JPH0596422U - Metal catalytic converter - Google Patents
Metal catalytic converterInfo
- Publication number
- JPH0596422U JPH0596422U JP3493892U JP3493892U JPH0596422U JP H0596422 U JPH0596422 U JP H0596422U JP 3493892 U JP3493892 U JP 3493892U JP 3493892 U JP3493892 U JP 3493892U JP H0596422 U JPH0596422 U JP H0596422U
- Authority
- JP
- Japan
- Prior art keywords
- metal
- holding member
- honeycomb carrier
- shell
- metallic
- 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
Abstract
(57)【要約】
【目的】 本考案は、内燃機関の排気系、特に、自動車
の排気系に装着されるメタル触媒コンバータに関し、両
電極をシェルから絶縁させた状態で、金属製ハニカム担
体をシェルから絶縁して保持することを目的とする。
【構成】 金属製前部保持部材６と、金属製後部保持部
材７と、金属製ハニカム担体３の前端面３Ａに一側が当
接するとともに他側が金属製前部保持部材６に当接して
金属製前部保持部材６に環設された前側の環状セラミッ
ク可撓性細長体８と、金属製ハニカム担体３の後端面３
Ｂに一側が当接するとともに他側が金属製後部保持部材
７に当接して金属製前部保持部材６に環設された後側の
環状セラミック可撓性細長体８とを有している。
(57) [Summary] [PROBLEMS] The present invention relates to a metal catalytic converter mounted in an exhaust system of an internal combustion engine, particularly in an exhaust system of an automobile, and a metal honeycomb carrier with both electrodes insulated from a shell. It is intended to be held insulated from the shell. A metal front holding member 6, a metal rear holding member 7, and a metal honeycomb carrier 3 having a front end surface 3A contacting one side with the other side contacting the metal front holding member 6 with metal. A front side annular ceramic flexible elongated body 8 annularly provided on the front holding member 6 and a rear end surface 3 of the metallic honeycomb carrier 3
B has a rear annular ceramic flexible elongated body 8 which is abutted on one side and the other side abuts on the metallic rear side holding member 7 and is annularly provided on the metallic front side holding member 6.
Description
【０００１】[0001]
本考案は、内燃機関の排気系、特に、自動車の排気系に装着されるメタル触媒 コンバータに関し、詳しくは、メタル触媒コンバータに内蔵され電極を金属製ハ ニカム担体に取り付けてなる電熱触媒担体の保持手段に関する。 The present invention relates to a metal catalytic converter installed in an exhaust system of an internal combustion engine, particularly in an exhaust system of an automobile. More specifically, it holds an electrothermal catalyst carrier which is built in the metal catalytic converter and has electrodes attached to a metal honeycomb carrier. Regarding means.
【０００２】[0002]
内燃機関の排気系、例えば、自動車の排気系においては、エンジン運転開始時 にメタル触媒コンバータ内の触媒担体を急速に加熱して暖めることが要求される 。例えば、メタル触媒コンバータにおいては、電流を流して抵抗加熱する電熱触 媒担体がシェル内に収容され、この電熱触媒担体には、電流を流すための端子と して、一対の電極が必要となる。 In an exhaust system of an internal combustion engine, for example, an exhaust system of an automobile, it is required that the catalyst carrier in the metal catalytic converter be rapidly heated and warmed at the start of engine operation. For example, in a metal catalytic converter, an electrothermal catalyst carrier that carries an electric current and resistance heating is housed in a shell, and this electrothermal catalyst carrier requires a pair of electrodes as terminals for passing an electric current. ..
【０００３】 かかる一対の電極を金属製ハニカム担体に取り付けてなる電熱触媒担体を有す るメタル触媒コンバータが例えば特開平３−２４５８５１号公報に開示されてい る。A metal catalytic converter having an electrothermal catalyst carrier having such a pair of electrodes attached to a metal honeycomb carrier is disclosed in, for example, Japanese Patent Laid-Open No. 3-245851.
【０００４】 また、この種のメタル触媒コンバータとして図４に示すものが知られている。 図において、符号１０１は金属製のシェルで、このシェル１０１内に金属製ハ ニカム担体１０２が収容されている。金属製ハニカム担体１０２は、金属製の波 板と平板を積層して構成されている。Further, as this type of metal catalytic converter, the one shown in FIG. 4 is known. In the figure, reference numeral 101 is a metal shell, and a metal honeycomb carrier 102 is accommodated in the shell 101. The metal honeycomb carrier 102 is formed by laminating a metal corrugated plate and a flat plate.
【０００５】 金属製ハニカム担体１０２の外側面に一体に一方の電極１０３が設けられ、ま た、金属製ハニカム担体１０２の中心軸部が他方の棒状電極１０４を構成し、こ の棒状電極１０４の後端に金属製の保持部材１０５が一体に連結され、この保持 部１０５の端部１０５Ａが溶接でシェル１０１に固着されている。保持部材１０ ５の端部１０５Ａはシェル１０１外に突出し、この端部１０５Ａと一方の電極１ ０３が図示しない電極を介して接続されている。One electrode 103 is integrally provided on the outer side surface of the metal honeycomb carrier 102, and the central axis portion of the metal honeycomb carrier 102 constitutes the other rod-shaped electrode 104. A metal holding member 105 is integrally connected to the rear end, and an end portion 105A of the holding portion 105 is fixed to the shell 101 by welding. The end portion 105A of the holding member 105 projects outside the shell 101, and this end portion 105A is connected to one electrode 103 via an electrode (not shown).
【０００６】 一方の電極１０３はシェル１０１から絶縁されるとともにシェル１０１外に突 出して設けられている。 そして、シェル１０１の内壁面と金属製ハニカム担体１０２の外側面の間に、 セラミック製マット１０６が緩衝部材の機能を持たせて設けられている。One electrode 103 is provided so as to be insulated from the shell 101 and project outside the shell 101. Then, a ceramic mat 106 is provided between the inner wall surface of the shell 101 and the outer surface of the metal honeycomb carrier 102 so as to function as a cushioning member.
【０００７】 しかして、エンジン運転開始時に、電流の抵抗加熱により、金属製ハニカム担 体１０２が全体的に加熱され、急速に暖められる。At the start of engine operation, however, the metallic honeycomb carrier 102 is wholly heated and rapidly warmed by the resistance heating of the electric current.
【０００８】[0008]
本来、金属製ハニカム担体はシェルから絶縁した状態で保持することが望まし いが、適当な金属製保持部材をシェルに設けて保持すると、金属製ハニカム担体 とシェルとの絶縁機能が損なわれ、また、金属製ハニカム担体の周りを絶縁体で 囲んでシェルとの絶縁機能を優先すると、この絶縁体の保持が難しい。特に、こ の絶縁体の保持を前後方向で確保しようとすれば、シェル内に該シェルに一体に 金属製保持部材を取り付けて利用することになるが、絶縁体は破損し易く、その 実現は難しい。要するに、金属製ハニカム担体をシェルから絶縁して保持するこ とが難しい。 Originally, it is desirable to hold the metallic honeycomb carrier in a state of being insulated from the shell, but if an appropriate metallic holding member is provided and held in the shell, the insulating function between the metallic honeycomb carrier and the shell is impaired, Further, if the metal honeycomb carrier is surrounded by an insulator to prioritize the function of insulating the shell from the shell, it is difficult to retain the insulator. In particular, if it is attempted to secure the holding of this insulator in the front-rear direction, a metal holding member is integrally attached to the shell and used, but the insulator is easily damaged, and this is not realized. difficult. In short, it is difficult to keep the metallic honeycomb carrier insulated from the shell.
【０００９】 そして、従来のメタル触媒コンバータにあっては、金属製ハニカム担体１０２ の保持を確実にすることができるものの、棒状電極１０４に一体の金属製の保持 部材１０５がシェル１０１に溶接で固着して、シェル１０１を介してボディアー スしているが、その結果、棒状電極１０４側からシェル１０１に電流が流れ、安 全上及び制御面で好ましくない。In addition, in the conventional metal catalytic converter, although the metal honeycomb carrier 102 can be reliably held, the metal holding member 105 integrated with the rod-shaped electrode 104 is fixed to the shell 101 by welding. Then, the body is grounded via the shell 101, but as a result, a current flows from the rod-shaped electrode 104 side to the shell 101, which is not preferable in terms of safety and control.
【００１０】 即ち、電極１０３とシェル１０１との絶縁が、万一破壊すると、直ちに短絡す る危険がある。また、最近の自動車では、種々の電子機器が搭載されていて、ボ ディアースされているが、電熱触媒のような大容量の電力を消費する装置を、こ れらと共通のボディアースすると、通電時に電気回路の電圧が不安定になり、種 々の電子機器を誤作動する虞がある。That is, if the insulation between the electrode 103 and the shell 101 is broken, there is a risk of short-circuiting immediately. Also, in recent automobiles, various electronic devices are mounted and are body-grounded, but if a device that consumes a large amount of electric power, such as an electrothermal catalyst, is grounded in common with these devices, it will turn on electricity. At times, the voltage of the electric circuit becomes unstable, which may cause various electronic devices to malfunction.
【００１１】 本考案は、上述の問題点を解決するためになされたもので、その目的は、シェ ル自体を一方の電極とすることなく、両電極をシェルから絶縁させた状態で、金 属製ハニカム担体をシェルから絶縁して保持することができるメタル触媒コンバ ータを提供することである。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to use a metal in a state where both electrodes are insulated from a shell without using the shell itself as one electrode. It is an object of the present invention to provide a metal catalyst converter capable of insulating and holding a honeycomb carrier made of metal.
【００１２】[0012]
本考案は、シェル内に金属製ハニカム担体を収容してなるメタル触媒コンバー タにおいて、金属製ハニカム担体の外側面に設けられシェルから絶縁されるとと もにシェル外に突出して設けられた一対の電極と、シェルに、金属製ハニカム担 体の前端面と所定の隙間を介して設けられた金属製前部保持部材と、シェルに、 金属製ハニカム担体の後端面と所定の隙間を介して設けられた金属製後部保持部 材と、金属製ハニカム担体の前端面に一側が当接するとともに他側が金属製前部 保持部材に当接して金属製前部保持部材に環設され、布状セラミックチューブ内 にセラミック製マットを内蔵してなる前側の環状セラミック可撓性細長体と、金 属製ハニカム担体の後端面に一側が当接するとともに他側が金属製後部保持部材 に当接して金属製前部保持部材に環設され、布状セラミックチューブ内にセラミ ック製マットを内蔵してなる後側の環状セラミック可撓性細長体とを備えたこと を特徴とする。 The present invention relates to a metal catalyst converter in which a metallic honeycomb carrier is housed in a shell, which is provided on the outer surface of the metallic honeycomb carrier so as to be insulated from the shell and to protrude outside the shell. Of the metal, the metal front support member provided on the shell with a predetermined gap from the front end face of the metal honeycomb carrier, and the shell with a predetermined gap from the rear end face of the metal honeycomb carrier on the shell. The metal rear holding member provided and one side of the front end surface of the metal honeycomb carrier are in contact with each other and the other side is in contact with the metal front holding member, and is looped around the metal front holding member to form a cloth-like ceramic. The annular ceramic flexible elongated body on the front side, in which the ceramic mat is built in the tube, and one side abuts on the rear end surface of the metallic honeycomb carrier, and the other side abuts on the metallic rear holding member and the metal Is ring set to the front holding member, characterized by comprising an annular ceramic flexible elongate member on the rear side comprising a built-in Ceramic mat in cloth-like ceramic tube.
【００１３】[0013]
本考案においては、金属製ハニカム担体の前端面は、前側の環状セラミック可 撓性細長体を介して金属製前部保持部材により、その変位が防止され、同時に、 金属製前部保持部材に対しては環状セラミック可撓性細長体を介して絶縁されて いる。 In the present invention, the front end face of the metallic honeycomb carrier is prevented from being displaced by the metallic front holding member via the annular ceramic flexible elongated body on the front side, and at the same time, with respect to the metallic front holding member. Insulation is provided via a ring-shaped ceramic flexible strip.
【００１４】 また、金属製ハニカム担体の後端面は、後側の環状セラミック可撓性細長体を 介して金属製後部保持部材により、その変位が防止され、同時に、金属製後部保 持部材に対しては環状セラミック可撓性細長体を介して絶縁されている。Further, the rear end surface of the metallic honeycomb carrier is prevented from being displaced by the metallic rear holding member via the annular ceramic flexible elongated body on the rear side, and at the same time, the rear end surface of the metallic honeycomb holding member is prevented. Are insulated via a ring-shaped ceramic flexible strip.
【００１５】[0015]
以下、図面により本考案の実施例について説明する。 図１ないし図３は、本考案の実施例に係わり、自動車の排気系に装着されるメ タル触媒コンバータを示す。 An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show a metal catalytic converter mounted in an exhaust system of an automobile according to an embodiment of the present invention.
【００１６】 図において、符号１はメタル触媒コンバータを示し、このメタル触媒コンバー タ１は、金属製のシェル２を有し、シェル２の中央部分内に金属製ハニカム担体 ３が収容されている。金属製ハニカム担体３は金属製の波板と平板を積層して構 成される一枚の帯板体を蛇行状に多段に折り畳んでなり、この金属製ハニカム担 体３の層間に、セラミック繊維布等からなる絶縁部材がそれぞれ層状に配置され ている。金属製ハニカム担体３の外側面に一体に一対の電極４，４が設けられ、 これらは反対側の位置にあり、絶縁カラー４Ａを介してシェル２から絶縁される とともにシェル２から突出して設けられている。一対の電極４，４は図示しない 電源を介して接続されている。In the figure, reference numeral 1 indicates a metal catalyst converter, and this metal catalyst converter 1 has a shell 2 made of metal, and a honeycomb carrier 3 made of metal is housed in the central portion of the shell 2. The metal honeycomb carrier 3 is formed by stacking a metal corrugated plate and a flat plate and folding a single strip plate body in a multi-step manner in a meandering manner. Ceramic fibers are provided between layers of the metal honeycomb carrier 3. Insulating members made of cloth or the like are arranged in layers. A pair of electrodes 4 and 4 are integrally provided on the outer side surface of the metal honeycomb carrier 3, and these electrodes 4 and 4 are located on the opposite side, are insulated from the shell 2 via the insulating collar 4A, and project from the shell 2. ing. The pair of electrodes 4 and 4 are connected via a power source (not shown).
【００１７】 シェル２の内壁面２Ａと金属製ハニカム担体３の外側面の間に、緩衝部材とし ても機能する円筒状のセラミック製マット５が設けられている。 そして、符号６は金属製前部保持部材を示し、この金属製前部保持部材６は、 大径部６Ａと小径部６Ｂからなる環状板状体に構成され、シェル２の前側部分に 金属製前部保持部材６の大径部６Ａが栓溶接で固着され、金属製前部保持部材６ の小径部６Ｂの端面と金属製ハニカム担体３の前端面３Ａとの間に、所定の隙間 Ｃ１が形成されている。Between the inner wall surface 2 A of the shell 2 and the outer surface of the metallic honeycomb carrier 3, a cylindrical ceramic mat 5 that also functions as a cushioning member is provided. Further, reference numeral 6 indicates a metal front holding member, and the metal front holding member 6 is configured as an annular plate-shaped body composed of a large diameter portion 6A and a small diameter portion 6B, and a metal front holding member 6 is formed on the front side portion of the shell 2. The large diameter portion 6A of the front holding member 6 is fixed by plug welding, and a predetermined gap C1 is formed between the end surface of the small diameter portion 6B of the metal front holding member 6 and the front end surface 3A of the metal honeycomb carrier 3. Has been formed.
【００１８】 また、符号７は金属製後部保持部材を示し、この金属製後部保持部材７は、大 径部７Ａと小径部７Ｂからなる環状板状体に構成され、シェル２の後側部分に金 属製後部保持部材７の大径部７Ａが栓溶接で固着され、金属製後部保持部材７の 小径部７Ｂの端面と金属製ハニカム担体３の後端面３Ｂとの間に、所定の隙間Ｃ ２が形成されている。Further, reference numeral 7 denotes a metal rear holding member, and this metal rear holding member 7 is configured as an annular plate-like body composed of a large diameter portion 7A and a small diameter portion 7B, and is provided on the rear side portion of the shell 2. The large diameter portion 7A of the metal rear holding member 7 is fixed by plug welding, and a predetermined gap C is formed between the end surface of the small diameter portion 7B of the metal rear holding member 7 and the rear end surface 3B of the metal honeycomb carrier 3. 2 is formed.
【００１９】 符号８は環状セラミック可撓性細長体を示し、この環状セラミック可撓性細長 体８は、布状セラミックチューブ８Ａ内にセラミック製マット８Ｂを内蔵してな る。布状セラミックチューブ８Ａは、アルミナ（Ａｌ2 Ｏ3 ），シリカ（ＳｉＯ 2 ）を主成分としたファイバーを、チューブ状織布としたもので、１２００℃と いう高温での連続使用に充分耐え得るものである。セラミック製マット８Ｂは、 加熱膨張材，アルミナ・シリカ系無機繊維からなるセラミック・ファイバ等を材 料とし、所定の温度以上に加熱されると膨張し、緩衝材としての性質，排気ガス のバイパスを遮断するガスシール材としての性質，断熱材としての性質を有して いる。Reference numeral 8 denotes a ring-shaped ceramic flexible elongated body, and this ring-shaped ceramic flexible elongated body 8 has a cloth mat ceramic tube 8 A and a ceramic mat 8 B built therein. The cloth-like ceramic tube 8A is made of alumina (Al2O3), Silica (SiO 2 It is a tube-shaped woven fabric made of (1) as a main component, which can withstand continuous use at a high temperature of 1200 ° C. The ceramic mat 8B is made of a heat-expandable material, a ceramic fiber made of alumina / silica-based inorganic fiber, etc., and expands when heated to a temperature higher than a predetermined temperature. It has the properties of a gas seal that shuts off and the properties of a heat insulator.
【００２０】 シェル２の前側に位置して環状セラミック可撓性細長体８が金属製前部保持部 材６の小径部６Ｂの外周に環設され、この前側の環状セラミック可撓性細長体８ は金属製ハニカム担体３の前端面３Ａに一側が当接するとともに他側が金属製前 部保持部材６に当接している。また、シェル２の後側に位置して環状セラミック 可撓性細長体８が、金属製後部保持部材７の小径部７Ｂの外周に環設され、この 後側の環状セラミック可撓性細長体８は金属製ハニカム担体３の後端面３Ｂに一 側が当接するとともに他側が金属製後部保持部材７に当接している。An annular ceramic flexible elongated body 8 located on the front side of the shell 2 is provided around the outer periphery of the small-diameter portion 6B of the metal front holding member 6, and the annular ceramic flexible elongated body 8 on the front side thereof is provided. Has one side in contact with the front end surface 3A of the metallic honeycomb carrier 3 and the other side in contact with the metallic front holding member 6. Further, an annular ceramic flexible elongated body 8 located on the rear side of the shell 2 is provided around the outer periphery of the small diameter portion 7B of the metal rear holding member 7, and the rear side annular ceramic flexible elongated body 8 is provided. Has one side abutting on the rear end surface 3B of the metallic honeycomb carrier 3 and the other side abutting on the metallic rear holding member 7.
【００２１】 そして、エンジン運転開始時に、電流は、両電極４，４間で、折れ畳んだ金属 製ハニカム担体３をその長手方向に沿って蛇行状に流れる。この電流の抵抗加熱 により、金属製ハニカム担体３が全体的に加熱され、急速に暖められ、活性化さ れる。At the start of engine operation, a current flows in a zigzag manner along the longitudinal direction of the folded metallic honeycomb carrier 3 between the electrodes 4 and 4. By the resistance heating of this electric current, the metallic honeycomb carrier 3 is wholly heated and rapidly heated and activated.
【００２２】 しかして、本実施例においては、金属製ハニカム担体３の前端面３Ａは、前側 の環状セラミック可撓性細長体８を介して金属製前部保持部材６により、その変 位が防止され、同時に、金属製前部保持部材６に対しては前側の環状セラミック 可撓性細長体８を介して絶縁されている。Therefore, in the present embodiment, the front end surface 3 A of the metallic honeycomb carrier 3 is prevented from being displaced by the metallic front holding member 6 via the annular ceramic flexible elongated body 8 on the front side. At the same time, the front holding member 6 made of metal is insulated by the annular ceramic flexible elongated body 8 on the front side.
【００２３】 また、金属製ハニカム担体３の後端面３Ｂは、後側の環状セラミック可撓性細 長体８を介して金属製後部保持部材７により、その変位が防止され、同時に、金 属製後部保持部材７に対しては後側の環状セラミック可撓性細長体８を介して絶 縁されている。Further, the rear end surface 3B of the metallic honeycomb carrier 3 is prevented from being displaced by the metallic rear holding member 7 via the annular ceramic flexible elongated body 8 on the rear side, and at the same time, is made of the metallic material. The rear holding member 7 is insulated from the rear holding member 7 by a rear side annular ceramic flexible elongated body 8.
【００２４】 即ち、金属製ハニカム担体３の前端面３Ａ及び後端面３Ｂは、両環状セラミッ ク可撓性細長体８，８を介して金属製前部保持部材６，金属製後部保持部材７に 挟持された状態で保持されており、同時に、金属製前部保持部材６及び金属製後 部保持部材７に対しては両環状セラミック可撓性細長体８，８を介して絶縁され ている。That is, the front end surface 3 A and the rear end surface 3 B of the metallic honeycomb carrier 3 are connected to the metallic front holding member 6 and the metallic rear holding member 7 via both annular ceramic flexible elongated bodies 8, 8. It is held in a sandwiched state, and at the same time, it is insulated from the metal front holding member 6 and the metal rear holding member 7 via both annular ceramic flexible elongated bodies 8, 8.
【００２５】 また、金属製ハニカム担体３の外側面は、セラミック製マット５を介してシェ ル２内に保持されているが、シェル２に対してはセラミック製マット５を介して シェル２と絶縁されている。The outer surface of the metal honeycomb carrier 3 is held in the shell 2 via the ceramic mat 5, but the shell 2 is insulated from the shell 2 via the ceramic mat 5. Has been done.
【００２６】 以上の如き構成によれば、シェル２内における金属製前部保持部材６及び金属 製後部保持部材７の各小径部６Ｂ，７Ｂの外周に環設した両環状セラミック可撓 性細長体８，８が、金属製ハニカム担体３の保持機能とともに金属製ハニカム担 体３との絶縁機能を有しているので、シェル２と金属製ハニカム担体３との絶縁 を確保しつつ、金属製ハニカム担体３の保持を確実に行なうことができる。According to the above-mentioned configuration, both annular ceramic flexible elongated members are provided around the small diameter portions 6B, 7B of the metal front holding member 6 and the metal rear holding member 7 in the shell 2 in an annular manner. Since 8 and 8 have the function of holding the metallic honeycomb carrier 3 and the function of insulating the metallic honeycomb carrier 3 from each other, the metallic honeycomb carrier 3 can be secured while ensuring the insulation between the shell 2 and the metallic honeycomb carrier 3. The carrier 3 can be held reliably.
【００２７】 また、排気ガスの温度変化に応じて金属製ハニカム担体３が熱膨張・熱収縮す るが、この金属製ハニカム担体３の熱変形に応じて、両環状セラミック可撓性細 長体８，８が変形するので、金属製ハニカム担体３の熱変形を吸収することがで きる。Further, the metal honeycomb carrier 3 thermally expands and contracts in accordance with the temperature change of the exhaust gas, but the thermal deformation of the metal honeycomb carrier 3 causes the both annular ceramic flexible elongated bodies. Since 8 and 8 are deformed, thermal deformation of the metallic honeycomb carrier 3 can be absorbed.
【００２８】 なお、本実施例においては、自動車の排気系に装着されれたメタル触媒コンバ ータについて説明したが、これに限定されることなく、自動車の排気系以外の内 燃機関の排気系にも適用される。Although the metal catalyst converter mounted in the exhaust system of the automobile has been described in the present embodiment, the exhaust system of the internal combustion engine other than the exhaust system of the automobile is not limited to this. Also applies to
【００２９】[0029]
以上説明したように本考案によれば、シェル内における金属製前部保持部材及 び金属製後部保持部材に環設した両環状セラミック可撓性細長体が、金属製ハニ カム担体の保持機能とともに金属製ハニカム担体との絶縁機能を有しているので 、シェルと金属製ハニカム担体との絶縁を確保しつつ、金属製ハニカム担体の保 持を確実に行なうことができる効果を奏する。 As described above, according to the present invention, both annular ceramic flexible elongated members that are annularly attached to the metal front holding member and the metal rear holding member in the shell have the function of holding the metal honeycomb carrier. Since it has an insulating function from the metal honeycomb carrier, it is possible to reliably hold the metal honeycomb carrier while ensuring the insulation between the shell and the metal honeycomb carrier.
【図１】本考案の実施例に係わるメタル触媒コンバータ
の縦断面図である。FIG. 1 is a vertical cross-sectional view of a metal catalytic converter according to an embodiment of the present invention.
【図２】図１の環状セラミック可撓性細長体の構成を示
す斜視図である。2 is a perspective view showing the configuration of the annular ceramic flexible elongated body of FIG. 1. FIG.
【図３】図１の環状セラミック可撓性細長体を示す横断
面図である。3 is a cross-sectional view of the annular ceramic flexible elongated body of FIG.
【図４】従来におけるメタル触媒コンバータの縦断面図
である。FIG. 4 is a vertical cross-sectional view of a conventional metal catalytic converter.
１ メタル触媒コンバータ ２ シェル ３ 金属製ハニカム担体 ３Ａ 前端面 ３Ｂ 後端面 ４ 電極 ６ 金属製前部保持部材 ７ 金属製後部保持部材 ８ 環状セラミック可撓性細長体 Ｃ１ 隙間 Ｃ２ 隙間 1 Metal Catalytic Converter 2 Shell 3 Metal Honeycomb Carrier 3A Front End Surface 3B Rear End Surface 4 Electrode 6 Metal Front Holding Member 7 Metal Back Holding Member 8 Annular Ceramic Flexible Slender C1 Gap C2 Gap
Claims (1)
（３）を収容してなるメタル触媒コンバータにおいて、 金属製ハニカム担体（３）の外側面に設けられシェル
（２）から絶縁されるとともにシェル（２）外に突出し
て設けられた一対の電極（４，４）と、 シェル（２）に、金属製ハニカム担体（３）の前端面
（３Ａ）と所定の隙間（Ｃ１）を介して設けられた金属
製前部保持部材（６）と、 シェル（２）に、金属製ハニカム担体（３）の後端面
（３Ｂ）と所定の隙間（Ｃ２）を介して設けられた金属
製後部保持部材（７）と、 金属製ハニカム担体（３）の前端面（３Ａ）に一側が当
接するとともに他側が金属製前部保持部材（６）に当接
して金属製前部保持部材（６）に環設され、布状セラミ
ックチューブ（８Ａ）内にセラミック製マット（８Ｂ）
を内蔵してなる前側の環状セラミック可撓性細長体
（８）と、 金属製ハニカム担体（３）の後端面（３Ｂ）に一側が当
接するとともに他側が金属製後部保持部材（７）に当接
して金属製前部保持部材（６）に環設され、布状セラミ
ックチューブ（８Ａ）内にセラミック製マット（８Ｂ）
を内蔵してなる後側の環状セラミック可撓性細長体
（８）とを備えたことを特徴とするメタル触媒コンバー
タ。1. A metal catalytic converter comprising a metallic honeycomb carrier (3) housed in a shell (2), which is provided on an outer surface of the metallic honeycomb carrier (3) and insulated from the shell (2). A pair of electrodes (4, 4) provided so as to project outside the shell (2), and a predetermined gap (C1) between the shell (2) and the front end face (3A) of the metallic honeycomb carrier (3). A metal front holding member (6) provided and a metal back holding provided on the shell (2) with a predetermined gap (C2) from the rear end face (3B) of the metal honeycomb carrier (3) One side of the member (7) abuts on the front end face (3A) of the metallic honeycomb carrier (3), and the other side abuts on the metallic front holding member (6) to form the metallic front holding member (6). A ceramic matrix is installed inside the cloth-like ceramic tube (8A). Doo (8B)
The annular ceramic flexible slender body (8) on the front side, which has a built-in structure, and one side contact the rear end surface (3B) of the metallic honeycomb carrier (3), and the other side contacts the metallic rear holding member (7). The mat-shaped ceramic tube (8B) is placed in contact with the metal-shaped front holding member (6) in a ring shape and inside the cloth-shaped ceramic tube (8A).
And a rear annular ceramic flexible elongated body (8) in which a metal catalytic converter is incorporated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3493892U JPH0596422U (en) | 1992-05-26 | 1992-05-26 | Metal catalytic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3493892U JPH0596422U (en) | 1992-05-26 | 1992-05-26 | Metal catalytic converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0596422U true JPH0596422U (en) | 1993-12-27 |
Family
ID=12428131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3493892U Pending JPH0596422U (en) | 1992-05-26 | 1992-05-26 | Metal catalytic converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0596422U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012025982A1 (en) * | 2010-08-23 | 2012-03-01 | トヨタ自動車株式会社 | Electric heating catalyst |
| JP2012193726A (en) * | 2011-03-18 | 2012-10-11 | Toyota Motor Corp | Catalyst converter device |
| JP5093367B2 (en) * | 2010-04-14 | 2012-12-12 | トヨタ自動車株式会社 | Electrically heated catalyst and method for producing the same |
| CN103079702A (en) * | 2010-09-09 | 2013-05-01 | 丰田自动车株式会社 | Electrically heated catalyst |
-
1992
- 1992-05-26 JP JP3493892U patent/JPH0596422U/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5093367B2 (en) * | 2010-04-14 | 2012-12-12 | トヨタ自動車株式会社 | Electrically heated catalyst and method for producing the same |
| WO2012025982A1 (en) * | 2010-08-23 | 2012-03-01 | トヨタ自動車株式会社 | Electric heating catalyst |
| CN103079679A (en) * | 2010-08-23 | 2013-05-01 | 丰田自动车株式会社 | Electric heating catalyst |
| JP5263456B2 (en) * | 2010-08-23 | 2013-08-14 | トヨタ自動車株式会社 | Electric heating catalyst |
| DE112010005820B4 (en) | 2010-08-23 | 2022-06-23 | Toyota Jidosha Kabushiki Kaisha | Electrically heated catalyst |
| CN103079702A (en) * | 2010-09-09 | 2013-05-01 | 丰田自动车株式会社 | Electrically heated catalyst |
| JP2012193726A (en) * | 2011-03-18 | 2012-10-11 | Toyota Motor Corp | Catalyst converter device |
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