JP2002371920A - Exhaust gas recirculation device - Google Patents
Exhaust gas recirculation deviceInfo
- Publication number
- JP2002371920A JP2002371920A JP2001182688A JP2001182688A JP2002371920A JP 2002371920 A JP2002371920 A JP 2002371920A JP 2001182688 A JP2001182688 A JP 2001182688A JP 2001182688 A JP2001182688 A JP 2001182688A JP 2002371920 A JP2002371920 A JP 2002371920A
- Authority
- JP
- Japan
- Prior art keywords
- intake
- gas
- gas introduction
- egr
- exhaust gas
- 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
-
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、排気ガス再循環装
置に関する。[0001] The present invention relates to an exhaust gas recirculation device.
【０００２】[0002]
【従来の技術】従来の排気ガス再循環装置では、ＥＧＲ
ガスはスロットルバルブより下流でインテークマニホル
ドより上流に設けられたＥＧＲガス導入アダプタ部位で
吸気通路に導入されている。ＥＧＲガス導入アダプタに
ＰＣＶガス導入部も形成されている。2. Description of the Related Art In a conventional exhaust gas recirculation system, EGR
The gas is introduced into the intake passage at an EGR gas introduction adapter portion provided downstream of the throttle valve and upstream of the intake manifold. A PCV gas introduction part is also formed in the EGR gas introduction adapter.
【０００３】[0003]
【発明が解決しようとする課題】しかし、ＥＧＲガス導
入部とＰＣＶガス導入部とが近接しているため、スロッ
トルバルブの吸気乱れ（渦）により、ＰＣＶガス中のオ
イルがＥＧＲガス導入部付近に付着し、ＥＧＲガス中の
カーボンが堆積固着する。その結果、ＥＧＲガス導入部
の断面積が減少し、ＥＧＲガスの導入流量が減少し、Ｎ
Ｏｘの増大と燃費の悪化を招く。本発明の目的は、ＥＧ
Ｒガス導入部でのカーボン堆積量を低減できる排気ガス
再循環装置を提供することにある。However, since the EGR gas introduction section and the PCV gas introduction section are close to each other, the turbulence of intake air (vortex) of the throttle valve causes oil in the PCV gas to reach the vicinity of the EGR gas introduction section. The carbon adheres and carbon in the EGR gas is deposited and fixed. As a result, the cross-sectional area of the EGR gas introduction section decreases, the introduction flow rate of the EGR gas decreases, and N
Ox is increased and fuel consumption is deteriorated. An object of the present invention is to provide an EG
An object of the present invention is to provide an exhaust gas recirculation device that can reduce the amount of carbon deposited in an R gas introduction section.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成する本発
明はつぎの通りである。 （１） ＥＧＲガス導入部は吸気通路への開口に近づく
につれて通路断面積が拡大している排気ガス再循環装
置。 （２） ＥＧＲガス導入部とＰＣＶガス導入部が形成さ
れたＥＧＲガス導入アダプタを吸気通路の途中に配置し
た排気ガス再循環装置であって、前記ＰＣＶガス導入部
の吸気通路への開口を前記ＥＧＲガス導入部の吸気通路
への開口より吸気ガス流れ方向下流側に設けた排気ガス
再循環装置。 （３） スロットルバルブの吸気ガス流れ方向下流側に
排気ガスを再循環させる排気ガス再循環装置であって、
スロットルバルブの吸気ガス流れ方向下流側でかつＥＧ
Ｒガス導入部かそれより上流側に吸気ガス流れを整える
整流板が設けられた排気ガス再循環装置。The present invention to achieve the above object is as follows. (1) An exhaust gas recirculation device in which an EGR gas introduction section has a passage cross-sectional area that increases as approaching an opening to an intake passage. (2) An exhaust gas recirculation device in which an EGR gas introduction adapter in which an EGR gas introduction section and a PCV gas introduction section are formed is arranged in the middle of an intake passage, wherein the opening of the PCV gas introduction section to the intake passage is set to An exhaust gas recirculation device provided downstream of the opening of the EGR gas introduction section to the intake passage in the direction of intake gas flow. (3) An exhaust gas recirculation device for recirculating exhaust gas downstream of the throttle valve in the direction of intake gas flow,
EG on the downstream side in the intake gas flow direction of the throttle valve
An exhaust gas recirculation device provided with a flow straightening plate for adjusting the flow of intake gas at or upstream of the R gas introduction section.
【０００５】上記（１）の排気ガス再循環装置では、Ｅ
ＧＲガス導入部は吸気通路への開口に近づくにつれて通
路断面積が拡大しているので、カーボンがＥＧＲガス導
入部に付着する面積が広くなる。その結果、ＥＧＲガス
導入部の通路断面積が一定の場合に比べて、ＥＧＲガス
導入部に付着するカーボンの厚さは減少し、ＥＧＲガス
導入部が詰まるまでの期間（寿命）は長くなる。上記
（２）の排気ガス再循環装置では、ＰＣＶガス導入部の
吸気通路への開口がＥＧＲガス導入部の吸気通路への開
口より吸気ガス流れ方向下流側にあるので、ＰＣＶガス
中のオイルがＥＧＲガス導入部に達しにくくなる。その
ため、ＰＣＶガス中のオイルがＥＧＲガス導入部に付着
する量は少なくなり、カーボンがＥＧＲガス導入部に堆
積する量は低減する。上記（３）の排気ガス再循環装置
では、吸気ガス流れを整える整流板が設けられているの
で、スロットルバルブの吸気ガス流れ方向下流側での吸
気乱れは減少する。その結果、ＰＣＶガスが、吸気ガス
流れにのり、吸気ガス流れ方向下流側に流れやすくな
る。したがって、ＰＣＶガス中のオイルがＥＧＲガス導
入部に付着する量は減少し、カーボンがＥＧＲガス導入
部に堆積する量は低減する。[0005] In the exhaust gas recirculation device of the above (1), E
Since the passage cross-sectional area of the GR gas introduction portion increases as approaching the opening to the intake passage, the area where carbon adheres to the EGR gas introduction portion increases. As a result, the thickness of the carbon adhering to the EGR gas introduction part is reduced and the period (life) until the EGR gas introduction part is clogged becomes longer than when the passage cross-sectional area of the EGR gas introduction part is constant. In the exhaust gas recirculation device of the above (2), the opening of the PCV gas introduction section to the intake passage is located downstream of the opening of the EGR gas introduction section to the intake passage in the direction of the intake gas flow, so that the oil in the PCV gas is reduced. It becomes difficult to reach the EGR gas introduction part. Therefore, the amount of oil in the PCV gas adhering to the EGR gas introduction portion is reduced, and the amount of carbon deposited on the EGR gas introduction portion is reduced. In the exhaust gas recirculation device of the above (3), a rectifying plate for adjusting the flow of the intake gas is provided, so that the intake turbulence on the downstream side of the throttle valve in the flow direction of the intake gas is reduced. As a result, the PCV gas easily flows along the intake gas flow and flows downstream in the intake gas flow direction. Therefore, the amount of oil in the PCV gas adhering to the EGR gas introduction portion decreases, and the amount of carbon deposited on the EGR gas introduction portion decreases.
【０００６】[0006]
【発明の実施の形態】図１は、本発明実施例１の排気ガ
ス再循環装置を示し、図２は、本発明実施例２の排気ガ
ス再循環装置を示し、図３は、本発明実施例３の排気ガ
ス再循環装置を示している。本発明実施例１から本発明
実施例３にわたって共通する部分には、本発明実施例１
から本発明実施例３にわたって同じ符号を付してある。
まず、本発明実施例１〜本発明実施例３に共通する部分
を、たとえば図１、図２を参照して、説明する。FIG. 1 shows an exhaust gas recirculation apparatus according to Embodiment 1 of the present invention, FIG. 2 shows an exhaust gas recirculation apparatus according to Embodiment 2 of the present invention, and FIG. 4 shows the exhaust gas recirculation device of Example 3. Parts common to the first embodiment of the present invention to the third embodiment of the present invention include the first embodiment of the present invention.
, And the same reference numerals are used throughout the third embodiment of the present invention.
First, portions common to Embodiments 1 to 3 of the present invention will be described with reference to, for example, FIGS.
【０００７】本発明実施例の排気ガス再循環装置１は、
スロットルバルブ２ａの吸気ガス流れ方向下流側に排気
ガスを再循環させる排気ガス再循環装置である。排気ガ
ス再循環装置１は、ＥＧＲガス導入アダプタ１０を有す
る。ＥＧＲガス導入アダプタ１０は、スロットルボデー
２の吸気ガス流れ方向下流側でスロットルボデー２に接
続して配置されており、インテークマニホルド３の吸気
ガス流れ方向上流側でインテークマニホルド３に接続し
て配置されている。An exhaust gas recirculation apparatus 1 according to an embodiment of the present invention comprises:
This is an exhaust gas recirculation device that recirculates exhaust gas downstream of the throttle valve 2a in the intake gas flow direction. The exhaust gas recirculation device 1 has an EGR gas introduction adapter 10. The EGR gas introduction adapter 10 is connected to the throttle body 2 on the downstream side of the throttle body 2 in the direction of intake gas flow, and is connected to the intake manifold 3 on the upstream side of the intake manifold 3 in the direction of intake gas flow. ing.
【０００８】ＥＧＲガス導入アダプタ１０には、ＥＧＲ
ガス導入部１１が形成されている。ＥＧＲガスは、ＥＧ
Ｒ通路４、ＥＧＲガス導入部１１を通り、ＥＧＲガス導
入部１１の開口１１ａを通過し、吸気通路５に導入され
る。ここで、開口１１ａは、スロットルボデー２の通路
内面２ｂの吸気ガス流れ方向下流側端と、インテークマ
ニホルド３の通路内面３ａの吸気ガス流れ方向上流側端
とを結んだ仮想面Ｓ1上にある。The EGR gas introduction adapter 10 has an EGR gas
A gas inlet 11 is formed. EGR gas is EG
The gas passes through the R passage 4 and the EGR gas introduction unit 11, passes through the opening 11 a of the EGR gas introduction unit 11, and is introduced into the intake passage 5. Here, the opening 11a is an intake gas flow direction downstream side end of the passage inner face 2b throttle body 2, on the virtual plane S 1 connecting the intake gas flow direction upstream end of the passageway inner surface 3a of the intake manifold 3 .
【０００９】ＥＧＲガス導入アダプタ１０には、ＰＣＶ
ガス導入部１２が形成されている。ＰＣＶガスは、ＰＣ
Ｖホース６、ＰＣＶガス導入部１２を通り、ＰＣＶガス
導入部１２の開口１２ａを通過し、吸気通路５に導入さ
れる。ここで、開口１２ａは、スロットルボデー２の通
路内面２ｂの吸気ガス流れ方向下流側端とインテークマ
ニホルド３の通路内面３ａの吸気ガス流れ方向上流側端
とを結んだ仮想面Ｓ2上にあるか（図１参照）、また
は、後述の張出壁１３の吸気ガス流れ方向下流側端とイ
ンテークマニホルド３の通路内面３ａの吸気ガス流れ方
向上流側端とを結んだ仮想面Ｓ3 上にある（図２参
照）。ＥＧＲガス導入部１１とＰＣＶガス導入部１２
は、吸気通路５の対向壁部分に設けられている。The EGR gas introduction adapter 10 has a PCV
A gas introduction part 12 is formed. PCV gas is PC
The VH passes through the V hose 6 and the PCV gas introduction unit 12, passes through the opening 12 a of the PCV gas introduction unit 12, and is introduced into the intake passage 5. Here, if the opening 12a is on the virtual surface S 2 that connects an intake gas flow direction upstream end of the intake gas flow direction downstream side end and the intake manifold 3 of the passage inner surface 3a of the throttle body 2 passage inner face 2b (see FIG. 1), or is on the virtual surface S 3 of connecting the intake gas flow direction upstream end of the intake gas flow direction downstream side end and the intake manifold 3 of the passage inner surface 3a of the bulging walls 13 described later ( (See FIG. 2). EGR gas introduction unit 11 and PCV gas introduction unit 12
Are provided on the opposed wall portion of the intake passage 5.
【００１０】つぎに、本発明の各実施例に特有な部分を
説明する。本発明実施例１は、図１に示すように、ＥＧ
Ｒガス導入部１１が開口１１ａに近づくにつれて通路断
面積が拡大している排気ガス再循環装置１を示してい
る。ＥＧＲガス導入部１１は、吸気ガス流れ方向上流側
の壁１１ｂと吸気ガス流れ方向下流側の壁１１ｃとの距
離が拡大することにより、通路断面積を拡大している。
ＰＣＶガス導入部１２の開口１２ａは、仮想面Ｓ2 上に
ある。Next, parts unique to each embodiment of the present invention will be described. In the first embodiment of the present invention, as shown in FIG.
2 shows the exhaust gas recirculation device 1 in which the passage cross-sectional area increases as the R gas introduction unit 11 approaches the opening 11a. In the EGR gas introduction unit 11, the passage cross-sectional area is increased by increasing the distance between the upstream wall 11b in the intake gas flow direction and the downstream wall 11c in the intake gas flow direction.
Opening 12a of the PCV gas inlet 12 is on the virtual surface S 2.
【００１１】本発明実施例１に特有な作用を説明する。
ＥＧＲガス導入部１１は吸気通路５への開口１１ａに近
づくにつれて通路断面積が拡大しているので、カーボン
がＥＧＲガス導入部１１に付着する面積が広くなる。そ
の結果、ＥＧＲガス導入部１１の通路断面積が一定の場
合に比べて、カーボンがＥＧＲガス導入部１１に付着す
る厚さは減少し、ＥＧＲガス導入部１１が詰まるまでの
期間（寿命）は長くなる。An operation unique to the first embodiment of the present invention will be described.
Since the cross-sectional area of the EGR gas introduction section 11 increases as approaching the opening 11a to the intake passage 5, the area where carbon adheres to the EGR gas introduction section 11 increases. As a result, as compared with the case where the passage cross-sectional area of the EGR gas introduction unit 11 is constant, the thickness of the carbon adhering to the EGR gas introduction unit 11 decreases, and the period (life) until the EGR gas introduction unit 11 is clogged is reduced. become longer.
【００１２】本発明実施例２は、図２に示すように、Ｐ
ＣＶガス導入部１２の開口１２ａをＥＧＲガス導入部１
１の開口１１ａより吸気ガス流れ方向下流側に設けた排
気ガス再循環装置１を示している。本発明実施例２で
は、インテークマニホルド３にＰＣＶ導入部１２の開口
１２ａが設けられており、開口１２ａまでＰＣＶガス導
入部１２を連通させており、開口１２ａまでＰＣＶガス
導入部１２を延ばす張出壁１３が設けられている。張出
壁１３は、ＥＧＲガス導入アダプタ１０の吸気ガス流れ
方向上流側端から吸気ガス流れ方向下流側に向って張り
出している。ＰＣＶガス導入部１２の開口１２ａは、仮
想面Ｓ3 上にある。張出壁１３は、ＥＧＲガス導入アダ
プタ１０が鋳造品の場合、ＥＧＲガス導入アダプタ１０
と一体成形される。張出壁１３の内面１３ａは、スロッ
トルボデー２の内面２ｂと面一またはほぼ面一とされて
いる。In the second embodiment of the present invention, as shown in FIG.
The opening 12a of the CV gas introduction unit 12 is connected to the EGR gas introduction unit 1
1 shows an exhaust gas recirculation device 1 provided downstream of an opening 11a in the intake gas flow direction. In the second embodiment of the present invention, the opening 12a of the PCV introduction section 12 is provided in the intake manifold 3, the PCV gas introduction section 12 communicates with the opening 12a, and the overhang extending the PCV gas introduction section 12 to the opening 12a. A wall 13 is provided. The overhang wall 13 extends from the upstream end of the EGR gas introduction adapter 10 in the intake gas flow direction to the downstream side in the intake gas flow direction. Opening 12a of the PCV gas inlet 12 is on a virtual plane S 3. The overhanging wall 13 is provided when the EGR gas introduction adapter 10 is a cast product.
It is integrally molded with. The inner surface 13a of the overhanging wall 13 is flush with or substantially flush with the inner surface 2b of the throttle body 2.
【００１３】本発明実施例２に特有な作用を説明する。
ＰＣＶガス導入部１２の開口１２ａがＥＧＲガス導入部
１１の開口１１ａより吸気ガス流れ方向下流側にあるの
で、ＰＣＶガス中のオイルがＥＧＲガス導入部１１に達
しにくくなる。そのため、ＰＣＶガス中のオイルがＥＧ
Ｒガス導入部１１に付着する量は少なくなり、カーボン
がＥＧＲガス導入部１１に堆積する量は低減する。ま
た、張出壁１３の内面１３ａがスロットルボデー２の内
面２ｂと面一またはほぼ面一とされているので、張出壁
１３が吸気ガス流れの抵抗となることはほとんどない。An operation unique to the second embodiment of the present invention will be described.
Since the opening 12a of the PCV gas introduction unit 12 is located downstream of the opening 11a of the EGR gas introduction unit 11 in the intake gas flow direction, the oil in the PCV gas hardly reaches the EGR gas introduction unit 11. Therefore, the oil in the PCV gas is EG
The amount adhering to the R gas introduction unit 11 decreases, and the amount of carbon deposited on the EGR gas introduction unit 11 decreases. Further, since the inner surface 13a of the overhanging wall 13 is flush with or substantially flush with the inner surface 2b of the throttle body 2, the overhanging wall 13 hardly acts as a resistance to the flow of intake gas.
【００１４】本発明実施例３では、図３に示すように、
スロットルバルブ２の吸気ガス流れ方向下流側でかつＥ
ＧＲガス導入部１１かそれより吸気ガス流れ方向上流側
に吸気ガス流れを整える整流板２０が設けられている。
整流板２０は、ＥＧＲガス導入アダプタ１０が鋳造品の
場合、ＥＧＲガス導入アダプタ１０と一体成形される。
整流板２０の吸気ガス流れ方向上流側端と吸気ガス流れ
方向下流側端はＲ形状となっている。整流板２０の上流
側端と下流側端がＲ形状となっているので、吸気ガス流
れが整流板２０に当たったときに、乱流が起こりにく
い。ＰＣＶガス導入部１２の開口１２ａは、仮想面Ｓ2
上にある。In Embodiment 3 of the present invention, as shown in FIG.
E downstream of the throttle valve 2 in the intake gas flow direction
A rectifying plate 20 for regulating the flow of the intake gas is provided on the GR gas introduction unit 11 or on the upstream side in the direction of the flow of the intake gas.
When the EGR gas introduction adapter 10 is a cast product, the current plate 20 is formed integrally with the EGR gas introduction adapter 10.
The upstream end in the intake gas flow direction and the downstream end in the intake gas flow direction of the flow straightening plate 20 are rounded. Since the upstream end and the downstream end of the current plate 20 are rounded, turbulence does not easily occur when the flow of the intake gas hits the current plate 20. Opening 12a of the PCV gas inlet 12, a virtual plane S 2
It's above.
【００１５】本発明実施例３に特有な作用を説明する。
吸気ガス流れを整える整流板２０が設けられているの
で、スロットルバルブ２の吸気ガス流れ方向下流側での
吸気乱れは減少する。その結果、ＰＣＶガスが、吸気ガ
ス流れにのり、吸気ガス流れ方向下流側に流れやすくな
る。したがって、ＰＣＶガス中のオイルがＥＧＲガス導
入部１１に付着する量は減少し、カーボンがＥＧＲガス
導入部１１で堆積する量は低減する。An operation unique to the third embodiment of the present invention will be described.
Since the straightening plate 20 for adjusting the flow of the intake gas is provided, the disturbance of the intake air downstream of the throttle valve 2 in the direction of the intake gas flow is reduced. As a result, the PCV gas easily flows along the intake gas flow and flows downstream in the intake gas flow direction. Therefore, the amount of oil in the PCV gas adhering to the EGR gas introduction unit 11 decreases, and the amount of carbon deposited in the EGR gas introduction unit 11 decreases.
【００１６】[0016]
【発明の効果】請求項１記載の排気ガス再循環装置によ
れば、ＥＧＲガス導入部は吸気通路への開口に近づくに
つれて通路断面積が拡大しているので、カーボンがＥＧ
Ｒガス導入部に付着する面積が広くなる。その結果、Ｅ
ＧＲガス導入部の通路断面積が一定の場合に比べて、Ｅ
ＧＲガス導入部に付着するカーボンの厚さは減少し、Ｅ
ＧＲガス導入部が詰まるまでの期間（寿命）は長くな
る。請求項２記載の排気ガス再循環装置によれば、ＰＣ
Ｖガス導入部の吸気通路への開口がＥＧＲガス導入部の
吸気通路への開口より吸気ガス流れ方向下流側にあるの
で、ＰＣＶガス中のオイルがＥＧＲガス導入部に達しに
くくなる。そのため、ＰＣＶガス中のオイルがＥＧＲガ
ス導入部に付着する量は少なくなり、カーボンがＥＧＲ
ガス導入部に堆積する量は低減する。請求項３記載の排
気ガス再循環装置によれば、吸気ガス流れを整える整流
板が設けられているので、スロットルバルブの吸気ガス
流れ方向下流側での吸気乱れは減少する。その結果、Ｐ
ＣＶガスが、吸気ガス流れにのり、吸気ガス流れ方向下
流側に流れやすくなる。したがって、ＰＣＶガス中のオ
イルがＥＧＲガス導入部に付着する量は減少し、カーボ
ンがＥＧＲガス導入部に堆積する量は低減する。According to the exhaust gas recirculation system of the first aspect, the cross-sectional area of the EGR gas introduction portion increases as approaching the opening to the intake passage.
The area that adheres to the R gas introduction part increases. As a result, E
In comparison with the case where the cross-sectional area of the passage of the GR gas introduction section is constant, E
The thickness of carbon adhering to the GR gas inlet is reduced,
The period (lifetime) until the GR gas introduction unit is clogged becomes longer. According to the exhaust gas recirculation device according to claim 2, PC
Since the opening of the V gas introduction unit to the intake passage is located downstream of the opening of the EGR gas introduction unit to the intake passage in the intake gas flow direction, the oil in the PCV gas hardly reaches the EGR gas introduction unit. For this reason, the amount of oil in the PCV gas adhering to the EGR gas introduction portion is reduced, and carbon is reduced to EGR.
The amount deposited on the gas inlet is reduced. According to the exhaust gas recirculation device of the third aspect, since the rectifying plate for adjusting the flow of the intake gas is provided, the intake turbulence on the downstream side of the throttle valve in the direction of the intake gas flow is reduced. As a result, P
The CV gas easily flows along the flow of the intake gas and flows downstream in the flow direction of the intake gas. Therefore, the amount of oil in the PCV gas adhering to the EGR gas introduction portion decreases, and the amount of carbon deposited on the EGR gas introduction portion decreases.
【図１】本発明の実施例１の排気ガス再循環装置の断面
図である。FIG. 1 is a sectional view of an exhaust gas recirculation device according to a first embodiment of the present invention.
【図２】本発明の実施例２の排気ガス再循環装置の断面
図である。FIG. 2 is a sectional view of an exhaust gas recirculation device according to a second embodiment of the present invention.
【図３】本発明の実施例３の排気ガス再循環装置の断面
図である。FIG. 3 is a sectional view of an exhaust gas recirculation device according to a third embodiment of the present invention.
１ 排気ガス再循環装置 ２ スロットルボデー ２ａ スロットルバルブ ３ インテークマニホルド ４ ＥＧＲ通路 ５ 吸気通路 １０ ＥＧＲ導入アダプタ １１ ＥＧＲガス導入部 １１ａ ＥＧＲガス導入部の開口 １２ ＰＣＶガス導入部 １２ａ ＰＣＶガス導入部の開口 １３ 張出壁 ２０ 整流板 DESCRIPTION OF SYMBOLS 1 Exhaust gas recirculation device 2 Throttle body 2a Throttle valve 3 Intake manifold 4 EGR passage 5 Intake passage 10 EGR introduction adapter 11 EGR gas introduction part 11a EGR gas introduction part opening 12 PCV gas introduction part 12a PCV gas introduction part 13 Overhang wall 20 Rectifier plate
Claims (3)
近づくにつれて通路断面積が拡大している排気ガス再循
環装置。1. An exhaust gas recirculation device in which an EGR gas introduction section has a passage cross-sectional area that increases as approaching an opening to an intake passage.
形成されたＥＧＲガス導入アダプタを吸気通路の途中に
配置した排気ガス再循環装置であって、 前記ＰＣＶガス導入部の吸気通路への開口を前記ＥＧＲ
ガス導入部の吸気通路への開口より吸気ガス流れ方向下
流側に設けた排気ガス再循環装置。2. An exhaust gas recirculation device in which an EGR gas introduction adapter having an EGR gas introduction section and a PCV gas introduction section is disposed in the middle of an intake passage, wherein the PCV gas introduction section has an opening to the intake passage. With the EGR
An exhaust gas recirculation device provided downstream of the opening of the gas inlet into the intake passage in the direction of flow of the intake gas.
流側に排気ガスを再循環させる排気ガス再循環装置であ
って、 スロットルバルブの吸気ガス流れ方向下流側でかつＥＧ
Ｒガス導入部かそれより上流側に吸気ガス流れを整える
整流板が設けられた排気ガス再循環装置。3. An exhaust gas recirculation system for recirculating exhaust gas downstream of a throttle valve in an intake gas flow direction, wherein the exhaust gas recirculation device is downstream of a throttle valve in an intake gas flow direction and EG.
An exhaust gas recirculation device provided with a flow straightening plate for adjusting the flow of intake gas at or upstream of the R gas introduction section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001182688A JP2002371920A (en) | 2001-06-18 | 2001-06-18 | Exhaust gas recirculation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001182688A JP2002371920A (en) | 2001-06-18 | 2001-06-18 | Exhaust gas recirculation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002371920A true JP2002371920A (en) | 2002-12-26 |
Family
ID=19022732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001182688A Pending JP2002371920A (en) | 2001-06-18 | 2001-06-18 | Exhaust gas recirculation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002371920A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010101254A (en) * | 2008-10-24 | 2010-05-06 | Toyota Industries Corp | Exhaust gas recirculating device in internal combustion engine |
| JP2010150927A (en) * | 2008-12-23 | 2010-07-08 | Honda Motor Co Ltd | Exhaust gas recirculating device for internal combustion engine |
| DE102009022229A1 (en) * | 2009-05-20 | 2010-11-25 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Housing a fresh gas supply device for an internal combustion engine and fresh gas supply device |
| JP2015101987A (en) * | 2013-11-22 | 2015-06-04 | 株式会社デンソー | EGR valve device |
| JP2016128660A (en) * | 2015-01-09 | 2016-07-14 | 富士重工業株式会社 | Gas recirculation device |
| DE102015119432B3 (en) * | 2015-11-11 | 2017-02-02 | Ford-Werke Gmbh | Inlet system for an internal combustion engine |
| JP2017180301A (en) * | 2016-03-30 | 2017-10-05 | 株式会社Ｓｕｂａｒｕ | Intake air straightener for internal combustion engine |
| DE102016118463A1 (en) | 2016-09-29 | 2018-03-29 | Pierburg Gmbh | Channel system for an internal combustion engine |
| AT523182A1 (en) * | 2019-12-06 | 2021-06-15 | Avl List Gmbh | COMBUSTION ENGINE WITH ONE INLET TRAIN |
-
2001
- 2001-06-18 JP JP2001182688A patent/JP2002371920A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010101254A (en) * | 2008-10-24 | 2010-05-06 | Toyota Industries Corp | Exhaust gas recirculating device in internal combustion engine |
| JP2010150927A (en) * | 2008-12-23 | 2010-07-08 | Honda Motor Co Ltd | Exhaust gas recirculating device for internal combustion engine |
| US8161950B2 (en) | 2008-12-23 | 2012-04-24 | Honda Motor Co., Ltd. | Exhaust gas recirculating device for internal combustion engines |
| DE102009022229A1 (en) * | 2009-05-20 | 2010-11-25 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Housing a fresh gas supply device for an internal combustion engine and fresh gas supply device |
| US9243568B2 (en) | 2009-05-20 | 2016-01-26 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Housing of a fresh gas supply device for an internal combustion engine and fresh gas supply device |
| JP2015101987A (en) * | 2013-11-22 | 2015-06-04 | 株式会社デンソー | EGR valve device |
| JP2016128660A (en) * | 2015-01-09 | 2016-07-14 | 富士重工業株式会社 | Gas recirculation device |
| DE102015119432B3 (en) * | 2015-11-11 | 2017-02-02 | Ford-Werke Gmbh | Inlet system for an internal combustion engine |
| US10808654B2 (en) | 2015-11-11 | 2020-10-20 | Pierburg Gmbh | Intake system for an internal combustion engine |
| JP2017180301A (en) * | 2016-03-30 | 2017-10-05 | 株式会社Ｓｕｂａｒｕ | Intake air straightener for internal combustion engine |
| DE102016118463A1 (en) | 2016-09-29 | 2018-03-29 | Pierburg Gmbh | Channel system for an internal combustion engine |
| AT523182A1 (en) * | 2019-12-06 | 2021-06-15 | Avl List Gmbh | COMBUSTION ENGINE WITH ONE INLET TRAIN |
| AT523182B1 (en) * | 2019-12-06 | 2021-06-15 | Avl List Gmbh | COMBUSTION ENGINE WITH ONE INLET TRAIN |
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