JPH0457619U - - Google Patents
Info
- Publication number
- JPH0457619U JPH0457619U JP9806690U JP9806690U JPH0457619U JP H0457619 U JPH0457619 U JP H0457619U JP 9806690 U JP9806690 U JP 9806690U JP 9806690 U JP9806690 U JP 9806690U JP H0457619 U JPH0457619 U JP H0457619U
- Authority
- JP
- Japan
- Prior art keywords
- filter
- engine load
- exhaust gas
- switching valve
- flow
- 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
- 239000003054 catalyst Substances 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案のクレーム対応図、第２図は本
考案の一実施例を示す構成図、第３図は同上のフ
ローチヤート、第４図は同上の作用は説明するた
めの図である。
２……排気通路、３……第１フイルタ、４……
バイパス通路、５……第２フイルタ、６……排気
切換弁、７……制御装置、９……負荷センサ。
Fig. 1 is a diagram corresponding to the claims of the present invention, Fig. 2 is a configuration diagram showing an embodiment of the invention, Fig. 3 is a flowchart of the same, and Fig. 4 is a diagram for explaining the operation of the same. . 2... Exhaust passage, 3... First filter, 4...
Bypass passage, 5... Second filter, 6... Exhaust switching valve, 7... Control device, 9... Load sensor.
Claims (1)
排気通路にフイルタ本体の上流と下流とを連通す
る多数のセルが形成された触媒付第１フイルタを
介装する一方、他方の排気通路に多孔性部材から
なるハニカム状の隔壁により隔成された多数のセ
ルが形成されると共に各セルの出口と入口とが交
互に目封じされた第２フイルタを介装し、 かつ前記第１フイルタと第２フイルタとに排気
を選択的に切換えて流通させる切換弁と、機関負
荷を検出する機関負荷検出手段と、検出された機
関負荷が所定値未満のときに前記第１フイルタに
排気を流通させ、機関負荷が所定値以上のときに
第２フイルタに排気を流通させるべく前記切換弁
を切換制御する弁制御手段と、を備えたことを特
徴とする内燃機関の排気浄化装置。[Claims for Utility Model Registration] The exhaust passage of the engine is branched, and one of the branched exhaust passages is interposed with a first filter with a catalyst in which a large number of cells are formed that communicate the upstream and downstream sides of the filter body. On the other hand, a large number of cells separated by honeycomb-shaped partition walls made of a porous material are formed in the other exhaust passage, and a second filter is interposed in which the outlet and inlet of each cell are alternately sealed. , and a switching valve that selectively switches exhaust gas to flow through the first filter and the second filter, an engine load detection means that detects an engine load, and a switching valve that detects an engine load when the detected engine load is less than a predetermined value. an exhaust gas for an internal combustion engine, comprising: valve control means for controlling the switching valve to cause exhaust gas to flow through one filter and to flow exhaust gas through a second filter when the engine load is equal to or higher than a predetermined value; Purification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9806690U JPH0457619U (en) | 1990-09-20 | 1990-09-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9806690U JPH0457619U (en) | 1990-09-20 | 1990-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0457619U true JPH0457619U (en) | 1992-05-18 |
Family
ID=31838951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9806690U Pending JPH0457619U (en) | 1990-09-20 | 1990-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0457619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004031548A1 (en) * | 2002-10-01 | 2004-04-15 | Tokudaiji Institute Of Automotive Culture Inc. | Pm continuous regeneration device for diesel engine, and method of producing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0450420A (en) * | 1990-06-20 | 1992-02-19 | Hino Motors Ltd | Exhaust gas purifying device used for diesel engine |
-
1990
- 1990-09-20 JP JP9806690U patent/JPH0457619U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0450420A (en) * | 1990-06-20 | 1992-02-19 | Hino Motors Ltd | Exhaust gas purifying device used for diesel engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004031548A1 (en) * | 2002-10-01 | 2004-04-15 | Tokudaiji Institute Of Automotive Culture Inc. | Pm continuous regeneration device for diesel engine, and method of producing the same |
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