JPH0191017U - - Google Patents
Info
- Publication number
- JPH0191017U JPH0191017U JP18598087U JP18598087U JPH0191017U JP H0191017 U JPH0191017 U JP H0191017U JP 18598087 U JP18598087 U JP 18598087U JP 18598087 U JP18598087 U JP 18598087U JP H0191017 U JPH0191017 U JP H0191017U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- engine
- white smoke
- temperature
- detecting
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims 5
- 238000002485 combustion reaction Methods 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 3
- 239000000498 cooling water Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 1
Description
第１図は本考案のクレーム対応図、第２図は本
考案の第１実施例を示す構成図、第３図は同上の
フローチヤート、第４図は同上の作用を説明する
ための図、第５図は本考案の第２実施例を示すフ
ローチヤート、第６図は排気微粒子処理装置の従
来例を示す構成図である。
２２……排気通路、２４……触媒付トラツプ、
２５……排気バイパス通路、２６……切換弁、２
８……ダイヤフラムアクチユエータ、２９……三
方電磁弁、３０……制御装置、３１……排気温度
センサ、３２……回転速度センサ、３４……負荷
センサ、３５……水温センサ。
Fig. 1 is a diagram corresponding to claims of the present invention, Fig. 2 is a configuration diagram showing a first embodiment of the invention, Fig. 3 is a flowchart of the same, Fig. 4 is a diagram for explaining the operation of the same, FIG. 5 is a flowchart showing a second embodiment of the present invention, and FIG. 6 is a configuration diagram showing a conventional example of an exhaust particulate processing device. 22... Exhaust passage, 24... Trap with catalyst,
25...Exhaust bypass passage, 26...Switching valve, 2
8... Diaphragm actuator, 29... Three-way solenoid valve, 30... Control device, 31... Exhaust temperature sensor, 32... Rotation speed sensor, 34... Load sensor, 35... Water temperature sensor.
Claims (1)
装置を、介装するようにした内燃機関の排気微粒
子処理装置において、前記捕集装置をバイパスす
る排気バイパス通路と、機関の運転状態を検出す
る運転状態検出手段と、機関の減速運転状態を検
出する減速運転状態検出手段と、排気温度を検出
する排気温度検出手段と、機関の冷却水温度を検
出する水温検出手段と、検出された実際の運転状
態が白煙が発生する白煙発生運転領域か否かを判
定する白煙発生領域判定手段と、検出された排気
温度が排気微粒子の再燃焼に適した所定温度以上
のときと、検出された排気温度が前記所定温度未
満のときには前記排気温度が前記白煙再燃焼に適
した所定温度以上でかつ減速運転のときと、検出
された冷却水温度が所定値以下でかつ運転状態が
前記白煙発生運転領域にあるときとに、前記捕集
装置に排気を流通させる一方、前記運転条件以外
の運転状態のときに前記排気バイパス通路に排気
を流通させるべく、排気流れを切換える弁装置と
、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。 In an exhaust particulate treatment device for an internal combustion engine in which a collection device for collecting exhaust particulates is interposed in the exhaust passage of the engine, an exhaust bypass passage that bypasses the collection device and an operating state of the engine are detected. a deceleration operation state detection means for detecting the deceleration operation state of the engine; an exhaust temperature detection means for detecting the exhaust temperature; a water temperature detection means for detecting the engine cooling water temperature; white smoke generation region determination means for determining whether or not the operating state of the is in a white smoke generation operation region where white smoke is generated; When the detected exhaust temperature is less than the predetermined temperature, the exhaust temperature is equal to or higher than the predetermined temperature suitable for white smoke re-combustion and deceleration operation is in progress, and when the detected cooling water temperature is below the predetermined value and the operating state is a valve device that switches the flow of exhaust gas so that the exhaust gas flows through the collection device when the operation is in a white smoke generation operation region, and the exhaust gas flows through the exhaust bypass passage when the operation condition is other than the operation condition; An exhaust particulate treatment device for an internal combustion engine, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18598087U JPH0191017U (en) | 1987-12-08 | 1987-12-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18598087U JPH0191017U (en) | 1987-12-08 | 1987-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0191017U true JPH0191017U (en) | 1989-06-15 |
Family
ID=31477233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18598087U Pending JPH0191017U (en) | 1987-12-08 | 1987-12-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0191017U (en) |
-
1987
- 1987-12-08 JP JP18598087U patent/JPH0191017U/ja active Pending
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