Silencing Apparatus TRIZ Cases
- Muffler Housing Thermal Management via High Emissivity Insulation
High emissivity insulation on a riding lawn mower muffler reduces exterior temperature to prevent ignition of dry cut material.
- Exhaust Actuator Connection with Widened Flow Cross Section
Widening the flow cross section reduces vortex formation and gas exchange, enabling shorter connection sections while maintaining thermal decoupling.
- Exhaust Tail Trim Using Composite Heat Pipe and Resin Cover
Replacing coated stainless steel with a composite structure eliminates coating peeling and discoloration while reducing weight.
- Exhaust Gas Burner Assembly with Mixing Apertures
Circumferential mixing apertures in a supply pipe disperse heated burner flow to rapidly heat the catalytic converter while minimizing exhaust backpressure.
- Compact Vehicle Pollution Control System with Flat Housing
Flat-surfaced elongated housing reduces radial size to fit transmission return modules while maintaining internal volume through longitudinal extension.
- Silencer Half-Shells With Integrated Fastening
Integrated collars and tabs join muffler half-shells, eliminating separate fasteners that increase complexity.
- Flexible Conduit Outer Ring Fixation via Dual Welding
A flexible conduit outer ring connects to an inner fixing member and exhaust component using two distinct welds for secure assembly.
- Exhaust Diffuser Box for Vocational Truck Cab Heat Management
A diffuser box disperses exhaust gases through a meshed grill to prevent localized hot spots near the truck cab.
- Dual Exhaust Pipe Structure for Compact In-Line Engine Heat Retention
Nested inner and outer pipes with recessed weld zones prevent back bead interference, improving heat retention and catalyst activation.
- Needle-Punched Mat Member for Muffler Fiber Detachment
Needle punching forms closed-loop fiber bundles at protrusion marks, preventing detachment from exhaust gas erosion while maintaining noise reduction.
- Heat Resistant Spheroidal Graphite Cast Iron Alloy Design
A heat resistant spheroidal graphite cast iron alloy uses barium to facilitate graphite nucleation.
- Exhaust Manifold Hollow Layer for Catalyst Temperature Control
Selective hollow layers on long branch channels retain exhaust heat for rapid catalyst activation while preventing overheating in shorter channels.
- Exhaust Muffler Dual Helmholtz Resonators Compact Design
A compact exhaust muffler integrates two Helmholtz resonators within a single pipe to expand the muffling spectrum.