JPH0610123Y2 - Exhaust gas filter regenerator for internal combustion engine - Google Patents
Exhaust gas filter regenerator for internal combustion engineInfo
- Publication number
- JPH0610123Y2 JPH0610123Y2 JP1986115904U JP11590486U JPH0610123Y2 JP H0610123 Y2 JPH0610123 Y2 JP H0610123Y2 JP 1986115904 U JP1986115904 U JP 1986115904U JP 11590486 U JP11590486 U JP 11590486U JP H0610123 Y2 JPH0610123 Y2 JP H0610123Y2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- exhaust gas
- internal combustion
- combustion engine
- burner
- 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.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 24
- 230000001172 regenerating effect Effects 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000008929 regeneration Effects 0.000 description 12
- 238000011069 regeneration method Methods 0.000 description 12
- 230000007935 neutral effect Effects 0.000 description 9
- 239000000446 fuel Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
【考案の詳細な説明】 産業上の利用分野 この考案は、内燃機関用排気ガスフィルタ再生装置、特
に急激過熱によりフィルタを溶損することなく、フィル
タで捕集した微粒子をバーナで効率的に焼却できる内燃
機関用排気ガスフイルタ再生装置に関連する。DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to an exhaust gas filter regenerating device for an internal combustion engine, in particular, it is possible to efficiently incinerate fine particles collected by the filter with a burner without melting the filter by sudden overheating. It relates to an exhaust gas filter regenerator for an internal combustion engine.
従来の技術 内燃機関の排気ガス中に含まれるカーボン等の微粒子を
過して、大気中への微粒子の放出を防止するフイルタ
は、公害防止用フィルタとして公知である。この型式の
フイルタは、例えば、第４図に示すように、内燃機関の
排気管１中に形成された過室２内に配置されたフィル
タ３を有する。フィルタ３は、ハニカム形状を有する多
孔質セラミックで形成される。ハニカム形状を有する型
式のハニカム式フィルタは、例えば、米国特許第4,410,
427号公報又は特開昭５９−１２７６１８号公報に開示
される通り、並置された多数の通気孔を流入口で１つお
きに密封材で充填すると共に、流出口では、流入口で充
填されない通気孔を密封材で充填した構造を有する。排
気管１を通る排気ガス中に含まれる炭素等の可燃性微粒
子は、フイルタ３で捕集される。2. Description of the Related Art A filter for preventing particles such as carbon contained in exhaust gas of an internal combustion engine from being emitted into the atmosphere is known as a pollution prevention filter. This type of filter has, for example, as shown in FIG. 4, a filter 3 which is arranged in an excess chamber 2 formed in an exhaust pipe 1 of an internal combustion engine. The filter 3 is formed of a porous ceramic having a honeycomb shape. Honeycomb filters of the type having a honeycomb shape are, for example, U.S. Pat.
As disclosed in Japanese Patent Laid-Open No. 427 or JP-A-59-127618, a large number of air holes arranged in parallel are filled with a sealing material at every other inlet, and at the outlet, a passage not filled with the inlet is used. It has a structure in which pores are filled with a sealing material. Combustible fine particles such as carbon contained in the exhaust gas passing through the exhaust pipe 1 are collected by the filter 3.
一定期間の使用を通じてフィルタ３に捕集されかつ蓄積
した微粒子は、可燃性付着物を形成し、フイルタ３は、
目詰りを生ずる。そこで、フイルタ３に隣接するバーナ
４の作動により、目詰りの原因である可燃性付着物は燃
焼され、フィルタ３は再生される。バーナ４は、グロー
プラグ５と、燃料供給管１０を通じてバーナ４へ供給さ
れる燃料供給量を制御する電磁制御式インジェクタ６と
を有する。The particles collected and accumulated in the filter 3 through use for a certain period of time form a combustible deposit, and the filter 3 is
Causes clogging. Then, by operating the burner 4 adjacent to the filter 3, the combustible deposit that causes the clogging is burned and the filter 3 is regenerated. The burner 4 has a glow plug 5 and an electromagnetically controlled injector 6 that controls the amount of fuel supplied to the burner 4 through the fuel supply pipe 10.
フイルタ３の上記目詰り状態は、過室２の入口部７に
設けられた圧力センサ８によって検出される。即ち、フ
ィルタ３では微粒子の捕集量の増加に伴って可燃性付着
物の蓄積量が増加し、フィルタ３の入口部７の排気ガス
圧力が上昇するから、この排気ガス圧力が一定レベル以
上に上昇したとき、目詰りと決定し、バーナ４を作動し
て可燃性付着物の燃焼を行う。目詰りの原因である可燃
性付着物を除去しフィルタ３を再生するとき、フィルタ
３に隣接するバーナ４をグロープラグ５によって点火
し、燃料ポンプから燃料をバーナ４のインジェクタ６に
供給することにより、バーナ４を加熱してフイルタ内の
捕集粒子を燃焼し、フイルタを再生する。バーナ４によ
る加熱時には、温度センサ９によりバーナ４の燃焼温度
が常時測定される。燃焼温度が高いとき、バーナ４への
燃料供給量が減少され、燃焼温度が低いとき、燃料供給
量が増加される。The clogging state of the filter 3 is detected by the pressure sensor 8 provided at the inlet portion 7 of the excess chamber 2. That is, in the filter 3, the accumulated amount of combustible deposits increases as the amount of trapped particulates increases, and the exhaust gas pressure at the inlet portion 7 of the filter 3 rises, so that this exhaust gas pressure rises above a certain level. When the temperature rises, it is determined that clogging has occurred, and the burner 4 is activated to burn combustible deposits. When the combustible deposits that are the cause of clogging are removed and the filter 3 is regenerated, the burner 4 adjacent to the filter 3 is ignited by the glow plug 5 and fuel is supplied from the fuel pump to the injector 6 of the burner 4. , The burner 4 is heated to burn the trapped particles in the filter to regenerate the filter. During heating by the burner 4, the temperature sensor 9 constantly measures the combustion temperature of the burner 4. When the combustion temperature is high, the fuel supply amount to the burner 4 is reduced, and when the combustion temperature is low, the fuel supply amount is increased.
考案が解決しようとする問題点 上記再生用バーナを有する内燃機関用排気ガスフィルタ
再生装置では、バーナにより排気ガス温度を上昇する
と、フィルタの中央部に温度の高い排気ガス流が集中す
る傾向がある。即ち、一般に、半径r0の滑らかな水平円
管内を粘性流体が層流状態で流れている場合、管の中心
における最大流速をＵとすると、半径ｒ部分での流速ｕ
は、下記の式： ｕ＝Ｕ｛１−（ｒ／r0）２｝ で表されるから、円管路中を流れる流体の速度分布は、
流体力学上、管壁からの距離の二乗に比例するパラボラ
状となる。この流体理論を適用すると、フィルタ３内で
は中心部が最も流速が大きく、中心部から管壁１６に向
かって２次曲線的に流速が減少する。従って、バーナの
燃焼時にフィルタ３内の各部に供給される熱量は、各部
を流れる排気ガス流量に比例するから、必然的にフィル
タ３の中心部が急激に加熱されることになる。Problems to be Solved by the Invention In the exhaust gas filter regenerating apparatus for an internal combustion engine having the regeneration burner, when the exhaust gas temperature is increased by the burner, the exhaust gas flow having a high temperature tends to be concentrated in the central portion of the filter. . That is, in general, when a viscous fluid is flowing in a laminar flow state in a smooth horizontal circular pipe having a radius r 0 , if the maximum flow velocity at the center of the pipe is U, then the flow velocity u at the radius r portion.
Is represented by the following equation: u = U {1- (r / r 0 ) 2 } Therefore, the velocity distribution of the fluid flowing in the circular conduit is
In terms of fluid mechanics, it has a parabolic shape proportional to the square of the distance from the pipe wall. When this fluid theory is applied, the flow velocity in the central portion is the highest in the filter 3, and the flow velocity decreases in a quadratic curve from the central portion toward the pipe wall 16. Therefore, since the amount of heat supplied to each part in the filter 3 at the time of combustion of the burner is proportional to the flow rate of the exhaust gas flowing through each part, the center part of the filter 3 is inevitably abruptly heated.
また、フィルタ３の放熱状態を考えると、管壁１６に隣
接するフィルタ３の外周部が低温外気によって冷却され
るため、フィルタ３内では管壁１６に近い程放熱量が大
きく、これに伴って温度上昇が妨げられる。従って、一
般にフィルタ３の外側程再生効率が低下する現象が認め
られる。Further, considering the heat radiation state of the filter 3, the outer peripheral portion of the filter 3 adjacent to the pipe wall 16 is cooled by the low temperature outside air, so that the heat radiation amount is larger in the filter 3 as it is closer to the pipe wall 16, and accordingly. The temperature rise is hindered. Therefore, in general, a phenomenon in which the regeneration efficiency is lowered toward the outside of the filter 3 is recognized.
ところで、最大排気ガス流量を発生する許容最大回転数
で内燃機関を稼動するとき、フィルタ３で排気ガスの圧
力損失が高くならないように、通常、フィルタ３の排気
ガス有効過面積を充分に大きく確保するように設計さ
れている。この要求に合致するように設計したフィルタ
は、有効過面積が大きく、排気ガス流量の少ない低回
転数で内燃機関を稼動する場合、フィルタ内の排気ガス
の流速が低下し、このため、排気ガスの流入によるフィ
ルタへの冷却効果が低下する。従って、バーナの作動に
よる再生時に低回転数で内燃機関が稼動する場合、フィ
ルタが短時間に急激に加熱されるため、フィルタ内に溶
損又は亀裂が発生することがある。By the way, when the internal combustion engine is operated at the maximum permissible rotation speed that produces the maximum exhaust gas flow rate, the exhaust gas effective excess area of the filter 3 is usually sufficiently large so that the pressure loss of the exhaust gas does not become high in the filter 3. Is designed to A filter designed to meet this requirement has a large effective excess area, and when operating the internal combustion engine at a low rotational speed with a small exhaust gas flow rate, the flow velocity of exhaust gas in the filter decreases The cooling effect on the filter due to the inflow of water decreases. Therefore, when the internal combustion engine operates at a low rotational speed during regeneration due to the operation of the burner, the filter is rapidly heated in a short time, which may cause melting damage or cracks in the filter.
この考案は、上記欠点を解消し、フィルタ内に溶損を発
生することなく、フィルタ内の捕集微粒子をバーナで効
率的に焼却できる内燃機関用排気ガスフイルタ再生装置
を提供することを目的とする。An object of the present invention is to provide an exhaust gas filter regenerator for an internal combustion engine that solves the above-mentioned drawbacks and can efficiently incinerate the collected particulates in the filter by a burner without causing melting loss in the filter. .
問題点を解決するための手段 流入出口を設けたケース内にフィルタを配設し、該フィ
ルタの上流側に該フィルタと対面するバーナを設けた内
燃機関用排気ガスフィルタ再生装置において、上記フィ
ルタの前面のケースの管壁に、上記フィルタに接触する
ことなく所定の間隔を保持させて回転軸を挿設するとと
もに回動可能に支持し、該回転軸に遮蔽板を固定して成
り、バーナの作動中に、フィルタの前面の１／２を遮蔽
板で覆うようにする作動機構を設けた構成としたもので
ある。Means for Solving the Problems In an exhaust gas filter regenerator for an internal combustion engine, wherein a filter is arranged in a case having an inflow / outlet port, and a burner facing the filter is provided on the upstream side of the filter. On the tube wall of the front case, a rotary shaft is inserted and held rotatably at a predetermined interval without coming into contact with the filter and rotatably supported, and a shield plate is fixed to the rotary shaft. During operation, an operation mechanism is provided to cover half of the front surface of the filter with a shielding plate.
（作用） フィルタが所定の目づまり状態に至ると、バーナが作動
し排気ガスを加熱する。同時に、回転軸が回動しフィル
タの前面の１／２を遮蔽板が覆う。排気ガスは、フィル
タの前面で絞られ流速を上げ、フィルタの外周部へも廻
流し、フィルタを加温する。フィルタに捕捉された微粒
子が着火、燃焼すると、フィルタの温度は上昇するが、
低回転機関作動時の低流量時でも、フィルタを流通する
際の排気ガス流速は、増加しているから、フィルタを冷
却させる。(Operation) When the filter reaches a predetermined clogging state, the burner operates to heat the exhaust gas. At the same time, the rotating shaft rotates to cover the front half of the filter with the shielding plate. The exhaust gas is squeezed at the front surface of the filter to increase the flow velocity, and also circulates to the outer peripheral portion of the filter to heat the filter. When the particles trapped in the filter ignite and burn, the temperature of the filter rises,
Even when the flow rate is low during operation of the low-speed engine, the exhaust gas flow rate when flowing through the filter is increasing, so the filter is cooled.
実施例 以下、この考案の実施例を第１図ないし第３図について
説明する。これらの図面では、第４図に示す部分と同一
の部分については同一符号を付し、説明を省略する。Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. In these drawings, the same parts as those shown in FIG. 4 are designated by the same reference numerals and the description thereof will be omitted.
第１図及び第２図に示すように、この考案の内燃機関用
排気ガスフィルタ再生装置は、流入出口を有し管壁１６
を有するケース内に、フィルタ３が配設され、該フィル
タの上流側に該フィルタと対面するバーナ４が設けられ
ている。フィルタ３とバーナ４との間の管壁１６には、
フィルタ３の入口面に接触することなく所定の間隔を保
持させて回転軸１５が挿設されるとともに回転可能に支
持され、該回転軸に遮蔽板１４が固定される。回転軸１
５は、遮蔽板１４がフィルタ３の前面面積の一部すなわ
ち左側半分（１／２）を覆う第一遮蔽位置１１、フィル
タ３の前面面積の他部すなわち右側半分（１／２）を覆
う第二遮蔽位置１２及びフィルタ３を覆わない中立位置
１３に回動可能になっている。遮蔽板１４が第一遮蔽位
置１１、あるいは第二遮蔽位置１２に位置する状態下で
は、遮蔽板１４とフィルタ３との間に空隙が形成される
ことになる。フィルタ３の長さ方向と直角に遮蔽板１４
が配置される第一遮蔽位置１１は、第２図の左側に遮蔽
板１４を回転した場合である。フィルタ３の長さ方向と
平行な中立位置１３は、第１図のようにフィルタ３の左
右両側とも閉鎖されない場合である。中立位置１３と直
角な第二遮蔽位置１２は、遮蔽板１４を第一遮蔽位置１
１から中立位置１３を通り約１８０°の角度で回転した
第２図で右側の位置にある。遮蔽板１４は、耐熱性金属
板又はセラミック材で形成され、少なくとも８００〜９
００℃に耐えられる材料が使用される。As shown in FIGS. 1 and 2, the exhaust gas filter regenerating apparatus for an internal combustion engine according to the present invention has an inlet / outlet and a pipe wall 16
The filter 3 is disposed in the case having the above, and the burner 4 facing the filter is provided on the upstream side of the filter. On the tube wall 16 between the filter 3 and the burner 4,
The rotary shaft 15 is inserted and rotatably supported while maintaining a predetermined distance without contacting the inlet surface of the filter 3, and the shield plate 14 is fixed to the rotary shaft. Rotating shaft 1
5 is the first shielding position 11 where the shield plate 14 covers a part of the front surface area of the filter 3, that is, the left half (1/2), and the first shield position 11 which covers the other part of the front surface area of the filter 3, that is, the right half (1/2). The second shielding position 12 and the neutral position 13 that does not cover the filter 3 are rotatable. Under the state where the shield plate 14 is located at the first shield position 11 or the second shield position 12, a gap is formed between the shield plate 14 and the filter 3. The shield plate 14 is perpendicular to the length direction of the filter 3.
The first shielding position 11 in which is arranged is the case where the shielding plate 14 is rotated to the left side in FIG. The neutral position 13 parallel to the length direction of the filter 3 is a case where neither the left or right side of the filter 3 is closed as shown in FIG. The second shielding position 12 at right angles to the neutral position 13 places the shielding plate 14 at the first shielding position 1
It is in the position on the right side in FIG. 2 rotated from 1 through the neutral position 13 at an angle of about 180 °. The shield plate 14 is made of a heat-resistant metal plate or a ceramic material, and is at least 800-9.
Materials that can withstand 00 ° C are used.
半円形の遮蔽板１４は、フィルタ３の長さ方向に対し直
角にかつ回転可能に支持された回転軸１５に固定され
る。回転軸１５の両端は、管壁１６に取付けられた一対
の軸受１７で回転可能に支持される。回転軸１５の一端
部１８には、回転軸１５を作動するモータが減速手段１
９を介して接続される。フィルタ３が目づまり状態に至
ると、圧力センサ８がそれを検知し、バーナ４を作動さ
せる。同時に回転軸１５は、モータが始動することによ
り、回動し、遮蔽板１４を上記のような第一、第二遮蔽
位置１１、１２へ移動させる。このような制御は、周知
の手段によりなし得る。The semicircular shield plate 14 is fixed to a rotating shaft 15 which is rotatably supported at right angles to the length direction of the filter 3. Both ends of the rotary shaft 15 are rotatably supported by a pair of bearings 17 attached to the pipe wall 16. At one end 18 of the rotary shaft 15, a motor for operating the rotary shaft 15 is provided with a speed reducing means 1.
It is connected via 9. When the filter 3 reaches the clogged state, the pressure sensor 8 detects it and operates the burner 4. At the same time, the rotation shaft 15 is rotated by the start of the motor to move the shield plate 14 to the first and second shield positions 11 and 12 as described above. Such control can be performed by known means.
上記構成において、再生時には、まずフィルタ３の前面
面積の第２図で左側に示す一部を覆う第一遮蔽位置１１
に遮蔽板１４を保持して、第２図で右側に示すフィルタ
３の前面面積の他部からフィルタ３内にバーナ４の作動
による高温ガスを約３〜５分間供給する。この場合、フ
ィルタ３を流れる排気ガスの断面積は、遮蔽板１４を中
立位置１３にした場合の半分である。従って、フィルタ
３内を通る高温ガスの流速は２倍に増加し、フィルタ３
の外側部に近い部分でも高温ガスの流速が大きくなる。
次に、遮蔽板１４を第二遮蔽位置１２に１８０°の角度
回動して、フィルタ３の全面面積の他部（第２図右側）
を覆い、先に覆ったフィルタ３の全面の前記一部（第２
図左側）からフィルタ３内に高温ガスを３〜５分間供給
する。遮蔽板１４の切り換え時間を３〜５分に設定する
のは、通常の再生テストの結果から再生開始後２〜３分
間でフィルタ３内の微粒子燃焼温度が最大となるので、
その後遮蔽板１４を切り換えた方がフィルタ３内に捕集
微粒子の急激燃焼が発生せず、より安全に再生を行うこ
とができるからである。バーナ４が非作動状態にあり再
生を行わないときは、排気ガスを円滑に通過するため遮
蔽板１４は中立位置１３に保持される。In the above configuration, at the time of regeneration, first, the first shielding position 11 that covers a part of the front surface area of the filter 3 shown on the left side in FIG.
While holding the shielding plate 14 on, the high temperature gas by the operation of the burner 4 is supplied into the filter 3 from another portion of the front surface area of the filter 3 shown on the right side in FIG. In this case, the cross-sectional area of the exhaust gas flowing through the filter 3 is half that when the shielding plate 14 is in the neutral position 13. Therefore, the flow rate of the hot gas passing through the filter 3 is doubled,
The flow velocity of the high-temperature gas increases even in the portion near the outer side of the.
Next, the shield plate 14 is rotated to the second shield position 12 by an angle of 180 °, and the other part of the entire surface area of the filter 3 (the right side in FIG. 2).
Of the entire surface of the filter 3 previously covered (second
Hot gas is supplied into the filter 3 from the left side of the figure for 3 to 5 minutes. The reason why the switching time of the shield plate 14 is set to 3 to 5 minutes is that the particulate combustion temperature in the filter 3 becomes the maximum within 2 to 3 minutes after the start of regeneration from the result of the normal regeneration test.
This is because if the shielding plate 14 is switched thereafter, rapid combustion of the collected particulates does not occur in the filter 3 and regeneration can be performed more safely. When the burner 4 is in an inoperative state and regeneration is not performed, the exhaust plate smoothly passes the exhaust gas, so that the shield plate 14 is held at the neutral position 13.
この考案の実施例では、フィルタ３の前面面積を再生時
のみ１／２とするため、フィルタ３の単位面積当りの排
気ガス流量が増加し、かつ中央部に高温ガスが集中する
ことを防止できるので、次の利点が得られる。In the embodiment of the present invention, the front surface area of the filter 3 is halved only during regeneration, so that the exhaust gas flow rate per unit area of the filter 3 is increased and the high temperature gas can be prevented from being concentrated in the central portion. Therefore, the following advantages are obtained.
管壁に隣接するフィルタ３の外側部まで充分に加熱さ
れ、フィルタ３全体の再生効率が２０〜３０％向上す
る。フィルタ３全体としては、約９０％以上の再生効率
が得られる。The outer portion of the filter 3 adjacent to the tube wall is sufficiently heated, and the regeneration efficiency of the entire filter 3 is improved by 20 to 30%. As a whole of the filter 3, a regeneration efficiency of about 90% or more can be obtained.
内燃機関の低回転時において排気ガス流量が少ないと
きでも、排気ガスの流速が２倍となるので、微粒子の燃
焼による発熱があってもフィルタの溶損又は亀裂が発生
しない。Even when the flow rate of the exhaust gas is low when the internal combustion engine is operating at low speed, the flow velocity of the exhaust gas is doubled, so that even if heat is generated due to combustion of the fine particles, the filter will not be melted or cracked.
この考案の上記実施例は、変更が可能である。例えば遮
蔽板１４を円形以外の矩形に成形することができる。ま
た、第３図に示すように、２枚の遮蔽板１４ａ、１４ｂ
を設けて中立位置と第一遮蔽位置及び中立位置と第二遮
蔽位置とを個別に開閉することも可能である。The above embodiments of this invention can be modified. For example, the shielding plate 14 can be formed in a rectangular shape other than the circular shape. Further, as shown in FIG. 3, two shield plates 14a and 14b are provided.
It is also possible to separately open and close the neutral position and the first shielding position, and the neutral position and the second shielding position.
考案の効果 この考案では、フィルタの前面の１／２（半分）を選択
的に覆うことができる遮蔽板をフィルタの前面に回転可
能に設けたので、フィルタの中心部から外側部にいたる
まで均一に加熱し捕集微粒子を焼却でき、フィルタの再
生効率を向上させるとともにフィルタの溶損を防止す
る。Effect of the Invention In this invention, since a shielding plate that can selectively cover half (half) of the front surface of the filter is rotatably provided on the front surface of the filter, it is even from the center to the outer side of the filter. The particles can be incinerated by heating to a high temperature to improve the regeneration efficiency of the filter and prevent the filter from being melted.
第１図は、この考案による内燃機関用排気ガスフィルタ
再生装置の断面図、第２図は第１図のＡ−Ａ線に沿う断
面図、第３図はこの考案の他の実施例を示す部分図、第
４図は、従来の内燃機関用排気ガスフィルタ再生装置の
断面図を示す。 １……排気管、２……過室、３……フィルタ、４……
バーナ、１１……第一遮蔽位置、１２……第二遮蔽位
置、１３……中立位置、１４……遮蔽板、１５……回転
軸、1 is a sectional view of an exhaust gas filter regenerating apparatus for an internal combustion engine according to the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 shows another embodiment of the present invention. Partial view and FIG. 4 are sectional views of a conventional exhaust gas filter regenerating apparatus for an internal combustion engine. 1 ... Exhaust pipe, 2 ... Overroom, 3 ... Filter, 4 ...
Burner, 11 ... First shielding position, 12 ... Second shielding position, 13 ... Neutral position, 14 ... Shielding plate, 15 ... Rotating shaft,
Claims (1)
設し、該フィルタの上流側に該フィルタと対面するバー
ナを設けた内燃機関用排気ガスフィルタ再生装置におい
て、上記フィルタの前面のケースの管壁に、上記フィル
タに接触することなく所定の間隔を保持させて回転軸を
挿設するとともに回動可能に支持し、該回転軸に遮蔽板
を固定して成り、バーナの作動中に、フィルタの前面の
１／２を遮蔽板で覆うようにする作動機構を設けた内燃
機関用排気ガスフィルタ再生装置。1. An exhaust gas filter regenerator for an internal combustion engine, wherein a filter is provided in a case having an inflow / outlet port, and a burner facing the filter is provided on the upstream side of the filter. The rotary shaft is inserted into the pipe wall of the above while maintaining a predetermined interval without contacting the filter, and is rotatably supported, and a shield plate is fixed to the rotary shaft. An exhaust gas filter regenerating device for an internal combustion engine, which is provided with an operating mechanism that covers a front half of the filter with a shielding plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986115904U JPH0610123Y2 (en) | 1986-07-30 | 1986-07-30 | Exhaust gas filter regenerator for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986115904U JPH0610123Y2 (en) | 1986-07-30 | 1986-07-30 | Exhaust gas filter regenerator for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6322314U JPS6322314U (en) | 1988-02-15 |
| JPH0610123Y2 true JPH0610123Y2 (en) | 1994-03-16 |
Family
ID=30999996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986115904U Expired - Lifetime JPH0610123Y2 (en) | 1986-07-30 | 1986-07-30 | Exhaust gas filter regenerator for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610123Y2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5779210A (en) * | 1980-11-05 | 1982-05-18 | Toyota Motor Corp | Combustion device for fine particles in exhaust gas |
| JPS603223U (en) * | 1983-06-22 | 1985-01-11 | マツダ株式会社 | Diesel engine exhaust purification device |
| JPS6020803U (en) * | 1983-07-19 | 1985-02-13 | 美津濃株式会社 | P leather for baseball shoes |
-
1986
- 1986-07-30 JP JP1986115904U patent/JPH0610123Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6322314U (en) | 1988-02-15 |
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