Exhaust Apparatus TRIZ Cases

Relocating the catalyst from the manifold into a dedicated exhaust pipe eliminates complex shape modifications while maintaining sealability.

Compressive fastening seals the inner assembly against the outer housing, maintaining gas tight stability for downstream emission devices.

A projection-like flow guide inside a connection nozzle accelerates coolant movement toward the heat exchanger inlet.

An NH3 sensor detects ammonia in the exhaust line of an internal combustion engine, triggering lean operation to prevent nitrous oxide formation.

Lattice partition walls induce uniform exhaust gas distribution, resolving back pressure trade-offs during catalyst activation.

Segmented lobe surfaces reduce static friction to prevent locking from thermal expansion, protecting manifolds from mechanical damage and leakage.

Rotating the nozzle opening about the lance axis eliminates complex multi-axis robot positioning, reducing cycle times for seam sealing.

A reducing agent tank mounting member with a partition plate and guide members directs spilled fluid away from the battery, preventing contamination.

An intermediate stainless steel member prevents screw loosening in lightweight titanium exhaust pipes by isolating high-temperature stress from the fastener.

Sandwiching nanoscale reinforcements between magnesium plates and hot pressing them prevents aggregation and oxidation while improving strength.

Segmented confluence zone with external shell reduces cylinder head complexity and manufacturing costs.

Ozone injection into exhaust streams enables oxidation of residual pollutants at low temperatures using MnO2 and LNT catalysts.

A multi-muffler sound attenuator assembly directs exhaust flows toward a central location to achieve synergistic noise cancellation.

An integrated tail trim cover merges mounting brackets to eliminate separate parts, reducing assembly complexity while maintaining fastening strength.

Segmented exhaust chamber walls isolate adjacent cylinders in opposed-piston engines to minimize pressure pulse transfer between blowdown events.

An external metal support structure reinforces a plastic fluid housing, resolving strength limitations while maintaining low weight and manufacturing costs.

Adjacent exhaust pipes flexibly couple to prevent gas leakage from vibration, improving sealing reliability without increasing structural complexity.

A condensation line routes exhaust condensate to a pre-volume for evaporation, resolving actuator damage risks from static pressure differences.

Spiral current leads between conductive layers prevent contact resistance drift and maintain AdBlue temperature reliability.

A vehicle protection shield integrates a multilayer thermal patch within a compressed shell housing.

Synchronizing fuel metering with ignition in a burner minimizes hydrocarbon emissions by preventing liquid fuel deposition on spark plugs.

Glass seal between ceramic element and holder prevents exhaust leakage, reducing part count versus talc methods.

Elastic members retain the resin cartridge to absorb manifold deformation, reducing slide resistance and abrasions on the open/close valve.

An adaptive muffler bypass adjusts exhaust flow to balance noise reduction with engine performance.

Segmented baffles and valve-controlled pipes redirect exhaust gas to reduce low-frequency noise in cylinder deactivation mode without adding weight.

A bypass valve adjusts exhaust gas paths to tune sound quality and reduce backpressure in outboard marine engines.

A light metal die-cast support unit connects vehicle exhaust systems using predetermined breaking points that fracture during impact.

A stepped aperture in the exhaust manifold flange secures the inlet tube without direct end-surface welding.

Crankshaft-driven air pump supplies secondary air to a catalyst within the exhaust passage, enabling compact engine housing volume.

A movable shutter system controls airflow to a brake duct inlet and heat exchanger, reducing aerodynamic drag when cooling is unnecessary.

A processing unit adapts modeled reaction kinetics using model-based fill level feedback control to maintain optimal catalytic converter operation.

An energy recovery system expands exhaust gas through a turbine to drive a compressor while transferring residual heat to fuel, reducing preparation energy.

Stabilizing exhaust NOx mass flow across power levels allows predictable ammonia injection, reducing slip during load transitions.

Angled cover openings direct exhaust gases while disrupting water droplet flow paths to protect the sensor element.

Optimized austenitic stainless steel composition lowers thermal expansion and cost, resolving oxidation resistance challenges in turbocharger turbine housings.

Wave-shaped spring elements secure exhaust tailpipes with high pull force while reducing assembly deformation and alignment errors.

Asymmetrical catalytic converter layout in V-type engine exhaust systems creates vertical space for auxiliary components.

Upward exhaust device placement lowers hood profile, resolving visibility obstruction while maintaining engine room space.

Membrane filter purifies ship exhaust scrubber wash water for direct sea discharge or recirculation.

Active temperature control stabilizes the sensor environment, enabling accurate differential pressure detection in low-flow exhaust systems.

A motor vehicle exhaust hook disengages from a silencer sleeve via yielding immobilizing means.

A pulsed spraybar injector uses a master valve and check valves to control fluid flow through multiple orifices.

A semi-flexible elastomeric sealing member encloses the hemmed edge of a vehicle heat shield, preventing hot exhaust gas leakage into sensitive component zones.

Curved secondary pipes wind into the primary exhaust pipe center axis to equalize passage lengths, reducing pressure loss and improving sound quality.

Merging exhaust pipes inside a catalyst pipe positioned next to cylinder banks reduces pressure drop while maintaining engine output.

Horizontal rear suspension placement allows vertical expansion of air cleaner and exhaust chamber capacity without reducing leg room or ground clearance.

Fuel tank shields liquid tank from engine heat, preventing thermal expansion of purification liquid.

Interlocking sizing fingers protect sensor holes during differential diameter shaping, preventing gaps and deformations that compromise weld quality.