Exhaust Apparatus TRIZ Cases

Visual minimum and maximum weld indicators help verify weld size and position, preventing undersized or oversized joints.

Movable cover plates open into an added exhaust path that reduces noise and backflow, then close to block rainwater at the pipe opening.

A segmented inner tube preserves bend strength in vehicle fluid lines while reducing residual reducing-agent volume and pump demand.

A multipart spring-supported nut maintains exhaust manifold clamping force during thermal cycling, reducing bolt bending, loosening, and leaks.

Localized laser heating and ablation tune ceramic substrate roughness to raise gripping strength, limit movement, and protect converter efficiency.

A position-dependent spring preload tensions the exhaust flap shaft near closure to cut vibration and noise without hindering rotation.

Coordinated engine speed, fan airflow, and hydraulic oil reduction suppress engine room heat during filter regeneration and protect electric equipment.

Multiple preloading springs keep the check valve sealed at low inlet pressure while absorbing fluid expansion during freezing to prevent damage.

Ambient air drawn through outlet vents cools the nozzle magnets before mixing with exhaust gas, extending connector and hose life.

A chuck mechanism replaces heat-weakened adhesives to position a hollow ceramic body in a metal pipe for stable shrink-fit assembly.

Elastic damping and locking discs let a heat shield fastener absorb positional tolerances while limiting heat and vibration transfer.

Vibration damping material in the exhaust flap coupling suppresses bearing-induced noise and limits heat transfer to the pivot drive.

Vibration damping material at the pivot shaft ends suppresses bearing friction noise in exhaust flaps while preserving compact rotational support.

Ambient-air cooling passages protect magnets in a vehicle exhaust nozzle coupling, reducing alignment effort and simplifying maintenance.

Curved insertion surfaces maintain edge contact during resistance welding, allowing angled exhaust component joints to stay stable and gas-tight.

Identical sealing elements and curved sealing surfaces keep the exhaust treatment unit gas-tight while simplifying removal and reassembly.

Integrated stop formations position silencer housing bottoms during welding to prevent displacement and ensure a gas-tight exhaust joint.

Ambient air flows through adapter openings to cool magnetic exhaust couplings, extending magnet life while keeping the tailpipe connection secure.

Multiple bayonet contours in several planes let a connector and tubular body lock securely despite positional tolerances and low axial play.

Ambient air drawn through outlet vents cools the nozzle magnets and lowers exhaust heat, extending connector and hose life.

Different-resistance heating strands tailor heat at each media line connector end to prevent freezing without causing local overheating.

A flap-mounted mass damper and heat shield suppress exhaust valve vibration, noise, and flutter while maintaining low backpressure.

An internal bias spring lets an exhaust valve open by gas pressure while cutting external packaging space and preserving smoother flow.

Pre-marked minimum and maximum weld indicators enable quick visual checks of seam coverage, improving weld positioning and avoiding excess material.

A one-piece resilient clamp uses point contact and lever action to keep a tailpipe cover securely attached despite heat and build variation.

Press-fitting tubular parts before welding holds clearance below 0.2 mm, improving repeatable thin-wall circular weld quality and handling.