# US 10,300,423 B2 · Sealed honeycomb structure

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- Number: US 10,300,423 B2
- Document ID: US10300423B2
- Status: Granted
- Kind: B2
- Application number: 15/263,073
- Filed: 2016-09-12
- Published: 2016-12-29
- Granted: 2019-05-28
- Earliest claimed: 2011-03-31
- Assignees: Hyundai Motor Company; Kia Motors Corporation; NGK Insulators, Ltd.
- Applicants: Hyundai Motor Company; Kia Motors Corporation; NGK Insulators, Ltd.
- Inventors: Tetsuo Toyoshima; Akira Takahashi; Yuichi Hamazaki; Jung Min Seo; Won Soon Park
- Web page: https://patentgrep.com/patent/US10300423B2

## CPC

- F01N 3/2828: {Ceramic multi-channel monoliths, e.g. honeycombs}
- B01D 46/247: {of the cells}
- B01D 46/2474: {of the walls along the length of the honeycomb}
- B01D 46/2482: {Thickness, height, width, length or diameter}
- B01D 46/2484: {Cell density, area or aspect ratio}
- B01D 46/2486: {characterised by the shapes or configurations}
- C04B 35/10: based on aluminium oxide
- C04B 35/66: Monolithic refractories or refractory mortars, including those whether or not containing clay {(making or repairing of linings F27D1/16)}
- C04B 38/0009: {characterised by features relating to the cell walls, e.g. wall thickness or distribution of pores in the walls}
- C04B 38/0012: {characterised by the material used for sealing or plugging (some of) the channels of the honeycombs}
- F01N 3/0222: {the structure being monolithic, e.g. honeycombs}
- C04B 2111/00793: {as filters or diaphragms}
- C04B 2235/3217: Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B 2235/349: Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
- C04B 2235/6021: Extrusion moulding
- F01N 2330/30: Honeycomb supports characterised by their structural details
- F01N 2330/60: Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction; Higher filter capacity upstream than downstream in same housing
- Y10T 428/24149: Honeycomb-like
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A sealed honeycomb structure may include porous walls dividedly forming inlet cells and outlet cells extending from an end surface of an inlet side to an end surface of an outlet side, an outlet side sealing portion, and an inlet side sealing portion, wherein at least one outlet cell is a reinforced cell, where a reinforced part for reinforcing the outlet cell is formed at at least one corner portion at which the walls on a cross-section vertical to an extending direction of the cell cross each other, and wherein the inlet cell is a non-reinforced cell where the reinforced part is not formed at all the corner portions at which the walls on the cross-section vertical to the extending direction of the cell cross each other.

## Claims

### Claim 1

A sealed honeycomb structure comprising:
porous walls dividedly forming a plurality of cells extending from an end surface of an inlet side to an end surface of an outlet side, the plurality of cells being a plurality of fluid channels;
an outlet side sealing portion mounted at openings of predetermined cells in the end surface of the outlet side to form inlet cells where the end surface of the inlet side is open and the end surface of the outlet side is sealed; and
an inlet side sealing portion mounted at openings of remaining cells in the end surface of the inlet side so as to form outlet cells where the end surface of the outlet side is open and the end surface of the inlet side is sealed,
wherein at least one cell among the outlet cells is a reinforced cell where a reinforced part for reinforcing the at least one cell among the outlet cells are formed at at least one corner portion at which the walls on a cross-section vertical to an extending direction of the cells cross each other,
wherein the inlet cells are provided with a reinforced part for reinforcing the inlet cells at at least one corner portion at which the walls on the cross-section vertical to the extending direction of the cells cross each other, and
wherein a total number of the at least one corner portion reinforcing the inlet cells is smaller than a total number of the at least one corner portion reinforcing the outlet cells.

### Claim 2 (depends on 1)

The sealed honeycomb structure of claim 1, wherein the reinforced cell comprises a reinforced corner portion at which the reinforced part is formed and a non-reinforced corner portion at which the reinforced part is not formed.

### Claim 3 (depends on 1)

The sealed honeycomb structure of claim 1, wherein the reinforced cell is configured such that the reinforced part is formed at all corner portions of the reinforced cell.

### Claim 4 (depends on 1)

The sealed honeycomb structure of claim 1, wherein the inlet cells and the outlet cells are alternately disposed across the walls.

### Claim 5 (depends on 1)

The sealed honeycomb structure of claim 1, wherein an opening shape of the inlet cells on the cross-section vertical to the extending direction of the cells is the same as an opening shape of the outlet cells without the reinforced part on the cross-section vertical to the extending direction of the cells.

### Claim 6 (depends on 1)

The sealed honeycomb structure of claim 1,
wherein a ratio of an intersecting distance of an intersecting part of the walls to an average thickness of a wall without the reinforced part among the walls is within a range of 1.5 to 93, and
wherein the intersecting distance of the intersecting part of the walls is a distance from a surface of the reinforced part of the reinforced cell to a surface of another cell disposed across an intersecting point of the walls dividedly forming reinforced cells.

### Claim 7 (depends on 1)

The sealed honeycomb structure of claim 1, wherein each reinforced part occupies 0.05 to 20% of an area of an opening portion without the reinforced part on the cross-section vertical to the extending direction of the cells.