JPS6287118U - - Google Patents
Info
- Publication number
- JPS6287118U JPS6287118U JP17736585U JP17736585U JPS6287118U JP S6287118 U JPS6287118 U JP S6287118U JP 17736585 U JP17736585 U JP 17736585U JP 17736585 U JP17736585 U JP 17736585U JP S6287118 U JPS6287118 U JP S6287118U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- exhaust gas
- trap
- catalyst
- outlet
- 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
- 239000007789 gas Substances 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 4
- 238000001514 detection method Methods 0.000 claims 3
- 238000002485 combustion reaction Methods 0.000 claims 2
- 230000003197 catalytic effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 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
考案の一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図は排気微粒子処理の従来例
を示す構成図、第５図は排気温度、捕集量及び再
燃焼能力との関係を示す図である。
１２…排気通路、１３…触媒付トラツプ、１６
…入口側排気温度センサ、１７…出口側排気温度
センサ、１８…制御装置、１９…酸素センサ、２
０…電動式空気ポンプ、２１…空気供給通路。
Fig. 1 is a diagram corresponding to the claims of the present invention, Fig. 2 is a block diagram showing an embodiment of the present invention, Fig. 3 is a flowchart of the same, and Fig. 4 is a block diagram showing a conventional example of exhaust particulate treatment. FIG. 5 is a diagram showing the relationship between exhaust temperature, amount of collection, and reburning ability. 12... Exhaust passage, 13... Trap with catalyst, 16
...Inlet side exhaust gas temperature sensor, 17...Outlet side exhaust temperature sensor, 18...Control device, 19...Oxygen sensor, 2
0...Electric air pump, 21...Air supply passage.
Claims (1)
媒付トラツプを備え捕集された排気微粒子を主と
して触媒作用により燃焼する内燃機関の排気微粒
子処理装置において、前記触媒付トラツプ入口部
の排気温度を検出する入口部排気温度検出手段と
、前記触媒付トラツプ出口部の排気温度を検出す
る出口部排気温度検出手段と、排気中の酸素濃度
を検出する酸素濃度検出手段と、前記触媒付トラ
ツプに空気を供給する空気供給装置と、検出され
た出口部の排気温度が入口部の排気温度より所定
値以上高いか否かを判定する判定手段と、前記出
口部の排気温度が前記入口部の排気温度より所定
値以上高いと判定されかつその高い状態が所定時
間維持されたとき若しくは検出された排気の酸素
濃度が所定値以下のときに前記空気供給装置を作
動させる空気制御装手段と、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。 In an exhaust particulate treatment device for an internal combustion engine that includes a trap with a catalyst in the exhaust passage of the engine to collect particulates in the exhaust gas and burns the collected particulates in the exhaust mainly through catalytic action, the exhaust temperature at the inlet of the trap with the catalyst is controlled. an inlet exhaust gas temperature detection means for detecting the exhaust gas temperature at the outlet of the trap with a catalyst; an outlet exhaust temperature detection means for detecting the exhaust gas temperature at the outlet of the trap with a catalyst; an oxygen concentration detection means for detecting the oxygen concentration in the exhaust; an air supply device for supplying air, a determining means for determining whether the detected exhaust gas temperature at the outlet is higher than the exhaust gas temperature at the inlet by a predetermined value or more; an air control device that operates the air supply device when the oxygen concentration of the exhaust gas is determined to be higher than a predetermined value and the high state is maintained for a predetermined time, or when the detected oxygen concentration of the exhaust gas is below a predetermined value. An exhaust particulate treatment device for an internal combustion engine, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17736585U JPS6287118U (en) | 1985-11-20 | 1985-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17736585U JPS6287118U (en) | 1985-11-20 | 1985-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6287118U true JPS6287118U (en) | 1987-06-03 |
Family
ID=31118500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17736585U Pending JPS6287118U (en) | 1985-11-20 | 1985-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6287118U (en) |
-
1985
- 1985-11-20 JP JP17736585U patent/JPS6287118U/ja active Pending