JP2003328863A - EGR device - Google Patents
EGR deviceInfo
- Publication number
- JP2003328863A JP2003328863A JP2002136162A JP2002136162A JP2003328863A JP 2003328863 A JP2003328863 A JP 2003328863A JP 2002136162 A JP2002136162 A JP 2002136162A JP 2002136162 A JP2002136162 A JP 2002136162A JP 2003328863 A JP2003328863 A JP 2003328863A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- egr
- shell
- inlet
- egr device
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- F02M26/32—Liquid-cooled heat exchangers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
(57)【要約】
【課題】 ＥＧＲクーラで発生する排気ガスの凝縮水に
よりＥＧＲ装置の部品が腐食される恐れのないＥＧＲ装
置を提供する。
【解決手段】 シェル(21)の軸方向両端部にプレート(2
2,22)を固着し、軸方向に並列に配置した多数のチュー
ブ(23)の両端部を、貫通してプレート(22,22)に固着す
る。シェル(21)の軸方向の一端部に排気ガス入口(32)を
有する入口ボンネット(30)を固着し、排気ガス通路の底
部(34)をシェル(21)の底面と同一面もしくは下向きに形
成する。シェル(21)の軸方向の他端部に排気ガス出口(3
3)を有する椀状の出口ボンネット(31)を固着してＥＧＲ
クーラ(20)を構成する。ＥＧＲクーラ(20)のシェル(21)
底面を角度θ（少なくとも５°）だけ排気ガス入口(32)
側を下にして配置する。
(57) An object of the present invention is to provide an EGR device in which components of the EGR device are not likely to be corroded by condensed water of exhaust gas generated in an EGR cooler. A plate (2) is provided at both axial ends of a shell (21).
2, 22) are fixed, and both ends of a large number of tubes (23) arranged in parallel in the axial direction are penetrated and fixed to the plates (22, 22). An inlet bonnet (30) having an exhaust gas inlet (32) is fixed to one end of the shell (21) in the axial direction, and the bottom (34) of the exhaust gas passage is formed flush with the bottom surface of the shell (21) or downward. I do. The other end of the shell (21) in the axial direction has an exhaust gas outlet (3
EGR by fixing a bowl-shaped outlet bonnet (31) having 3)
It constitutes a cooler (20). EGR cooler (20) shell (21)
Exhaust gas inlet (32) with bottom angle θ (at least 5 °)
Place side down.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、吸気に再循環させ
るエンジンの排気ガスを冷却し、効率的に窒素酸化物の
発生を低減させるＥＧＲクーラを備えたＥＧＲ装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an EGR device equipped with an EGR cooler that cools exhaust gas of an engine recirculated to intake air and efficiently reduces generation of nitrogen oxides.
【０００２】[0002]
【従来の技術】従来より、エンジンの排気ガスの一部を
吸気に再循環させて窒素酸化物の発生を低減させるＥＧ
Ｒ装置が知られている。このようなＥＧＲ装置では、再
循環させる排気ガスの温度を低下させると容積が小さく
なり、エンジン出力をあまり低下させずに燃焼温度を低
下させ、効果的に窒素酸化物の発生を低減させることが
できる。そのため、排気ガス再循環ラインにＥＧＲクー
ラを設け、排気ガスを冷却するようにしたものがある。2. Description of the Related Art Conventionally, an EG for reducing the generation of nitrogen oxides by recirculating a part of engine exhaust gas to intake air
R devices are known. In such an EGR device, when the temperature of the exhaust gas to be recirculated is decreased, the volume becomes small, the combustion temperature is decreased without significantly decreasing the engine output, and the generation of nitrogen oxides can be effectively reduced. it can. Therefore, there is an exhaust gas recirculation line provided with an EGR cooler to cool the exhaust gas.
【０００３】図２は、ＥＧＲクーラ付きＥＧＲ装置を備
えた、ターボチャージャ付きエンジン１の概略構成図で
ある。図２において、ターボチャージャ２のコンプレッ
サ２ａの吸入口には吸気管３が取付けられ、コンプレッ
サ２ａの排出口とエンジン１の吸気マニホールド５とは
供給管４により接続されている。エンジン１の排気マニ
ホールド６の排出口にはターボチャージャ２のタービン
２ｂが接続され、タービン２ｂの排出口には排気管７が
取付けられている。排気マニホールド６のタービン２ｂ
の上流部と、吸気マニホールド５の上流部とはＥＧＲ配
管１１により接続され、ＥＧＲ配管１１にはＥＧＲバル
ブ１２およびＥＧＲクーラ２０が介装され、ＥＧＲ装置
１０を構成している。FIG. 2 is a schematic configuration diagram of an engine 1 with a turbocharger equipped with an EGR device with an EGR cooler. In FIG. 2, an intake pipe 3 is attached to the intake port of the compressor 2a of the turbocharger 2, and the exhaust port of the compressor 2a and the intake manifold 5 of the engine 1 are connected by a supply pipe 4. The turbine 2b of the turbocharger 2 is connected to the exhaust port of the exhaust manifold 6 of the engine 1, and the exhaust pipe 7 is attached to the exhaust port of the turbine 2b. Turbine 2b of exhaust manifold 6
The upstream portion of the intake manifold 5 and the upstream portion of the intake manifold 5 are connected by an EGR pipe 11, and an EGR valve 12 and an EGR cooler 20 are provided in the EGR pipe 11 to form an EGR device 10.
【０００４】次に作動について説明する。エンジン１を
始動すると空気は吸気管３から吸入され、コンプレッサ
２ａにより圧縮されて吸気マニホールド５を介してエン
ジン１内に供給される。エンジン１内で燃焼し、発生し
た排気ガスは排気マニホールド６からタービン２ｂを経
て排気管７から排出される。通常状態においては、排気
ガス圧力は吸気圧力より高いため、ＥＧＲバルブ１２を
開くと排気ガスの一部はＥＧＲ配管１１を経て吸気マニ
ホールド５に戻される。このとき排気ガスはＥＧＲクー
ラ２０により冷却される。ＥＧＲバルブ１２は必要に応
じて開閉される。Next, the operation will be described. When the engine 1 is started, air is taken in through the intake pipe 3, compressed by the compressor 2 a, and supplied into the engine 1 through the intake manifold 5. Exhaust gas generated by combustion in the engine 1 is discharged from the exhaust manifold 6 through the turbine 2b and the exhaust pipe 7. In the normal state, the exhaust gas pressure is higher than the intake pressure, so when the EGR valve 12 is opened, part of the exhaust gas is returned to the intake manifold 5 via the EGR pipe 11. At this time, the exhaust gas is cooled by the EGR cooler 20. The EGR valve 12 is opened and closed as needed.
【０００５】ＥＧＲクーラについては各種のものがある
が、その一例として特開２００１−７４３８０号公報に
開示されたものが有る。図３は特開２００１−７４３８
０号公報に開示されたＥＧＲクーラ４０の側面断面図で
あり、図４は図３のＸ−Ｘ矢視図である。図３、図４に
おいて、円筒状に形成されたシェル２１の軸方向の両端
部には、プレート２２，２２が固着され、各プレート２
２，２２には、シェル２１の内部に軸方向にほぼ並列し
て配置された多数のチューブ２３の両端部が貫通状態で
固着されている。そしてシェル２１の一側の端部近傍に
は冷却水入口２４が取付けられ、シェル２１の他側の端
部近傍には冷却水出口２５が取付けられている。また、
シェル２１の、冷却水入口２４に対向する位置にはバイ
パス出口２６が設けられている。シェル２１の軸方向の
両端部には、椀状に形成された入口ボンネット４１及び
出口ボンネット３１が、プレート２２，２２を覆うよう
に固着されている。入口ボンネット４１の中央部には排
気ガス入口３２が設けられ、出口ボンネット３０の中央
部には排気ガス出口３３が設けられている。There are various types of EGR coolers, one of which is disclosed in Japanese Patent Laid-Open No. 2001-74380. FIG. 3 shows JP 2001-7438 A.
FIG. 4 is a side cross-sectional view of the EGR cooler 40 disclosed in Japanese Patent Laid-Open No. 0-Gazette, and FIG. 4 is a view on arrow XX in FIG. In FIGS. 3 and 4, plates 22 are fixed to both axial ends of a shell 21 formed in a cylindrical shape.
Both ends of a large number of tubes 23, which are arranged substantially parallel to each other in the axial direction inside the shell 21, are fixed to the terminals 2 and 22 in a penetrating state. A cooling water inlet 24 is attached near one end of the shell 21, and a cooling water outlet 25 is attached near the other end of the shell 21. Also,
A bypass outlet 26 is provided at a position of the shell 21 facing the cooling water inlet 24. A bowl-shaped inlet bonnet 41 and an outlet bonnet 31 are fixed to both ends of the shell 21 in the axial direction so as to cover the plates 22 and 22. An exhaust gas inlet 32 is provided at the center of the inlet bonnet 41, and an exhaust gas outlet 33 is provided at the center of the outlet bonnet 30.
【０００６】ＥＧＲクーラ４０はシェル２１が水平にな
るように配置され、再循環用排気ガスは排気ガス入口３
２から入ってチューブ２３内を通過し、排気ガス出口３
３から排出される。冷却水は冷却水入口２４から入って
シェル２１内を通り、冷却水出口２５から排出されると
共に、一部はバイパス出口２６から排出され、その間に
排気ガスを冷却する。その際、冷却水の一部はバイパス
出口２６から排出されるため、この部分の冷却水のよど
みが無くなり、ＥＧＲクーラ２０ａの冷却効率を向上す
るようになっている。The EGR cooler 40 is arranged so that the shell 21 is horizontal, and the exhaust gas for recirculation is exhaust gas inlet 3
2 enters and passes through the tube 23, and the exhaust gas outlet 3
Emitted from 3. The cooling water enters through the cooling water inlet 24, passes through the inside of the shell 21, is discharged from the cooling water outlet 25, and is partially discharged from the bypass outlet 26, while cooling the exhaust gas. At this time, a part of the cooling water is discharged from the bypass outlet 26, so that the stagnation of the cooling water in this part is eliminated and the cooling efficiency of the EGR cooler 20a is improved.
【０００７】[0007]
【発明が解決しようとする課題】排気ガスを冷却すると
凝縮水が発生する。この凝縮水中には硝酸や、燃料成分
中の硫黄分と結びついた硫酸が含まれる。特に硫酸は腐
食性が高く、ＥＧＲ回路の部品であるＥＧＲクーラや、
配管、ＥＧＲバルブ等を腐食する。図３において、入口
ボンネット４１内のＡ部の排気ガス温度は高く（例えば
エンジン負荷時には４００℃〜５００℃）、凝縮水が発
生することはないが、出口ボンネット３１内のＢ部の排
気ガス温度は低下するため、排気ガス出口３３側で凝縮
水が発生する。When exhaust gas is cooled, condensed water is generated. This condensed water contains nitric acid and sulfuric acid combined with the sulfur content in the fuel component. In particular, sulfuric acid is highly corrosive, and the EGR cooler, which is a component of the EGR circuit,
Corrodes piping and EGR valve. In FIG. 3, the exhaust gas temperature of the portion A in the inlet bonnet 41 is high (for example, 400 ° C. to 500 ° C. when the engine is loaded), and condensed water is not generated, but the exhaust gas temperature of the portion B in the outlet bonnet 31 is high. Decreases, so that condensed water is generated on the exhaust gas outlet 33 side.
【０００８】すなわち、上記構成においては、図３に示
すＥＧＲクーラ４０の出口ボンネット３１側の底部Ｃ
（破線のハッチングで示す）近傍に凝縮水が溜まり、Ｅ
ＧＲクーラ４０が腐食する恐れがある。また、この凝縮
水が図２に示すＥＧＲ配管１１やＥＧＲバルブ１２を腐
食させる恐れがある。That is, in the above structure, the bottom portion C of the EGR cooler 40 shown in FIG.
Condensed water collects in the vicinity (indicated by hatching with broken lines), and E
The GR cooler 40 may be corroded. Further, this condensed water may corrode the EGR pipe 11 and the EGR valve 12 shown in FIG.
【０００９】本発明は、上記の問題点に着目してなされ
たものであり、ＥＧＲクーラで発生する排気ガスの凝縮
水によりＥＧＲ装置の部品が腐食される恐れのないＥＧ
Ｒ装置を提供することを目的としている。The present invention has been made by paying attention to the above problems, and there is no possibility that the components of the EGR device will be corroded by the condensed water of the exhaust gas generated in the EGR cooler.
It is intended to provide an R device.
【００１０】[0010]
【課題を解決するための手段、作用及び効果】上記の目
的を達成するために、第１発明は、ＥＧＲ装置におい
て、ＥＧＲ配管に介装されたＥＲＧクーラの排気ガス通
路を、排気ガス入口側を排気ガス出口側より下になるよ
うに配置した構成としている。In order to achieve the above-mentioned object, a first aspect of the present invention is to provide an EGR device in which an exhaust gas passage of an ERG cooler interposed in an EGR pipe is connected to an exhaust gas inlet side. Is arranged below the exhaust gas outlet side.
【００１１】第１発明によると、硝酸や硫酸を含んだ排
気ガスの凝縮水は、排気ガス温度の高い排気ガス入口側
に流れる。硫酸は３５０℃以上になると分解する性質を
持っており、排気ガス入口側に流れた硫酸は高温の排気
ガスによって分解、蒸発するため、ＥＧＲ装置の部品の
腐食を防止できる。According to the first invention, the condensed water of the exhaust gas containing nitric acid and sulfuric acid flows to the exhaust gas inlet side where the exhaust gas temperature is high. Sulfuric acid has a property of decomposing at a temperature of 350 ° C. or higher, and the sulfuric acid flowing to the exhaust gas inlet side is decomposed and evaporated by the high-temperature exhaust gas, so that corrosion of parts of the EGR device can be prevented.
【００１２】第２発明は、第１発明において、前記排気
ガス通路が、前記排気ガス入口側を下にして水平面に対
して少なくとも５°傾斜している構成としている。According to a second aspect of the present invention, in the first aspect, the exhaust gas passage is inclined at least 5 ° with respect to the horizontal plane with the exhaust gas inlet side facing down.
【００１３】第２発明によると、排気ガス通路の底部
を、排気ガス入口側を下にして水平面に対して少なくと
も５°傾斜させたため、凝縮水は確実に排気ガス入口側
に流れる。したがって、硫酸は高温排気ガスによって分
解、蒸発し、ＥＧＲ装置の部品の腐食を防止できる。な
お、排気ガス通路を５°以上傾斜させることにより凝縮
水が確実に流れることは実験的に確かめられている。According to the second aspect of the invention, the bottom of the exhaust gas passage is inclined at least 5 ° with respect to the horizontal plane with the exhaust gas inlet side facing down, so that the condensed water flows reliably to the exhaust gas inlet side. Therefore, the sulfuric acid is decomposed and evaporated by the high temperature exhaust gas, and the corrosion of the parts of the EGR device can be prevented. It has been experimentally confirmed that the condensed water surely flows by inclining the exhaust gas passage by 5 ° or more.
【００１４】第３発明は、第１又は第２発明において、
前記排気ガス通路の底部を、前記排気ガス出口側から前
記排気ガス入口側に向けて、順次低くなるように形成し
た構成としている。A third invention is the same as the first or second invention,
The bottom portion of the exhaust gas passage is formed so as to be gradually lowered from the exhaust gas outlet side toward the exhaust gas inlet side.
【００１５】第３発明によると、排気ガス通路の底部の
途中に高い部分がないため、凝縮水が排気ガス通路の途
中で滞留することはなく、排気ガス入口に向けて確実に
流すことができる。According to the third aspect of the invention, since there is no high portion in the middle of the bottom of the exhaust gas passage, condensed water does not stay in the middle of the exhaust gas passage and can reliably flow toward the exhaust gas inlet. .
【００１６】[0016]
【発明の実施の形態】以下に本発明に係るＥＧＲ装置の
実施形態について、図面を参照して詳述する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an EGR device according to the present invention will be described below in detail with reference to the drawings.
【００１７】図１はＥＧＲ装置１０の一例のＥＧＲクー
ラ２０を示す側面断面図である。ＥＧＲクーラ２０の正
面断面形状は図４に示した従来のものと同一なので詳細
説明は省略する。図１において、図３で説明した従来の
ものと同一部材には同一符号を付して説明は省略し、異
なる部分についてのみ説明する。FIG. 1 is a side sectional view showing an EGR cooler 20 as an example of the EGR device 10. The front sectional shape of the EGR cooler 20 is the same as that of the conventional one shown in FIG. In FIG. 1, the same members as those of the conventional one described with reference to FIG. 3 are designated by the same reference numerals, and the description thereof will be omitted. Only different portions will be described.
【００１８】図１において、シェル２１の一側には入口
ボンネット３０が固着され、入口ボンネット３０の端部
に設けられた排気ガス入口３２部にはＥＧＲ配管１１が
接続されている。入口ボンネット３０の排気ガス入口３
２部の底部３４は、プレート２２部から排気ガス入口３
２に向けて、シェル２１の内側底面と同一面、もしくは
下向きに形成されている。シェル２１の他端部に固着さ
れた椀状の出口ボンネット３１の中央部に設けられた排
気ガス出口３３部にはＥＧＲ配管１１が接続されてい
る。そして、排気ガス入口３２部、チューブ２３及び排
気ガス出口３３部とで排気ガス通路３５を形成してい
る。ＥＧＲクーラ２０は出口ボンネット３１側を高くし
て、傾斜して配置されており、シェル２１の底面の水平
面に対する傾斜角度θは少なくとも５°である。したが
って、排気ガス通路３５の底部は、排気ガス出口３３か
ら排気ガス入口３２に向けて順次低くなっている。排気
ガスは図の白矢印の方向に流れる。In FIG. 1, an inlet bonnet 30 is fixed to one side of the shell 21, and an EGR pipe 11 is connected to an exhaust gas inlet 32 portion provided at an end of the inlet bonnet 30. Exhaust gas inlet 3 of inlet bonnet 30
The bottom part 34 of the second part is from the plate 22 part to the exhaust gas inlet 3
The shell 21 is formed so as to face the inner bottom surface of the shell 21 or face downward. An EGR pipe 11 is connected to an exhaust gas outlet 33 portion provided at the center of a bowl-shaped outlet bonnet 31 fixed to the other end of the shell 21. The exhaust gas inlet 32, the tube 23, and the exhaust gas outlet 33 form an exhaust gas passage 35. The EGR cooler 20 is arranged so as to be inclined with the outlet bonnet 31 side raised, and the inclination angle θ of the bottom surface of the shell 21 with respect to the horizontal plane is at least 5 °. Therefore, the bottom of the exhaust gas passage 35 is gradually lowered from the exhaust gas outlet 33 toward the exhaust gas inlet 32. Exhaust gas flows in the direction of the white arrow in the figure.
【００１９】本発明のＥＧＲ装置１０のＥＧＲクーラ２
０は、上記のような構成としたため、排気ガス中に発生
する凝縮水は途中で滞留することなく排気ガス出口３３
側から排気ガス入口３２側に流れ、高温の排気ガスによ
り凝縮水中の有害な硫酸は分解、蒸発される。したがっ
て、ＥＧＲクーラ２０、ＥＧＲ配管１１あるいはＥＧＲ
バルブ１２等が腐食される恐れの無いＥＧＲ装置１０が
得られる。The EGR cooler 2 of the EGR device 10 of the present invention
Since 0 has the above-described configuration, the condensed water generated in the exhaust gas does not stay in the middle of the exhaust gas and the exhaust gas outlet 33
Side to the exhaust gas inlet 32 side, and harmful sulfuric acid in the condensed water is decomposed and evaporated by the high temperature exhaust gas. Therefore, the EGR cooler 20, the EGR pipe 11 or the EGR
It is possible to obtain the EGR device 10 in which the valve 12 and the like are not likely to be corroded.
【００２０】本実施形態ではＥＧＲクーラの断面形状は
円形であるが、４角形あるいは他の形状であっても良
い。In this embodiment, the EGR cooler has a circular sectional shape, but it may have a rectangular shape or another shape.
【図１】本発明のＥＧＲ装置の、ＥＧＲクーラの側面断
面図である。FIG. 1 is a side sectional view of an EGR cooler of an EGR device of the present invention.
【図２】ＥＧＲ装置を備えた、ターボチャージャ付エン
ジンの概略構成図である。FIG. 2 is a schematic configuration diagram of a turbocharged engine equipped with an EGR device.
【図３】従来のＥＧＲクーラの側面断面図である。FIG. 3 is a side sectional view of a conventional EGR cooler.
【図４】図３のＸ−Ｘ矢視図である。FIG. 4 is a view on arrow XX in FIG.
１０…ＥＧＲ装置、１１…ＥＧＲ配管、２０…ＥＧＲク
ーラ、２１…シェル、２２…プレート、２３…チュー
ブ、３０…入口ボンネット、３１…出口ボンネット、３
２…排気ガス入口、３３…排気ガス出口、３４…底部、
３５…排気ガス通路。10 ... EGR device, 11 ... EGR piping, 20 ... EGR cooler, 21 ... Shell, 22 ... Plate, 23 ... Tube, 30 ... Inlet bonnet, 31 ... Outlet bonnet, 3
2 ... Exhaust gas inlet, 33 ... Exhaust gas outlet, 34 ... Bottom part,
35 ... Exhaust gas passage.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 江藤 靖臣 栃木県小山市横倉新田400 株式会社小松 製作所小山工場内 (72)発明者 小野寺 康之 栃木県小山市横倉新田400 株式会社小松 製作所小山工場内 Ｆターム(参考） 3G062 ED08 ED10 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yasuomi Eto 400 Yokokura Nitta 400, Oyama City, Tochigi Prefecture Komatsu Co., Ltd. Factory Oyama Factory (72) Inventor Yasuyuki Onodera 400 Yokokura Nitta 400, Oyama City, Tochigi Prefecture Komatsu Co., Ltd. Factory Oyama Factory F-term (reference) 3G062 ED08 ED10
Claims (3)
1)に介装されたＥＧＲクーラ(20)の排気ガス通路(35)
を、排気ガス入口(32)側を排気ガス出口(33)側より下に
なるように配置したことを特徴とするＥＧＲ装置。1. An EGR device (10) comprises an EGR pipe (1
Exhaust gas passage (35) of EGR cooler (20) installed in 1)
Is arranged such that the exhaust gas inlet (32) side is below the exhaust gas outlet (33) side.
記排気ガス通路(35)が、前記排気ガス入口(32)側を下に
して水平面に対して少なくとも５°傾斜していることを
特徴とするＥＧＲ装置。2. The EGR device according to claim 1, wherein the exhaust gas passage (35) is inclined at least 5 ° with respect to a horizontal plane with the exhaust gas inlet (32) side facing down. EGR device to do.
て、前記排気ガス通路(35)の底部を、前記排気ガス出口
(33)側から前記排気ガス入口(32)側に向けて、順次低く
なるように形成したことを特徴とするＥＧＲ装置。3. The EGR device according to claim 1, wherein the bottom portion of the exhaust gas passage (35) is provided with the exhaust gas outlet.
An EGR device characterized in that it is formed so as to become gradually lower from the (33) side toward the exhaust gas inlet (32) side.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002136162A JP2003328863A (en) | 2002-05-10 | 2002-05-10 | EGR device |
| KR10-2003-0016687A KR20030087916A (en) | 2002-05-10 | 2003-03-18 | Egr equipment |
| CNB031078877A CN1300448C (en) | 2002-05-10 | 2003-04-01 | Tail gas recirculating devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002136162A JP2003328863A (en) | 2002-05-10 | 2002-05-10 | EGR device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003328863A true JP2003328863A (en) | 2003-11-19 |
Family
ID=29416776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002136162A Pending JP2003328863A (en) | 2002-05-10 | 2002-05-10 | EGR device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2003328863A (en) |
| KR (1) | KR20030087916A (en) |
| CN (1) | CN1300448C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006348798A (en) * | 2005-06-14 | 2006-12-28 | Mazda Motor Corp | Egr cooler arrangement structure for engine |
| WO2008063855A1 (en) * | 2006-11-17 | 2008-05-29 | Modine Manufacturing Company | A diesel combustion engine having a low pressure exhaust gas recirculation system employing a corrosion resistant aluminum charge air cooler |
| JP2010084554A (en) * | 2008-09-30 | 2010-04-15 | Kubota Corp | Multi-cylinder engine |
| JP2010190064A (en) * | 2009-02-16 | 2010-09-02 | Denso Corp | Egr gas cooling device |
| JP2010270604A (en) * | 2009-05-19 | 2010-12-02 | Denso Corp | Exhaust gas cooling device |
| WO2013011369A1 (en) | 2011-07-20 | 2013-01-24 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas cooling device |
| US9249718B2 (en) | 2011-10-19 | 2016-02-02 | Hyundai Motor Company | Intercooler for vehicle |
| CN105378241A (en) * | 2013-06-28 | 2016-03-02 | 丰田自动车株式会社 | Condensate treatment for internal combustion engines |
| JP2016176421A (en) * | 2015-03-20 | 2016-10-06 | スズキ株式会社 | Exhaust gas recirculation device for vehicular internal combustion engine |
| JP2017215054A (en) * | 2016-05-30 | 2017-12-07 | 株式会社ティラド | Exhaust gas cooling device |
| CN114000960A (en) * | 2020-07-28 | 2022-02-01 | 广州汽车集团股份有限公司 | EGR system and car |
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|---|---|---|---|---|
| CN100465570C (en) * | 2004-09-28 | 2009-03-04 | 株式会社T.Rad | Heat Exchanger |
| CN102278241B (en) * | 2011-07-12 | 2013-05-01 | 浙江银轮机械股份有限公司 | On-line spraying descaling method and system for exhaust gas recirculation cooler of diesel engine |
| DE102013003001A1 (en) * | 2013-02-22 | 2014-08-28 | Man Diesel & Turbo Se | Internal combustion engine, exhaust gas recirculation device and method for exhaust gas recirculation |
| DE102013009578A1 (en) * | 2013-06-07 | 2014-12-11 | Man Truck & Bus Ag | Method and device for desulphurizing an exhaust gas return flow |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001193578A (en) * | 2000-01-17 | 2001-07-17 | Hino Motors Ltd | EGR device |
-
2002
- 2002-05-10 JP JP2002136162A patent/JP2003328863A/en active Pending
-
2003
- 2003-03-18 KR KR10-2003-0016687A patent/KR20030087916A/en not_active Withdrawn
- 2003-04-01 CN CNB031078877A patent/CN1300448C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006348798A (en) * | 2005-06-14 | 2006-12-28 | Mazda Motor Corp | Egr cooler arrangement structure for engine |
| WO2008063855A1 (en) * | 2006-11-17 | 2008-05-29 | Modine Manufacturing Company | A diesel combustion engine having a low pressure exhaust gas recirculation system employing a corrosion resistant aluminum charge air cooler |
| JP2010084554A (en) * | 2008-09-30 | 2010-04-15 | Kubota Corp | Multi-cylinder engine |
| JP2010190064A (en) * | 2009-02-16 | 2010-09-02 | Denso Corp | Egr gas cooling device |
| JP2010270604A (en) * | 2009-05-19 | 2010-12-02 | Denso Corp | Exhaust gas cooling device |
| JP2013024109A (en) * | 2011-07-20 | 2013-02-04 | Toyota Motor Corp | Exhaust gas cooling device |
| WO2013011369A1 (en) | 2011-07-20 | 2013-01-24 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas cooling device |
| US9464598B2 (en) | 2011-07-20 | 2016-10-11 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas cooling device |
| US9249718B2 (en) | 2011-10-19 | 2016-02-02 | Hyundai Motor Company | Intercooler for vehicle |
| CN105378241A (en) * | 2013-06-28 | 2016-03-02 | 丰田自动车株式会社 | Condensate treatment for internal combustion engines |
| CN105378241B (en) * | 2013-06-28 | 2017-10-03 | 丰田自动车株式会社 | Condensate treatment for internal combustion engines |
| JP2016176421A (en) * | 2015-03-20 | 2016-10-06 | スズキ株式会社 | Exhaust gas recirculation device for vehicular internal combustion engine |
| JP2017215054A (en) * | 2016-05-30 | 2017-12-07 | 株式会社ティラド | Exhaust gas cooling device |
| CN114000960A (en) * | 2020-07-28 | 2022-02-01 | 广州汽车集团股份有限公司 | EGR system and car |
| US12085046B2 (en) | 2020-07-28 | 2024-09-10 | Guangzhou Automobile Group Co., Ltd. | EGR system and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1300448C (en) | 2007-02-14 |
| CN1456796A (en) | 2003-11-19 |
| KR20030087916A (en) | 2003-11-15 |
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