JPS63297722A - Regenerative method for exhaust purifier of diesel engine - Google Patents
Regenerative method for exhaust purifier of diesel engineInfo
- Publication number
- JPS63297722A JPS63297722A JP62135427A JP13542787A JPS63297722A JP S63297722 A JPS63297722 A JP S63297722A JP 62135427 A JP62135427 A JP 62135427A JP 13542787 A JP13542787 A JP 13542787A JP S63297722 A JPS63297722 A JP S63297722A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- exhaust gas
- filter
- temperature
- actuator
- 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
- 238000000034 method Methods 0.000 title claims description 6
- 230000001172 regenerating effect Effects 0.000 title claims description 4
- 239000002245 particle Substances 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 230000008929 regeneration Effects 0.000 abstract description 15
- 238000011069 regeneration method Methods 0.000 abstract description 15
- 239000000446 fuel Substances 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 230000001473 noxious effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 11
- 239000003054 catalyst Substances 0.000 description 10
- 239000010720 hydraulic oil Substances 0.000 description 8
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
- F02D2041/026—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus using an external load, e.g. by increasing generator load or by changing the gear ratio
Landscapes
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Description
【発明の詳細な説明】
発明の目的
（産業上の利用分野）
この発明はディーゼル排気浄化装置の再生方法に関する
。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a method for regenerating a diesel exhaust purification device.
（従来の技術）
一般に、ディーゼルエンジンの排気経路には触媒フィル
ターを配置し、排気ガス内に含有されるパティキュレー
トを捕集する構成としている。これら、パティキュレー
トの粒子が一部量以上フイルターに付着すると、背圧の
上昇や触媒の非活性化を招くため、これら粒子をフィル
ターから除去してフィルターを再生する必要がある。(Prior Art) Generally, a catalyst filter is disposed in the exhaust path of a diesel engine to collect particulates contained in the exhaust gas. If more than a portion of these particulate particles adhere to the filter, it will cause an increase in back pressure and deactivation of the catalyst, so it is necessary to remove these particles from the filter and regenerate the filter.
上記した、フィルター再生システムとして、例えば特開
昭５９−７７２１号公報に開示されるものがある。この
フィルター再生システムでは、エンジン停止中に手動操
作により始動スイッチがオンされると、パティキエレー
ト捕集量検出回路からの信号に従ってバーナーが作動し
、燃料ノズルと空気ノズルから噴出される燃料及び空気
の混合気が着火され、フィルターに捕集されたパティキ
ュレートが焼却除去される。As the above-mentioned filter regeneration system, there is one disclosed, for example, in Japanese Patent Application Laid-open No. 7721/1983. In this filter regeneration system, when the start switch is manually turned on while the engine is stopped, the burner is activated according to the signal from the particulate collection amount detection circuit, and the fuel and air are injected from the fuel nozzle and air nozzle. The air-fuel mixture is ignited, and the particulates collected in the filter are incinerated and removed.
（発明が解決しようとする問題点）
ところが、上記したフィルター再生システムでは燃焼装
置として燃料ノズル、空気ノズル、バーナー及びこれら
の周辺部品を必要とし、構成が複雑になるとともに、コ
スト高となる。(Problems to be Solved by the Invention) However, the above-described filter regeneration system requires a fuel nozzle, an air nozzle, a burner, and peripheral parts thereof as a combustion device, resulting in a complicated configuration and high cost.
この発明の目的は、構成が簡単にしてコストが低いディ
ーゼル排気浄化装置の再生方法を提供することにある。An object of the present invention is to provide a method for regenerating a diesel exhaust purification device that has a simple configuration and is low in cost.
発明の構成
（問題点を解決するための手段）
この発明は上記した問題点を解決するために、アイドリ
ング状態にあるエンジンを高速駆動するとともに、この
エンジン自身の動力取出し機構によりエンジンの負荷を
高めて排気ガスの温度を上昇させ、この排気ガスの排出
経路内において触媒フィルターに付着した排気ガスの有
害成分の粒子を、前記高温の排気ガスにて燃焼させて除
去することをその要旨とする。Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention drives an idling engine at high speed and increases the load on the engine using the engine's own power extraction mechanism. The gist of this method is to raise the temperature of the exhaust gas, and remove particles of harmful components of the exhaust gas that have adhered to the catalyst filter in the exhaust path by burning them with the high-temperature exhaust gas.
（作用）
この発明は上記した手段を採用したことにより、エンジ
ン自身の機能により排気ガスの温度が上昇され、この高
温の排気ガスによりフィルターに捕集された有害成分の
粒子が燃焼される。(Operation) By employing the above-described means, the present invention raises the temperature of exhaust gas by the function of the engine itself, and the particles of harmful components collected by the filter are combusted by this high-temperature exhaust gas.
（実施例）
以下、この発明をディーゼルエンジン式フォークリフト
に具体化した一実施例を図面に従って詳述する。(Example) Hereinafter, an example in which the present invention is embodied in a diesel engine type forklift truck will be described in detail with reference to the drawings.
ディーゼルエンジン１には冷却用のファン２が設けられ
、さらにはエキゾーストマニホールド３から延びる排気
管４がエンジン外に導出され図示しない消音装置に連通
されている。前記排気管４は延出経路中においてその一
部が大径状に形成されてジャケット５が構成され、その
内部には排気ガス浄化用のフィルター６が固定配置され
ている。The diesel engine 1 is provided with a cooling fan 2, and an exhaust pipe 4 extending from an exhaust manifold 3 is led out of the engine and communicated with a muffler (not shown). A portion of the exhaust pipe 4 has a large diameter in the extending path to constitute a jacket 5, and a filter 6 for purifying exhaust gas is fixedly disposed inside the jacket 5.
このフィルター６には白金−パラジア系の触媒が担持さ
れ、排気ガスの浄化及び温度降下を行なう。This filter 6 supports a platinum-palladium catalyst to purify the exhaust gas and lower the temperature.
即ち、フィルター６は触媒にて、車輌走行時にエンジン
から排出される排気ガス中のパティキュレートの粒子を
捕捉して、有害成分を大幅に除去したのち排気ガスの温
度を下げ、下流側排気管４から大気中に噴射する。That is, the filter 6 uses a catalyst to capture particulate particles in the exhaust gas discharged from the engine when the vehicle is running, largely removes harmful components, lowers the temperature of the exhaust gas, and then passes the exhaust gas through the downstream exhaust pipe 4. into the atmosphere.
また、ジャケット５のフィルター６より上流側には背圧
センサ７が設けられ、フィルター６が許容量以上のパテ
ィキュレート粒子を捕集し、フィルター６の通気性が低
下したとき、ジャケット５上流側に排気ガスが充満して
気圧が上昇し、この気圧が予め設定した許容値を越える
と背圧センサ７がこれを検知する。また、下流側には温
度センサ８が設けられ、フィルター６を通過した排気ガ
スの温度を検出するようになっている。In addition, a back pressure sensor 7 is provided on the upstream side of the filter 6 of the jacket 5, and when the filter 6 collects particulate particles exceeding the allowable amount and the air permeability of the filter 6 decreases, the back pressure sensor 7 is installed on the upstream side of the jacket 5. When exhaust gas fills and the atmospheric pressure rises, and this atmospheric pressure exceeds a preset tolerance value, the back pressure sensor 7 detects this. Further, a temperature sensor 8 is provided on the downstream side to detect the temperature of the exhaust gas that has passed through the filter 6.
前記エンジン１には動力取出し機構としての油圧ポンプ
１２が設けられ、そのポンプ軸がエンジン１の出力軸に
連結されている。この油圧ポンプ１２はオイルタンク１
３に対し給油管１４、送油管１５により連通され、オイ
ルタンク１３に貯留された作動油Ｏをティルトシリンダ
等の作動機構に供給するものである。前記送油管１５は
上流部及び下流部に分割され、両者間には電磁式流量制
御弁１６が介在されてい、る、この流量制御弁１６は第
２アクチユエータ１７にて励磁作動されると、作動油０
が前記作動機構に流れることを防止して、油圧ポンプ１
２とオイルタンク１３間を循環させるとともに、送油管
１５内を流れる作動油０の流量を制御し、油圧ポンプ１
２にかかる負荷を増減させるようになっている。なお、
図面中１３ａは油圧ポンプ１２内の作動油Ｏの温度を検
出するための油温センサである。The engine 1 is provided with a hydraulic pump 12 as a power extraction mechanism, and its pump shaft is connected to the output shaft of the engine 1. This hydraulic pump 12 is an oil tank 1
3 through an oil supply pipe 14 and an oil supply pipe 15, and supplies hydraulic oil O stored in an oil tank 13 to an operating mechanism such as a tilt cylinder. The oil pipe 15 is divided into an upstream part and a downstream part, and an electromagnetic flow control valve 16 is interposed between the two parts. When the flow control valve 16 is excited and operated by the second actuator 17, it is activated. Oil 0
prevents the hydraulic pump 1 from flowing into the operating mechanism.
The hydraulic pump 1
The load applied to 2 can be increased or decreased. In addition,
In the drawing, reference numeral 13a denotes an oil temperature sensor for detecting the temperature of the hydraulic oil O within the hydraulic pump 12.
また、エンジン１がアイドリング状態にあるとき、第１
アクチユエータ９にて励磁駆動されるスロットルレバー
１０により、燃料噴射ポンプ１１からディーゼル燃料が
エンジン１に噴射されて、これを高速回転数にて駆動す
る。同時に、前記した流量制御弁１５を作動させて作動
油Ｏの流量制限を行ない、油圧ポンプ１２の吐出圧を上
昇させ、同油圧ポンプ１２にかかる負荷を増すことによ
り、エンジン１の出力を上昇させる。すると、エンジン
１内は高温となり、排気ガスの温度も上昇する。Further, when the engine 1 is in an idling state, the first
Diesel fuel is injected from a fuel injection pump 11 into the engine 1 by a throttle lever 10 which is excited and driven by an actuator 9, and is driven at a high rotation speed. At the same time, the flow rate control valve 15 described above is operated to limit the flow rate of the hydraulic oil O, thereby increasing the discharge pressure of the hydraulic pump 12 and increasing the load on the hydraulic pump 12, thereby increasing the output of the engine 1. . Then, the temperature inside the engine 1 becomes high, and the temperature of the exhaust gas also rises.
そして、この高温排気ガスが排気管４内を通過してジャ
ケット５内に達し、フィルター６に付着したパティキュ
レートの粒子を燃焼除去してフィルター６を浄化するよ
うになっている。なお、触媒は再生温度を下げるための
ものであり、再生装置のヒートトラブルを防止するとと
もに、エンジン負荷が比較的低い領域で再生できる効果
を有する。This high-temperature exhaust gas passes through the exhaust pipe 4 and reaches the jacket 5, where it burns off particulate particles adhering to the filter 6 and purifies the filter 6. Note that the catalyst is for lowering the regeneration temperature, and has the effect of preventing heat troubles in the regenerator and allowing regeneration in a region where the engine load is relatively low.
次に、本発明の電気的構成を第２図に従って説明する。Next, the electrical configuration of the present invention will be explained with reference to FIG.
中央処理装置（以下ＣＰＵという）１８には読出し専用
メモリ （ＲＯＭ）１９と読出し及び書込み可能なメモ
リ （ＲＡＭ）２０とが接続され、さらにＣＰＵ１８の
入力側にはイグニッションキー２２、再生動作スタート
キー２３、背圧センサ７、温度センサ８、油温センサ１
３ａ、エンジン１の稼動時間を計測するアワーメータ２
１がそれぞれ接続されている。また、前記ＣＰＵＩ Ｂ
の出力側には第１アクチユエータ９、第２アクチユエー
タ１７、表示ランプ２４、警報ブザ−２５がそれぞれ接
続され、さらにアクチュエータ９．１７にはスロットル
レバー１０＆び流量制御弁１６がそれぞれ機械的に接続
されている。A read-only memory (ROM) 19 and a readable and writable memory (RAM) 20 are connected to the central processing unit (hereinafter referred to as CPU) 18, and an ignition key 22 and a playback operation start key 23 are connected to the input side of the CPU 18. , back pressure sensor 7, temperature sensor 8, oil temperature sensor 1
3a, hour meter 2 that measures the operating time of engine 1
1 are connected to each other. In addition, the CPUI B
A first actuator 9, a second actuator 17, an indicator lamp 24, and an alarm buzzer 25 are connected to the output side of the actuator 9, and a throttle lever 10 and a flow rate control valve 16 are mechanically connected to the actuator 9 and 17, respectively. ing.
前記ＲＯＭ１９内には、ジャケット５内下流側の排気ガ
スの許容最高温度、フィルター６の浄化時においてアイ
ドリング状態にあるエンジン１の再生用高速回転数及び
エンジンｌの高速回転時間、作動油０の最高許容温度、
排気ガス及び作動油０の温度に対応する流量制御弁１６
の流量制御量に関するデータが記憶されている。The ROM 19 contains information such as the maximum permissible temperature of the exhaust gas on the downstream side inside the jacket 5, the high-speed rotation speed for regeneration of the engine 1 in an idling state when the filter 6 is purified, the high-speed rotation time of the engine 1, and the maximum temperature of the hydraulic oil 0. permissible temperature,
Flow control valve 16 corresponding to the temperature of exhaust gas and hydraulic oil 0
Data regarding the flow rate control amount is stored.
前記したようにフィルター６に付着した排気ガスのパテ
ィキュレート粒子が許容量を越え、ジャケット５上流側
に充満した排気ガスの圧力が所定の許容値を越えると、
背圧センサ７がこれを検知し、ＣＰＬ１１８に信号を出
力する。ＣＰＵ１８はこの信号に基づく点灯信号を表示
ランプ２４に出力してこれを点灯させ、運転者に対し再
生スタートキー２３の操作によりフィルター６を再生す
ることを促す。As mentioned above, when the particulate particles of the exhaust gas adhering to the filter 6 exceed the permissible amount and the pressure of the exhaust gas filling the upstream side of the jacket 5 exceeds the predetermined permissible value,
The back pressure sensor 7 detects this and outputs a signal to the CPL 118. The CPU 18 outputs a lighting signal based on this signal to the display lamp 24 to turn it on, and prompts the driver to regenerate the filter 6 by operating the regeneration start key 23.
エンジン１をアイドリング状態に保持し、再生スタート
キー２３が操作されると、ＣＰＵ１ＢはＲＯＭ１９に記
憶された再生用高速回転数を読出し、この再生用高速回
転数に適合するように第１アクチユエータ９を介してス
ロットルレバー１０を作動させ、エンジンｌを高速にて
回転させる。When the engine 1 is kept in an idling state and the regeneration start key 23 is operated, the CPU 1B reads out the high speed rotation speed for regeneration stored in the ROM 19, and adjusts the first actuator 9 to match the high speed rotation speed for regeneration. The throttle lever 10 is actuated via the throttle lever 10 to rotate the engine 1 at high speed.
同時に、ＣＰＵ１８は第２アクチユエータ１７を作動励
磁して流量制御弁１６を絞り、油圧ポンプ１−２を介し
てエンジン１の負荷を増大させてエンジン１の出力を高
め、排気ガスの温度を上昇させる。At the same time, the CPU 18 activates the second actuator 17 to throttle the flow rate control valve 16, increases the load on the engine 1 via the hydraulic pump 1-2, increases the output of the engine 1, and raises the temperature of the exhaust gas. .
前記排気ガスが高温に達すると、この高温排気ガスが上
流側排気管４からジャケット５内に流入 ″し、フィル
ター６に付着したパティキュレート粒子を燃焼除去する
。前記エンジン１の高速回転開始と同時にエンジンアワ
ーメータ２１が時間計測を始め、所定時間が経過すると
、ＣＰＵ１８は第１及び第２アクチュエータ９，１７を
消磁してエンジン１の高速回転を停止させるとともに、
流量制御弁１６を開放する。このあと、エンジン１のア
イドリング動作が停止され、フィルター再生作業が終了
する。When the exhaust gas reaches a high temperature, the high-temperature exhaust gas flows into the jacket 5 from the upstream exhaust pipe 4 and burns off the particulate particles attached to the filter 6. At the same time as the engine 1 starts rotating at high speed, The engine hour meter 21 starts measuring time, and when a predetermined period of time has elapsed, the CPU 18 demagnetizes the first and second actuators 9, 17 to stop the high-speed rotation of the engine 1, and
Open the flow control valve 16. After this, the idling operation of the engine 1 is stopped, and the filter regeneration work is completed.
なお、排気ガスの温度は温度センサ８にて常に検知され
、この温度が所定の許容値に達するまでは、ＣＰＵ１８
は第２アクチユエータ１７を作動させて流量制御弁１６
に絞りを加え、エンジンｌの出力を増加させることによ
り排気ガスの温度の上昇を促進させる。そして、排気ガ
スの温度が前記した許容値に達したとき、流量制御弁１
６の絞りを一定に保持し、エンジン１の出力の増加によ
る排気ガス温度の上昇を防止し、フィルター６の燃焼及
びこれに担持される触媒の劣化を未然に阻止する。Note that the temperature of the exhaust gas is constantly detected by the temperature sensor 8, and until this temperature reaches a predetermined tolerance value, the CPU 18
operates the second actuator 17 to close the flow control valve 16.
By adding a throttle to the engine and increasing the output of the engine, the temperature of the exhaust gas increases. Then, when the temperature of the exhaust gas reaches the above-mentioned allowable value, the flow control valve 1
6 is held constant to prevent a rise in exhaust gas temperature due to an increase in the output of the engine 1, thereby preventing combustion of the filter 6 and deterioration of the catalyst supported therein.
また、油温センサ１３ａも同様に、流量制御弁゛１６の
絞りによる流体摩擦に起因する作動油０の温度上昇を検
知して、この油温の変化を逐−ＣＰＵ１８に出力し、予
め設定された最高許容温度値を基準に流量制御弁１６の
絞り量の増減によるエンジン１の出力の調整が行われる
。Similarly, the oil temperature sensor 13a detects the temperature rise of the hydraulic oil 0 caused by fluid friction caused by the throttle of the flow control valve 16, and outputs this oil temperature change to the CPU 18 in advance. The output of the engine 1 is adjusted by increasing or decreasing the throttle amount of the flow control valve 16 based on the maximum allowable temperature value.
なお、流量調整系統の不良作動等により、エンジンｌの
出力が必要以上に増加すると、排気ガス及び作動油Ｏの
温度が所定値以上に上昇する。このとき、温度センサ８
及び油温センサ１３ａがこの温度を検知して、ＣＰＵ１
８に信号を出力し、ＣＰＵ１Ｂはこれらの信号に基づい
て警報ブザ−２５に警告音を発声させ、異常事態の発生
を知らせる。従って、フィルター再生作業は安全な状態
で行われる。Note that when the output of the engine 1 increases more than necessary due to malfunction of the flow rate adjustment system, the temperature of the exhaust gas and the hydraulic oil O rises above a predetermined value. At this time, the temperature sensor 8
and the oil temperature sensor 13a detects this temperature, and the CPU 1
Based on these signals, the CPU 1B causes the alarm buzzer 25 to emit a warning sound to notify the occurrence of an abnormal situation. Therefore, the filter regeneration operation is performed in a safe manner.
上記した排気浄化装置はフォークリフトのエンジン１に
内蔵された作動油０配給用の油圧ポンプ１２にてエンジ
ン１の出力を上昇させ、これに伴う高温排気ガスによっ
ｔ排気経路中のフィルター６に付着したバ与イキュレー
ト粒子を燃焼除去する構成としている。従って、パティ
キエレート粒子の燃焼装置を別個に設ける必要がない。The above-mentioned exhaust gas purification device increases the output of the engine 1 using the hydraulic pump 12 for distributing hydraulic oil built into the engine 1 of the forklift, and the resulting high-temperature exhaust gas adheres to the filter 6 in the exhaust path. The structure is such that the absorbed iculate particles are burned and removed. Therefore, there is no need to provide a separate combustion device for the particulate particles.
また、フィルター６の触媒の作用により、排気ガスの温
度の極端な上昇が抑えられ、排気ガスがフィルター６を
通過するときフィルター６の燃焼が防止される。さらに
、この排気ガスにより、フィルター６に付着したパティ
キエレート粒子を燃焼する構成であるため、バーナー及
びヒーターによる火炎式燃焼法に見られる局部的温度上
昇が回避され、フィルター６の燃焼損傷やヒートショッ
クによる触媒の劣化が防止され得る。Furthermore, the action of the catalyst in the filter 6 suppresses an extreme rise in the temperature of the exhaust gas, and prevents the filter 6 from burning when the exhaust gas passes through the filter 6. Furthermore, since this exhaust gas is configured to burn the particulate particles adhering to the filter 6, the local temperature rise seen in the flame combustion method using a burner and heater is avoided, preventing combustion damage to the filter 6 and Deterioration of the catalyst due to shock can be prevented.
なお、本実施例において、再生開始の信号をエンジンの
一定稼動と背圧のＯＲ信号でとることも可能である。ま
た、再生作業の完了は背圧センサ７によりジャケット５
の上流側における排気ガスの圧力を検知して、フィルタ
ー６の通気性が向上したか否かを確認する方法を採用す
ることも可能である。In this embodiment, it is also possible to use an OR signal of constant operation of the engine and back pressure as the signal to start regeneration. Also, when the regeneration work is completed, the back pressure sensor 7 indicates that the jacket 5
It is also possible to adopt a method of detecting the pressure of exhaust gas on the upstream side of the filter 6 to confirm whether or not the air permeability of the filter 6 has improved.
発明の効果
以上詳述したように、この発明によれば、エンジンの内
部構造を利用したため、構成が簡単にしてコストの低減
化を図ることができるという優れた効果を発揮する。Effects of the Invention As described in detail above, according to the present invention, since the internal structure of the engine is utilized, the structure can be simplified and costs can be reduced, which is an excellent effect.
第１図は本発明の一実施例を示す路体説明図、第２図は
本発明の電気的構成を示すブロック図である。
エンジン１、排気ガス排出経路としてのジャケット５、
触媒フィルター６、動力取出し機構として油圧ポンプ１
２゜FIG. 1 is an explanatory diagram of a road body showing one embodiment of the present invention, and FIG. 2 is a block diagram showing the electrical configuration of the present invention. Engine 1, jacket 5 as an exhaust gas discharge path,
Catalyst filter 6, hydraulic pump 1 as a power extraction mechanism
2゜
Claims (1)
ともに、このエンジン自身の動力取出し機構によりエン
ジンの負荷を高めて排気ガスの温度を上昇させ、この排
気ガスの排出経路内において触媒フィルターに付着した
排気ガスの有害成分の粒子を、前記高温の排気ガスにて
燃焼して除去するディーゼル排気浄化装置の再生方法。1. The idling engine is driven at high speed, and the engine's own power extraction mechanism increases the load on the engine and raises the temperature of the exhaust gas. A method for regenerating a diesel exhaust purification device, which removes particles of harmful components by burning them in the high-temperature exhaust gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62135427A JPS63297722A (en) | 1987-05-29 | 1987-05-29 | Regenerative method for exhaust purifier of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62135427A JPS63297722A (en) | 1987-05-29 | 1987-05-29 | Regenerative method for exhaust purifier of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63297722A true JPS63297722A (en) | 1988-12-05 |
Family
ID=15151475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62135427A Pending JPS63297722A (en) | 1987-05-29 | 1987-05-29 | Regenerative method for exhaust purifier of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63297722A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1074702A1 (en) * | 1999-08-02 | 2001-02-07 | Peugeot Citroen Automobiles SA | Apparatus for initiating regeneration of an engine exhaust gas particulate filter |
| EP1197643A1 (en) * | 2000-10-12 | 2002-04-17 | Renault | Process and device for regenerating a particle filter placed in the exhaust line of an internal combustion engine moving an automobile vehicle |
| WO2003033892A1 (en) * | 2001-10-15 | 2003-04-24 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purifying device and method for internal combustion engine |
| JP2009019534A (en) * | 2007-07-10 | 2009-01-29 | Tadano Ltd | Exhaust emission control device of working vehicle |
| US7523606B2 (en) | 2005-08-31 | 2009-04-28 | Caterpillar Inc. | Parasitic load control system for exhaust temperature control |
| JP2009540213A (en) * | 2006-06-14 | 2009-11-19 | ボルボ ラストバグナー アーベー | Method and apparatus for regenerating an exhaust gas purification device |
| WO2010024013A1 (en) * | 2008-08-26 | 2010-03-04 | ヤンマー株式会社 | Exhaust gas purifier |
| DE102008058520A1 (en) * | 2008-11-21 | 2010-05-27 | Deutz Ag | Regeneration procedure for a diesel particulate filter without burner |
| JP2010241607A (en) * | 2010-07-05 | 2010-10-28 | Tadano Ltd | Exhaust emission control device for working vehicle |
| WO2011027822A1 (en) * | 2009-09-04 | 2011-03-10 | 日立建機株式会社 | Hydraulic drive device of hydraulic operating machine |
| CN102086796A (en) * | 2009-12-03 | 2011-06-08 | 日立建机株式会社 | Hydraulic working rig |
| JP2011132912A (en) * | 2009-12-25 | 2011-07-07 | Kobelco Cranes Co Ltd | Construction machine |
| JP2011163166A (en) * | 2010-02-08 | 2011-08-25 | Tcm Corp | Particulate removing filter regenerating device |
| JP2016089409A (en) * | 2014-10-31 | 2016-05-23 | 日立建機株式会社 | Exhaust emission control device for rolling compaction machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS597234B2 (en) * | 1976-07-15 | 1984-02-17 | 富士通株式会社 | Method for manufacturing semiconductor light emitting device |
| JPS6032918A (en) * | 1983-08-03 | 1985-02-20 | Mitsubishi Motors Corp | Diesel engine exhaust gas purifier |
| JPS60206923A (en) * | 1984-03-31 | 1985-10-18 | Mitsubishi Motors Corp | Diesel particulates catching member protector |
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1987
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS597234B2 (en) * | 1976-07-15 | 1984-02-17 | 富士通株式会社 | Method for manufacturing semiconductor light emitting device |
| JPS6032918A (en) * | 1983-08-03 | 1985-02-20 | Mitsubishi Motors Corp | Diesel engine exhaust gas purifier |
| JPS60206923A (en) * | 1984-03-31 | 1985-10-18 | Mitsubishi Motors Corp | Diesel particulates catching member protector |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1074702A1 (en) * | 1999-08-02 | 2001-02-07 | Peugeot Citroen Automobiles SA | Apparatus for initiating regeneration of an engine exhaust gas particulate filter |
| FR2797300A1 (en) * | 1999-08-02 | 2001-02-09 | Peugeot Citroen Automobiles Sa | ASSISTANCE SYSTEM FOR TRIGGERING THE REGENERATION OF A PARTICLE FILTER INTEGRATED IN AN EXHAUST LINE OF A MOTOR VEHICLE ENGINE |
| EP1197643A1 (en) * | 2000-10-12 | 2002-04-17 | Renault | Process and device for regenerating a particle filter placed in the exhaust line of an internal combustion engine moving an automobile vehicle |
| FR2815379A1 (en) * | 2000-10-12 | 2002-04-19 | Renault | METHOD AND DEVICE FOR REGENERATING A PARTICLE FILTER PLACED IN THE EXHAUST LINE OF AN INTERNAL COMBUSTION ENGINE PROPELLING A MOTOR VEHICLE |
| WO2003033892A1 (en) * | 2001-10-15 | 2003-04-24 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purifying device and method for internal combustion engine |
| US7246485B2 (en) | 2001-10-15 | 2007-07-24 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purifying device and method for internal combustion engine |
| US7523606B2 (en) | 2005-08-31 | 2009-04-28 | Caterpillar Inc. | Parasitic load control system for exhaust temperature control |
| JP2009540213A (en) * | 2006-06-14 | 2009-11-19 | ボルボ ラストバグナー アーベー | Method and apparatus for regenerating an exhaust gas purification device |
| JP2009019534A (en) * | 2007-07-10 | 2009-01-29 | Tadano Ltd | Exhaust emission control device of working vehicle |
| WO2010024013A1 (en) * | 2008-08-26 | 2010-03-04 | ヤンマー株式会社 | Exhaust gas purifier |
| DE102008058520A1 (en) * | 2008-11-21 | 2010-05-27 | Deutz Ag | Regeneration procedure for a diesel particulate filter without burner |
| WO2011027822A1 (en) * | 2009-09-04 | 2011-03-10 | 日立建機株式会社 | Hydraulic drive device of hydraulic operating machine |
| JP2011052669A (en) * | 2009-09-04 | 2011-03-17 | Hitachi Constr Mach Co Ltd | Hydraulically driving device for hydraulic working machine |
| US8881506B2 (en) | 2009-09-04 | 2014-11-11 | Hitachi Construction Machinery Co., Ltd. | Hydraulic drive device of hydraulic operating machine |
| CN102086796A (en) * | 2009-12-03 | 2011-06-08 | 日立建机株式会社 | Hydraulic working rig |
| KR20110063355A (en) * | 2009-12-03 | 2011-06-10 | 히다치 겡키 가부시키 가이샤 | Hydraulic working machine |
| JP2011137361A (en) * | 2009-12-03 | 2011-07-14 | Hitachi Constr Mach Co Ltd | Hydraulic working machine |
| JP2011132912A (en) * | 2009-12-25 | 2011-07-07 | Kobelco Cranes Co Ltd | Construction machine |
| JP2011163166A (en) * | 2010-02-08 | 2011-08-25 | Tcm Corp | Particulate removing filter regenerating device |
| JP2010241607A (en) * | 2010-07-05 | 2010-10-28 | Tadano Ltd | Exhaust emission control device for working vehicle |
| JP2016089409A (en) * | 2014-10-31 | 2016-05-23 | 日立建機株式会社 | Exhaust emission control device for rolling compaction machine |
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