JPS63104621U - - Google Patents
Info
- Publication number
- JPS63104621U JPS63104621U JP19871186U JP19871186U JPS63104621U JP S63104621 U JPS63104621 U JP S63104621U JP 19871186 U JP19871186 U JP 19871186U JP 19871186 U JP19871186 U JP 19871186U JP S63104621 U JPS63104621 U JP S63104621U
- Authority
- JP
- Japan
- Prior art keywords
- catalytic converter
- diesel engine
- temperature
- nitrogen oxide
- removal mechanism
- 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
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 15
- 230000003197 catalytic effect Effects 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims 6
- 239000003054 catalyst Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Description
第１図は本考案によるデイーゼルエンジンの窒
素酸化物除去機構の一実施例のブロツク図である
。
１……デイーゼルエンジン、２……排気管、３
……切換弁、４……分岐管、５……触媒コンバー
タ、５１……ヒータ、５２……温度センサ、６…
…ＮＨ３タンク、９……エアタンク。
FIG. 1 is a block diagram of an embodiment of a nitrogen oxide removal mechanism for a diesel engine according to the present invention. 1... Diesel engine, 2... Exhaust pipe, 3
...Switching valve, 4... Branch pipe, 5... Catalytic converter, 51... Heater, 52... Temperature sensor, 6...
...NH 3 tanks, 9...air tanks.
Claims (1)
を還元するためのＮＨ３ガスを添加するためのＮ
Ｈ３添加手段と、前記ＮＨ３を貯蔵する手段と、
前記ＮＨ３が添加された排気ガス中のＮＯｘを還
元するためのＴｉｏ２系触媒を備えた触媒コンバ
ータとを備えたデイーゼルエンジンの窒素酸化物
除去機構において、前記触媒コンバータは前記触
媒コンバータ内の温度を制御するためのヒータを
有していることを特徴とするデイーゼルエンジン
の窒素酸化物除去機構。 (2) 前記触媒コンバータおよび／または排気管
には温度センサが備えられており、触媒コンバー
タおよび／または排気ガスの温度が２００℃以下
のときには、前記ヒータを作動させることを特徴
とする実用新案登録請求の範囲第１項によるデイ
ーゼルエンジンの窒素酸化物除去機構。 (3) 前記触媒コンバータおよび／または排気管
には温度センサが備えられており、触媒コンバー
タおよび／または排気ガスの温度が２００〜５０
０℃の範囲を逸脱したとき、前記ＮＨ３ガスの供
給を停止できるようにしたことを特徴とする実用
新案登録請求の範囲第１項または第２項記載のデ
イーゼルエンジンの窒素酸化物除去機構。[Scope of claim for utility model registration] (1) NOx in exhaust gas of diesel engine
N to add NH3 gas to reduce
means for adding H3 ; means for storing said NH3 ;
In the nitrogen oxide removal mechanism for a diesel engine, the catalytic converter includes a catalytic converter equipped with a Tio 2 catalyst for reducing NOx in the exhaust gas to which NH 3 is added, wherein the catalytic converter is configured to reduce the temperature within the catalytic converter. A nitrogen oxide removal mechanism for a diesel engine, characterized by having a heater for controlling. (2) Registration of a utility model characterized in that the catalytic converter and/or the exhaust pipe is equipped with a temperature sensor, and the heater is activated when the temperature of the catalytic converter and/or exhaust gas is 200°C or less. A nitrogen oxide removal mechanism for a diesel engine according to claim 1. (3) The catalytic converter and/or the exhaust pipe is equipped with a temperature sensor, and the temperature of the catalytic converter and/or the exhaust gas is between 200 and 50°C.
The nitrogen oxide removal mechanism for a diesel engine according to claim 1 or 2, characterized in that the supply of the NH 3 gas can be stopped when the temperature exceeds a range of 0°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19871186U JPS63104621U (en) | 1986-12-26 | 1986-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19871186U JPS63104621U (en) | 1986-12-26 | 1986-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63104621U true JPS63104621U (en) | 1988-07-06 |
Family
ID=31159652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19871186U Pending JPS63104621U (en) | 1986-12-26 | 1986-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63104621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0693839A (en) * | 1992-09-10 | 1994-04-05 | Hitachi Ltd | Exhaust emission control device for internal combustion engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5593917A (en) * | 1979-01-08 | 1980-07-16 | Unitika Ltd | Method of purifying exhaust gas of internal combustion engine |
| JPS5817644A (en) * | 1981-07-24 | 1983-02-01 | Hitachi Ltd | stem |
-
1986
- 1986-12-26 JP JP19871186U patent/JPS63104621U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5593917A (en) * | 1979-01-08 | 1980-07-16 | Unitika Ltd | Method of purifying exhaust gas of internal combustion engine |
| JPS5817644A (en) * | 1981-07-24 | 1983-02-01 | Hitachi Ltd | stem |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0693839A (en) * | 1992-09-10 | 1994-04-05 | Hitachi Ltd | Exhaust emission control device for internal combustion engine |
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