JP3136792U - Catalyst core plate fixing device - Google Patents

Catalyst core plate fixing device Download PDF

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Publication number
JP3136792U
JP3136792U JP2007005814U JP2007005814U JP3136792U JP 3136792 U JP3136792 U JP 3136792U JP 2007005814 U JP2007005814 U JP 2007005814U JP 2007005814 U JP2007005814 U JP 2007005814U JP 3136792 U JP3136792 U JP 3136792U
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cylinder
catalyst
core plate
exhaust side
waste gas
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張文信
卓毓▲げん▼
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信通交通器材股▲ふん▼有限公司
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    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/083—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow
    • 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
    • F01N3/2842—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for monolithic supports, e.g. of honeycomb type
    • 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
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/08—Two or more expansion chambers in series separated by apertured walls only

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Abstract

【課題】筒体内に設けられた蕊板の安定性が向上し、消音器内に設けられる筒体の加工過程が簡単化する。
【解決手段】消音器は、内燃エンジンの廃棄ガス排出通路に設けられており、筐体内に少なくとも一隔板があり、それにより、消音器の内部を、廃棄ガスを排出させようと導くのに使われる複数つながる膨脹室を形成する。触媒筒体は、隔板の上に一体形成され、筒体には少なくとも二膨脹室の間につながる吸気側と排気側があり、吸気側と排気側の間にある筒体内には、触媒に覆われる蕊板が少なくとも一つあり、筒体には、蕊板を排気側方向へ滑らせないようにするためのフェンダー部が設けられる触媒芯板位置固定装置である。
【選択図】図１The stability of a gutter provided in a cylinder is improved, and the machining process of the cylinder provided in a silencer is simplified.
A silencer is provided in a waste gas discharge passage of an internal combustion engine, and there is at least a diaphragm in the housing, thereby guiding the inside of the silencer to discharge waste gas. Forms multiple connected expansion chambers to be used. The catalyst cylinder is integrally formed on the partition plate, and the cylinder has at least an intake side and an exhaust side connected between the two expansion chambers, and the cylinder between the intake side and the exhaust side is covered with the catalyst. There is at least one soot plate, and the cylinder body is a catalyst core plate position fixing device provided with a fender portion for preventing the soot from sliding in the exhaust side direction.
[Selection] Figure 1

Description

本考案は、内燃エンジンの消音器内に設けられた触媒筒体に関わり、特に筒体内の触媒芯板を廃棄ガスの排出方向へ滑らせないようにする装置である。 The present invention relates to a catalyst cylinder provided in a silencer of an internal combustion engine. In particular, the present invention is an apparatus that prevents a catalyst core plate in the cylinder from sliding in the exhaust direction of waste gas.

為廃棄ガス排出基準がだんだん厳しくなってきたが、それに対応するため、業者たちは、例えば、自動車、バイク又は草刈機のエンジンの廃棄ガスの排出通路に金屬筒体を設けて、その中に触媒に覆われるための金屬蕊板を設ける。前記触媒には、通常、パラジウム（Ｐｄ）、プラチナ（Ｐｔ）、ロジウム（Ｒｈ）等の貴金属が含まれて、それによって、エンジンの廃棄ガスを浄化して、廃棄ガスが外界の空気の品質へのマイナス影響を低減することができる。 For this reason, in order to respond to the stricter standards for waste gas emissions, for example, suppliers have provided a metal rod cylinder in the exhaust gas discharge passage of an engine of a car, a motorcycle or a mower, for example, and a catalyst in it. A metal plate to be covered with is provided. The catalyst usually contains a noble metal such as palladium (Pd), platinum (Pt), rhodium (Rh), thereby purifying the engine waste gas, and reducing the waste gas to the quality of the outside air. The negative influence of can be reduced.

また、前記金屬蕊板は通常、平板式及び波形式の蕊板が相互に嵌めあい、結合し、渦巻状に巻かれたものとして、筒体内に埋めこめられて、筒体との間に一体化するようと溶接固定され、筒体内で廃棄ガスを導くのに使われる複数の通し穴が形成される。 In addition, the metal plate is usually embedded in a cylindrical body as a flat plate and corrugated plate that are fitted together, combined, and wound in a spiral shape, and is integrally formed between the cylindrical body and the cylindrical body. A plurality of through-holes are formed which are fixed by welding and used to guide waste gas in the cylinder.

しかし、上述した蕊板の間、及び蕊板と筒体の間に溶接で固定されるため、コストが低減できないものであり、その問題点を克服するため、台湾公告第３８６５７１号特許に蕊板の位置を筒体内に固定する技術が掲示されており、蕊板に収められた筒体の両側に、それぞれ幾多かの固定孔が設けられ、各固定孔の間に固定棚が設けられて、それにより、高温、振動又は廃棄ガスの排出により、蕊板を筒体から滑らせないようにすると同時に、蕊板に覆われる触媒に、摩擦やぶつかりがあっても落とされないようにするものであり、しかし、その間、別途に固定孔と固定棚が必要となるので、加工工程が余計に増やされるし、筒体をガス排出通路の消音器内に設けるとき、溶接により筒体を消音器内の隔板に固定しなければならないので、加工工程が増やされると同時に、コストが増えるという問題点があり、それらを解決しなければならない。
台湾公告第３８６５７１号特許 However, since it is fixed by welding between the above-mentioned plate and between the plate and the cylinder, the cost cannot be reduced. In order to overcome the problem, the position of the plate is disclosed in the Taiwan Publication No. 386571 patent. The technology for fixing the inside of the cylinder is posted, and a plurality of fixing holes are provided on both sides of the cylinder housed in the plate, and a fixing shelf is provided between the fixing holes, thereby , Which prevents the sliding plate from sliding from the cylinder by high temperature, vibration or exhaust of waste gas, and at the same time, prevents the catalyst covered by the sliding plate from being dropped even if there is friction or collision, but In the meantime, since a separate fixing hole and a fixed shelf are required, the number of processing steps is increased, and when the cylinder is provided in the silencer of the gas discharge passage, the cylinder is separated by welding into the silencer in the silencer. Must be fixed to the processing At the same time degree is increased, there is a problem that the cost increases, must solve them.
Taiwan Notice No. 386571 Patent

本考案の目的は、消音器内に設けられ、触媒芯板を滑らせないようにするための位置固定装置を提供することである。 An object of the present invention is to provide a position fixing device provided in a silencer so as not to slide a catalyst core plate.

上記の目的を達成するために、消音器は、内燃エンジンの廃棄ガス排出通路に設けられており、筐体内に少なくとも一隔板があり、それにより、消音器の内部を、廃棄ガスを排出させようと導くのに使われる複数つながる膨脹室を形成する。 In order to achieve the above object, the silencer is provided in the waste gas discharge passage of the internal combustion engine, and has at least a partition plate in the housing, thereby exhausting the waste gas inside the silencer. A plurality of connected expansion chambers are used for guiding.

触媒筒体は、隔板の上に一体形成され、筒体には少なくとも二膨脹室の間につながる吸気側と排気側があり、吸気側と排気側の間にある筒体内には、触媒に覆われる蕊板が少なくとも一つあり、筒体には、蕊板を排気側方向へ滑らせないようにするためのフェンダー部が設けられる触媒芯板位置固定装置である。 The catalyst cylinder is integrally formed on the partition plate, and the cylinder has at least an intake side and an exhaust side connected between the two expansion chambers, and the cylinder between the intake side and the exhaust side is covered with the catalyst. There is at least one soot plate, and the cylinder body is a catalyst core plate position fixing device provided with a fender portion for preventing the soot from sliding in the exhaust side direction.

その他に、本考案は 前記フェンダー部は、筒体の排気側に一体形成された交差状、カーブ状又は分かれたシート状のフェンダーバーであり、前記フェンダー部は、凸凹状又は波状の形をしており、芯板に貼り付け、芯板の滑りを止めることができる凹部があり、また、凹部との間に通気孔が形成される凸部が設けられ、前記フェンダー部は、隔板の上に設けられており、筒体は、隔板上に結合されるように設けられてもよい触媒芯板位置固定装置でもある。 In addition, in the present invention, the fender portion is a cross-shaped, curved or divided sheet-shaped fender bar integrally formed on the exhaust side of the cylindrical body, and the fender portion has an uneven or wavy shape. A concave portion that can be attached to the core plate to stop the sliding of the core plate, and a convex portion is formed between the concave portion and a vent hole. The cylindrical body is also a catalyst core plate position fixing device that may be provided so as to be coupled to the partition plate.

上述により、金屬筒体内に固定される蕊板の加工過程の複雑さが簡単化され、筒体内に設けられる蕊板の安定性が向上されるほかに、蕊板を入れるための筒体を一体化し、消音器内に設けられるようにして、筒体が消音器内に設けられる加工過程が簡単化され、更に、触媒芯板と筒体との組み合わせ、及び消音器内への配置效率が更に向上されるのである。 As described above, the complexity of the processing process of the plate fixed to the metal rod cylinder is simplified, the stability of the plate provided in the cylinder is improved, and the cylinder for inserting the plate is integrated. The processing process in which the cylinder is provided in the silencer is simplified so that the combination of the catalyst core plate and the cylinder and the arrangement efficiency in the silencer are further improved. It is improved.

本考案について詳しく述べるために、以下のように好適な実施例を挙げて、図面を参照しながら詳しく説明する。 In order to describe the present invention in detail, a preferred embodiment will be described as follows in detail with reference to the drawings.

図１の本考案の第一実施例の断面図に示すように、消音器１は、内燃エンジンの廃棄ガス排出通路１０につながっており、筐体内に少なくとも一隔板２（図２、図６に示すように）があり、消音器１の内部を、廃棄ガスを排出させようと導くのにつながる第一膨脹室１１と第二膨脹室１２が形成されており、第一膨脹室１１は、廃棄ガス排出通路１０の排気管１３により、エンジンにつながり、第二膨脹室１２消音器１にある尾管１４を経て、外界の大気に通じている。 As shown in the cross-sectional view of the first embodiment of the present invention in FIG. 1, the silencer 1 is connected to the waste gas discharge passage 10 of the internal combustion engine, and has at least a diaphragm 2 (FIGS. 2 and 6) in the housing. The first expansion chamber 11 and the second expansion chamber 12 are formed to lead the inside of the silencer 1 to exhaust the waste gas. The exhaust pipe 13 of the waste gas discharge passage 10 is connected to the engine and communicates with the outside atmosphere through the tail pipe 14 in the second expansion chamber 12 silencer 1.

触媒筒体３は、隔板２の上に一体形成され、筒体３上には、第一と第二膨脹室１１、１２の間につながる吸気側３１と排気側３２があり、吸気側、排気側３１と３２の間にある筒体３内には、触媒に覆われる蕊板４が少なくとも一つあり、本実施では、触媒に覆われる複数の蕊板４と４１を例として（図２、図３の通り）挙げるが、本実施例では、平板式蕊板４及び波形式蕊板４１で巻かれた渦巻状蕊板４０が採用され、また、蕊板４と４１の間に巻かれたうえ、廃棄ガスを導くための複数の通し穴４２が形成され、各通し穴４２は筒体３の吸気側、排気側３１と３２の間につながる。それと同時に、筒体３の上、蕊板４０を排気側３２方向へ滑らせないようにするためのフェンダー部５があり、フェンダー部５には、各通し穴４２と第二膨脹室１２をつなぐ排気口５１（図６）が少なくとも一つ設けられる触媒芯板位置固定装置である。 The catalyst cylinder 3 is integrally formed on the partition plate 2. On the cylinder 3, there are an intake side 31 and an exhaust side 32 connected between the first and second expansion chambers 11, 12. In the cylinder 3 between the exhaust sides 31 and 32, there is at least one saddle plate 4 covered with the catalyst. In this embodiment, a plurality of saddle plates 4 and 41 covered with the catalyst are taken as an example (FIG. 2). As shown in FIG. 3), in the present embodiment, a spiral skirt 40 wound around the flat plate 4 and the corrugated plate 41 is employed, and is wound between the plates 4 and 41. In addition, a plurality of through holes 42 for guiding the waste gas are formed, and each through hole 42 is connected between the intake side and the exhaust side 31 and 32 of the cylindrical body 3. At the same time, a fender portion 5 is provided on the cylinder 3 so as not to slide the gutter 40 toward the exhaust side 32, and the through holes 42 and the second expansion chamber 12 are connected to the fender portion 5. The catalyst core plate position fixing device is provided with at least one exhaust port 51 (FIG. 6).

より具体的な実施では、本考案において、パラジウム（Ｐｄ）、プラチナ（Ｐｔ）、ロジウム（Ｒｈ）等の貴金属が含まれるものである。 In a more specific implementation, the present invention includes noble metals such as palladium (Pd), platinum (Pt), rhodium (Rh).

前記フェンダー部５は、筒体３の排気側３２に一体形成された交差状、カーブ状又は分かれたシート状のフェンダーバー５２（図２、図３、図４と図５に示すように）である。 The fender portion 5 is a cross-shaped, curved or separate sheet-shaped fender bar 52 (as shown in FIGS. 2, 3, 4 and 5) integrally formed on the exhaust side 32 of the cylindrical body 3. is there.

上述の部品の組み合わせにより、本考案の実施にあたって、特にエンジンが運転されたとき、エンジンから発生された廃棄ガスは、廃棄ガス排出通路１０の排気管１３を経て、消音器１の第一膨脹室１１内（図１）へと導かれ、それから、筒体３の吸気側３１から蕊板４０の複数の通し穴４２（図６）へ導かれ、更にフェンダー部５の排気口５１と筒体３の排気側３２を経て、第二膨脹室１２内へと導かれてから、尾管１４から外界の大気へ排出される。その間、廃棄ガスは、複数の通し穴４２を通っているとき、蕊板４、４１にある触媒との酸化、還元を行って、廃棄ガスを浄化する。それと同時に、廃棄ガスの流れで、蕊板４０は筒体３の排気側３２方向へ滑り出すが、蕊板４０がフェンダー部５のフェンダーバー５２に遮られて、それにより、高温、振動又は廃棄ガスの流れで、蕊板４０が筒体３を離れることが制御され、また、蕊板４０上に覆われる触媒は、摩擦やぶつかりで落ちたりすることが防がれて、筒体３内に設けられた蕊板４０の安定性が高められるほかに、蕊板４０の耐久の使用寿命が延ばされる。上述の方法により、触媒芯板４０が金屬筒体３内に設けられた加工過程の複雑さが簡単化され、そして、蕊板４０内に設けられた筒体３と一体形成され、筒体３が消音器１内に設けられる加工工程が簡単化されるようになり、触媒芯板４０と筒体３との組み合わせ、及び消音器１内への配置効率が向上される。 Due to the combination of the above-described components, when the engine is operated, particularly when the engine is operated, waste gas generated from the engine passes through the exhaust pipe 13 of the waste gas discharge passage 10 and the first expansion chamber of the silencer 1. 11 (FIG. 1), then led from the intake side 31 of the cylinder 3 to the plurality of through holes 42 (FIG. 6) of the flange 40, and further the exhaust port 51 of the fender portion 5 and the cylinder 3 After being led into the second expansion chamber 12 through the exhaust side 32, the tail pipe 14 is discharged to the outside atmosphere. Meanwhile, when the waste gas passes through the plurality of through-holes 42, the waste gas is purified by oxidizing and reducing the catalyst in the saddle plates 4 and 41. At the same time, the slat 40 starts to slide toward the exhaust side 32 of the cylindrical body 3 due to the flow of waste gas, but the slat 40 is blocked by the fender bar 52 of the fender portion 5, thereby causing high temperature, vibration or waste gas. In this flow, it is controlled that the gutter 40 leaves the cylinder 3, and the catalyst covered on the gutter 40 is prevented from falling due to friction or collision, and is provided in the cylinder 3. In addition to enhancing the stability of the slat 40, the durable service life of the slat 40 is extended. By the above-described method, the complexity of the processing step in which the catalyst core plate 40 is provided in the metal rod cylinder 3 is simplified, and the catalyst core plate 40 is integrally formed with the cylinder 3 provided in the rod plate 40. The processing steps provided in the silencer 1 are simplified, and the combination of the catalyst core plate 40 and the cylinder 3 and the arrangement efficiency in the silencer 1 are improved.

前記フェンダー部５のフェンダーバー５２は、凸凹状又は波状（図７）の形をしており、少なくとも芯板４０の滑りを止めることができる凹部５３が一つあり、また、凹部５３との間に通気孔５５が形成される凸部５４が少なくとも一つ設けられているが、本実施では、複数の凹部５３と凸部５４を例としてあげるが、複数の凹部５３と凸部５４の間隔で、複数の通気孔５５が形成され、蕊板４０の通し穴４２と通気孔５５とはつながっている。それより、複数の通し穴４２を通った廃棄ガスは、複数の通気孔５５を経て、第二膨脹室１２内へと導かれるようになり、蕊板４０に導かれた廃棄ガスの順調さが向上される。 The fender bar 52 of the fender portion 5 has a concave or convex shape or a wave shape (FIG. 7), and has at least one concave portion 53 that can stop the slippage of the core plate 40. In this embodiment, a plurality of concave portions 53 and convex portions 54 are taken as an example. However, in the present embodiment, the interval between the plurality of concave portions 53 and the convex portions 54 is provided. A plurality of vent holes 55 are formed, and the through holes 42 of the gutter plate 40 and the vent holes 55 are connected. As a result, the waste gas that has passed through the plurality of through holes 42 is guided into the second expansion chamber 12 through the plurality of vent holes 55, and the smoothness of the waste gas that has been guided to the roof plate 40 is improved. Be improved.

また、前記筒体３は隔板２でプレスしてできたもの、又は、隔板２と筒体３とは一体形成されたものであり、なお、筒体３内にも平板式蕊板４で巻かれた渦巻状蕊板を設けることができる。 The cylindrical body 3 is formed by pressing with the partition plate 2 or the partition plate 2 and the cylindrical body 3 are integrally formed. It is possible to provide a spiral board wound in

図８の本考案の第二実施例の立体分解図に示すように、草刈機の内燃エンジンの廃棄ガス排出通路に消音器１ａ（図９）が設けられる。前記消音器１ａは、上蓋１６ａと下蓋１５ａからなるものであり、消音器１ａ内に少なくとも一隔板２ａを設けることにより、消音器１ａ内部を、廃棄ガスを排出させようと導くのにつながる下層膨脹室１１ａと上層膨脹室１２ａを形成しており、隔板２ａの上に少なくとも一フェンダー部５ａがあり、隔板２ａに触媒筒体３ａがあり、下層と上層膨脹室１１ａと１２ａとの間をつなぐ吸気側３１ａと排気側３２ａが設けられており、吸気側、排気側３１ａと３２ａの間にある筒体３ａ内には、少なくとも触媒に覆われる蕊板４が設けられているが、本実施では、上述と同じく、平板式蕊板４と波形式蕊板４１で巻かれた渦巻状蕊板４０が採用される例として（図２、図１０に示すように）を挙げる。前記フェンダー部５ａは、蕊板４０が排気側３２ａ方向へ滑らせないように設けられている。 As shown in the three-dimensional exploded view of the second embodiment of the present invention in FIG. 8, a silencer 1a (FIG. 9) is provided in the waste gas discharge passage of the internal combustion engine of the mower. The silencer 1a is composed of an upper lid 16a and a lower lid 15a. By providing at least the diaphragm 2a in the silencer 1a, the silencer 1a is guided to discharge waste gas. The lower expansion chamber 11a and the upper expansion chamber 12a are formed. At least one fender portion 5a is provided on the partition plate 2a, the catalyst cylinder 3a is provided on the partition plate 2a, and the lower and upper expansion chambers 11a and 12a are provided. An intake side 31a and an exhaust side 32a are provided to connect each other, and in the cylinder 3a located between the intake side and the exhaust sides 31a and 32a, at least a cover plate 4 covered with a catalyst is provided. In the present embodiment, as described above, as an example in which the spiral ridge plate 40 wound by the flat plate plate 4 and the corrugated plate 41 is employed (as shown in FIGS. 2 and 10). The fender portion 5a is provided so that the gutter 40 does not slide toward the exhaust side 32a.

前記下層膨脹室１１ａは、下蓋１５ａの底部にある吸気口１７ａによりエンジンとつながり（図８、図９）、上層膨脹室１２ａは、上蓋１６ａの上部にある排気口１８ａにより外界の大気とつながっている。前記蕊板４０の複数の通し穴４２は筒体３ａの吸気側、排気側３１ａと３２ａの間にもつながっている（図１０）。上記フェンダー部５ａの上には、各通し穴４２と上層膨脹室１２ａをつなぐ排気口５１ａが少なくとも一つあり、フェンダー部５ａは一体形成され、筒体３ａ排気側３２ａ上にある交差状、カーブ状又は分かれたシート状のフェンダーバー５２ａ（図３、図４、図５に示すように）であり、その他の部品構成は、上述した第一実施例と同様である。 The lower expansion chamber 11a is connected to the engine through the intake port 17a at the bottom of the lower lid 15a (FIGS. 8 and 9), and the upper expansion chamber 12a is connected to the outside atmosphere through the exhaust port 18a at the upper portion of the upper cover 16a. ing. The plurality of through holes 42 of the flange plate 40 are also connected between the intake side and the exhaust side 31a and 32a of the cylinder 3a (FIG. 10). On the fender portion 5a, there is at least one exhaust port 51a that connects each through hole 42 and the upper expansion chamber 12a. The fender portion 5a is integrally formed and has an intersecting, curved shape on the exhaust side 32a of the cylinder 3a. Or a separate sheet-like fender bar 52a (as shown in FIGS. 3, 4, and 5), and the other components are the same as those in the first embodiment.

上述により、エンジンが運転されたとき、エンジンから発生された廃棄ガスは、廃棄ガス排出通路及び吸気口１７ａにより、消音器１ａの下層膨脹室１１ａ内へ導かれ（図９）、筒体３ａの吸気側３１ａを経て、蕊板４０の複数の通し穴４２（図１０）へ導かれ、それから、フェンダー部５ａの排気口５１ａと筒体３ａの排気側３２ａにより上層膨脹室１２ａ内へと導かれてから、排気口１８ａから外界の大気へ排出される。その間、廃棄ガスは、複数の通し穴４２を通っているとき、蕊板４と４１にある触媒との酸化、還元を行って、廃棄ガスを浄化する。それと同時に、廃棄ガスの流れで、蕊板４０は筒体３ａの排気側３２ａ方向へ滑り出すが、蕊板４０がフェンダー部５ａのフェンダーバー５２ａに遮られるようになり、その実施形態は、上述の第一実施例と同様である。 As described above, when the engine is operated, waste gas generated from the engine is guided into the lower expansion chamber 11a of the silencer 1a through the waste gas discharge passage and the intake port 17a (FIG. 9), and the cylinder 3a It is led to the plurality of through holes 42 (FIG. 10) through the suction side 31a and then led into the upper expansion chamber 12a by the exhaust port 51a of the fender portion 5a and the exhaust side 32a of the cylindrical body 3a. Then, it is discharged from the exhaust port 18a to the outside atmosphere. Meanwhile, when the waste gas passes through the plurality of through holes 42, the waste gas is purified by oxidizing and reducing the catalyst in the saddle plates 4 and 41. At the same time, the slat 40 starts to slide toward the exhaust side 32a of the cylindrical body 3a due to the flow of the waste gas, but the slat 40 is blocked by the fender bar 52a of the fender portion 5a. The same as in the first embodiment.

上述は、本考案の好適な実施例による説明に使われるのみであり、それを以って、本考案の請求範囲を制限してはならず、本考案に掲示されたコンセプトや考えに基づいて、その改造、変更を行って作られたものは、すべて後述の請求範囲に含まれるものとする。 The foregoing is only used to explain the preferred embodiment of the present invention, and should not be used to limit the scope of the claims of the present invention, but based on the concepts and ideas posted in the present invention. Anything made by modifying or changing it shall be included in the following claims.

本考案の第一実施例の断面図Sectional view of the first embodiment of the present invention 本考案の第一実施例の立体分解図Three-dimensional exploded view of the first embodiment of the present invention 本考案の第一実施例における筒体の正面図Front view of the cylinder in the first embodiment of the present invention 本考案の第一実施例における筒体のもう一つの正面図Another front view of the cylinder in the first embodiment of the present invention 本考案の第一実施例における筒体のほかの正面図The other front view of the cylinder in the first embodiment of the present invention 本考案の第一実施例における筒体の断面図Sectional drawing of the cylinder in the first embodiment of the present invention 本考案の第一実施例における筒体のもう一つの断面図Another sectional view of the cylinder in the first embodiment of the present invention 本考案の第二実施例の立体分解図Three-dimensional exploded view of the second embodiment of the present invention 本考案の第二実施例の断面図Sectional view of the second embodiment of the present invention 図９の部分拡大図Partial enlarged view of FIG.

符号の説明Explanation of symbols

１ 消音器
１ａ 消音器
１０ 廃棄ガス排出通路
１１ 第一膨脹室
１１ａ 下層膨脹室
１２ 第二膨脹室
１２ａ 上層膨脹室
１３ 排気管
１４ 尾管
１５ａ 下蓋
１６ａ 上蓋
１７ａ 吸気口
１８ａ 排気口
２ 隔板
２ａ 隔板
３ 筒体
３ａ 筒体
３１ 吸気側
３１ａ 吸気側
３２ 排気側
３２ａ 排気側
４ 蕊板
４０ 蕊板
４１ 蕊板
４２ 通し穴
５ フェンダー部
５ａ フェンダー部
５１ 排気口
５１ａ 排気口
５２ フェンダーバー
５２ａ フェンダーバー
５３ 凹部
５４ 凸部
５５ 通気孔 1 Silencer 1a Silencer 10 Waste gas discharge passage 11 First expansion chamber 11a Lower expansion chamber 12 Second expansion chamber 12a Upper expansion chamber 13 Exhaust pipe 14 Tail pipe 15a Lower lid 16a Upper lid 17a Inlet 18a Exhaust outlet 2 Separator 2a Separator plate 3 Tubular body 3a Tubular body 31 Intake side 31a Intake side 32 Exhaust side 32a Exhaust side 4 Cover plate 40 Plate 41 41 Plate 42 Through-hole 5 Fender portion 5a Fender portion 51 Exhaust port 51a Exhaust port 52 Fender bar 52a Fender bar 53 Concave portion 54 Convex portion 55 Vent

Claims (6)

消音器は、内燃エンジンの廃棄ガス排出通路に設けられており、筐体内に少なくとも一隔板があり、それにより、消音器の内部を、廃棄ガスを排出させようと導くのに使われる複数つながる膨脹室を形成する。触媒筒体は、隔板の上に一体形成され、筒体には少なくとも二膨脹室の間につながる吸気側と排気側があり、吸気側と排気側の間にある筒体内には、触媒に覆われる蕊板が少なくとも一つあり、筒体には、蕊板を排気側方向へ滑らせないようにするためのフェンダー部が設けられる触媒芯板位置固定装置である。 The muffler is provided in the waste gas discharge passage of the internal combustion engine and has at least a diaphragm in the housing, thereby connecting the plurality of mufflers used to guide the exhaust of the waste gas An expansion chamber is formed. The catalyst cylinder is integrally formed on the partition plate, and the cylinder has at least an intake side and an exhaust side connected between the two expansion chambers, and the cylinder between the intake side and the exhaust side is covered with the catalyst. There is at least one soot plate, and the cylinder body is a catalyst core plate position fixing device provided with a fender portion for preventing the soot from sliding in the exhaust side direction. 前記フェンダー部は、筒体の排気側に一体形成された交差状、カーブ状又は分かれたシート状のフェンダーバーであることを特徴とする、請求項１に記載の触媒芯板位置固定装置である。 2. The catalyst core plate position fixing device according to claim 1, wherein the fender portion is a cross-shaped, curved-shaped or separate sheet-shaped fender bar integrally formed on an exhaust side of the cylindrical body. . 前記フェンダー部は、凸凹状又は波状の形をしており、芯板に貼り付け、芯板の滑りを止めることができる凹部が少なくとも一つあり、また、凹部との間に通気孔が形成される凸部が少なくとも一つ設けられることを特徴とする、請求項１、請求項２に記載の触媒芯板位置固定装置である。 The fender portion has an uneven or wavy shape, has at least one recess that can be attached to the core plate to stop the slip of the core plate, and a vent hole is formed between the recess. The catalyst core plate position fixing device according to claim 1, wherein at least one convex portion is provided. 消音器は、内燃エンジンの廃棄ガス排出通路に設けられており、筐体内に少なくとも一隔板があり、それにより、消音器の内部を、廃棄ガスを排出させようと導くのに使われる複数つながる膨脹室を形成し、その上、隔板に少なくとも一フェンダー部がある。触媒筒体は、隔板の上に一体形成され、筒体には少なくとも二膨脹室の間につながる吸気側と排気側があり、吸気側と排気側の間にある筒体内には、触媒に覆われる蕊板が少なくとも一つあり、蕊板を排気側方向へ滑らせないようにするためのフェンダー部が設けられる触媒芯板位置固定装置である。 The muffler is provided in the waste gas discharge passage of the internal combustion engine and has at least a diaphragm in the housing, thereby connecting the plurality of mufflers used to guide the exhaust of the waste gas An expansion chamber is formed, and there is at least one fender portion on the partition plate. The catalyst cylinder is integrally formed on the partition plate, and the cylinder has at least an intake side and an exhaust side connected between the two expansion chambers, and the cylinder between the intake side and the exhaust side is covered with the catalyst. This is a catalyst core plate position fixing device that includes at least one soot plate and is provided with a fender portion for preventing the soot plate from sliding in the exhaust side direction. 前記フェンダー部は、筒体の排気側に一体形成された交差状、カーブ状又は分かれたシート状のフェンダーバーであることを特徴とする、請求項４に記載の触媒芯板位置固定装置である。 5. The catalyst core plate position fixing device according to claim 4, wherein the fender portion is a cross-shaped, curved-shaped or separate sheet-shaped fender bar integrally formed on the exhaust side of the cylindrical body. . 前記フェンダー部は、凸凹状又は波状の形をしており、芯板に貼り付け、芯板の滑りを止めることができる凹部、また、凹部との間に通気孔が形成される凸部が設けられることを特徴とする、請求項４、請求項５に記載の触媒芯板位置固定装置である。 The fender portion has a concave or convex shape, and is provided with a concave portion that can be attached to the core plate to stop the slippage of the core plate, and a convex portion in which a vent hole is formed between the concave portion. 6. The catalyst core plate position fixing device according to claim 4, wherein the catalyst core plate position fixing device is provided.
JP2007005814U 2007-06-12 2007-07-30 Catalyst core plate fixing device Expired - Fee Related JP3136792U (en)

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JP2568751Y2 (en) * 1992-02-28 1998-04-15 三恵技研工業株式会社 Exhaust gas purification device
JP3863939B2 (en) * 1996-04-05 2006-12-27 株式会社共立 2-cycle engine muffler
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