JPH0319418U - - Google Patents
Info
- Publication number
- JPH0319418U JPH0319418U JP7973889U JP7973889U JPH0319418U JP H0319418 U JPH0319418 U JP H0319418U JP 7973889 U JP7973889 U JP 7973889U JP 7973889 U JP7973889 U JP 7973889U JP H0319418 U JPH0319418 U JP H0319418U
- Authority
- JP
- Japan
- Prior art keywords
- trap filter
- stage temperature
- reburning
- particulate
- controlling
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 2
- 238000000746 purification Methods 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Description
第１図はこの考案の実施例を示す構成図、第２
図はそのＡ−Ａ断面図、第３図は同じくフイルタ
入口温度と遮へい板の制御特性図、第４，５図は
それぞれ効果の一例を示す燃焼除去率特性図、第
６図は同じくフイルタ入口温度の制御特性図、第
７図は他の実施例を示す構成図である。
１……トラツプフイルタ、２……排気通路、５
……バーナ、６……遮へい板、８……駆動装置、
９……コントロールユニツト。
Figure 1 is a configuration diagram showing an embodiment of this invention, Figure 2
The figure is a sectional view taken along the line A-A, Figure 3 is a control characteristic diagram of the filter inlet temperature and shielding plate, Figures 4 and 5 are combustion removal rate characteristic diagrams showing an example of the effect, and Figure 6 is the filter inlet temperature characteristic diagram. The temperature control characteristic diagram, FIG. 7, is a configuration diagram showing another embodiment. 1... Trap filter, 2... Exhaust passage, 5
... Burner, 6 ... Shielding plate, 8 ... Drive device,
9...Control unit.
Claims (1)
ツプフイルタと、その上流側に捕集パーテイキユ
レイトを再燃焼処理する補助燃焼装置を備えるデ
イーゼルエンジンの排気浄化装置において、トラ
ツプフイルタの前端面または後端面の中央部分を
開閉する遮へい板を設けると共に、トラツプフイ
ルタの入口温度を捕集パーテイキユレイトの再燃
焼処理前半で第一段階の温度に、後半で第一段階
よりも高い第二段階を温度に保つように補助燃焼
装置の作動を制御する手段と、同じく再燃焼処理
後半でのみ一時的に遮へい板を閉じるように制御
する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。 In a diesel engine exhaust purification system that includes a particulate trap filter in the engine exhaust passage and an auxiliary combustion device for reburning the collected particulates upstream of the particulate trap filter, the central part of the front or rear end surface of the trap filter can be opened and closed. In addition, an auxiliary combustion device is installed to maintain the inlet temperature of the trap filter at the first stage temperature during the first half of the reburning process of the collected particulate, and at the second stage temperature during the second half, which is higher than the first stage temperature. 1. An exhaust gas purification device for a diesel engine, characterized in that it is provided with a means for controlling the operation of the shield plate, and a means for controlling the shielding plate so as to temporarily close it only in the latter half of the reburning process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7973889U JPH0619788Y2 (en) | 1989-07-06 | 1989-07-06 | Exhaust gas purification device for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7973889U JPH0619788Y2 (en) | 1989-07-06 | 1989-07-06 | Exhaust gas purification device for diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0319418U true JPH0319418U (en) | 1991-02-26 |
| JPH0619788Y2 JPH0619788Y2 (en) | 1994-05-25 |
Family
ID=31624169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7973889U Expired - Lifetime JPH0619788Y2 (en) | 1989-07-06 | 1989-07-06 | Exhaust gas purification device for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619788Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012246895A (en) * | 2011-05-31 | 2012-12-13 | Isuzu Motors Ltd | Exhaust gas cleaning system and exhaust gas cleaning method |
-
1989
- 1989-07-06 JP JP7973889U patent/JPH0619788Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012246895A (en) * | 2011-05-31 | 2012-12-13 | Isuzu Motors Ltd | Exhaust gas cleaning system and exhaust gas cleaning method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619788Y2 (en) | 1994-05-25 |
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