Holding sealing material, method for manufacturing holding sealing material, exhausted gas purifying apparatus, and method for manufacturing exhaust gas purifying apparatus

• US 9,638,084 B2
• Filed: 04/02/2014
• Issued: 05/02/2017
• Est. Priority Date: 10/05/2011
• Status: Active Grant

• Current Assignee: Ibiden Co., Ltd.
• Original Assignee: Ibiden Co., Ltd.
• Inventors: Saiki, Kenzo
• Primary Examiner(s): GRIFFIN, WALTER DEAN
• Assistant Examiner(s): Perez, Jelitza
• Application Number:
  US14/242,988
• Publication Number:
  US 20140212340A1
• Time in Patent Office: 1,126 Days
• Field of Search: None
• CPC Class Codes: B01J 35/56 Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
• CPC Class Codes: D06H 7/00 Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials web delivery apparatus incorporating cutting devices B65H35/0006
• CPC Class Codes: F01N 3/0211 Arrangements for mounting filtering elements in housing, e.g. with means for compensating thermal expansion or vibration
• CPC Class Codes: F01N 3/2864 the mats or gaskets comprising two or more insulation layers
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A holding sealing material includes a one-sheet mat including inorganic fibers. The one-sheet mat includes a first mat with a first side face and a second mat with a second side face. A part of the first side face and a part of the second side face are foldably and integrally connected.

Claims

1. A holding sealing material comprising:

a one-sheet mat including inorganic fibers and comprising;

a first mat with a first side face; and

a second mat with a second side face, a part of said first side face and a part of said second side face being foldably and integrally connected,

wherein said first mat and said second mat each have a pair of fitting portions configured to fit to each other when the holding sealing material is wound around an exhaust gas treating body.

2. The holding sealing material according to claim 1,

wherein a length of said first mat in a longitudinal direction is different from a length of said second mat in a longitudinal direction.

3. The holding sealing material according to claim 1,

wherein a portion where said first mat and said second mat are foldably connected is provided in a direction parallel to a longitudinal direction of said first mat and a longitudinal direction of said second mat.

4. The holding sealing material according to claim 3,

wherein the portion where said first mat and said second mat are foldably connected is from about 1/20 to about ⅓

a length of said one-sheet mat in a longitudinal direction.

5. The holding sealing material according to claim 3,

wherein the portion where said first mat and said second mat are foldably connected has a length of from about 5 to about 150 mm.

6. The holding sealing material according to claim 1,

wherein a portion where said first mat and said second mat are foldably connected is provided with a slit formed on at least one of a front face and a back face of said one-sheet mat in a thickness direction of said one-sheet mat.

7. The holding sealing material according to claim 6,

wherein a depth of said slit is from about ⅕

to about ⅘

a thickness of said one-sheet mat.

8. The holding sealing material according to claim 1,

wherein the pair of fitting portions of said first mat and the pair of fitting portions of said second mat each have a recessed portion and a projected portion, and arrangement of the recessed portion and projected portion of the first mat is different from arrangement of the recessed portion and projected portion of the second mat.

9. The holding sealing material according to claim 1,

wherein, when the holding sealing material is wound around a round pillar-shaped exhaust gas treating body, the pair of fitting portions of said first mat and the pair of fitting portions of said second mat satisfy a following formula (1) or (2), and the pair of fitting portions of said first mat and the pair of fitting portions of said second mat are located at different sites on an outer peripheral surface of the exhaust gas treating body, the formulas being:

when a≧

b×

L₁/L₂,

(b+c)×

L₁/L₂≦

a≦

(b−

c+L₂)×

L₁/L₂  

 

(1),

when a≦

b×

L₁/L₂,

(b+c−

L₂)×

L₁/L₂≦

a≦

(b−

c)×

L₁/L₂  

 

(2),

a;

distance from a “

starting position of the projected portion”

to a “

center of a connected portion”

of said first mat

b;

distance from a “

starting position of the projected portion ”

to a “

center of a connected portion”

of said second mat

c;

length of the projected portion of each fitting portion

L₁;

length of said first mat in a longitudinal direction

L₂;

length of said second mat in a longitudinal direction.

10. The holding sealing material according to claim 1,

wherein two or more of portions where said first mat and said second mat are foldably connected are provided.

11. The holding sealing material according to claim 10,

wherein one of the portions where said first mat and said second mat are foldably connected is shorter and more scissile than another connected portion or connected portions.

12. The holding sealing material according to claim 1,

wherein said one-sheet mat has a thickness of from about 1.5 to about 15 mm.

13. The holding sealing material according to claim 1,

wherein said one-sheet mat further comprises identification information for identifying a folding direction on at least one surface.

14. The holding sealing material according to claim 1,

wherein a length of said first mat in a width direction perpendicular to a longitudinal direction is different from a length of said second mat in a width direction perpendicular to a longitudinal direction.

15. The holding sealing material according to claim 14,

wherein a difference between the length of said first mat in said width direction and the length of said second mat in said width direction is about 10 mm or less.

16. A holding sealing material comprising:

a one-sheet mat including inorganic fibers and comprising;

a first mat with a first side face; and

a second mat with a second side face, a part of said first side face and a part of said second side face being foldably and integrally connected,

wherein two or more of portions where said first mat and said second mat are foldably connected are provided, and

wherein one of the portions where said first mat and said second mat are foldably connected is shorter and more scissile than another connected portion or connected portions.