JPS63132819U - - Google Patents
Info
- Publication number
- JPS63132819U JPS63132819U JP2381487U JP2381487U JPS63132819U JP S63132819 U JPS63132819 U JP S63132819U JP 2381487 U JP2381487 U JP 2381487U JP 2381487 U JP2381487 U JP 2381487U JP S63132819 U JPS63132819 U JP S63132819U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- temperature
- passage
- collection member
- branch
- 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
- 239000003054 catalyst Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Description
第１〜８図は本考案の一実施例としてのデイー
ゼルエンジン用排出ガス後処理装置を示すもので
、第１図はその全体構成を示す模式図、第２図は
その制御系を示すブロツク図、第３図はその制御
要領を説明するためのフローチヤート、第４〜８
図はいずれもその作用を説明するためのグラフで
ある。
１……デイーゼルエンジン、１ａ……燃焼室、
２……給気系、２ａ……給気通路、３……エアク
リーナ、４……排気系、４ａ，４ｄ……共通排気
通路、４ｂ……第１の分岐排気通路、４ｃ……第
２の分岐排気通路、５ａ……高温用触媒付き捕集
部材としてのデイーゼルパテイキユレートトラツ
プ、５ｂ……低温用触媒付き捕集部材としてのデ
イーゼルパテイキユレートトラツプ、６，６′…
…接続部、７……マフラー、８……開閉弁、９…
…アクチユエータ、１０……制御手段（ＥＣＵ）
、１０ａ〜１０ｆ……第１〜第６の制御部、１１
……センサ群、１１ａ……運転領域センサ、１１
ｂ，１１ｃ……再生時期検出手段を構成する圧力
センサ、１１ｄ……エンジン回転数センサ、１１
ｅ……出力トルク検出手段（負荷センサ）、１１
ｆ……排温センサ、１１ｇ……ラツク位置センサ
、１２……燃料噴射ポンプ、１３……ピストン、
１４……燃料噴射装置（インジエクタ）、１５…
…吸気弁、１６……排気弁、１７……再生手段、
１７ａ……吸気絞り機構、１７ｂ……排気絞り機
構、１７ｃ……燃料噴射時期遅角機構（タイミン
グリタード機構）、１７ｄ……燃料噴射時期進角
機構（タイミングアドバンス機構）、１７ｅ……
燃料噴射時期制御装置、１８……メモリ、１９ａ
〜１９ｄ……圧力検出通路、２０……クランク軸
。
Figures 1 to 8 show an exhaust gas after-treatment device for a diesel engine as an embodiment of the present invention. Figure 1 is a schematic diagram showing its overall configuration, and Figure 2 is a block diagram showing its control system. , Fig. 3 is a flowchart for explaining the control procedure, Nos. 4 to 8.
All figures are graphs for explaining the effects. 1... Diesel engine, 1a... Combustion chamber,
2... Air supply system, 2a... Air supply passage, 3... Air cleaner, 4... Exhaust system, 4a, 4d... Common exhaust passage, 4b... First branch exhaust passage, 4c... Second Branch exhaust passage, 5a... Diesel particulate trap as a collecting member with catalyst for high temperature, 5b... Diesel particulate trap as collecting member with catalyst for low temperature, 6, 6'...
... Connection part, 7 ... Muffler, 8 ... Opening/closing valve, 9 ...
...actuator, 10...control means (ECU)
, 10a to 10f...first to sixth control units, 11
...Sensor group, 11a...Driving area sensor, 11
b, 11c...pressure sensor constituting regeneration timing detection means, 11d...engine rotation speed sensor, 11
e... Output torque detection means (load sensor), 11
f...Exhaust temperature sensor, 11g...Rack position sensor, 12...Fuel injection pump, 13...Piston,
14...Fuel injection device (injector), 15...
...Intake valve, 16...Exhaust valve, 17...Regeneration means,
17a...Intake throttle mechanism, 17b...Exhaust throttle mechanism, 17c...Fuel injection timing retard mechanism (timing retard mechanism), 17d...Fuel injection timing advance mechanism (timing advance mechanism), 17e...
Fuel injection timing control device, 18... memory, 19a
~19d...Pressure detection passage, 20...Crankshaft.
Claims (1)
室から排出されるデイーゼルパテイキユレートを
捕集するための捕集部材をそなえ、上記排気系が
、上記燃焼室からの排気を排出するための共通排
気通路と、同共通排気通路の下流側端部における
接続部に接続される第１および第２の分岐排気通
路とをそなえて構成されるとともに、上記捕集部
材が、上記第１の分岐排気通路に介挿された高温
用触媒付き捕集部材と、上記第２の分岐排気通路
に介挿された低温用触媒付き捕集部材とからなり
、上記接続部から上記低温用触媒付き捕集部材よ
りも上流側の上記第２の分岐排気通路までの間に
介挿されて上記第２の分岐排気通路を閉鎖するた
めの開閉弁と、同開閉弁を開閉駆動するためのア
クチユエータとが設けられるとともに、上記開閉
弁から上記燃焼室までの間に配設されて排気温度
を検出するための温度センサと、同温度センサか
らの検出信号に基づき排気温度が所定温度よりも
高いとき上記アクチユエータへ閉鎖制御信号を出
力する制御手段とが設けられたことを特徴とする
、デイーゼルエンジン用排出ガス後処理装置。 A collection member is inserted into the exhaust system of the diesel engine to collect diesel particulates discharged from the combustion chamber, and the exhaust system has a common exhaust for discharging the exhaust gas from the combustion chamber. a passage, and first and second branch exhaust passages connected to a connecting portion at the downstream end of the common exhaust passage, and the collection member is configured to A collection member with a catalyst for high temperature is inserted into the second branch exhaust passage, and a collection member with a catalyst for low temperature is inserted in the second branch exhaust passage. An on-off valve is inserted between the above-mentioned second branch exhaust passage on the upstream side and closes the second branch exhaust passage, and an actuator for driving the on-off valve to open and close is provided. , a temperature sensor disposed between the opening/closing valve and the combustion chamber to detect the exhaust temperature; and a closing control for the actuator when the exhaust temperature is higher than a predetermined temperature based on a detection signal from the temperature sensor. An exhaust gas after-treatment device for a diesel engine, characterized in that it is provided with a control means for outputting a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987023814U JPH0744730Y2 (en) | 1987-02-20 | 1987-02-20 | Exhaust gas aftertreatment device for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987023814U JPH0744730Y2 (en) | 1987-02-20 | 1987-02-20 | Exhaust gas aftertreatment device for diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63132819U true JPS63132819U (en) | 1988-08-30 |
| JPH0744730Y2 JPH0744730Y2 (en) | 1995-10-11 |
Family
ID=30822462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987023814U Expired - Lifetime JPH0744730Y2 (en) | 1987-02-20 | 1987-02-20 | Exhaust gas aftertreatment device for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0744730Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005069238A (en) * | 2004-12-13 | 2005-03-17 | Akio Ishida | Exhaust emission control system for engine |
| JP2009504982A (en) * | 2005-08-15 | 2009-02-05 | エミテック ゲゼルシヤフト フユア エミツシオンス テクノロギー ミツト ベシユレンクテル ハフツング | Method and apparatus for treating exhaust gas from an internal combustion engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6231710U (en) * | 1985-08-09 | 1987-02-25 | ||
| JPS62121820A (en) * | 1985-11-20 | 1987-06-03 | Nissan Motor Co Ltd | Exhaust particulate treating equipment for internal combustion engine |
| JPS63119817U (en) * | 1987-01-29 | 1988-08-03 |
-
1987
- 1987-02-20 JP JP1987023814U patent/JPH0744730Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6231710U (en) * | 1985-08-09 | 1987-02-25 | ||
| JPS62121820A (en) * | 1985-11-20 | 1987-06-03 | Nissan Motor Co Ltd | Exhaust particulate treating equipment for internal combustion engine |
| JPS63119817U (en) * | 1987-01-29 | 1988-08-03 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005069238A (en) * | 2004-12-13 | 2005-03-17 | Akio Ishida | Exhaust emission control system for engine |
| JP2009504982A (en) * | 2005-08-15 | 2009-02-05 | エミテック ゲゼルシヤフト フユア エミツシオンス テクノロギー ミツト ベシユレンクテル ハフツング | Method and apparatus for treating exhaust gas from an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0744730Y2 (en) | 1995-10-11 |
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