Silencing Apparatus TRIZ Cases

Segmenting the internal space into distinct chambers reduces back pressure while maintaining resonance, improving power performance without adding complexity.

Inclined outer pipe with nested inner pipes reduces silencer width while increasing bank angle.

Mounting an inclined intake element under the seat rail reduces vehicle height while protecting the component from dust contamination.

A circumferential wall holds exhaust pipes through dedicated openings and closing elements to create stable connections.

Replacing hot welding with mechanical coupling and adhesive bonding allows taller stilling wells and flexible material selection in engine coolant tanks.

Offset connecting sections on exhaust gas treatment carrier elements press fibers inward during assembly, preventing accumulation at contact points.

Variable diameter inlet pipes route exhaust flow through distinct paths, balancing noise attenuation with reduced backpressure in compact packaging.

A parallel channel exhaust aftertreatment module redirects gas flow through multiple catalytic bricks to increase treatment surface area.

Spring-elastic strips cushion axial forces on exhaust tubes, eliminating sliding seat jamming and noise from thermal expansion.

Segmented muffler housing and baffles resolve the contradiction between structural stability and ease of repair by enabling component replacement.

A Helmholtz resonator silencer couples an exhaust pipe to an expansion chamber via perforations for low flow velocity gas movement.

Welded inner cylinder creates expansion chambers to prevent exhaust gas leakage and reduce muffler weight.

A selective active noise cancellation system drives specific zone loudspeakers to generate targeted cancellation fields.

Segmented radial SCR substrates in a mixing duct reduce NOX emissions while maintaining low backpressure.

Vertical stacking of central and satellite mufflers reduces combustion noise while maintaining compact packaging.