There is provided a method for filling a silencer with glass fiber, for filling an internal space between a case and an inner pipe with glass fiber in a silencer in which a porous inner pipe penetrates through a pair of through holes in the case, the method including shifting the inner pipe in a penetrating direction from a normal position where the inner pipe is secured to the case, inserting a nozzle auxiliary portion into an interior of the case from a through hole opened by the inner pipe being shifted, supplying glass fiber into the interior of the case from a nozzle of a glass fiber supply machine connected to the nozzle auxiliary portion, and filling the internal space between the case and the inner pipe with glass fiber.

There is provided a method for filling a silencer with glass fiber, for filling an internal space between a case and an inner pipe with glass fiber in a silencer in which a porous inner pipe penetrates through a pair of through holes in the case, the method including shifting the inner pipe in a penetrating direction from a normal position where the inner pipe is secured to the case, inserting a nozzle auxiliary portion into an interior of the case from a through hole opened by the inner pipe being shifted, supplying glass fiber into the interior of the case from a nozzle of a glass fiber supply machine connected to the nozzle auxiliary portion, and filling the internal space between the case and the inner pipe with glass fiber.

A method operates a particulate filter through which exhaust gas can flow in a vehicle, in which ash is introduced into a filter body of the particulate filter, wherein at least one ash former or at least one ash component is arranged on at least one carrier material upstream of the filter body in the direction of flow of the exhaust gas.

A method operates a particulate filter through which exhaust gas can flow in a vehicle, in which ash is introduced into a filter body of the particulate filter, wherein at least one ash former or at least one ash component is arranged on at least one carrier material upstream of the filter body in the direction of flow of the exhaust gas.

A cleaning tool for an aftertreatment device including a vacuum attachment port having an exterior end and an interior end, a vacuum extension extending from the interior end of the vacuum attachment port, wherein the vacuum extension has a concave inner surface adapted to engage an end of the aftertreatment device, wherein the concave inner surface of the vacuum extension is adapted to secure the cleaning tool to the end of the aftertreatment device when a vacuum is applied from the exterior end of the vacuum attachment port by having the concave inner surface provide a vacuum sealing engagement with the end of the aftertreatment device when the vacuum is applied from the exterior end of the vacuum attachment port.

A cleaning tool for an aftertreatment device including a vacuum attachment port having an exterior end and an interior end, a vacuum extension extending from the interior end of the vacuum attachment port, wherein the vacuum extension has a concave inner surface adapted to engage an end of the aftertreatment device, wherein the concave inner surface of the vacuum extension is adapted to secure the cleaning tool to the end of the aftertreatment device when a vacuum is applied from the exterior end of the vacuum attachment port by having the concave inner surface provide a vacuum sealing engagement with the end of the aftertreatment device when the vacuum is applied from the exterior end of the vacuum attachment port.