Conical honeycomb body having channels extending radially outward at an angle and honeycomb body assembly

1. A honeycomb body, comprising:

an inside, an outside and a geometric central axis;

wound layers each running concentrically around said central axis and defining an outer lateral surface and a cavity disposed rotationally symmetrically around said central axis, said layers being sheet-metal layers;

at least one of said layers being at least partially structured to form a multiplicity of channels through which a fluid can flow;

said channels running outwardly from said cavity to said outer lateral surface at a non-perpendicular cone angle relative to said central axis;

said channels having a channel cross section varying over a course of said channels from said inside to said outside;

at least one intermediate layer being disposed in alternation with said at least one structured layer; and

said at least one intermediate layer and said at least one structured layer being layered on top of one other in a helical shape;

said at least one at least partially structured sheet-metal layer having a structure defined by individual corrugations each having respective opposing flanks, each of said opposing flanks having a respective flank corrugation

for defining an approximately constant structure height of said individual corrugations from said inside to said outside.

2. The honeycomb body according to claim 1 , wherein at least said cavity or said lateral surface is cylindrical.

3. The honeycomb body according to claim 1 , wherein said cone angle relative to said central axis is 25° to 85° .

4. The honeycomb body according to claim 1 , wherein said channels have a constant structure height, and said channels have cross-sectional areas increasing from said inside to said outside.

5. The honeycomb body according to claim 1 , wherein said cavity is axially offset relative to said lateral surface, forming a first conical side face and a second hollow conical side face.

6. The honeycomb body according to claim 1 , wherein said intermediate layer has slots formed therein so as to extend inward from said outer lateral surface along a profile of said channels.

7. The honeycomb body according to claim 1 , wherein said intermediate layer has triangular cutouts formed therein being dimensioned to cause said intermediate layer, after being bent into a final helical shape, to form a closed intermediate layer.

8. The honeycomb body according to claim 1 , wherein said intermediate layer is folded along fold lines to generate overlaps with a threefold material thickness and to form a helical profile of said intermediate layer.

9. A honeycomb body assembly, comprising:

a cylindrical honeycomb body through which a fluid can flow along a geometric central axis; and

a honeycomb body according to claim 1 combined with said cylindrical honeycomb body.

10. The honeycomb body assembly according to claim 9 , which further comprises a housing in which said honeycomb bodies are disposed with said geometric central axes aligned.

11. A honeycomb body, comprising:

an inside, an outside and a geometric central axis;

wound or stacked layers each running concentrically around said central axis and defining an outer lateral surface and a cavity disposed rotationally symmetrically around said central axis;

at least one of said layers being at least partially structured to form a multiplicity of channels through which a fluid can flow;

said channels running outwardly from said cavity to said outer lateral surface at a non-perpendicular cone angle relative to said central axis;

said channels having a channel cross section varying over a course of said channels from said inside to said outside;

at least one intermediate layer being disposed in alternation with said at least one structured layer; and

said at least one intermediate layer and said at least one structured layer being layered on top of one other in a helical manner;

all of said layers being structured sheet-metal layers including alternating structured sheet-metal layers with a coarse structure and intermediate layers with a fine structure, said coarse and fine structures having dimensions differing by at least a factor of 3.

12. A honeycomb body, comprising:

an inside, an outside and a geometric central axis;

wound or stacked layers each running concentrically around said central axis and defining an outer lateral surface and a cavity disposed rotationally symmetrically around said central axis;

at least one of said layers being at least partially structured to form a multiplicity of channels through which a fluid can flow;

said channels running outwardly from said cavity to said outer lateral surface at a non-perpendicular cone angle relative to said central axis;

said channels having a channel cross section varying over a course of said channels from said inside to said outside;

at least one intermediate layer being disposed in alternation with said at least one structured layer; and

said at least one intermediate layer and said at least one structured layer being layered on top of one other in a helical manner

said layers being sheet-metal layers, and said intermediate layer being at least one wire running in a helical manner between said structured sheet-metal layers.