JPS5851365Y2 - Catalyst case for exhaust gas purification - Google Patents
Catalyst case for exhaust gas purificationInfo
- Publication number
- JPS5851365Y2 JPS5851365Y2 JP9988077U JP9988077U JPS5851365Y2 JP S5851365 Y2 JPS5851365 Y2 JP S5851365Y2 JP 9988077 U JP9988077 U JP 9988077U JP 9988077 U JP9988077 U JP 9988077U JP S5851365 Y2 JPS5851365 Y2 JP S5851365Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- catalyst
- exhaust gas
- gas purification
- outer cylinder
- 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.)
- Expired
Links
Landscapes
- Exhaust Gas After Treatment (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Description
【考案の詳細な説明】
この考案は、内燃機関の排気ガス浄化用の触媒ケースの
改良に関する。[Detailed Description of the Invention] This invention relates to an improvement of a catalyst case for purifying exhaust gas of an internal combustion engine.
内燃機関の排気ガスを触媒に触れさせて酸化反応を起さ
せて浄化する装置がある。There is a device that purifies exhaust gas from an internal combustion engine by bringing it into contact with a catalyst to cause an oxidation reaction.
この場合、ペレント状の触媒を用いるときは、ペレット
状触媒を多数の小孔を設けたパンチングプレートの籠ニ
入れ、排気ガスが通過できるようにする。In this case, when a pellet-shaped catalyst is used, the pellet-shaped catalyst is placed in a cage of a punching plate provided with a large number of small holes to allow exhaust gas to pass through.
すなわち、浄化筒内に装着された基板〇一側面に、パン
チングプレートの内外二重筒からなる触媒ケースを片持
状に支持させ、そのケース内にペレット状触媒を封入し
、その触媒内を排気ガスが通過するようにしている。In other words, a catalyst case consisting of a punching plate with double inner and outer cylinders is supported in a cantilevered manner on one side of the substrate installed in the purification cylinder, a pellet catalyst is sealed in the case, and the inside of the catalyst is exhausted. Allowing gas to pass through.
ところが、パンチングプレートは、切り端に孔があると
、触媒の重さを支えるに弱いので、基板にパンチングプ
レートを溶接する部分は、小孔を設けないようにする必
要があり、大きいパンチングプレートを必要寸法に裁断
するノテはなく、必要寸法の板にパンチングを施すよう
にして、端部に小孔ができないようにしており、製作手
数が多くコスト高になっている。However, if the punching plate has holes at the cut end, it will be weak to support the weight of the catalyst, so it is necessary to avoid making small holes in the part where the punching plate is welded to the substrate, and it is difficult to use a large punching plate. There is no cutter to cut to the required size, and the board is punched to the required size to prevent small holes from forming at the edges, which requires a lot of manufacturing time and increases costs.
この考案は、かかる点に鑑み改善したもので、以下図面
に示す本考案の実施例について説明する。This invention has been improved in view of these points, and an embodiment of the invention shown in the drawings will be described below.
中央開口を有する基板1の一側面に環状の突部2をプレ
ス成形する。An annular protrusion 2 is press-molded on one side of a substrate 1 having a central opening.
そして、多数の1JfL 3を設けたパンチングプレー
トを所定の大きさに裁断して丸めた内筒4の基端を環状
の突部2の内周側に溶接する。Then, a punching plate provided with a large number of 1JfL 3 is cut into a predetermined size, and the proximal end of the inner tube 4 is welded to the inner peripheral side of the annular protrusion 2.
又、多数の小孔3を設けたパンチングプレートを所定の
大きさに裁断して丸めた外筒5の基端を環状の突部2の
外周側に合せ、その上に帯板6を巻き、帯板6と共に外
筒5を基板1に溶接する。Further, a punching plate with a large number of small holes 3 is cut into a predetermined size, the outer cylinder 5 is rolled up, and the base end of the outer cylinder 5 is aligned with the outer circumferential side of the annular protrusion 2, and a band plate 6 is wound thereon. The outer cylinder 5 and the strip plate 6 are welded to the substrate 1.
内筒4の先端には塞ぎ板7を溶接し、外筒5の先端にも
リング状の塞ぎ板8を溶接して、内筒4と外筒5により
環状の触媒室9を設ける。A closing plate 7 is welded to the tip of the inner tube 4, and a ring-shaped closing plate 8 is also welded to the tip of the outer tube 5, so that an annular catalyst chamber 9 is formed by the inner tube 4 and the outer tube 5.
触媒室9には入口10からペレッ)状(7)Millを
つめる。The catalyst chamber 9 is filled with pellet-like (7) Mill from the inlet 10.
尚、基板1は浄化筒12の合せ面に固定する。Note that the substrate 1 is fixed to the mating surface of the purification cylinder 12.
作用について説明する。The effect will be explained.
浄化筒12内を流れる排気ガスは、内筒4の内側から触
媒室9を通って外筒5の外側に抜ける。Exhaust gas flowing in the purification cylinder 12 passes from the inside of the inner cylinder 4 through the catalyst chamber 9 to the outside of the outer cylinder 5.
そして、触媒室9で触媒11に触れて酸化反応を起して
浄化する。Then, it touches the catalyst 11 in the catalyst chamber 9 to cause an oxidation reaction and purify it.
而して、触媒11の重さや、振動に対し、外筒5と基板
1の溶接部に最も負荷が加わるが、ここに、帯板6を一
体に溶接するので、小孔3の切り端があっても、音板6
によって補強されているので、亀裂等の生じる心配がな
い。The weight of the catalyst 11 and vibrations apply the most load to the welded part between the outer cylinder 5 and the substrate 1, but since the strip plate 6 is welded together here, the cut end of the small hole 3 is Even if there is, tone plate 6
Since it is reinforced, there is no need to worry about cracks or the like.
こうして、内筒4及び外筒5は、予め/J仔L3を設は
タハンチングプレートを所望寸法に裁断して使用できる
。In this way, the inner cylinder 4 and the outer cylinder 5 can be used by setting the /J-shaped L3 in advance and cutting the hunting plate to desired dimensions.
以上説明したように、この考案は、環状の突部を設けた
上記突部の内周側にパンチングプレートを丸めた内筒を
溶接し、突部の外周側にパンチングプレートを丸めた外
筒に帯板を合わせて溶接し、内筒及び外筒の先端に塞ぎ
板を溶接し、内筒及び外筒の間にペレット状触媒を挿入
するようにしたので、外筒の最も負荷の加わる部分が、
帯板一体に溶接されて補強されるので、亀裂が生じる心
配がない。As explained above, this invention involves welding an inner tube made of a rounded punching plate to the inner circumference of the annular protrusion, and an outer tube made of a rolled punching plate to the outer circumference of the protrusion. The strip plates are welded together, a closing plate is welded to the tips of the inner and outer cylinders, and a pellet catalyst is inserted between the inner and outer cylinders, so that the part of the outer cylinder that receives the most load is ,
Since the strip is welded and reinforced, there is no need to worry about cracking.
従って、内筒及び外筒は、予め小孔を設けたパンチング
プレートを所定寸法に裁断して使用でき、製作の手間が
省けて、コストダウンができる。Therefore, the inner cylinder and the outer cylinder can be used by cutting a punching plate with small holes in advance into a predetermined size, which saves time and effort in manufacturing and reduces costs.
第1図は本考案の一実施例を示す縦断面図、第2図は外
筒の一部展開図である。
1・・・・・・基板、2・・・・・・環状の突部、4・
・・・・・内筒、5・・・・・・外筒、6・・・・・・
帯板、7・・・・・・塞ぎ板、8・・・・・・塞ぎ板、
11・・・・・・触媒。FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a partially exploded view of the outer cylinder. 1... Substrate, 2... Annular protrusion, 4...
...Inner cylinder, 5...Outer cylinder, 6...
Band plate, 7... Closing plate, 8... Closing plate,
11...Catalyst.
Claims (1)
ようにした排気ガス浄化用の触媒ケースにおいて、中央
開口を有する基板の一側面に設はうした環状の突部の内
周側にパンチングプレートを丸めた内筒の基端を溶接し
、突部の外周側にパンチングプレートを丸めた外筒の基
端を帯板を重ね合せて溶接し、内筒及び外筒の先端に塞
ぎ板を溶接し、内筒及び外筒の間にペレット状触媒を挿
入するようにしたことな特徴とする排気ガス浄化用の触
媒ケース。In a catalyst case for exhaust gas purification that is supported in a cantilevered manner on one side of a substrate installed in a purification cylinder, the inner periphery of an annular protrusion provided on one side of a substrate having a central opening. Weld the base end of an inner cylinder with a rounded punching plate on the side, weld the base end of an outer cylinder with a rounded punching plate on the outer periphery of the protrusion, overlapping the band plates, and weld the ends of the inner cylinder and outer cylinder. A catalyst case for exhaust gas purification characterized by a welded closing plate and a pellet catalyst inserted between an inner cylinder and an outer cylinder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9988077U JPS5851365Y2 (en) | 1977-07-26 | 1977-07-26 | Catalyst case for exhaust gas purification |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9988077U JPS5851365Y2 (en) | 1977-07-26 | 1977-07-26 | Catalyst case for exhaust gas purification |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5427212U JPS5427212U (en) | 1979-02-22 |
JPS5851365Y2 true JPS5851365Y2 (en) | 1983-11-22 |
Family
ID=29037024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9988077U Expired JPS5851365Y2 (en) | 1977-07-26 | 1977-07-26 | Catalyst case for exhaust gas purification |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5851365Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2583966Y2 (en) * | 1992-09-29 | 1998-10-27 | デンヨー株式会社 | Exhaust gas purification catalyst device |
-
1977
- 1977-07-26 JP JP9988077U patent/JPS5851365Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5427212U (en) | 1979-02-22 |
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