JPH01119819U - - Google Patents
Info
- Publication number
- JPH01119819U JPH01119819U JP1575288U JP1575288U JPH01119819U JP H01119819 U JPH01119819 U JP H01119819U JP 1575288 U JP1575288 U JP 1575288U JP 1575288 U JP1575288 U JP 1575288U JP H01119819 U JPH01119819 U JP H01119819U
- Authority
- JP
- Japan
- Prior art keywords
- trap material
- exhaust
- passage
- engine
- valve
- 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
- 238000000746 purification Methods 0.000 claims description 2
- 230000008929 regeneration Effects 0.000 claims 2
- 238000011069 regeneration method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 230000001172 regenerating effect Effects 0.000 description 1
Description
第１図は第２図の要部構成図、第２図は本考案
によるデイーゼルエンジンの排気微粒子浄化装置
を示す構成図、第３図はトラツプ材の再生処理の
ための制御のフローチヤート、第４図は弁作動手
段による開閉弁の開閉作動状態を示す図、第５図
はもう１つの実施例の第３図は同様のフローチヤ
ート、第６図は別の弁作動手段による開閉弁の開
閉作動状態を示す第４図と同様の図である。
２８…排気本管、３０…バイパス管、３２…ト
ラツプ材、３４…電気ヒータ、３８…通路開閉弁
、４０…アクチユエータ、４４…電磁弁。
Fig. 1 is a block diagram of the main parts of Fig. 2, Fig. 2 is a block diagram showing a diesel engine exhaust particulate purification device according to the present invention, Fig. 3 is a flowchart of control for regenerating trap material, Fig. 4 is a diagram showing the opening/closing operation state of the on-off valve by the valve actuation means, Fig. 5 is a similar flow chart of another embodiment, and Fig. 6 is a diagram showing the opening/closing operation of the on-off valve by another valve actuation means. FIG. 4 is a diagram similar to FIG. 4 showing an operating state. 28... Exhaust main pipe, 30... Bypass pipe, 32... Trap material, 34... Electric heater, 38... Passage opening/closing valve, 40... Actuator, 44... Solenoid valve.
Claims (1)
を捕集するトラツプ材とこのトラツプ材の再生の
ために捕集された排気微粒子を燃焼させるための
着火手段とを設け、該排気通路に該トラツプ材バ
イパスするバイパス通路を連結するとともにトラ
ツプ材側と該バイパス通路側へ排気ガス流路を切
換える通路切換弁を配置し、さらに、エンジンの
運転状態から前記トラツプ材を再生させるべき再
生時期を判定するトラツプ材再生時期判定手段と
、前記通路開閉弁のための弁作動手段とを有し、
該弁作動手段はトラツプ材再生時及びエンジン停
止時に前記通路切換弁を排気微粒子の捕集時と逆
の位置へ作動させるようにしたことを特徴とする
デイーゼルエンジンの排気微粒子浄化装置。 A trap material for collecting exhaust particulates and an ignition means for burning the collected exhaust particulates in order to regenerate the trap material are provided in the exhaust passage of the diesel engine, and the trap material is bypassed in the exhaust passage. Trap material regeneration which connects the bypass passages and switches the exhaust gas flow path between the trap material side and the bypass passage side, and further determines the regeneration timing at which the trap material should be regenerated based on the operating condition of the engine. comprising a timing determining means and a valve operating means for the passage opening/closing valve,
An exhaust particulate purification device for a diesel engine, characterized in that the valve operating means operates the passage switching valve to a position opposite to that when collecting exhaust particulates when the trap material is regenerated and when the engine is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1575288U JPH01119819U (en) | 1988-02-10 | 1988-02-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1575288U JPH01119819U (en) | 1988-02-10 | 1988-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01119819U true JPH01119819U (en) | 1989-08-14 |
Family
ID=31228075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1575288U Pending JPH01119819U (en) | 1988-02-10 | 1988-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01119819U (en) |
-
1988
- 1988-02-10 JP JP1575288U patent/JPH01119819U/ja active Pending
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