JPS61147318U - - Google Patents
Info
- Publication number
- JPS61147318U JPS61147318U JP3026885U JP3026885U JPS61147318U JP S61147318 U JPS61147318 U JP S61147318U JP 3026885 U JP3026885 U JP 3026885U JP 3026885 U JP3026885 U JP 3026885U JP S61147318 U JPS61147318 U JP S61147318U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- exhaust gas
- recirculation device
- operating state
- trap
- 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 description 4
- 238000001514 detection method Methods 0.000 claims 4
- 230000003197 catalytic effect Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Exhaust Gas After Treatment (AREA)
Description
第１図は本考案の一実施例を示す全体図、第２
図は排気圧力と排気圧力センサの出力電圧との関
係を示す図、第３図はトラツプ上流の排気圧力Ｐ
１とトラツプ前後差圧との関係を示す図、第４図
はＥＧＲ率と排気温度の上昇代との関係を示す図
、第５図は従来例を示す全体図である。
４……ＥＧＲ通路、５……ＥＧＲ制御弁、６…
…第１ダイアフラム装置、７……吸気絞弁、８…
…第２ダイアフラム装置、２１……触媒付トラツ
プ、２３……制御装置、２４ａ……第２ＥＧＲ通
路、２４……第２ＥＧＲ制御弁、２５……第３ダ
イアフラム装置。
Figure 1 is an overall view showing one embodiment of the present invention;
The figure shows the relationship between the exhaust pressure and the output voltage of the exhaust pressure sensor. Figure 3 shows the exhaust pressure P upstream of the trap.
1 and the differential pressure across the trap, FIG. 4 is a diagram showing the relationship between the EGR rate and the increase in exhaust temperature, and FIG. 5 is an overall diagram showing a conventional example. 4...EGR passage, 5...EGR control valve, 6...
...First diaphragm device, 7... Intake throttle valve, 8...
... second diaphragm device, 21 ... trap with catalyst, 23 ... control device, 24a ... second EGR passage, 24 ... second EGR control valve, 25 ... third diaphragm device.
Claims (1)
触媒付トラツプと、該触媒付トラツプの排気微粒
子捕集量を検出する捕集量検出手段と、該捕集量
検出手段の検出信号に基づいて触媒付トラツプの
再生時期を判定する判定手段と、排気の一部を還
流する第１排気還流装置と、排気の一部を還流す
る第２排気還流装置と、機関の運転状態を検出す
る運転状態検出手段と、検出された運転状態に基
づいて第１排気還流装置を作動制御し排気還流率
を制御する第１制御手段と、排気温度が前記触媒
の不活性領域となる運転状態を検出する不活性領
域検出手段と、該運転状態でかつ触媒付トラツプ
の再生時期と判定されたときに前記第１排気還流
装置と第２排気還流装置とを作動制御する第２制
御手段とを備えたことを特徴とする内燃機関の排
気微粒子処理装置。 A trap with a catalyst installed in an exhaust passage to collect particulates in the exhaust gas, a trapped amount detection means for detecting the amount of collected exhaust particulates in the trap with the catalyst, and a detection signal of the trapped amount detection means. a first exhaust recirculation device that recirculates a portion of the exhaust gas; a second exhaust recirculation device that recirculates a portion of the exhaust gas; and an operation system that detects the operating state of the engine. a state detection means; a first control means for controlling the operation of the first exhaust gas recirculation device and controlling the exhaust recirculation rate based on the detected operating state; and detecting an operating state in which the exhaust gas temperature is in an inactive region of the catalyst. and a second control means for controlling the operation of the first exhaust gas recirculation device and the second exhaust gas recirculation device when it is determined that it is time to regenerate the catalytic trap in the operating state. An exhaust particulate treatment device for an internal combustion engine, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3026885U JPS61147318U (en) | 1985-03-05 | 1985-03-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3026885U JPS61147318U (en) | 1985-03-05 | 1985-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61147318U true JPS61147318U (en) | 1986-09-11 |
Family
ID=30529818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3026885U Pending JPS61147318U (en) | 1985-03-05 | 1985-03-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61147318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63138457U (en) * | 1987-03-04 | 1988-09-12 |
-
1985
- 1985-03-05 JP JP3026885U patent/JPS61147318U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63138457U (en) * | 1987-03-04 | 1988-09-12 |
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