JP2009240867A - ハニカム構造体 - Google Patents
ハニカム構造体 Download PDFInfo
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- JP2009240867A JP2009240867A JP2008088150A JP2008088150A JP2009240867A JP 2009240867 A JP2009240867 A JP 2009240867A JP 2008088150 A JP2008088150 A JP 2008088150A JP 2008088150 A JP2008088150 A JP 2008088150A JP 2009240867 A JP2009240867 A JP 2009240867A
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- outflow side
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2425—Honeycomb filters characterized by parameters related to the physical properties of the honeycomb structure material
- B01D46/24491—Porosity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2425—Honeycomb filters characterized by parameters related to the physical properties of the honeycomb structure material
- B01D46/244—Honeycomb filters characterized by parameters related to the physical properties of the honeycomb structure material of the plugs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2459—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the plugs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2482—Thickness, height, width, length or diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2484—Cell density, area or aspect ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2498—The honeycomb filter being defined by mathematical relationships
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
- F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/30—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for treatment of exhaust gases from IC Engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/30—Honeycomb supports characterised by their structural details
- F01N2330/48—Honeycomb supports characterised by their structural details characterised by the number of flow passages, e.g. cell density
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/60—Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction; Higher filter capacity upstream than downstream in same housing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
【解決手段】流出側端部Bにおける目封じ部7のヤング率が、流入側端部Aにおける目封じ部7のヤング率よりも低いハニカム構造体、即ち、流出側目封じ部7の平均断面積が流入側よりも大きく、流出側目封じ部7の深さが流入側よりも浅く、流出側目封じ部7の気孔率が流入側よりも大きいハニカム構造体を形成する。
【選択図】図3
Description
図1は本発明の一実施形態である接合型ハニカム構造体1を模式的に示す斜視図である。図2は、図1のハニカム構造体1を構成するハニカムセグメント2を示す斜視図である。さらに、図3は、図2のハニカムセグメント2のX−X断面図である。
本発明の実施形態2について説明する。図4は本発明の別の実施形態である一体型ハニカム構造体20を模式的に示す斜視図である。ハニカム構造体20は、一体成形されており、セル5はハニカム構造体20の中心軸方向に互いに並行するように配設されており、隣接しているセル5におけるそれぞれの端部が交互に充填材7によって目封じされている。
直径144mm×長さ152mmの円筒形状であり、セルの断面形状が正方形であり、かつ隣接するセルが互いに反対側の端部で目封じされており、流入側目封じ部深さD1が10.0mm、流出側目封じ部深さD2が7.5mm、流入側目封じ部気孔率P1が50.0%、流出側目封じ部気孔率P2が60.0%、流入側平均目封じ部断面積S1が0.5mm2、流出側平均目封じ部断面積S2が1.0mm2のハニカム構造体を気孔率52%材料より作成した。表1に、流入側平均目封じ部断面積S1に対する流出側平均目封じ部断面積S2の比である平均目封じ部断面積比S2/S1と共に、各パラメータの値を示した。
表1に示したように、流出側目封じ部深さD2、流出側目封じ部気孔率P2、流入側平均目封じ部断面積S1、及び流出側平均目封じ部断面積S2を変更したほかは、実施例1と同様にして実施例2〜8、比較例1〜19を製造した。
各実施例及び比較例に係るハニカム構造体をエンジンの排気通路に配設して排ガス浄化装置(DPF)とし、上記エンジンにてスートを堆積させた後に再生処理を行う実験を行い、再生時のクラック限界値を測定し、結果を表1に示した。まず、スートを堆積させたDPFに1700rpm×95Nmでポスト噴射をし、入口排ガス温度を650℃まで上昇させ、DPFの前後差圧が低下したところで1050rpm×30Nmに切り替え、エンジン運転条件をアイドル状態にした。その際、酸素濃度が急上昇し、流量が低下するため、DPF内部温度は、急激に上昇し、材料限界を超えるとDPF流出側端部にクラックが生じる。スート量を徐々に増加させていき、クラックが生じた時の体積あたりのスート量[g/L]を再生時クラック限界値とした。また、各ハニカム構造体の流入側目封じ部と流出側目封じ部におけるヤング率の差(流入側目封じ部ヤング率−流出側目封じ部ヤング率)も目封じ部ヤング率差として表1に示した。
Claims (4)
- 多孔質の隔壁によって区画された被処理流体の流路となる複数のセルを有し、前記被処理流体の流入側端部において所定の前記セルが充填材により目封じされ、前記被処理流体の流出側端部において残余の前記セルが前記充填材により目封じされたハニカム構造体であって、
前記流入側端部における目封じ部の前記セルの中心軸方向に対する垂直断面積の平均を流入側平均目封じ部断面積S1、前記流出側端部における目封じ部の前記セルの中心軸方向に対する垂直断面積の平均を流出側平均目封じ部断面積S2とした場合に、S1<S2の関係であり、
前記流入側端部における前記目封じ部の深さを流入側目封じ部深さD1、前記流出側端部における前記目封じ部の深さを流出側目封じ部深さD2とした場合に、D1>D2の関係であり、
前記流入側端部における前記充填材の気孔率を流入側目封じ部気孔率P1、前記流出側端部おける前記充填材の気孔率を流出側目封じ部気孔率P2とした場合に、P1<P2の関係であり、
前記目封じ部のヤング率が、前記流入側端部よりも前記流出側端部おいて低くなるように形成されたハニカム構造体。 - 前記流入側平均目封じ部断面積S1が0.2mm2<S1<1.0mm2の範囲であり、
前記流出側平均目封じ部断面積S2が0.4mm2<S2<1.4mm2の範囲であり、
前記流入側目封じ部深さD1が5mm<D1<15mmの範囲であり、
前記流出側目封じ部深さD2が2mm<D2<10mmの範囲であり、
前記流入側目封じ部気孔率P1が40%<P1<60%の範囲であり、
前記流出側目封じ部気孔率P2が50%<P2<80%の範囲である請求項1に記載のハニカム構造体。 - 前記流入側平均目封じ部断面積S1が0.3mm2<S1<0.7mm2の範囲であり、
前記流出側平均目封じ部断面積S2が0.6mm2<S2<1.3mm2の範囲であり、
前記流入側目封じ部深さD1が8mm<D1<12mmの範囲であり、
前記流出側目封じ部深さD2が3mm<D2<9mmの範囲であり、
前記流入側目封じ部気孔率P1が45%<P1<55%の範囲であり、
前記流出側目封じ部気孔率P2が55%<P2<75%の範囲である請求項1に記載のハニカム構造体。 - 一の前記隔壁を挟んだ両側の前記セルが互いに反対側の端部において目封じされており、
前記流入側端部において目封じされている前記セルの中心軸方向に対する垂直断面形状と、前記流出側端部において目封じされている前記セルの中心軸方向に対する垂直断面形状が異なる請求項1〜3の何れか1項に記載のハニカム構造体。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008088150A JP5456268B2 (ja) | 2008-03-28 | 2008-03-28 | ハニカム構造体 |
DE602009000269T DE602009000269D1 (de) | 2008-03-28 | 2009-03-24 | Wabenstruktur |
EP09250825A EP2108434B1 (en) | 2008-03-28 | 2009-03-24 | Honeycomb structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008088150A JP5456268B2 (ja) | 2008-03-28 | 2008-03-28 | ハニカム構造体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009240867A true JP2009240867A (ja) | 2009-10-22 |
JP5456268B2 JP5456268B2 (ja) | 2014-03-26 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2008088150A Active JP5456268B2 (ja) | 2008-03-28 | 2008-03-28 | ハニカム構造体 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2108434B1 (ja) |
JP (1) | JP5456268B2 (ja) |
DE (1) | DE602009000269D1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017170322A (ja) * | 2016-03-23 | 2017-09-28 | 日本碍子株式会社 | ハニカムフィルタ |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7127606B2 (ja) * | 2019-04-24 | 2022-08-30 | 株式会社デンソー | 排ガス浄化フィルタ |
Citations (10)
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JPS56124418A (en) * | 1979-12-03 | 1981-09-30 | Gen Motors Corp | Ceramic filter for particle in diesel exhaust |
JPH07332064A (ja) * | 1994-06-10 | 1995-12-19 | Ngk Insulators Ltd | 排ガスフィルタおよび排ガス処理装置 |
WO2004024293A1 (ja) * | 2002-09-13 | 2004-03-25 | Ibiden Co., Ltd. | ハニカム構造体 |
JP2004154692A (ja) * | 2002-11-07 | 2004-06-03 | Ngk Insulators Ltd | ハニカム構造体 |
JP2005125237A (ja) * | 2003-10-23 | 2005-05-19 | Ibiden Co Ltd | ハニカム構造体 |
JP2005211836A (ja) * | 2004-01-30 | 2005-08-11 | Ngk Insulators Ltd | ハニカム構造体及びその製造方法 |
WO2005089902A1 (ja) * | 2004-03-23 | 2005-09-29 | Ngk Insulators, Ltd. | セラミックフィルタ |
WO2006068256A1 (ja) * | 2004-12-22 | 2006-06-29 | Hitachi Metals, Ltd. | ハニカムフィルタの製造方法及びハニカムフィルタ |
JP2006334459A (ja) * | 2005-05-31 | 2006-12-14 | Hitachi Metals Ltd | セラミックハニカムフィルタ |
JP2007021483A (ja) * | 2005-06-14 | 2007-02-01 | Ngk Insulators Ltd | ハニカム構造体 |
Family Cites Families (8)
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CA1145270A (en) | 1979-12-03 | 1983-04-26 | Morris Berg | Ceramic filters for diesel exhaust particulates and methods of making |
GB2064360B (en) | 1979-12-03 | 1984-05-16 | Gen Motors Corp | Ceramic filters for diesel exhaust particulates and methods for making such filters |
FR2789327B1 (fr) | 1999-02-09 | 2001-04-20 | Ecia Equip Composants Ind Auto | Structure de filtration poreuse et dispositif de depollution la comportant |
DE10037403A1 (de) | 2000-08-01 | 2002-02-14 | Daimler Chrysler Ag | Partikelfilter |
JP4322542B2 (ja) * | 2003-04-21 | 2009-09-02 | 日本碍子株式会社 | ハニカム構造体、その製造方法及び成形用口金並びに排出流体浄化システム |
WO2004113252A1 (ja) * | 2003-06-23 | 2004-12-29 | Ibiden Co., Ltd. | ハニカム構造体 |
US20060280905A1 (en) * | 2005-06-14 | 2006-12-14 | Ngk Insulators, Ltd. | Honeycomb structure |
WO2008129691A1 (ja) * | 2007-03-30 | 2008-10-30 | Ibiden Co., Ltd. | ハニカムフィルタ |
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2008
- 2008-03-28 JP JP2008088150A patent/JP5456268B2/ja active Active
-
2009
- 2009-03-24 EP EP09250825A patent/EP2108434B1/en active Active
- 2009-03-24 DE DE602009000269T patent/DE602009000269D1/de active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS56124418A (en) * | 1979-12-03 | 1981-09-30 | Gen Motors Corp | Ceramic filter for particle in diesel exhaust |
JPH07332064A (ja) * | 1994-06-10 | 1995-12-19 | Ngk Insulators Ltd | 排ガスフィルタおよび排ガス処理装置 |
WO2004024293A1 (ja) * | 2002-09-13 | 2004-03-25 | Ibiden Co., Ltd. | ハニカム構造体 |
JP2004154692A (ja) * | 2002-11-07 | 2004-06-03 | Ngk Insulators Ltd | ハニカム構造体 |
JP2005125237A (ja) * | 2003-10-23 | 2005-05-19 | Ibiden Co Ltd | ハニカム構造体 |
JP2005211836A (ja) * | 2004-01-30 | 2005-08-11 | Ngk Insulators Ltd | ハニカム構造体及びその製造方法 |
WO2005089902A1 (ja) * | 2004-03-23 | 2005-09-29 | Ngk Insulators, Ltd. | セラミックフィルタ |
WO2006068256A1 (ja) * | 2004-12-22 | 2006-06-29 | Hitachi Metals, Ltd. | ハニカムフィルタの製造方法及びハニカムフィルタ |
JP2006334459A (ja) * | 2005-05-31 | 2006-12-14 | Hitachi Metals Ltd | セラミックハニカムフィルタ |
JP2007021483A (ja) * | 2005-06-14 | 2007-02-01 | Ngk Insulators Ltd | ハニカム構造体 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017170322A (ja) * | 2016-03-23 | 2017-09-28 | 日本碍子株式会社 | ハニカムフィルタ |
CN107227993A (zh) * | 2016-03-23 | 2017-10-03 | 日本碍子株式会社 | 蜂窝过滤器 |
US10525394B2 (en) | 2016-03-23 | 2020-01-07 | Ngk Insulators, Ltd. | Honeycomb filter |
CN107227993B (zh) * | 2016-03-23 | 2021-09-21 | 日本碍子株式会社 | 蜂窝过滤器 |
Also Published As
Publication number | Publication date |
---|---|
DE602009000269D1 (de) | 2010-11-25 |
EP2108434B1 (en) | 2010-10-13 |
EP2108434A1 (en) | 2009-10-14 |
JP5456268B2 (ja) | 2014-03-26 |
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