Exhaust Apparatus TRIZ Cases

A nitrogen oxide concentration sensor measures exhaust emissions to determine catalyst priming temperature.

Segmented half-shells reduce manufacturing cost while maintaining gas uniformization in a compact exhaust purification system.

An automated chamber activates UV-C light upon closure to eliminate pathogen transmission risks without manual cleaning.

Inclined web and edge geometry reduces internal friction during axial movement, resolving unhooking risks when cutting or expanding wound hoses.

Pre-positioned abutment shoulders on the cylinder head physically stop exhaust manifold contraction, preventing plastic deformation and stress-induced breakage.

A porous noise attenuating member wraps around a core with radial openings to disrupt turbulent eddies in engine fluid paths.

Adjustable cover portion varies inlet area to attenuate specific sound frequencies, eliminating seal wear and reducing motor load.

Bonded plate materials create non-circular exhaust pipes that maintain strength while increasing back pressure for low-revolution torque.

An NH3 sensor detects evaporator leaks by measuring cross-sensitive ammonia concentrations, enabling real-time identification without vehicle deactivation.

Shearable connecting bridges detach under impact, allowing the noise-optimized shield to slide onto the tailpipe and prevent costly damage.

A variable speed air pump paired with a multi-position gated check valve directs airflow to specific engine banks.

A one-piece acoustic resonator housing eliminates welding seams to increase mechanical strength and simplify manufacturing.

Mechanical deformation joins muffler tubes to inserts, reducing corrosion susceptibility and distortion while allowing thermal expansion.

Dual-layer catalyst structure with zirconia and ceria-zirconia composite oxides reduces noble metal usage while maintaining NOx purification efficiency.

Segmented pump electrodes apply localized voltages to remove oxygen while preventing NOx resolution at the measurement electrode.

A vehicle exhaust muffler uses a peripheral flange to hold an inner sleeve that slides within the outer sleeve.

Integrating fuel and diesel exhaust fluid fillers within a vehicle counterweight prevents corrosive spills and freezing damage.

A marine propulsion exhaust stopper secures the porous catalyst carrier within the flow passage.

A non-woven mat with a polymeric layer securely mounts pollution control elements while maintaining flexibility.

Detecting cavity volume changes allows the system to modulate heat output, preventing air pockets from insulating frozen fluid during thawing.

A urea tank conditioning device uses a Peltier cell to maintain solution temperature, preventing freezing and chemical degradation.

Heating element on mat member surfaces emits heat through exothermic chemical reactions to form a molten-solidified bonding layer.

A mixing baffle segments exhaust gas into combustion and bypass flows to create homogeneous temperature distribution across a particulate filter.

A vehicle exhaust filter uses liquid absorption and centrifugal rotation to expel particulate matter from elongate channels.

An adhesive sheet captures surplus conductive balls from a semiconductor mask, preventing scattering and short-circuits during device mounting.

A common spherical base matrix produces flat exhaust flange variants via adjustable drilling, reducing tooling complexity across vehicle models.

An integrated channel in the container wall merges ventilation pathways with structural components, eliminating separate line attachment mechanisms.

Transverse coolant flow between segmented jackets dissipates heat from merged exhaust lines, reducing thermal overloading without fuel enrichment.

A heat shield integrates a trilobal aperture to temporarily retain fasteners for single-handed installation.

Segmenting the exhaust conduit from the adapter plate minimizes flow restrictions and manufacturing complexity while reducing space wastage.

Fast Fourier Transform converts oscillating sensor signals to frequency peaks, distinguishing ammonia interference from NOx readings.

A controller determines coolant temperature using engine heat data and ambient loss metrics to detect thermostat status.

A mounting mat with a flexible edge protectant resists hot gas erosion while maintaining installation flexibility.

Straight pipe insertion into an enlarged portion disrupts exhaust gas flow, reducing deviation and improving catalyst activation time.

Grooves and voids in the liner channel acoustic energy into insulation, reducing weight while maintaining heat dissipation.

Al-plated layer on ferritic stainless steel forms interfacial compound to resist condensate corrosion without expensive chromium additions.

Separating the fixing base from the engine with gaps prevents vibration transmission to the exhaust gas treatment device.

Segmented cover and locking members prevent theft of easily removable diesel particulate filters without complicating authorized service access.

A variable confluence exhaust pipe uses a movable valve plate to adjust flow paths.

An extended finger covers a sensor hole during differential sizing of an exhaust shell, preventing deformation and gaps that compromise weld area quality.

Upstream exhaust pipes shield the gas sensor from foreign matter collisions, eliminating dedicated protective members and reducing part count.

Angular baffle partitions internal volume into upper and lower chambers to manage exhaust water flow dynamics in compact marine mufflers.

A segmented gas mixer plate accelerates exhaust flow through openings to generate turbulence and mix introduced gases.

Segmented heating elements extend through hollow bodies in fluid reactors, eliminating heat storage removal during maintenance.

A shape memory alloy heat engine converts thermal energy into mechanical rotation to drive vehicle components.

A fluid filter functional component uses a securing contour to form a positive lock with the housing.

A coupling element pivots an exhaust-gas aftertreatment component downward upon threshold force.

A marine engine integrates a catalyst member within an internal block cavity to secure the emission control component without external housing structures.

Radial sensor placement with expanded support pipe suppresses temperature rise while maintaining compact silencer size.

Mounting the urea water supply device on a connection frame member reduces vertical distance variations and prevents freezing with thermal insulation.