JPH01127916U - - Google Patents
Info
- Publication number
- JPH01127916U JPH01127916U JP2293988U JP2293988U JPH01127916U JP H01127916 U JPH01127916 U JP H01127916U JP 2293988 U JP2293988 U JP 2293988U JP 2293988 U JP2293988 U JP 2293988U JP H01127916 U JPH01127916 U JP H01127916U
- Authority
- JP
- Japan
- Prior art keywords
- engine
- trap filter
- sub
- operating condition
- exhaust gas
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
第１図はこの考案の実施例を示す構成図、第２
図は同じく制御動作の一部を説明するフローチヤ
ート、第３図はメイントラツプフイルタが使用不
可能となる時の排圧を示すマツプである。
１……メイントラツプフイルタ、２……サブト
ラツプフイルタ、３……制御回路、４……切換弁
、１１……エンジン回転センサ、１２……エンジ
ンキースイツチ、１３……エンジン水温センサ、
１４……エンジン負荷センサ。
Figure 1 is a configuration diagram showing an embodiment of this invention, Figure 2
The same figure is a flowchart explaining a part of the control operation, and FIG. 3 is a map showing the exhaust pressure when the main trap filter becomes unusable. DESCRIPTION OF SYMBOLS 1...Main trap filter, 2...Sub trap filter, 3...Control circuit, 4...Switching valve, 11...Engine rotation sensor, 12...Engine key switch, 13...Engine water temperature sensor,
14...Engine load sensor.
Claims (1)
のメイントラツプフイルタを、またこのトラツプ
フイルタを迂回するように形成したバイパス通路
の途中に同じくサブトラツプフイルタをそれぞれ
介装し、これらトラツプフイルタの通路分岐部に
切換弁を設ける一方、エンジンの運転状態を検出
する手段と、これらの検出信号に基づいてエンジ
ンの始動に際しエンジン運転状態が安定するまで
はメイントラツプフイルタとサブトラツプフイル
タの両方に排気ガスを導くように切換弁を切り換
える制御手段を設けたことを特徴とするデイーゼ
ルエンジンの排気浄化装置。 A main trap filter of the particulate is installed in the middle of the engine exhaust passage, and a sub-trap filter is also installed in the middle of the bypass passage formed to bypass this trap filter, and the switch is made at the passage branch part of these trap filters. A valve is provided, and a means for detecting the operating condition of the engine is provided, and based on these detection signals, exhaust gas is guided to both the main trap filter and the sub trap filter until the engine operating condition becomes stable when starting the engine. An exhaust gas purification device for a diesel engine, characterized in that it is provided with a control means for switching a switching valve as shown in FIG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2293988U JPH0610117Y2 (en) | 1988-02-23 | 1988-02-23 | Exhaust gas purification device for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2293988U JPH0610117Y2 (en) | 1988-02-23 | 1988-02-23 | Exhaust gas purification device for diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01127916U true JPH01127916U (en) | 1989-08-31 |
| JPH0610117Y2 JPH0610117Y2 (en) | 1994-03-16 |
Family
ID=31241504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2293988U Expired - Lifetime JPH0610117Y2 (en) | 1988-02-23 | 1988-02-23 | Exhaust gas purification device for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610117Y2 (en) |
-
1988
- 1988-02-23 JP JP2293988U patent/JPH0610117Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0610117Y2 (en) | 1994-03-16 |
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