JPH0212020U - - Google Patents
Info
- Publication number
- JPH0212020U JPH0212020U JP8925188U JP8925188U JPH0212020U JP H0212020 U JPH0212020 U JP H0212020U JP 8925188 U JP8925188 U JP 8925188U JP 8925188 U JP8925188 U JP 8925188U JP H0212020 U JPH0212020 U JP H0212020U
- Authority
- JP
- Japan
- Prior art keywords
- case
- catalyst
- exhaust manifold
- reduction catalyst
- annular groove
- 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.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 claims description 14
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Description
第１図は本考案の一実施例の断面図、第２図は
第１図のケースの平面を半分だけ示す断面図、第
３図は第１図のものの変形例を示す断面図、第４
図はケースに酸化触媒を装着する場合を示す断面
図、第５図は本考案の他の実施例の断面図、第６
図は従来の触媒装置の断面図、第７図は触媒装置
の配設位置を示す説明図である。
１……触媒装置、３……エキゾーストマニホー
ルド、４……ケース、５……還元触媒、６……酸
化触媒、７，８……保持材、９，１０……２次空
気通路、１２……環状の溝、１３……孔。
Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a sectional view showing only half of the plane of the case shown in Fig. 1, Fig. 3 is a sectional view showing a modification of the case shown in Fig. 1, and Fig. 4 is a sectional view showing a modification of the case in Fig. 1.
The figure is a sectional view showing the case where the oxidation catalyst is installed in the case, FIG. 5 is a sectional view of another embodiment of the present invention, and FIG.
The figure is a sectional view of a conventional catalyst device, and FIG. 7 is an explanatory diagram showing the arrangement position of the catalyst device. 1... Catalyst device, 3... Exhaust manifold, 4... Case, 5... Reduction catalyst, 6... Oxidation catalyst, 7, 8... Holding material, 9, 10... Secondary air passage, 12... Annular groove, 13... hole.
Claims (1)
目の還元触媒と２段目の酸化触媒とを直列に配列
した触媒装置において、前記二つの触媒を間隔を
置いて一つのケースに収容すると共に、前記エキ
ゾーストマニホールドのケースへの結合部あるい
は該ケースの第１段目の還元触媒の外周部分の前
記エキゾーストマニホールド側部分に環状の溝を
設け、還元触媒の外周部分に前記環状の溝に連通
する多数個の孔を設けて、該孔を前記二つの触媒
の間の部分に開口したことを特徴とする触媒装置
。 In a catalyst device in which a first-stage reduction catalyst and a second-stage oxidation catalyst are arranged in series immediately downstream of the exhaust manifold, the two catalysts are housed in one case with an interval between them, and the exhaust manifold An annular groove is provided in the connecting portion to the case or in the exhaust manifold side portion of the outer periphery of the first stage reduction catalyst of the case, and a large number of holes are provided in the outer periphery of the reduction catalyst that communicate with the annular groove. A catalyst device characterized in that the hole is opened in a portion between the two catalysts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988089251U JPH0740650Y2 (en) | 1988-07-05 | 1988-07-05 | Catalytic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988089251U JPH0740650Y2 (en) | 1988-07-05 | 1988-07-05 | Catalytic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0212020U true JPH0212020U (en) | 1990-01-25 |
| JPH0740650Y2 JPH0740650Y2 (en) | 1995-09-20 |
Family
ID=31313803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988089251U Expired - Lifetime JPH0740650Y2 (en) | 1988-07-05 | 1988-07-05 | Catalytic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740650Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010001738A (en) * | 2007-10-31 | 2010-01-07 | Yamaha Motor Co Ltd | Exhaust gas treatment mechanism, engine unit having the mechanism, and vehicle having the engine unit |
| FR3123090A1 (en) * | 2021-05-18 | 2022-11-25 | Psa Automobiles Sa | CATALYTIC CONVERTER WITH EXHAUST GAS INLET SLEEVE EQUIPPED WITH AN AIR DIFFUSER |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539915A (en) * | 1976-07-12 | 1978-01-28 | Arvin Ind Inc | Catalytic converter |
| JPS55172613U (en) * | 1979-05-28 | 1980-12-11 | ||
| JPS6058818U (en) * | 1983-09-30 | 1985-04-24 | 株式会社 土屋製作所 | Two-stage catalytic converter |
-
1988
- 1988-07-05 JP JP1988089251U patent/JPH0740650Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539915A (en) * | 1976-07-12 | 1978-01-28 | Arvin Ind Inc | Catalytic converter |
| JPS55172613U (en) * | 1979-05-28 | 1980-12-11 | ||
| JPS6058818U (en) * | 1983-09-30 | 1985-04-24 | 株式会社 土屋製作所 | Two-stage catalytic converter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010001738A (en) * | 2007-10-31 | 2010-01-07 | Yamaha Motor Co Ltd | Exhaust gas treatment mechanism, engine unit having the mechanism, and vehicle having the engine unit |
| FR3123090A1 (en) * | 2021-05-18 | 2022-11-25 | Psa Automobiles Sa | CATALYTIC CONVERTER WITH EXHAUST GAS INLET SLEEVE EQUIPPED WITH AN AIR DIFFUSER |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0740650Y2 (en) | 1995-09-20 |