Particle filter with carbon deposit combustion for diesel engines
AssigneeHJS Fahrzeugtechnik GmbH & Co.
InventorsGerhard Jürgen Fränkle, Hermann Josef Schulte, Hans Peter Frisse, Carsten Jutka, Jochen Koll, Klaus Schrewe
Life of this patent
Estimating the term…
Abstract
In a particle filter with carbon (soot) deposit combustion for Diesel engines comprising a filter with filter areas of sinter metal through which exhaust gases from the Diesel engine are conducted to remove the soot therefrom, the soot collected at the raw gas side of the filter surfaces is burned off by radiation heaters which are arranged so as to radiate between wedge-like filter pockets of the particle filter such that selected areas of the filter are heated to initiate combustion of the soot on the filter surfaces.
Claims13
A particle filter (5) with soot combustion for Diesel engines (1), comprising a filter body (10) having filter areas of sinter metal through which the engine exhaust gas is conducted from an upstream raw gas side to a downstream clean gas side, said particle filter including electric heaters (22) disposed at the raw gas side for heating selected filter areas and initiating combustion of the soot collected on the raw gas side of said filter areas by contact-free application of heat to selected filter areas, said filter body (10) comprising wedge-like filter pockets (11) having triangular openings (15) arranged in a common plane and, opposite said triangular openings (15), front edges (18) projecting in the upstream direction and triangular back walls (17) extending said common plane to said front edges at a circumference of said filter body (10), said pockets forming therebetween chambers which become narrower toward said opening plane (15) and also toward the area opposite said back walls (17), said electric heaters (22) being radiation heaters (31, 33) arranged so as to direct heat into the narrowing space between said filter pockets (11).
Dependencies are inferred from the claim text.