Silencing Apparatus TRIZ Cases

A firearm sound suppressor uses a thermally isolated core assembly within an outer sleeve to manage heat.

Segmented collecting pipe halves wrap exhaust pipes to reduce stress concentration, simplifying welding and eliminating complex gusset components.

Upper-half pipe apertures prevent condensed water entry into the exhaust system, eliminating plugging risks caused by gravity-driven leakage.

A split exhaust muffler arrangement positions expansion chambers on opposite sides of the vehicle center to improve left-right weight balance.

Spiral-wound glass fiber inserts with circumferential seams eliminate on-site molding, reducing exhaust system installation time.

Integrally formed housing and baffles resolve manufacturing complexity and precision gaps in vehicle mufflers.

Vacuum extraction sorts particles to form graded porosity, reducing heat loss without complex manufacturing.

A straddle-type vehicle exhaust pipe positions a catalyst below the swing arm to increase layout freedom.

Liquid discharge channel diverts fluid from exhaust flow volume to collection volume, preventing probe damage.

Parallel catalyst storage case and recirculation pipe minimize space for exhaust gas recirculation connections while preventing moisture accumulation.

Distinct inlet pipes tune sound waveforms before coupling to resolve uncontrolled exhaust noise profiles.

A pipe structure with a nickel oxide coating on its outer periphery catalytically decomposes ozone in the surrounding air.

An exhaust muffler joins the communication pipe and exhaust pipe to the entrance using a single common welding bead.

Tapered inlet passages accelerate exhaust gas past a junction to form a vortex that minimizes upstream backflow and inter-cylinder disturbance.

Segmented housing receptacles accept standardized routing modules, enabling flexible engine adaptation without custom structural modifications.

Shell-side and lid-side fitting grooves constrain the radial flow channel pipe, reducing axial device length while maintaining exhaust purification function.

Expanded housing sections lower flow velocity to distribute exhaust gas evenly across the catalyst carrier, resolving purification gaps at high speeds.

A honeycomb structure body uses a virtual base design to create a cell density varying section that expands flow passages via polar coordinate magnification.

Precise alloying controls Laves phase and Cu precipitate coarsening to maintain ductility under thermal cycling.

A tri-modal exhaust valve uses a bypass channel to reduce backpressure while maintaining cabin noise levels.

An additional filter upstream of the particulate filter accelerates urea decomposition to ammonia using zeolite catalysis.

Nested perforated and non-perforated tubes attenuate exhaust noise while maintaining minimal back pressure for racing applications.

Asymmetrical connection geometries align inlet and outlet structures to the base body, preventing corrosive condensate accumulation in cramped underbody spaces.

Partial wrap mats reduce weight and reagent pooling while maintaining heat management.

Hexagonal inlet and square outlet cells in a wall flow filter reduce pressure loss and prevent cracks from thermal stress.

Segmented internal straight core directs exhaust gas flow to resolve suboptimal noise reduction and engine efficiency in motorcycle mufflers.

A slit between profile electrodes prevents short circuits, allowing stable heat generation in confined spaces.

Flexible mounting accommodates thermal expansion and physical loads, preventing deflection and gas leaks in diesel exhaust systems.

Spaced support strips attach curved fins radially inward, distributing thermal and vibrational stresses away from attachment points.

A segmented flow divider plate keeps exhaust streams separate until they enter the manifold, reducing turbulence and back pressure to improve power output.

A multi-mode exhaust muffler uses a rotary plate to vary aperture geometry and select distinct sound attenuation profiles.