JPH01121505A - Supporting structure for ceramic honeycomb - Google Patents
Supporting structure for ceramic honeycombInfo
- Publication number
- JPH01121505A JPH01121505A JP27911787A JP27911787A JPH01121505A JP H01121505 A JPH01121505 A JP H01121505A JP 27911787 A JP27911787 A JP 27911787A JP 27911787 A JP27911787 A JP 27911787A JP H01121505 A JPH01121505 A JP H01121505A
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb
- ceramic honeycomb
- metal ring
- ceramic
- supporting shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 20
- 230000006378 damage Effects 0.000 abstract description 3
- 241000264877 Hippospongia communis Species 0.000 description 25
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241000243142 Porifera Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2875—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration by using elastic means, e.g. spring leaves, for retaining catalyst body in the housing
-
- 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
- F01N2330/06—Ceramic, e.g. monoliths
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） この発明は、セラミックハニカムの支持構造に関する。[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a support structure for a ceramic honeycomb.
（従来の技術）
第４図は従来の自動車用ｌこ排出ガス浄化周接触媒担体
などして、用いられているセラミックハニカムを高温で
使用する場合の周辺支持構造を示す図である。すなわち
、周囲の金属環３などとセラミックハニカムｌは一般に
線膨張率が大きく異なるため、両者の間には膨張差を吸
収する柔構造のワイヤメツシーやスポンジセラミックス
などの緩衝支持層２が配され、セラミックハニカムは金
属環より支持されている。(Prior Art) FIG. 4 is a diagram showing a peripheral support structure when a ceramic honeycomb, which is used as a conventional exhaust gas purification peripheral catalyst carrier for automobiles, is used at high temperatures. In other words, since the linear expansion coefficients of the surrounding metal ring 3 and the ceramic honeycomb l generally differ greatly, a buffer support layer 2 of flexible structure such as wire mesh or sponge ceramics is placed between them to absorb the expansion difference. The honeycomb is supported by metal rings.
（発明が解決しようとする問題点）
このような従来のセラミックハニカムの支持構造におい
ては、セラミックハニカム材であるたとえばコープイラ
イトなどは極端な脆性材であり、局所応力の破壊に対す
る感度が高いこと、及び金属環、セラミックハニカム等
の製作精度には制限があり、均一に拘束支持することは
むずかしいこと等より、セラミックハニカムは停止時・
動作時の温度変化等によって破壊する可能性がある。(Problems to be Solved by the Invention) In such a conventional ceramic honeycomb support structure, ceramic honeycomb materials such as copillite are extremely brittle materials and have high sensitivity to fracture due to local stress; There are limits to the manufacturing precision of metal rings, ceramic honeycombs, etc., and it is difficult to uniformly restrain and support ceramic honeycombs.
There is a possibility of destruction due to temperature changes during operation.
本発明は上部問題点を解決するためｆこなされたもので
、停止時、動作時及び裏作精度等によらず常に安定なセ
ラミックハニカムの支持構造を提供することを目的とす
る。The present invention has been developed to solve the above problem, and an object of the present invention is to provide a support structure for a ceramic honeycomb that is always stable regardless of whether it is stopped, in operation, or depending on the accuracy of back production.
（問題点を解決するための手段）
本発明はセラミックハニカムｆこ接触して、かつその外
周ｌこ設けられた金属環とスライド可能な支持軸を有し
、この支持軸を金属環外側ｌこおいてバネ機構を介して
、固定部ｌこ連結される支持構造によって、停止時、動
作時の温度変化及び製作精度等によらず、常に安定した
セラミックハニカムが達成し得る。(Means for Solving the Problems) The present invention has a supporting shaft that is in contact with a ceramic honeycomb and is slidable with a metal ring provided on the outer periphery of the ceramic honeycomb. By means of a support structure in which the fixed portions are connected via a spring mechanism, a stable ceramic honeycomb can be achieved at all times regardless of temperature changes during stoppage or operation, manufacturing precision, etc.
（作用）
本発明によれば、セラミックハニカムに接触して、かつ
その外周に設けられた金属環とスライド可能な支持軸を
任意数設けることにより、セラミックハニカムの周方向
任意の位置で支持することが可能となり、高強度方向か
らのみ支持することができ得る。一方、上記支持軸は、
金属環外側ｌこおいてバネ機構を介して固定部Ｉこ連結
さｎており、停止時Φ動作時の温度変化に対するセラミ
ックハニカムと金属環との膨張差に対しても、バネ機構
の作用によって追従が可能となる。ここで、バネ機構は
低温域である金属環外に設置することによって、金属の
クリープ現象域以下の温度とすることが容易であり、安
定な動作が達成され得る。(Function) According to the present invention, the ceramic honeycomb can be supported at any position in the circumferential direction by providing an arbitrary number of support shafts that are in contact with the ceramic honeycomb and are slidable with the metal ring provided on the outer periphery of the ceramic honeycomb. This makes it possible to support only from the direction of high strength. On the other hand, the above support shaft is
The fixed part I is connected to the outer side of the metal ring via a spring mechanism, and the action of the spring mechanism also compensates for the difference in expansion between the ceramic honeycomb and the metal ring due to temperature changes during operation when stopped. Tracking becomes possible. Here, by installing the spring mechanism outside the metal ring, which is in a low-temperature region, it is easy to keep the temperature below the creep phenomenon region of the metal, and stable operation can be achieved.
（実施例） 以下図面を参照してこの発明を詳１ｆａｌこ説明する。(Example) The present invention will be described in detail below with reference to the drawings.
第１図は本発明の実施例であるセラミックハニカムの支
持構造を示す断面図である。セラミックハニカム１は、
図面の表裏方向に貫通する断面正方形の貫通路を複数連
設して構成されている。この貫通路に排ガス等の高温ガ
スを流通させ、通路の壁となるセラミックと反応して排
ガス処理が行なわれるのである。この高温雰囲気中で使
用さ右、るセラミックハニカム１の外周には任意Ｅこ支
持軸４が一端をセラミック１に接触して設けられている
。FIG. 1 is a sectional view showing a support structure for a ceramic honeycomb according to an embodiment of the present invention. Ceramic honeycomb 1 is
It is constructed by arranging a plurality of through passages each having a square cross section and penetrating in the front and back directions of the drawings. High-temperature gas such as exhaust gas is passed through this through passage, and reacts with the ceramic that forms the walls of the passage, thereby processing the exhaust gas. An optional support shaft 4 is provided on the outer periphery of the ceramic honeycomb 1 used in this high-temperature atmosphere, with one end in contact with the ceramic 1.
この支持軸４は、セラミック１の外周ｆこ設けた環状の
金属環３を貫通しかつ軸方向にスライド可能ｌこ構成さ
れている。低温域である金属環３の外周部に突出した支
持軸４の他端はバネ機構５を介して金属環３（こ設けた
固定具６へ押圧するようｆこ構成されている。The support shaft 4 is configured to pass through an annular metal ring 3 provided around the outer periphery of the ceramic 1 and to be slidable in the axial direction. The other end of the support shaft 4 protruding from the outer periphery of the metal ring 3, which is in a low temperature range, is configured to be pressed against the metal ring 3 (a fixture 6 provided thereon) via a spring mechanism 5.
第２図および第３図は本発明の他の実施例を示したもの
で、支持固定部のみを表わしている。第２図で示す実施
例は第１図で示した実施例のバネ機構５の代りｆこベロ
ーズ状の要素７を用い、固定具とバネ機構を兼ねたもの
であり、第３図はバネ機！！ｓ５および固定具６の代り
として板状バネ要素８を用いて板バネの一端で支持軸４
の一端を固定し、しかもパネカで支持軸４をセラミ、り
１側ｆこ押圧しているものである。FIGS. 2 and 3 show other embodiments of the present invention, showing only the supporting and fixing parts. The embodiment shown in FIG. 2 uses a bellows-like element 7 instead of the spring mechanism 5 of the embodiment shown in FIG. 1, and serves as both a fixture and a spring mechanism. ! ! s5 and the support shaft 4 at one end of the plate spring using a plate spring element 8 instead of the fixture 6.
One end of the support shaft 4 is fixed, and the support shaft 4 is pressed against the ceramic plate 1 by a panel.
本発明によれば、セラミックハニカム、金属環の製作精
度及び停止時・動作時の温度変化ｆこよる膨張差等に基
因する悪影響は、支持部にスライド機能とバネ機構を採
用することｌこより解消される。According to the present invention, the adverse effects caused by the manufacturing precision of ceramic honeycombs and metal rings and differences in expansion due to temperature changes during stoppage and operation are eliminated by adopting a slide function and a spring mechanism in the support section. be done.
ここで、バネ機構は材料的ｌこクリープ現象以下の温度
域に据えつけられており、安定な性能が得られる。一方
、支持軸はセラミックハニカムの任意の方向から支持す
ることが可能であり、強度強さｆｃ方向性を有するセラ
ミックハニカムでは、高強度方向から支持することがで
きる。従って、セラミックハニカムの安定な支持構造が
達成される。Here, the spring mechanism is installed in a temperature range below the material creep phenomenon, and stable performance can be obtained. On the other hand, the support shaft can support the ceramic honeycomb from any direction, and in the case of a ceramic honeycomb having strength fc directionality, it can be supported from the high strength direction. Therefore, a stable support structure for the ceramic honeycomb is achieved.
他の実施例を示す部分断面図、第４図は従来のセラミッ
クハニカムの支持構造を示す断面図である。
ｌ・・・セラミックハニカム、２・・・緩衝支持層、３
・・・金属環、４・・・支持軸、５・・・バネ機構、６
・・・固定具、７・・・ベローズ状バネ要素、８・・・
板状バネ要素。FIG. 4 is a partial sectional view showing another embodiment, and FIG. 4 is a sectional view showing a conventional ceramic honeycomb support structure. l... Ceramic honeycomb, 2... Buffer support layer, 3
... Metal ring, 4... Support shaft, 5... Spring mechanism, 6
...Fixing device, 7...Bellow-like spring element, 8...
Leaf spring element.
Claims (1)
持構造において、一端が前記セラミックハニカムに接触
して、かつ他端が前記セラミックハニカムの外周に設け
られた金属環とスライド可能に構成した支持軸と、この
支持軸を前記金属環外側の低温域に突出させ、かつこの
支持軸の突出部をバネ機構を介して前記セラミックハニ
カム方向に押圧固定する固定部とを具備したことを特徴
とするセラミックハニカムの支持構造。In a support structure for a ceramic honeycomb used in a high-temperature atmosphere, a support shaft configured to have one end in contact with the ceramic honeycomb and the other end slidable with a metal ring provided on the outer periphery of the ceramic honeycomb; A ceramic honeycomb characterized in that the support shaft projects into a low temperature region outside the metal ring, and a fixing portion presses and fixes the protrusion of the support shaft in the direction of the ceramic honeycomb via a spring mechanism. Support structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27911787A JPH01121505A (en) | 1987-11-06 | 1987-11-06 | Supporting structure for ceramic honeycomb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27911787A JPH01121505A (en) | 1987-11-06 | 1987-11-06 | Supporting structure for ceramic honeycomb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01121505A true JPH01121505A (en) | 1989-05-15 |
Family
ID=17606660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27911787A Pending JPH01121505A (en) | 1987-11-06 | 1987-11-06 | Supporting structure for ceramic honeycomb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01121505A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5410489A (en) * | 1991-07-05 | 1995-04-25 | Fanuc Ltd. | Method of specifying position to create fillet curved surface |
| WO1999056064A1 (en) * | 1998-04-30 | 1999-11-04 | Catalytica Combustion Systems, Inc. | Support structures for a catalyst |
| US8180355B2 (en) | 2006-09-29 | 2012-05-15 | Fujitsu Limited | Base station device and cell forming method |
| JP2014079280A (en) * | 2012-10-12 | 2014-05-08 | Zojirushi Corp | Blower, and control method thereof |
-
1987
- 1987-11-06 JP JP27911787A patent/JPH01121505A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5410489A (en) * | 1991-07-05 | 1995-04-25 | Fanuc Ltd. | Method of specifying position to create fillet curved surface |
| WO1999056064A1 (en) * | 1998-04-30 | 1999-11-04 | Catalytica Combustion Systems, Inc. | Support structures for a catalyst |
| US8180355B2 (en) | 2006-09-29 | 2012-05-15 | Fujitsu Limited | Base station device and cell forming method |
| JP2014079280A (en) * | 2012-10-12 | 2014-05-08 | Zojirushi Corp | Blower, and control method thereof |
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