Silencing Apparatus TRIZ Cases

A flow distribution device uses a plate with varying aperture sizes to direct exhaust gas radially outward for uniform velocity.

A silencer uses a metal bellows to actuate the valve disk automatically via exhaust pressure.

Porous exhaust coatings maintain mechanical strength by preventing pore union during high temperature operation.

An exhaust silencer uses a switchable pipe coupled to a damper system to vary damping characteristics, reducing flow resistance while minimizing noise emission.

A quarter-resonance tuner tube in an exhaust muffler attenuates standing waves generated when the electronic valve closes.

Parallel muffler chambers distribute exhaust flow laterally to reduce longitudinal length, maintaining capacity while minimizing wheelbase.

A bilobate terminal conduit with an intermediate choke dissipates heat from portable engine exhaust gases, reducing user exposure to high temperatures.

A nested inner shell prevents thermal discoloration of the visible outer shell while maintaining structural stability through localized support areas.

Titanium alloy with optimized copper and tin content enhances high-temperature strength while maintaining oxidation resistance at 800°C.

Needle punching interweaves fibers inside a perforated casing, eliminating complex firing steps and contamination risks.

Segmented end pipe cover uses positive locking and annular securing elements to simplify assembly while minimizing exhaust gas flow disruption.

An asymmetric tail pipe outlet flares outward to reduce exhaust gas flow velocity and attenuate noise without adding vehicle weight.

Optimized austenitic cast steel composition reduces nickel usage while maintaining fatigue life and creep resistance at high temperatures.

An actuator excites a muffler housing wall to oscillate, generating pressure pulsations that cancel exhaust noise without extra membranes.

Concentric inlet tubes create a venturi effect to attenuate exhaust noise without increasing muffler volume or restricting engine power.

Segmented metal brackets expand the heat transfer path between a vehicle muffler and its rubber damper.

An elastic clamping element protrudes axially beyond a tailpipe to brace the trim against collision forces, preventing engine damage.

Segmented muffler shells reduce packaging volume while maintaining noise performance for dual-exhaust systems.

Segmented expansion chambers and nested partition walls reduce muffler weight while maintaining acoustic performance.

Vertical trapezoidal end covers expand internal capacity to reduce weight and cost, fitting compact portable generators.

A micro-perforated outer shell dissipates acoustic energy through direct gas discharge.

A sound deflector directs exhaust gases onto arcuate perforated baffles, resolving inefficient gas distribution that limits noise reduction.

Porous catalytic assembly in vehicle sound tunnel reduces high-frequency noise and prevents exhaust gas entry into the cabin.

Asymmetric duct placement expands the resonance frequency band to cover wider engine rotation speeds.

Integrates resistive metal elements into an insulating support layer to heat emission treatment components directly.

Silicon-based aerogel coating reduces thermal loss, shortening catalyst activation time and improving fuel efficiency.

Molding prevents non-cylindrical housing deformation during heat treatment by distributing pressure evenly across contact faces.

An eccentric double pipe tail pipe positions an internal pipe off-center to create variable thickness in the noise absorbing material.

Pre-reacted inorganic spheroidal particles optimize rheological properties for ceramic honeycomb extrusion.

An undercut elastomer stiffening structure prevents exhaust component extraction under impact while maintaining vibration damping.

Patsnap Eureka vacuum board cavity insulation reduces noise in beverage labeling machines.

A gas-flow deflector shields exhaust silencer walls from thermal damage by redirecting hot jets and forming an insulating air gap.

A compact exhaust heating module uses radial flow deflection chambers to mix hot secondary branch gas with the main exhaust stream.

Double structure inside cases with outward-extending sensor boss bodies maintain exhaust gas temperature balance.

A tubular exhaust patch with pores and a wire mesh insert dampens sound waves while maintaining structural rigidity.

Fiber-reinforced plastic holders replace metal frames to lower weight and assembly complexity without sacrificing structural strength.

A single attenuator chamber uses variable density absorbing material to dissipate broadband noise, eliminating the need for multiple resonator chambers.

Continuous glass fiber knitting eliminates binder use and prevents fiber scattering under high exhaust backpressure.

A flexible smoke evacuator head uses a porous plenum support to maintain vacuum integrity without collapsing during surgical procedures.

A lithium battery electrolyte composition uses a specific mixture of cyclic carbonate, chain carbonate, and ester solvents to enhance ion mobility.

Circumferential slots generate meandering force flow paths that distribute stress peaks and prevent plastic deformation in sheet-metal muffler bottoms.

Sliding the downstream filter case along the axis prevents thermal stress concentration and improves durability under high temperature operation.