JPH01111122U - - Google Patents
Info
- Publication number
- JPH01111122U JPH01111122U JP532888U JP532888U JPH01111122U JP H01111122 U JPH01111122 U JP H01111122U JP 532888 U JP532888 U JP 532888U JP 532888 U JP532888 U JP 532888U JP H01111122 U JPH01111122 U JP H01111122U
- Authority
- JP
- Japan
- Prior art keywords
- filter
- exhaust gas
- passage
- flow
- switching means
- 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
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 claims 2
- 238000000746 purification Methods 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Description
第１図は本考案の一実施例を示す断面図、第２
図ａはパテイキユレート捕集時におけるフイルタ
を示す断面図、第２図ｂは従来の再生時における
フイルタを示す断面図、第３図は負圧調整弁を示
す断面図、第４図はフイルタ再生の制御ルーチン
の一例のフローチヤート、第５図はフイルタ先生
の制御ルーチンの他の例のフローチヤート、第６
図はフイルタ内における排気ガス流速の変化を示
すグラフ、第７図はフイルタ内における排気ガス
流速の向きの定義を示す図である。
１５……フイルタ、３１，３２……開閉弁、４
１……ヒータ、５１……制御回路。
Fig. 1 is a sectional view showing one embodiment of the present invention;
Figure a is a cross-sectional view of the filter during particulate collection, Figure 2b is a cross-sectional view of the filter during conventional regeneration, Figure 3 is a cross-sectional view of the negative pressure regulating valve, and Figure 4 is a cross-sectional view of the filter during filter regeneration. FIG. 5 is a flowchart of an example of the control routine, and FIG. 6 is a flowchart of another example of Mr. Filter's control routine.
The figure is a graph showing changes in the exhaust gas flow velocity within the filter, and FIG. 7 is a diagram showing the definition of the direction of the exhaust gas flow velocity within the filter. 15...Filter, 31, 32...Opening/closing valve, 4
1... Heater, 51... Control circuit.
Claims (1)
ルタと、パテイキユレート捕集時、上記フイルタ
内において排気ガスを第１の方向に沿つて流動さ
せる第１の通路手段と、上記フイルタの再生時、
上記フイルタ内において排気ガスを上記第１の方
向とは反対の第２の方向に沿つて流動させる第２
の通路手段と、上記フイルタに対して上記第２の
方向の上流側に配設され、再生時、フイルタに捕
集されたパテイキユレートを着火する着火手段と
、排気ガスの流動方向を第１および第２の方向の
間において切換える通路切換手段とを備え、この
通路切換手段は、上記フイルタの再生開始時、排
気ガスの流動方向を第１の方向から第２の方向に
徐々に切換える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 filter for collecting particulate matter in exhaust gas; a first passage means for causing the exhaust gas to flow in a first direction in the filter when collecting the particulate matter; and at the time of regenerating the filter;
A second filter that causes exhaust gas to flow in the filter along a second direction opposite to the first direction.
a passage means disposed upstream of the filter in the second direction and igniting the particulate collected by the filter during regeneration; and a passage switching means for switching between two directions, and the passage switching means is characterized in that the passage switching means gradually switches the flow direction of the exhaust gas from the first direction to the second direction when the filter starts to be regenerated. Diesel engine exhaust purification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP532888U JPH0610125Y2 (en) | 1988-01-21 | 1988-01-21 | Exhaust gas purification device for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP532888U JPH0610125Y2 (en) | 1988-01-21 | 1988-01-21 | Exhaust gas purification device for diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01111122U true JPH01111122U (en) | 1989-07-26 |
| JPH0610125Y2 JPH0610125Y2 (en) | 1994-03-16 |
Family
ID=31208608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP532888U Expired - Lifetime JPH0610125Y2 (en) | 1988-01-21 | 1988-01-21 | Exhaust gas purification device for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610125Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002097926A (en) * | 2000-07-21 | 2002-04-05 | Toyota Motor Corp | Exhaust emission control device for internal combustion engine |
-
1988
- 1988-01-21 JP JP532888U patent/JPH0610125Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002097926A (en) * | 2000-07-21 | 2002-04-05 | Toyota Motor Corp | Exhaust emission control device for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0610125Y2 (en) | 1994-03-16 |
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