exhaust catalyst maintains high adsorption capacity through chemical bonding.

Diesel oxidation catalyst blends platinum group metals with base metal oxides to reduce precious metal loading while maintaining effective emission treatment.

An electric compressor recirculates air through the exhaust system to preheat the aftertreatment unit, eliminating fuel-based warm-up emissions.