Honeycomb body devices having slot-shaped intercellular apertures

Patent metadata

Field	Value
Publication number	US-9259695-B2
Application number	US-201013509836-A
Country	US
Kind code	B2
Filing date	Nov 22, 2010
Priority date	Nov 30, 2009
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

Abstract

A honeycomb extrusion body has multiple cells extending along a common direction from a first end of the body to a second end of the body. The cells are separated by cell walls, and the body has at least one fluid path defined within a plurality of said cells. The fluid path includes one or more apertures, through respective cell walls between cells of one or more respective pairs of said plurality of cells. Each aperture has an aperture width measured perpendicular to the common direction of 90% or less of a cell wall width of the respective cell wall measured perpendicular to the common direction. Optionally one or more of the plurality of cells has at least two cell walls each having an aperture at the same position in the common direction. As a further option, these apertures may be offset from the respective centers of their respective walls in the same rotational direction about a central axis of the cell.

First claim

What is claimed is:

1. A honeycomb extrusion body having multiple cells extending along a common direction from a first end of the body to a second end and separated by cell walls, the body having at least one serpentine fluid path, the fluid path having U-bends along the path joining adjacent cells of the body to each other, the fluid path defined within a plurality of said cells, the fluid path including one or more apertures, through respective cell walls between cells of one or more respective pairs of said plurality of cells, each aperture consisting of a single opening in the respective cell wall positioned next to a respective plug or seal that closes the respective pair of cells at one side of the respective aperture, each aperture having an aperture width measured perpendicular to the common direction of 90% or less of a cell wall width of the respective cell wall measured perpendicular to the common direction.

2. The honeycomb body according to claim 1 wherein the one or more apertures have an aperture width of 75% or less of the cell wall width.

3. The honeycomb body according to claim 1 wherein the one or more apertures have an aperture width of 50% or less of the cell wall width.

4. The honeycomb body according to claim 1 wherein the one or more apertures have an aperture width of 25% or less of the cell wall width.

5. The honeycomb body according to claim 1 wherein the plug or seal closes the respective cells at one of the first end of the body and the second end of the body.

6. The honeycomb body according to claim 1 wherein at least some of the one or more apertures are centered, along the direction perpendicular to the common direction, within the respective cell walls.

7. The honeycomb body according to claim 1 wherein at least some of the one or more apertures are offset from center, along a direction perpendicular to the common direction, within the respective cell walls, so as not to include the centerline of the respective cell wall within the respective aperture.

8. The honeycomb body according to claim 1 wherein the one or more apertures are positioned, along a direction perpendicular to the common direction, against the edge of the respective cell walls.

9. The honeycomb body according to claim 1 wherein one or more of the plurality of cells has at least two cell walls having an aperture at the same position in the common direction.

10. The honeycomb body according to claim 9 where the one or more of the plurality of cells has in at least two cell walls at the same position in the common direction, the apertures being offset from the respective centers of their respective walls in the same rotational direction about a central axis of the cell.

11. The honeycomb body according to claim 10 wherein the at least two cell walls are facing each other within the one or more of the plurality of cells.

12. The honeycomb body according to claim 1 wherein the one or more apertures have an aperture length measured parallel to the common direction and an aperture width measured perpendicular to the common direction and a ratio of aperture length to aperture width of at least 1.5.

13. The honeycomb body according to claim 12 wherein the ratio of aperture length to aperture width is at least 3.

14. The honeycomb body according to claim 13 wherein the ratio of aperture length to aperture width is at least 5.

15. The honeycomb body according to claim 1 wherein the at least one fluid path comprises multiple apertures in succession.

16. The honeycomb body according to claim 1 wherein the body further comprises an additional plurality of cells at least some of which are adjacent the plurality of cells in which the fluid path lies, the additional plurality of cells containing at least one additional fluid path within the body.

17. The honeycomb body according to claim 16 wherein the at least one additional fluid path comprises parallel straight passages from the first end to the second end of the body.

18. The honeycomb body according to claim 16 wherein the at least one additional fluid path comprises an additional serpentine fluid path, the additional serpentine fluid path having U-bends along the path joining adjacent cells of the body to each other, the additional serpentine fluid path includes one or more apertures consisting of a single opening in a respective cell wall, the apertures extending through the respective cell wall between one or more respective pairs of said additional plurality of cells and having an aperture width measured perpendicular to the common direction of 90% or less of a cell wall width of the respective cell wall measured perpendicular to the common direction.

19. The honeycomb body according to claim 16 wherein the at least one additional fluid path comprises multiple apertures in succession.

20. The honeycomb body according to claim 16 wherein the at least one fluid path and the at least one additional fluid path differ in one or both of (1) frequency of apertures as a function of distance along the path and (2) path length.

21. The honeycomb body according to claim 1 wherein the cell walls of the honeycomb body comprise one of glass, glass-ceramic, and ceramic.

22. A honeycomb extrusion body having multiple cells extending along a common direction from a first end of the body to a second end and separated by cell walls, the body having at least one serpentine fluid path, the fluid path having U-bends along the path joining adjacent cells of the body to each other, the fluid path defined within a plurality of said cells, the fluid path including one or more apertures, through respective cell walls between cells of one or more respective pairs of said plurality of cells, at least some of said one or more apertures being composite apertures each consisting of a group of multiple openings in the respective wall positioned together and having an aperture length and an aperture width defined by the length and width of the group, said one or more apertures being positioned next to a respective plug or seal that closes the respective pair of cells at one side of the respective aperture and having an aperture width measured perpendicular to the common direction of 75% or less of a cell wall width of the respective cell wall measured perpendicular to the common direction.

23. The honeycomb body according to claim 22 wherein the one or more apertures have an aperture width of 50% or less of the cell wall width.

Assignees

• Bhopte Siddharth
• Sutherland James Scott
• Corning Inc

Inventors

• Bhopte Siddharth
• Sutherland James Scott

Classifications

• F28F2255/16

  extruded · CPC title

• F28F2250/102

  with change of flow direction · CPC title

• F28F7/02 Primary

  Blocks traversed by passages for heat-exchange media {(F28D7/0008 takes precedence)} · CPC title

• F28F2220/00

  Closure means, e.g. end caps on header boxes or plugs on conduits · CPC title

• B01F5/0647

  Operations & Transport · mapped topic