FILTER FOR REMOVING PARTICLES FROM A GAS STREAM AND METHOD FOR PRODUCING SAID FILTER

A filter for removing particles from a gas stream, in particular soot particulate from an exhaust-gas stream of an internal combustion engine, including a filter body composed of a ceramic filter substrate, the filter substrate being coated with a porous protective layer of a coating material. The c...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	REINSCH, BERND, OSEMANN, CHRISTOPH
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A filter for removing particles from a gas stream, in particular soot particulate from an exhaust-gas stream of an internal combustion engine, including a filter body composed of a ceramic filter substrate, the filter substrate being coated with a porous protective layer of a coating material. The coating material contains an admixture of 1 to 20% by weight of at least one compound of an element of the second main group, which may be of an oxide of an element of the second main group, and cracks contained in the ceramic filter substrate are partially filled with the coating material. In addition, a method for manufacturing a filter, where the coating material for the porous protective layer is applied to the sintered, ceramic filter substrate, at least one compound of an element of the second main group is added, optionally other substances contained in the protective layer are added, and the porous protective layer is fixed.