Silencing Apparatus TRIZ Cases

A muffler uses integrally molded porous partitions to create sub-cavities for acoustic fiber placement.

Modular stage packages resolve platform inflexibility by enabling easy component substitution for varied power configurations.

Segmented end cap zones with angled flanges hold a straight perforated pipe, preserving length for sound absorption while reducing packaging volume.

Segmented chambers with localized acoustic absorbents increase discharge pipe length to eliminate booming noise while preventing heat transfer to the car body.

Central exhaust passage extends through collector outlet plane to maintain consistent cross-sectional area and enhance flow velocity.

A hybrid locking cable tie uses offset wedges to engage strap teeth on opposite sides, balancing insertion force with loop tensile strength.

A compact inline inlet uses an integrated cast ring to provide structural mounting support within exhaust gas aftertreatment assemblies.

Curved internal veins accelerate exhaust gases through a venturi effect, reducing back pressure while maintaining noise suppression.

A rear muffler assembly uses a shutoff flap to direct exhaust gases through perforated pipes and insulating material.

A vehicle muffler uses an intermediate pipe to fluid connect multiple chambers formed by baffles, routing exhaust gas through distinct paths.

A surface coat layer uses distinct inorganic material compositions to maintain uniform thickness on exhaust pipe bumps and edges.

Segmented closed spaces function as resonance chambers to reduce low-frequency noise while maintaining a compact double-pipe structure.

A vehicle exhaust system uses a branch pipe with punched resonance holes inside a divided muffler housing to attenuate sound waves.

High chromium filler metal in the weld bead isolates the primary substrate from salt and urea, resolving corrosion at joints.

A flexible connection line links an exhaust pipe to a resonance chamber within the vehicle body structure.

Segmented inner pipe openings create distinct acoustic paths that resolve the trade-off between multi-frequency attenuation and installation space constraints.

Segmented exhaust outlets expand boundary surface area to cool engine gases while minimizing increases in exhaust back pressure.

A T-shaped baffle plate divides a silencer into three expansion chambers, resolving insufficient gas expansion and partition wall vibration in compact layouts.

Pre-formed detent formations enable elastic pipe insertion, eliminating complex reshaping operations during assembly.

Nested inner and outer communicating tubes prevent direct gas flow between ports, ensuring full expansion within chambers to resolve volume utilization limits.

Tubular flow diffuser channels exhaust gas through expanding passages to reduce velocity and promote ambient air mixing.

A switchable muffler uses a second outlet pipe to modify Helmholtz resonator frequencies for dynamic exhaust noise control.

A vehicle exhaust muffler valve uses gas pressure to maintain closure without springs.

Segmented muffler outlets with removable caps resolve the trade-off between exhaust versatility and structural complexity.

Curved exhaust pipe section with indented inner surface generates turbulence to cool exhaust gases.

A pulsation surface component creates a reservoir to hold diverted exhaust gases and re-circulate them into the primary flow path.

Fins on the thermo-conductive enclosure dissipate heat to stabilize internal air pressure and maintain acoustic performance in high temperatures.

Spaced connection points create uniform connection-free areas in the metallic layer, enhancing thermal shock resistance and durability under dynamic loads.

Reinforcing plates welded to the shell disperse strain concentration, reducing radiated sound while minimizing weight.

Modular canopy system with thin sheet metal partitions isolates intake and exhaust zones to reduce generator set noise emissions.

Third through-holes in the outer pipe enable rapid liquid drainage while a seal member prevents exhaust gas leakage to resolve productivity contradictions.

Nested perforated structures create a multi-chamber Helmholtz design that suppresses broadband engine noise within limited mounting space.

An intermediary coupling device with inner and outer bushes absorbs thermal expansion and vibration, preventing fastener loosening and frictional wear.

A corrosion resistant alloy with specific nickel and chromium ranges provides superior fatigue resistance.

Metal mesh seal distributes dynamic pressure to prevent premature valve opening from instantaneous pressure spikes in exhaust mufflers.

Sacrificial foil maintains uniform spacing during soldering, preventing structural damage and enabling automated production of honeycomb structures.

Polyhedral muffler housing uses baffles to divide interior chambers, reducing flow resistance while enhancing sporty exhaust sound.

Segmented plate-shaped longitudinal walls define the neck volume, resolving space constraints and manufacturing complexity in dual-flow systems.

A prestressing device applies outward forces to a muffler housing shell to stabilize the structure and reduce natural vibrations.

An active cooling system uses a blower and venturi nozzle to lower exhaust pipe temperatures, preventing burns during low-speed operation.

Multiple reactive cavities cancel low-frequency signals across broad bands, suppressing engine noise while maintaining efficiency and reducing backpressure.

A combined exhaust gas noise silencer system divides flow into non-delayed and delayed streams using resonator tubes.

A discharge muffler uses an inner duct with offset holes to reflect acoustic waves across wide frequency ranges.

A wire mesh decouples an exhaust heat shield from the housing, reducing temperature and noise.

A road finisher muffler serves as a structural mounting point for an emission pipe, combining exhaust and discharge functions into a single unit.

Alternating impermeable and porous pipe sections create quarter-wave resonators that reduce sound pressure levels without increasing installation space.

A sliding support member accommodates pipe thermal expansion, preventing interference and pressure buildup in coaxial exhaust mufflers.