Exhaust Apparatus TRIZ Cases

Sliding engagement bodies insert into recesses while form-fit arrangements hold components against displacement, reducing integration time.

Resistive patches cover exhaust holes with spacers to reduce noise while maintaining structural integrity.

Interchangeable mufflers and coordinated shut-off devices minimize back pressure while enabling flexible acoustic adjustments.

An oxygen sensor positioned downstream from the selective catalytic reduction catalyst measures oxygen storage capacity to monitor catalyst health.

Partitioning unit vents air bubbles from annular space to maintain water level and cooling performance during vehicle inclination.

Comparing a computational soot loading model with differential pressure data prevents excessive regeneration cycles and reduces uncontrolled emissions.

Movable sleeve blocks orifices to tune attenuation levels, resolving the trade-off between variable noise control and fixed structure complexity.

A plugged honeycomb catalyst body uses porous partition walls and projecting portions to distribute catalytic material effectively.

An electric heater warms exhaust aftertreatment devices before engine startup, resolving poor catalyst efficiency during cold starts.

Segmented shielding apron distributes thermal load to extend service life under wastegate jet conditions.

A fuel analysis system monitors catalyst temperature to detect impure fuel consumption and trigger operator alerts.

Orthogonal catalyst positioning in straddled vehicles simplifies the exhauster structure while maintaining purification performance.

Radial struts segment the hot exhaust core stream while air channels introduce ambient cooling gas, reducing exit temperatures and velocities.

A capacitance-based protection system monitors electrical continuity to detect unauthorized catalytic converter removal.

A polymeric collector member conceals the vehicle tailpipe while maintaining high temperature resistance.

Gravity-fed water cooling and wet exhaust manifold resolve safety risks from heat and fumes in enclosed spaces.

Two switchable sound transmission connections enable three switching states, increasing low-rpm torque and eliminating the middle muffler.

Mechanical coupling between gear pump supercharger and decompressor transfers exhaust energy to reduce weight while sediment separator removes solid residues.

Segmented housing and nested receiving tube enable quick particulate filter replacement without full disassembly.

Positioning a roughly elliptic muffler between the swing arm and seat suppresses rear protrusion while maintaining silencing performance.

A pipe-in-pipe outlet arrangement folds exhaust flow through nested deflection pipes to create a long acoustic path within a compact housing.

Longitudinally offset inlet ports stagger exhaust gas arrival to prevent stuffing, while integrated cooling passages cool power steering fluid.

Vertical stays support the muffler protector to curb outward bulge, while wind guiding ports discharge hot air to lower surface temperature.

Segmented sensor placement and catalytic conversion eliminate NH3 cross-sensitivity interference for accurate NOx readings.

A movable barrier kit attaches to vehicle bodies to block fuel cap access until manually displaced.

Embedded metal in honeycomb substrates reaches light-off temperature quickly, reducing cold-start emissions.

A unitary intake manifold design merges exhaust recirculation ducts and fluid delivery ports into a seamless structure.

Segmented housing shell design accommodates differential thermal expansion, preventing structural instability and noise generation.

A single actuator unit controls multiple exhaust pipe valves via wire cables connected to independent pulleys.

A cover with integrated filler necks extends from the housing wall to connect service fluid lines.

Bracket mounts exhaust pipe to engine block, reducing vibration without adding weight.

Fairing reduces aerodynamic drag and pressure differential by redirecting airflow around the exhaust stack.

A cylinder head integrates a cooling water passage near an exhaust pressure bypass path to reduce sensor temperature.

A reciprocating piston precisely measures and mixes small fluid volumes, eliminating probe fouling from algae buildup in water testing systems.

Segmented tubular liners engage via a connecting hole to resolve displacement gaps while suppressing exhaust heat transfer.

Segmenting exhaust flow protects temperature-sensitive catalysts from thermal damage during high-temperature filter regeneration.

A muffler with an asymmetric communication pipe balances exhaust sound from dual inlets by equalizing flow paths through a catalyst chamber.

An exhaust sensor positioned underneath a radiator and overlapping an engine hanger portion in a saddle riding vehicle.

A casting-based exhaust valve device uses diameter enlarged portions to align sealing surfaces with the valve element outer shape.

A cylinder head incorporates a material cutout between fluid and cooling channels to resist heat transfer, reducing cooling requirements and fuel consumption.

Alkali metal carbonate coating prevents vanadium permeation and enables acid wash regeneration to restore de-NOx performance.

A precious metal oxidation catalyst on an inorganic matrix enables diesel fuel combustion at low exhaust temperatures.

Bracket secures muffler to elastomeric isolator via rod and heat shield, protecting rubber from high temperatures and mechanical abuse.

A vehicle grille shutter controller manages aperture position to balance engine room thermal conditions.

Transverse baffles segment the cooling passage to disperse liquid flow, reducing reversion damage to oxygen sensors.

Model predictive control adjusts ammonia injection during transients, preventing NOx excursions and reducing waste.

A movable platform within a base frame positions the emissions control system adjacent to the power source.

A vehicle underbody heat insulator creates a vertical gap to block high-temperature air from the exhaust pipe.