JPS60230506A - Engine exhaust gas purifying facility - Google Patents

Engine exhaust gas purifying facility

Info

Publication number
JPS60230506A
JPS60230506A JP59086130A JP8613084A JPS60230506A JP S60230506 A JPS60230506 A JP S60230506A JP 59086130 A JP59086130 A JP 59086130A JP 8613084 A JP8613084 A JP 8613084A JP S60230506 A JPS60230506 A JP S60230506A
Authority
JP
Japan
Prior art keywords
filter
exhaust gas
exhaust
carbon particles
engine
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
Application number
JP59086130A
Other languages
Japanese (ja)
Inventor
Yoichi Miyagawa
洋一 宮川
Tamotsu Kasuya
糟谷 保
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP59086130A priority Critical patent/JPS60230506A/en
Publication of JPS60230506A publication Critical patent/JPS60230506A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/025Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0097Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

PURPOSE:To collect and clean carbon particles contained in an exhaust gas while increase the life of a filter by providing said filter in the exhaust system of an engine and providing a combustion equipment on the inlet side of said filter, being directed to the filter side. CONSTITUTION:The exhaust manifold 2 of an engine 1 is connected to an exhaust pipe 4 through a muffler 3 and a cleaning device A. In the purifying devide A, a filter 6 is provided in a cylindrical body 5 forming an inlet chamber 7 and an outlet chamber 8, and a combustion equipment 9 is provided on the inlet chamber 7 while the exhaust pipe 4 is connected to the outlet chamber 8. In the combustion equipment 9, fuel injected from a nozzle 14 is burned by means of a glow plug 15 to blow a flame into the filter 6, which is controlled by a control unit 19 based on the detected signals of sensors 20-22. Thereby, carbon particles in an exhaust gas can be collected and cleaned while carbon particles deposited on the filter 6 can be burned, increasing the life of the filter 6.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、内燃機関の排出ガス中に含まれる人体に有害
なカーボン粒子を捕集、浄化してクリーンな排出ガスと
する排出ガス浄化装置に関するものである。
Detailed Description of the Invention Field of the Invention The present invention relates to an exhaust gas purification device that collects and purifies carbon particles harmful to the human body contained in the exhaust gas of an internal combustion engine to produce clean exhaust gas. It is.

従来技術 排気系統に消音用マラヤが窒素酸化物rIk云用の触媒
マラヤを設けて排出ガスを浄化する装置が知られている
が、この装置であると排出ガス中のカーボン粒子は捕集
、浄化できず、直接人伝[m出1−ていムの7−−j−
ベレー々め十旬柘仇の要因となっている。
PRIOR ART A device is known that purifies exhaust gas by installing a silencing malaya in the exhaust system and a catalyst malaya for nitrogen oxides, but with this device, carbon particles in the exhaust gas are collected and purified. I couldn't do it, so I wrote a direct biography [m.
The berets are the cause of the 10th anniversary.

特に、狭いトンネル内や船倉内で稼動する作業車両の場
合にはその影響が著しくなる。
This effect is particularly significant in the case of work vehicles operating in narrow tunnels or ship holds.

発明の目的 排出ガス中に含まれるカーボン粒子を捕集、浄化できる
ようにすることを目的とする。
OBJECT OF THE INVENTION It is an object of the invention to be able to collect and purify carbon particles contained in exhaust gas.

発明の構成 エンジンの排出系統にフィルタを設けてカーボン粒子を
捕集すると共に、フィルタの流入側には燃焼器をフィル
タに向けて設けてフィルタに付着したカーボン粒子を燃
焼させるようにしたもの。
Structure of the Invention A filter is provided in the exhaust system of the engine to collect carbon particles, and a combustor is provided on the inflow side of the filter facing the filter to burn the carbon particles attached to the filter.

実施例 第1図は全体説明図であり、エンジン1の排気多岐管2
はマフラ3及び本発明に係る浄化装置Aを介して排気管
4に接続しである。
Embodiment FIG. 1 is an overall explanatory diagram showing the exhaust manifold 2 of the engine 1.
is connected to an exhaust pipe 4 via a muffler 3 and a purifier A according to the present invention.

前記浄化装置Aは筒状の本体5内にフィルタ6を設けて
入口室7と出口室gとを形成したもので、その入口室7
には燃焼器9が設けられ、出口室8に排気管4が接続し
である。
The purifying device A has a filter 6 provided in a cylindrical main body 5 to form an inlet chamber 7 and an outlet chamber g.
A combustor 9 is provided in the combustor 9, and an exhaust pipe 4 is connected to the outlet chamber 8.

前記フィルタ6は第2図、第3図に示すように、薄いセ
ラミックの多孔質隔壁1oで長手方向の通路11を多数
形成し、その相瞬接する通路11の入口側と出口側とを
入口、出ロブラグ12.13で交互に閉塞したものであ
り、排出ガスは多孔質隔壁11を通しで流れることでカ
ーボン粒子が捕集、浄化される。
As shown in FIGS. 2 and 3, the filter 6 has a plurality of longitudinal passages 11 formed by a thin ceramic porous partition wall 1o, and the inlet and outlet sides of the passages 11 that are in contact with each other are used as an inlet and an outlet. The outlet plugs 12 and 13 are alternately closed, and the exhaust gas flows through the porous partition walls 11 to collect and purify carbon particles.

前記燃焼器9はノズル14とグロープラグ15とを備え
、ノズル14より噴出された燃料をグループラグ15で
燃焼させて前記フィルタ6に炎を吹き込むようにしてあ
り、ノズル14は噴射量フン)0−ラ16、燃料カット
弁17を経テ燃料ポンプ1gに接続され、コン)o−ル
ユニット19で制御される。
The combustor 9 includes a nozzle 14 and a glow plug 15, and the fuel ejected from the nozzle 14 is combusted by a group lug 15 to blow flame into the filter 6. 16 and a fuel cut valve 17 are connected to a fuel pump 1g and controlled by a control unit 19.

20は温度センサ、21は排圧センサであって前記入口
室7に設けてあり、22はエンジン1の回転センサであ
って、これらセンサ20゜21.22に、l:つてコン
トロールユニット19によって燃焼器9が制御される。
20 is a temperature sensor, 21 is an exhaust pressure sensor provided in the inlet chamber 7, 22 is a rotation sensor of the engine 1, and the control unit 19 controls the combustion device 9 is controlled.

茨に作動を説明する。Explaining the operation to Ibara.

コントロールユニット19の主スィッチ23をONする
と排圧センサ21、温度センサ20゜回転センサ22よ
りの排圧、排温、エンジン回転速度によってフィルタ6
にどの程fカーホン粒子が付着堆積したかを演算感知し
、一定量となったら目詰りランプ24を点灯する。
When the main switch 23 of the control unit 19 is turned ON, the filter 6
The amount of f-carphone particles attached and deposited is calculated and sensed, and when a certain amount is reached, the clogging lamp 24 is turned on.

これと同時にコントロールユニット19よりエンジン1
の燃料噴射ボ、ン、プ25のコントロールレバ26に低
速信号を出力してエンジン1を低速回転とし排出ガスの
排出を安定させる。
At the same time, the control unit 19 sends the engine 1
A low speed signal is output to the control lever 26 of the fuel injection valve 25 to rotate the engine 1 at a low speed and stabilize the discharge of exhaust gas.

そして、再生釦27をONL、て再生中ランプ28を点
灯させると共に、グロープラグ15をONし、ノズル1
4より燃料を噴出して燃焼さセ、炎をフィルタ6の通路
11内に吹き込んで多孔質隔壁10に付着したカーボン
粒子を燃焼させる。この時、燃焼開始するとグロープラ
グ15はOFFとなる。
Then, turn on the regeneration button 27 to turn on the regeneration lamp 28, turn on the glow plug 15, and turn on the nozzle 1.
The fuel is ejected from 4 and combusted, and the flame is blown into the passage 11 of the filter 6 to burn the carbon particles attached to the porous partition wall 10. At this time, when combustion starts, the glow plug 15 is turned off.

カーボン粒子を燃焼終了したらノズルj4をOFFシ、
燃料カット弁17をOFF して燃料供給を停止すると
共に、再生中ランプ28を消灯する。
When the carbon particles have finished burning, turn off the nozzle j4.
The fuel cut valve 17 is turned off to stop the fuel supply, and the regeneration lamp 28 is turned off.

以上の動作を7υ−チャートで表わすと第4図に示すよ
うになる。
The above operation is expressed in a 7υ-chart as shown in FIG.

なお、再生開始を感知するのにエンジン回転数を取り入
れたのは、排温、排圧はエンジン回転数が速くなると高
くなり、再生開始の目詰シ状態が異なってしまうので、
エンジン回転数によって排温、排圧の限界値(再生開始
値)を変化させるためである。
The reason why the engine speed is used to detect the start of regeneration is because the exhaust temperature and exhaust pressure increase as the engine speed increases, and the clogging state at the start of regeneration will be different.
This is to change the exhaust temperature and exhaust pressure limit values (regeneration start values) depending on the engine speed.

なお、第5図、第6図に示すように出口室8に白金等の
触媒30を設けて排出ガス中のC09He 、 NOx
等を除去するようにすると共に、車両のボンネット31
の内側に装着し、排気管4を開口31αより外部に突出
させても良い。
In addition, as shown in FIGS. 5 and 6, a catalyst 30 such as platinum is provided in the outlet chamber 8 to reduce CO9He and NOx in the exhaust gas.
etc., and remove the bonnet 31 of the vehicle.
The exhaust pipe 4 may be mounted inside the opening 31α and protrude outside from the opening 31α.

この様にすれば、全体をコンパクトに出来ると共に、ボ
ンネット31より突出する部分が少なくなってオペレー
タの前方視界が悪くならず、さらに入口室7には触媒3
0の影響が及ぼさないから排温、排圧が正確に検出でき
、再生指示を安定して与えることができる。
In this way, the entire structure can be made compact, the portion protruding from the bonnet 31 is reduced, and the forward visibility of the operator is not deteriorated. Furthermore, the inlet chamber 7 has a catalyst 3
Since there is no influence of zero, exhaust temperature and exhaust pressure can be detected accurately, and regeneration instructions can be stably given.

発明の効果 排出ガス中のカーボン粒子を捕集、浄化してクリーンな
排出ガスとして排出できると共に、フィルタ6に付着し
たカーボン粒子を燃焼して除去できるからフィルタ6の
寿命が長くなる。
Effects of the Invention Carbon particles in the exhaust gas can be collected and purified to be discharged as clean exhaust gas, and carbon particles attached to the filter 6 can be burned and removed, so the life of the filter 6 can be extended.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の実施例を示し、第1図は全体図、第2図
はフィルタの断面図、第3図は側面図、第4図は動作7
四−チャード図、第5図は他の実施例の説明図、第6図
は要部拡大図である。 1はエンジン、6はフィルタ、9は燃焼器。 出願人 株式会社小松裏作所 代理人 弁理上米 原 正 章 弁理士浜 本 忠 第1図
The drawings show an embodiment of the present invention, and FIG. 1 is an overall view, FIG. 2 is a sectional view of the filter, FIG. 3 is a side view, and FIG. 4 is an operation 7.
4-Chard diagram, FIG. 5 is an explanatory diagram of another embodiment, and FIG. 6 is an enlarged view of the main part. 1 is the engine, 6 is the filter, and 9 is the combustor. Applicant Komatsu Urasakusho Co., Ltd. Agent Masaaki Yonehara Patent Attorney Tadashi Hamamoto Figure 1

Claims (1)

【特許請求の範囲】[Claims] エンジン1の排出系統にフィルタ6を設け、このフィル
タ6の流入側には燃焼器9をフィルタ6に向けて設けた
ことを特徴とするエンジンの排出ガス浄化装置。
An exhaust gas purification device for an engine, characterized in that a filter 6 is provided in the exhaust system of the engine 1, and a combustor 9 is provided on the inflow side of the filter 6, facing the filter 6.
JP59086130A 1984-05-01 1984-05-01 Engine exhaust gas purifying facility Pending JPS60230506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59086130A JPS60230506A (en) 1984-05-01 1984-05-01 Engine exhaust gas purifying facility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59086130A JPS60230506A (en) 1984-05-01 1984-05-01 Engine exhaust gas purifying facility

Publications (1)

Publication Number Publication Date
JPS60230506A true JPS60230506A (en) 1985-11-16

Family

ID=13878123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59086130A Pending JPS60230506A (en) 1984-05-01 1984-05-01 Engine exhaust gas purifying facility

Country Status (1)

Country Link
JP (1) JPS60230506A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006137694A1 (en) * 2005-06-22 2006-12-28 Korea Institute Of Machinery And Materials Burner for regeneration of diesel engine particulate filter and diesel engine particulate filter having the same
WO2006137695A1 (en) * 2005-06-22 2006-12-28 Korea Institute Of Machinery And Materials Burner for regeneration of diesel particulate filter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4956024A (en) * 1972-09-29 1974-05-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4956024A (en) * 1972-09-29 1974-05-30

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006137694A1 (en) * 2005-06-22 2006-12-28 Korea Institute Of Machinery And Materials Burner for regeneration of diesel engine particulate filter and diesel engine particulate filter having the same
WO2006137695A1 (en) * 2005-06-22 2006-12-28 Korea Institute Of Machinery And Materials Burner for regeneration of diesel particulate filter

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