JPH0280711U - - Google Patents
Info
- Publication number
- JPH0280711U JPH0280711U JP15903488U JP15903488U JPH0280711U JP H0280711 U JPH0280711 U JP H0280711U JP 15903488 U JP15903488 U JP 15903488U JP 15903488 U JP15903488 U JP 15903488U JP H0280711 U JPH0280711 U JP H0280711U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- filter
- temperature
- regeneration operation
- heating 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 6
- 238000011069 regeneration method Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims 4
- 238000001514 detection method Methods 0.000 claims 2
- 239000013618 particulate matter Substances 0.000 claims 2
- 230000001172 regenerating effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を適用した排気系の
一例の概略構成図、第２図は再生時期制御のフロ
ーチヤート図、第３図はフイルタ入口排気ガス温
度とフイルタ再生の遅延時間との関係を示したグ
ラフ、第４図は高速・高負荷運転状態から減速し
た場合のフイルタ入口排気ガス温度とフイルタ温
度との関係を示す図である。
１１……デイーゼルエンジン、１２……排気通
路、１３……フイルタ、１４，１５……開閉制御
弁、１８……ＥＣＵ、２０……電気ヒータ、２５
……排気ガス温度センサ。
Fig. 1 is a schematic configuration diagram of an example of an exhaust system to which an embodiment of the present invention is applied, Fig. 2 is a flowchart of regeneration timing control, and Fig. 3 is a diagram showing the relationship between the exhaust gas temperature at the filter inlet and the delay time of filter regeneration. FIG. 4 is a graph showing the relationship between the filter inlet exhaust gas temperature and the filter temperature when decelerating from a high speed/high load operating state. 11... Diesel engine, 12... Exhaust passage, 13... Filter, 14, 15... Opening/closing control valve, 18... ECU, 20... Electric heater, 25
...Exhaust gas temperature sensor.
Claims (1)
ガス中のパテイキユレートを捕集するフイルタと
、該フイルタに捕集されたパテイキユレートを再
生加熱する加熱手段と、該加熱手段の再生作動の
開始を検出する再生作動開始手段と、前記フイル
タの排気上流側の入口排気ガス温度を検出するフ
イルタ入口排気ガス温度検出手段とを備えるデイ
ーゼル排気微粒子除去装置において、前記フイル
タ入口排気ガス温度検出手段から検出された温度
が再生臨界温度以上から低下した時には前記加熱
手段を遅延させる再生作動遅延手段を設けたこと
を特徴とするデイーゼル排気微粒子除去装置。 A filter provided in the exhaust passage of a diesel engine to collect particulate matter in the exhaust gas, a heating means for regenerating and heating the particulate matter collected by the filter, and a regeneration operation start for detecting the start of the regeneration operation of the heating means. and a filter inlet exhaust gas temperature detection means for detecting an inlet exhaust gas temperature on the upstream side of the exhaust gas of the filter, wherein the temperature detected by the filter inlet exhaust gas temperature detection means is determined to be regeneration critical. A diesel exhaust particulate removal device characterized in that a regeneration operation delay means is provided for delaying the heating means when the temperature drops from above the temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15903488U JPH0618029Y2 (en) | 1988-12-07 | 1988-12-07 | Diesel exhaust particulate removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15903488U JPH0618029Y2 (en) | 1988-12-07 | 1988-12-07 | Diesel exhaust particulate removal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0280711U true JPH0280711U (en) | 1990-06-21 |
| JPH0618029Y2 JPH0618029Y2 (en) | 1994-05-11 |
Family
ID=31439887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15903488U Expired - Lifetime JPH0618029Y2 (en) | 1988-12-07 | 1988-12-07 | Diesel exhaust particulate removal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618029Y2 (en) |
-
1988
- 1988-12-07 JP JP15903488U patent/JPH0618029Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0618029Y2 (en) | 1994-05-11 |