JPS58180714A - Exhaust processor - Google Patents
Exhaust processorInfo
- Publication number
- JPS58180714A JPS58180714A JP57063375A JP6337582A JPS58180714A JP S58180714 A JPS58180714 A JP S58180714A JP 57063375 A JP57063375 A JP 57063375A JP 6337582 A JP6337582 A JP 6337582A JP S58180714 A JPS58180714 A JP S58180714A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- air
- controller
- flow
- exhaust
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust 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
- F01N3/031—Exhaust 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 having means for by-passing filters, e.g. when clogged or during cold engine start
- F01N3/032—Exhaust 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 having means for by-passing filters, e.g. when clogged or during cold engine start during filter regeneration only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust 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
- F01N3/023—Exhaust 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
- F01N3/027—Exhaust 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 electric or magnetic heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/05—Exhaust 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 air, e.g. by mixing exhaust with air
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Description
【発明の詳細な説明】
本願は、内燃機関から排出される排気ガス中の微粒子ｔ
Ｓ離するための排気処理装置に関するＯ
主としてカーボンから成る排気ガス中の微粒子は、大気
へ放出される前に除去さｎる必要がある。このため、微
粒子音耐熱フィルタで捕捉しこｆ′Ｌｔ燃焼、虜失させ
てフィルタ機能を再生するようにした排気処理装置が知
らルている。DETAILED DESCRIPTION OF THE INVENTION The present application discloses that fine particles t in exhaust gas emitted from an internal combustion engine are
Particulates in the exhaust gas, consisting primarily of carbon, need to be removed before being released into the atmosphere. For this reason, an exhaust treatment device is known in which the particulate sound is captured by a heat-resistant filter, and the filter function is regenerated by combusting the particulate sound and causing the particulate sound to disappear.
その例として、実飄紹５６−１９８７５８号明細書に示
されるように、排気管に耐熱フィルタを設けるとともに
、バイパス弁を介してノくイノくス路を設け、さらにフ
ィルタ上流側に空気供給装置を配設した構造の装置があ
る。このものは、フィルタに捕捉した微粒子を、加熱に
より燃焼させるに際し、フィルタに流入する排気流をパ
イノ（スさせながら空気を供給させるＬうになっている
。As an example, as shown in the specification of Jitsurosho No. 56-198758, a heat-resistant filter is provided in the exhaust pipe, a bypass valve is provided through a bypass valve, and an air supply device is provided upstream of the filter. There is a device with a structure in which In this device, when the particulates captured by the filter are burned by heating, air is supplied while causing the exhaust flow flowing into the filter to be blown.
このような装置は、フィルタ下流側が／（イノくス／
路に連通しているから、排気管内に生ずる脈動がフィル
タ内に伝達し、微粒子の着火、燃焼音阻害するという欠
点をもたらす０
したがって、本鳳は、脈動流の影響を可及的に小とした
フィルタ再生機構を設けた排気処理装置を提供するもの
である。In such a device, since the downstream side of the filter is connected to the duct, the pulsation generated in the exhaust pipe is transmitted to the filter, causing ignition of particulates and interference with combustion noise. The present invention provides an exhaust treatment device equipped with a filter regeneration mechanism that minimizes the influence of pulsating flow.
実施例により説明すると、図は本発明の排気処理装置１
０であつて、排気管ｌに、耐熱フィルタ２が連結される
とともに〕（イノ（ス路３が設けられるＯ耐熱フィルタ
２は、ケース４円に耐熱デ材５ｔｖし該−材に加熱装置
６が設けられる。〕（イノくス路３０入ロ部７ＫＦｉ、
切換弁８が設けられる０耐熱フィルタ２の上下流側には
、空気流入出口９．１１が各々設けられ、空気流入口９
ｔｉ流量制御装置１２を介して空気供給装置（図示ゼず
）へ連結する。To explain with an example, the figure shows an exhaust treatment device 1 of the present invention.
0, and a heat-resistant filter 2 is connected to the exhaust pipe l, and a heat-resistant filter 2 is provided with a passage 3. ] (Inokusuji 30 entrance part 7KFi,
Air inflow ports 9 and 11 are provided on the upstream and downstream sides of the heat-resistant filter 2 where the switching valve 8 is provided.
ti is connected to an air supply device (not shown) via a flow control device 12.
耐熱フィルタ２の下流側の空気流出口口とバイパス路３
０出口１！＋１１３との間ＫＦｉ、脈動流カット弁１４
が設けられる。切換弁８、流量制御装置！２、加熱装置
６そして脈動流カット弁１４Ｌ１各々、作動制御装置１
５へ連結される０作動制御装置１５は、周知の制御１１
１回路から成り、加熱装置６がらの信号にょ９、切換弁
８、脈ＩＩｊＪ流カット弁１４そして流量制御装置１５
０作ｖＪｔ制御させるべく機能する。１６は、排圧感知
装置であって、フィルタ２内の感知体１７と作動制御ｉ
ｆｃ置！５とに連結する。Air outlet port and bypass path 3 on the downstream side of the heat-resistant filter 2
0 exit 1! +113 KFi, pulsating flow cut valve 14
will be provided. Switching valve 8, flow control device! 2, heating device 6 and pulsating flow cut valve 14L1, respectively, and operation control device 1
5 is connected to the well-known control 11.
Consisting of one circuit, a signal switch 9 for the heating device 6, a switching valve 8, a pulse IIjJ flow cut valve 14, and a flow rate control device 15
It functions to control 0 production vJt. 16 is an exhaust pressure sensing device, which is connected to a sensing body 17 in the filter 2 and an operation control i.
FC placed! Connect to 5.
図ＫｆＩＰいて、耐熱フィルタ２が目づまりしていない
間は、切換弁８がバイパス路３１に閉塞さぞ、脈動流カ
ット弁１４がフィルタ下ｆＩＬｌＩ１１′！ｉ−開放さ
ぜ、流量制御装置１５が空気供給装置１２１に停止させ
る状態にＴｏ４ ｏ排気ガス中の微粒子がフィルタ２に
捕捉され、所定の目づまり状ｌ１ｖｃ達すると、排圧感
知装＋１１１２が作動し、所定信号を作動ｌｌＴｌ制御
装置１５に送る。その結果、作動制御装置１２は、切換
弁８および脈動流カット弁１４を移動させ、バイパス路
３を開放し、フィルタ２下流儒ｔｌＦ！塞さぜるべく制
御する。同時に、作動制御装置１５は、加熱装置６を始
動させ、また空気供給装置からの９気を空気流入口９へ
供給させるべく流量制御装置１２４制御する。加熱装置
６が始動すると、Ｐ材５（堆積する微粒子は、着火し燃
焼する。供給空気は、空気流入口９がら空気流出口１１
へ流出する。排気管ｌ内に生ずる脈動流は、バイパス路
３を介してフィルタ２下流側に至るが、脈＃ｆｉカット
′弁１４によりフィルタ２内への伝達が阻止される。な
お、空気供給装置からの供給空気量は、微量であり、微
粒子の着火、燃焼を阻害するような影響を与えない。In Figure KfIP, while the heat-resistant filter 2 is not clogged, the switching valve 8 is blocked by the bypass path 31, and the pulsating flow cut valve 14 is under the filter fILlI11'! i- When the flow rate control device 15 stops the air supply device 121 when the air supply device 121 is opened, the particulates in the exhaust gas are captured by the filter 2, and when a predetermined clogging condition l1vc is reached, the exhaust pressure sensing device +1112 is activated. and sends a predetermined signal to the actuation IITI control device 15. As a result, the operation control device 12 moves the switching valve 8 and the pulsating flow cut valve 14 to open the bypass path 3, and the filter 2 downstream flow tIF! Control to block it. At the same time, the operation control device 15 starts the heating device 6 and controls the flow rate control device 124 to supply air from the air supply device to the air inlet 9 . When the heating device 6 starts, the P material 5 (fine particles deposited on the P material 5) ignites and burns.
leaks to. The pulsating flow generated in the exhaust pipe 1 reaches the downstream side of the filter 2 via the bypass path 3, but is prevented from being transmitted into the filter 2 by the pulsating flow #fi cut' valve 14. Note that the amount of air supplied from the air supply device is very small, and does not have an effect that inhibits the ignition and combustion of particulates.
以上のように本発明の排気処理装置は、フィルタの上下
流側に切換弁および脈動流カット弁を設け、フィルタに
捕捉した微粒子會看火、燃焼させる＠に、これらの弁を
作動させてフィルタ内を排気流から遮断するように構成
したものであるから、排気流の脈動に影響されることな
く、良好に微粒子を着火、燃焼させることができ、フィ
ルタの再生を良好にする。As described above, the exhaust treatment device of the present invention is provided with a switching valve and a pulsating flow cut valve on the upstream and downstream sides of the filter, and operates these valves to control and burn particulates captured by the filter. Since the inside of the filter is configured to be isolated from the exhaust flow, fine particles can be ignited and burned without being affected by the pulsation of the exhaust flow, and the filter can be regenerated well.
図は、本発明の排気処理装置を示す。
！・・・排気管 ２・・・フィルタ６・・・加
熱装置 ８・・・切換弁１４・・・脈ＩＩＪ流カ
ット弁The figure shows an exhaust treatment device of the present invention. ! ...Exhaust pipe 2...Filter 6...Heating device 8...Switching valve 14...Pulse IIJ flow cut valve
Claims (1)
に切換弁を設けたバイパス路を設け、耐熱Ｆ材に加熱装
置を設け、耐熱Ｐ材の下流側に脈動流カット弁を設け、
耐熱テ材と切換弁および耐熱Ｐ材と脈動流カット弁との
間に空気流入出口を設けた排気処理装置。A filter having a heat-resistant P material is connected to the exhaust pipe, and a bypass passage equipped with a switching valve is provided, a heating device is provided to the heat-resistant F material, and a pulsating flow cut valve is provided on the downstream side of the heat-resistant P material.
An exhaust treatment device in which an air inflow/outlet is provided between a heat-resistant T material and a switching valve, and between a heat-resistant P material and a pulsating flow cut valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57063375A JPS58180714A (en) | 1982-04-16 | 1982-04-16 | Exhaust processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57063375A JPS58180714A (en) | 1982-04-16 | 1982-04-16 | Exhaust processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58180714A true JPS58180714A (en) | 1983-10-22 |
Family
ID=13227477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57063375A Pending JPS58180714A (en) | 1982-04-16 | 1982-04-16 | Exhaust processor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58180714A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4677599A (en) * | 1984-06-20 | 1987-06-30 | Nissan Motor Company, Limited | Ultra-sonic distance measuring apparatus and method |
| US4796911A (en) * | 1983-09-09 | 1989-01-10 | Nissan Motor Company, Ltd. | Automotive suspension system with roll-stabilizer having road condition-dependent torsion modulus, and control of torsional modules |
| JPH02118121U (en) * | 1989-03-13 | 1990-09-21 |
-
1982
- 1982-04-16 JP JP57063375A patent/JPS58180714A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4796911A (en) * | 1983-09-09 | 1989-01-10 | Nissan Motor Company, Ltd. | Automotive suspension system with roll-stabilizer having road condition-dependent torsion modulus, and control of torsional modules |
| US4677599A (en) * | 1984-06-20 | 1987-06-30 | Nissan Motor Company, Limited | Ultra-sonic distance measuring apparatus and method |
| JPH02118121U (en) * | 1989-03-13 | 1990-09-21 |
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