JP2000088477A - Apparatus for cooling egr gas - Google Patents
Apparatus for cooling egr gasInfo
- Publication number
- JP2000088477A JP2000088477A JP10260224A JP26022498A JP2000088477A JP 2000088477 A JP2000088477 A JP 2000088477A JP 10260224 A JP10260224 A JP 10260224A JP 26022498 A JP26022498 A JP 26022498A JP 2000088477 A JP2000088477 A JP 2000088477A
- Authority
- JP
- Japan
- Prior art keywords
- egr gas
- baffle plate
- outer cylinder
- egr
- pipe
- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0278—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F2009/0285—Other particular headers or end plates
- F28F2009/029—Other particular headers or end plates with increasing or decreasing cross-section, e.g. having conical shape
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、排気系からＥＧＲ
管路を介して吸気マニホールドに再循環されるＥＧＲガ
スを冷却するためのＥＧＲガス冷却装置に関する。[0001] The present invention relates to an EGR system for an exhaust system.
The present invention relates to an EGR gas cooling device for cooling EGR gas recirculated to an intake manifold via a pipe.
【０００２】[0002]
【従来の技術】従来、エンジンでは、排気ガス中におけ
る窒素酸化物（ＮＯｘ）を低減させるために、排気ガス
の一部を排気系から取り出し、混合気に加えるＥＧＲ
（Exhaust Gas Recirculation：排気再循環）が行われ
ている。このようなＥＧＲを行うためのＥＧＲ装置は、
排気系からの排気ガスの一部をＥＧＲガスとして燃焼室
に吸入される混合気に再循環させるように構成されてお
り、例えば、図３に示すように、排気マニホールド（ま
たは排気管）１と吸気マニホールド２との間を接続する
ＥＧＲ通路３と、このＥＧＲ通路３に設けられたＥＧＲ
弁４とを備えている。2. Description of the Related Art Conventionally, in an engine, in order to reduce nitrogen oxides (NOx) in the exhaust gas, a part of the exhaust gas is taken out of an exhaust system and added to an air-fuel mixture.
(Exhaust Gas Recirculation). An EGR device for performing such EGR includes:
A part of the exhaust gas from the exhaust system is configured to be recirculated as an EGR gas to the air-fuel mixture sucked into the combustion chamber. For example, as shown in FIG. 3, an exhaust manifold (or exhaust pipe) 1 An EGR passage 3 connecting the intake manifold 2 and an EGR passage provided in the EGR passage 3
And a valve 4.
【０００３】そして、ＥＧＲ弁４の開度をエンジンの運
転状態に応じて適宜に制御することにより、吸入混合気
に対するＥＧＲガスの割合が調整される。このようなＥ
ＧＲ装置では、ＥＧＲガスが混合気と共に燃焼室に取り
込まれるため、ＥＧＲガスの温度を適度な温度に維持す
る必要がある。すなわち、ＥＧＲガスは、本来高温であ
るが、このＥＧＲガスの温度が高すぎると、混合気が加
熱されて熱膨張することにより空気の充填効率が悪くな
り、混合気の燃焼率が悪化してエンジンの出力低下を招
く虞がある。[0003] The ratio of the EGR gas to the intake air-fuel mixture is adjusted by appropriately controlling the opening of the EGR valve 4 according to the operating state of the engine. Such an E
In the GR device, since the EGR gas is taken into the combustion chamber together with the air-fuel mixture, it is necessary to maintain the temperature of the EGR gas at an appropriate temperature. In other words, the EGR gas is naturally high in temperature, but if the temperature of the EGR gas is too high, the air-fuel mixture is heated and thermally expanded, so that the air charging efficiency is deteriorated and the combustion rate of the air-fuel mixture is deteriorated. The output of the engine may be reduced.
【０００４】一方、ＥＧＲガスの温度が低すぎると、Ｅ
ＧＲガス中のタール等の付着物質の粘度が増加して、付
着物質がＥＧＲ通路，ＥＧＲ弁等に付着し易くなり、装
置の信頼性を低下させる虞がある。従来、ＥＧＲガスを
冷却するＥＧＲガス冷却装置として、例えば、特開平９
−８９４９１号公報等に開示されるものが知られてい
る。On the other hand, if the temperature of the EGR gas is too low,
The viscosity of the adhering substance such as tar in the GR gas increases, so that the adhering substance easily adheres to the EGR passage, the EGR valve, and the like, which may reduce the reliability of the apparatus. Conventionally, as an EGR gas cooling device for cooling EGR gas, for example,
Japanese Unexamined Patent Publication No. -89491 is known.
【０００５】図４は、この種のＥＧＲガス冷却装置を示
すもので、この冷却装置は、排気マニホールドとＥＧＲ
弁とを接続する管路に配置されている。この冷却装置
は、外筒５の軸長方向に、多数のパイプ６を配置して構
成されており、図５に示すように、パイプ６の両端が端
板７に支持されている。外筒５の外周には、冷却水の入
口パイプ８および出口パイプ９が開口されている。FIG. 4 shows an EGR gas cooling device of this type, which comprises an exhaust manifold and an EGR gas cooling device.
It is arranged in a conduit connecting the valve. This cooling device is configured by arranging a number of pipes 6 in the axial direction of the outer cylinder 5, and both ends of the pipes 6 are supported by end plates 7 as shown in FIG. 5. An inlet pipe 8 and an outlet pipe 9 for the cooling water are opened on the outer periphery of the outer cylinder 5.
【０００６】また、外筒５の上端および下端には、フラ
ンジ部１０，１１が形成されている。上端のフランジ部
１０には、排気マニホールドからの配管１２が取付フラ
ンジ１３を介して連結され、下端のフランジ部１１に
は、ＥＧＲ弁への配管１４が取付フランジ１５を介して
連結されている。この冷却装置では、排気マニホールド
側の配管１２からＥＧＲガスが外筒５内に導入され、外
筒５内のパイプ６の間を流れる冷却水により冷却された
後、ＥＧＲ弁側の配管１４に導出される。Further, flange portions 10 and 11 are formed at the upper end and the lower end of the outer cylinder 5, respectively. A pipe 12 from the exhaust manifold is connected to the upper flange 10 via a mounting flange 13, and a pipe 14 to the EGR valve is connected to the lower flange 11 via a mounting flange 15. In this cooling device, the EGR gas is introduced into the outer cylinder 5 from the pipe 12 on the exhaust manifold side, cooled by the cooling water flowing between the pipes 6 in the outer cylinder 5, and then led to the pipe 14 on the EGR valve side. Is done.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、このよ
うな従来のＥＧＲガス冷却装置では、高温のＥＧＲガス
が、直接パイプ６内に流入するため、パイプ６の内周に
ＥＧＲガス中のカーボン等が付着し、熱交換効率が低下
するという問題があった。本発明は、かかる従来の問題
を解決するためになされたもので、パイプ部材の内周に
ＥＧＲガス中のカーボン等が付着することを従来より大
幅に低減することができるＥＧＲガス冷却装置を提供す
ることを目的とする。However, in such a conventional EGR gas cooling device, since the high-temperature EGR gas directly flows into the pipe 6, carbon or the like in the EGR gas is deposited on the inner periphery of the pipe 6. There is a problem that the heat exchange occurs and the heat exchange efficiency decreases. The present invention has been made in order to solve such a conventional problem, and provides an EGR gas cooling device capable of greatly reducing carbon or the like in EGR gas from adhering to the inner periphery of a pipe member. The purpose is to do.
【０００８】[0008]
【課題を解決するための手段】請求項１のＥＧＲガス冷
却装置は、冷却液の入口パイプおよび出口パイプが開口
される外筒の両側に、一対の端板を配置するとともに、
前記一対の端板の間に複数のパイプ部材を配置し、前記
外筒の一側にＥＧＲガスが流入される流入部を形成し、
前記外筒の他側にＥＧＲガスが流出される流出部を形成
してなるＥＧＲガス冷却装置において、前記外筒の一側
に、ガスケットを介して邪魔板部材および前記流入部を
着脱自在に配置し、前記流入部内に前記邪魔板部材の邪
魔板部を配置し、前記邪魔板部に複数の貫通穴を形成し
てなることを特徴とする。According to a first aspect of the present invention, there is provided an EGR gas cooling apparatus comprising: a pair of end plates disposed on both sides of an outer cylinder in which a cooling liquid inlet pipe and an outlet pipe are opened;
Arranging a plurality of pipe members between the pair of end plates, forming an inflow portion through which EGR gas flows into one side of the outer cylinder,
In an EGR gas cooling device having an outflow portion through which EGR gas flows out to the other side of the outer cylinder, a baffle plate member and the inflow portion are detachably disposed on one side of the outer cylinder via a gasket. The baffle plate portion of the baffle plate member is disposed in the inflow portion, and a plurality of through holes are formed in the baffle plate portion.
【０００９】（作用）請求項１のＥＧＲガス冷却装置で
は、排気系からのＥＧＲガスが、外筒の一側に形成され
る流入部の開口から流入部内に流入した後、邪魔板部材
の邪魔板部に形成される複数の貫通穴を通り、外筒の端
板に配置されるパイプ部材に流入し、このパイプ部材に
おいて外筒の端板の間を流れる冷却液と熱交換し冷却さ
れた後、外筒の他側に形成される流出部から吸気マニホ
ールド側に流出される。(Effect) In the EGR gas cooling device according to the first aspect, after the EGR gas from the exhaust system flows into the inflow portion through the opening of the inflow portion formed on one side of the outer cylinder, the EGR gas obstructs the baffle plate member. After passing through a plurality of through holes formed in the plate portion, flows into the pipe member arranged on the end plate of the outer cylinder, after being cooled by heat exchange with the coolant flowing between the end plates of the outer cylinder in the pipe member, It flows out to the intake manifold side from an outflow portion formed on the other side of the outer cylinder.
【００１０】そして、ＥＧＲガスが、邪魔板部材の邪魔
板部に形成される複数の貫通穴を通過する時に、ＥＧＲ
ガス中のカーボン等が貫通穴に付着される。一方、この
ようにして邪魔板部材の邪魔板部の貫通穴に付着したカ
ーボン等は、外筒から邪魔板部材および流入部を取り外
した状態で、貫通穴を清掃することにより除去され、再
度外筒に装着される。When the EGR gas passes through a plurality of through holes formed in the baffle plate portion of the baffle plate member, the EGR gas
Carbon or the like in the gas is attached to the through holes. On the other hand, carbon and the like adhering to the through hole of the baffle plate portion of the baffle plate member in this manner are removed by cleaning the through hole with the baffle plate member and the inflow portion removed from the outer cylinder, and removed again. Attached to the cylinder.
【００１１】[0011]
【発明の実施の形態】以下、本発明の詳細を図面に示す
実施形態について説明する。図１は、本発明のＥＧＲガ
ス冷却装置の一実施形態を示しており、符号２１は、外
筒を示している。この外筒２１は、円筒状をしておりス
テンレス鋼により形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the EGR gas cooling device of the present invention, and reference numeral 21 denotes an outer cylinder. The outer cylinder 21 has a cylindrical shape and is made of stainless steel.
【００１２】この外筒２１の外周には、冷却液の入口パ
イプ２３および出口パイプ２５が開口されている。外筒
２１の両側には、ステンレス鋼からなる一対の端板２７
が配置されている。端板２７には、多数の貫通穴２７ａ
が形成されており、この貫通穴２７ａにパイプ部材２９
の端部が嵌挿されている。On the outer periphery of the outer cylinder 21, an inlet pipe 23 and an outlet pipe 25 for the coolant are opened. A pair of end plates 27 made of stainless steel are provided on both sides of the outer cylinder 21.
Is arranged. The end plate 27 has a large number of through holes 27a.
Are formed in the through-hole 27a.
Is inserted.
【００１３】パイプ部材２９は、ステンレス鋼により形
成されている。外筒２１の一側には、ＥＧＲガスが流入
される流入部３１が形成され、また、外筒２１の他側に
は、ＥＧＲガスが流出される流出部３３が形成されてい
る。流入部３１および流出部３３は、ステンレス鋼によ
り形成されている。流入部３１および流出部３３には、
ＥＧＲガスの入口パイプ３５および出口パイプ３７が開
口されている。The pipe member 29 is formed of stainless steel. An inflow portion 31 into which EGR gas flows is formed on one side of the outer cylinder 21, and an outflow portion 33 from which EGR gas flows out is formed on the other side of the outer cylinder 21. The inflow portion 31 and the outflow portion 33 are formed of stainless steel. In the inflow section 31 and the outflow section 33,
An inlet pipe 35 and an outlet pipe 37 for the EGR gas are opened.
【００１４】流出部３３には、外筒２１の端部が嵌挿さ
れ、流出部３３が溶接３９により外筒２１に固定されて
いる。一方、流入部３１は、邪魔板部材４１およびガス
ケット４３を介して、外筒２１に着脱自在に固定されて
いる。すなわち、この実施形態では、流入部３１の端部
には、フランジ部３１ａが一体に形成されている。The outflow portion 33 is fitted with the end of the outer cylinder 21, and the outflow portion 33 is fixed to the outer cylinder 21 by welding 39. On the other hand, the inflow portion 31 is detachably fixed to the outer cylinder 21 via the baffle plate member 41 and the gasket 43. That is, in this embodiment, the end of the inflow portion 31 is integrally formed with the flange portion 31a.
【００１５】また、外筒２１の流入部３１側には、フラ
ンジ部２１ａが一体に形成されている。そして、邪魔板
部材４１は、ステンレス鋼からなり、図２に示すよう
に、円環状の取付部４５と、この取付部４５に一体形成
される邪魔板部４７とを有している。A flange 21a is formed integrally with the inflow portion 31 of the outer cylinder 21. The baffle plate member 41 is made of stainless steel, and has an annular mounting portion 45 and a baffle plate portion 47 integrally formed with the mounting portion 45 as shown in FIG.
【００１６】取付部４５には、９０度の角度を置いて取
付穴４５ａが形成されている。また、流入部３１のフラ
ンジ部３１ａ，ガスケット４３および外筒２１のフラン
ジ部２１ａには、邪魔板部材４１の取付穴４５ａに対応
する位置に、それぞれ取付穴が形成されている。そし
て、この実施形態では、図１に示すように、外筒２１の
フランジ部２１ａと流入部３１のフランジ部３１ａとの
間に、ガスケット４３および邪魔板部材４１の取付部４
５を配置し、これ等の取付穴にボルト４９を挿通し、ボ
ルト４９の先端にナット５１を螺合することにより、外
筒２１に流入部３１が、着脱自在に締結されている。The mounting portion 45 has a mounting hole 45a formed at an angle of 90 degrees. Further, mounting holes are formed in the flange portion 31a of the inflow portion 31, the gasket 43, and the flange portion 21a of the outer cylinder 21 at positions corresponding to the mounting holes 45a of the baffle plate member 41, respectively. In this embodiment, as shown in FIG. 1, between the flange portion 21a of the outer cylinder 21 and the flange portion 31a of the inflow portion 31, the mounting portion 4 of the gasket 43 and the baffle plate member 41 is provided.
The inflow portion 31 is detachably fastened to the outer cylinder 21 by disposing the bolts 49 through the mounting holes 5 and screwing the nuts 51 to the tips of the bolts 49.
【００１７】一方、邪魔板部材４１の邪魔板部４７は、
取付部４５に対して、例えば、４５度傾斜して形成され
ており、流入部３１内に収容されている。この邪魔板部
４７には、ＥＧＲガスが通過する複数の貫通穴４７ａが
形成されている。なお、この実施形態では、邪魔板部４
７には、邪魔板部４７のＥＧＲガス流入側面を、間隔を
おいて覆う傘部材５３が配置されている。On the other hand, the baffle plate portion 47 of the baffle plate member 41
For example, it is formed to be inclined at 45 degrees with respect to the mounting portion 45, and is housed in the inflow portion 31. The baffle plate 47 is formed with a plurality of through holes 47a through which the EGR gas passes. In this embodiment, the baffle plate 4
At 7, an umbrella member 53 that covers the EGR gas inflow side surface of the baffle plate portion 47 at an interval is arranged.
【００１８】この傘部材５３は、ステンレス鋼により形
成され、邪魔板部４７に溶接により固定されている。上
述したＥＧＲガス冷却装置では、排気系からのＥＧＲガ
スが、外筒２１の一側に形成される流入部３１の入口パ
イプ３５から流入部３１内に流入した後、傘部材５３に
衝突し攪拌され、邪魔板部材４１の邪魔板部４７に形成
される複数の貫通穴４７ａを通り、外筒２１の端板２７
に配置されるパイプ部材２９に流入し、このパイプ部材
２９において外筒２１の端板２７の間を流れる冷却液と
熱交換し冷却された後、外筒２１の他側に形成される流
出部３３の出口パイプ３７から吸気マニホールド側に流
出される。The umbrella member 53 is formed of stainless steel, and is fixed to the baffle plate 47 by welding. In the above-described EGR gas cooling device, the EGR gas from the exhaust system flows into the inflow portion 31 from the inlet pipe 35 of the inflow portion 31 formed on one side of the outer cylinder 21 and then collides with the umbrella member 53 to be stirred. The end plate 27 of the outer cylinder 21 passes through a plurality of through holes 47a formed in the baffle plate portion 47 of the baffle plate member 41.
Flows into the pipe member 29 disposed in the pipe member 29, and after being cooled by exchanging heat with the coolant flowing between the end plates 27 of the outer cylinder 21 in the pipe member 29, an outflow portion formed on the other side of the outer cylinder 21 The air flows out of the outlet pipe 37 to the intake manifold side.
【００１９】そして、ＥＧＲガスが、邪魔板部材４１の
邪魔板部４７に形成される複数の貫通穴４７ａを通過す
る時に、ＥＧＲガス中のカーボン等が貫通穴４７ａに付
着される。一方、このようにして邪魔板部材４１の邪魔
板部４７の貫通穴４７ａに付着したカーボン等は、外筒
２１から邪魔板部材４１および流入部３１を取り外した
状態で、貫通穴４７ａを清掃することにより除去され、
再度外筒２１に装着される。When the EGR gas passes through a plurality of through holes 47a formed in the baffle plate portion 47 of the baffle plate member 41, carbon and the like in the EGR gas adhere to the through holes 47a. On the other hand, carbon or the like attached to the through hole 47a of the baffle plate portion 47 of the baffle plate member 41 cleans the through hole 47a with the baffle plate member 41 and the inflow portion 31 removed from the outer cylinder 21. Removed by
It is mounted on the outer cylinder 21 again.
【００２０】以上のように構成されたＥＧＲガス冷却装
置では、ＥＧＲガスが、邪魔板部材４１の邪魔板部４７
に形成される複数の貫通穴４７ａを通過する時に、ＥＧ
Ｒガス中のカーボン等が貫通穴４７ａに付着し、ＥＧＲ
ガス中のカーボン等の量が減少するため、パイプ部材２
９の内周にＥＧＲガス中のカーボン等が付着することを
従来より大幅に低減することができる。In the EGR gas cooling device configured as described above, the EGR gas is supplied to the baffle plate portion 47 of the baffle plate member 41.
When passing through a plurality of through holes 47a formed in the
Carbon or the like in the R gas adheres to the through hole 47a,
Since the amount of carbon and the like in the gas is reduced, the pipe member 2
Adhering of carbon and the like in the EGR gas to the inner periphery of 9 can be significantly reduced as compared with the related art.
【００２１】また、上述したＥＧＲガス冷却装置では、
外筒２１の一側に、ガスケット４３を介して邪魔板部材
４１および流入部３１を着脱自在に配置したので、外筒
２１から邪魔板部材４１および流入部３１を取り外した
状態で貫通穴４７ａを清掃することが可能になり、邪魔
板部材４１の邪魔板部４７の貫通穴４７ａに付着したカ
ーボン等を容易，確実に除去することができる。In the above EGR gas cooling device,
Since the baffle plate member 41 and the inflow portion 31 are detachably disposed on one side of the outer cylinder 21 via the gasket 43, the through hole 47a is formed with the baffle plate member 41 and the inflow portion 31 removed from the outer cylinder 21. Cleaning can be performed, and carbon and the like attached to the through hole 47a of the baffle plate portion 47 of the baffle plate member 41 can be easily and reliably removed.
【００２２】さらに、上述したＥＧＲガス冷却装置で
は、邪魔板部材４１の邪魔板部４７に、傘部材５３を配
置したので、この傘部材５３の質量効果により、流入部
３１の入口パイプ３５から流入するＥＧＲガスの温度を
低減することができる。なお、上述した実施形態では、
ボルト４９とナット５１により、外筒２１に流入部３１
を着脱自在に締結した例について説明したが、本発明は
かかる実施形態に限定されるものではなく、例えば、外
筒の外周に雄螺子部を形成し、この雄螺子部に流入部の
内周に形成される雌螺子部を螺合するようにしても良
い。Further, in the above-described EGR gas cooling device, since the umbrella member 53 is disposed on the baffle plate portion 47 of the baffle plate member 41, the mass effect of the umbrella member 53 causes the inflow from the inlet pipe 35 of the inflow portion 31. The temperature of the EGR gas to be reduced. In the embodiment described above,
The inflow portion 31 is inserted into the outer cylinder 21 by the bolt 49 and the nut 51.
The present invention is not limited to such an embodiment. For example, the present invention is not limited to this embodiment. For example, a male screw portion is formed on the outer circumference of an outer cylinder, and the inner circumference of the inflow portion is formed on the male screw portion. May be screwed together.
【００２３】[0023]
【発明の効果】以上述べたように、請求項１のＥＧＲガ
ス冷却装置では、ＥＧＲガスが、邪魔板部材の邪魔板部
に形成される複数の貫通穴を通過する時に、ＥＧＲガス
中のカーボン等が貫通穴に付着し、ＥＧＲガス中のカー
ボン等量が減少するため、パイプ部材の内周にＥＧＲガ
ス中のカーボン等が付着することを従来より大幅に低減
することができる。As described above, in the EGR gas cooling device according to the first aspect, when the EGR gas passes through the plurality of through holes formed in the baffle plate portion of the baffle plate member, the carbon in the EGR gas is reduced. And the like adhere to the through-holes and reduce the amount of carbon in the EGR gas, so that the amount of carbon and the like in the EGR gas adhering to the inner periphery of the pipe member can be significantly reduced.
【図１】本発明のＥＧＲガス冷却装置の一実施形態を示
す断面図である。FIG. 1 is a sectional view showing an embodiment of an EGR gas cooling device of the present invention.
【図２】図１の邪魔板部材を示す斜視図である。FIG. 2 is a perspective view showing the baffle plate member of FIG.
【図３】従来のＥＧＲ装置を示す説明図である。FIG. 3 is an explanatory view showing a conventional EGR device.
【図４】従来のＥＧＲガス冷却装置を示す側面図であ
る。FIG. 4 is a side view showing a conventional EGR gas cooling device.
【図５】図４のＥＧＲガス冷却装置の要部の詳細を示す
断面図である。FIG. 5 is a sectional view showing details of a main part of the EGR gas cooling device of FIG. 4;
２１ 外筒 ２３ 入口パイプ ２５ 出口パイプ ２７ 端板 ２９ パイプ部材 ３１ 流入部 ３３ 流出部 ４１ 邪魔板部材 ４３ ガスケット ４７ 邪魔板部 ４７ａ 貫通穴 DESCRIPTION OF SYMBOLS 21 Outer cylinder 23 Inlet pipe 25 Outlet pipe 27 End plate 29 Pipe member 31 Inflow part 33 Outflow part 41 Baffle plate member 43 Gasket 47 Baffle plate part 47a Through hole
Claims (1)
パイプ（２５）が開口される外筒（２１）の両側に、一
対の端板（２７）を配置するとともに、前記一対の端板
（２７）の間に複数のパイプ部材（２９）を配置し、前
記外筒（２１）の一側にＥＧＲガスが流入される流入部
（３１）を形成し、前記外筒（２１）の他側にＥＧＲガ
スが流出される流出部（３３）を形成してなるＥＧＲガ
ス冷却装置において、 前記外筒（２１）の一側に、ガスケット（４３）を介し
て邪魔板部材（４１）および前記流入部（３１）を着脱
自在に配置し、前記流入部（３１）内に前記邪魔板部材
（４１）の邪魔板部（４７）を配置し、前記邪魔板部
（４７）に複数の貫通穴（４７ａ）を形成してなること
を特徴とするＥＧＲガス冷却装置。1. A pair of end plates (27) are arranged on both sides of an outer cylinder (21) in which an inlet pipe (23) and an outlet pipe (25) for a coolant are opened, and the pair of end plates (27) are arranged. 27), a plurality of pipe members (29) are arranged, an inflow portion (31) through which EGR gas flows into one side of the outer cylinder (21), and the other side of the outer cylinder (21) is formed. An EGR gas cooling device having an outflow portion (33) through which EGR gas flows out of the baffle plate member (41) and a gasket (43) on one side of the outer cylinder (21). The baffle plate (47) of the baffle plate member (41) is disposed in the inflow portion (31), and a plurality of through holes (47) are formed in the baffle plate portion (47). 47a) An EGR gas cooling device characterized by forming (a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10260224A JP2000088477A (en) | 1998-09-14 | 1998-09-14 | Apparatus for cooling egr gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10260224A JP2000088477A (en) | 1998-09-14 | 1998-09-14 | Apparatus for cooling egr gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000088477A true JP2000088477A (en) | 2000-03-31 |
Family
ID=17345086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10260224A Pending JP2000088477A (en) | 1998-09-14 | 1998-09-14 | Apparatus for cooling egr gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000088477A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007046890A (en) * | 2005-07-12 | 2007-02-22 | Usui Kokusai Sangyo Kaisha Ltd | Tubular heat exchanger for egr gas cooler |
| JP2007170271A (en) * | 2005-12-21 | 2007-07-05 | Usui Kokusai Sangyo Kaisha Ltd | Multipipe heat exchanger for exhaust gas cooling device |
| KR100764864B1 (en) | 2006-07-06 | 2007-10-09 | 현대자동차주식회사 | Dispersion absence of intelligence egrgas |
| WO2008003486A1 (en) * | 2006-07-06 | 2008-01-10 | Behr Gmbh & Co. Kg | Exhaust gas cooler, in particular for a motor vehicle |
| WO2012007344A3 (en) * | 2010-07-16 | 2012-03-29 | Alfa Laval Corporate Ab | Heat exchange device with improved system for distributing coolant fluid |
| JP2013204860A (en) * | 2012-03-27 | 2013-10-07 | Sumitomo Seika Chem Co Ltd | Heat exchange structure, and manufacturing device for water-absorbing resin having the heat exchange structure |
| JP2017036868A (en) * | 2015-08-07 | 2017-02-16 | カルソニックカンセイ株式会社 | Heat exchanger |
| WO2017145368A1 (en) * | 2016-02-26 | 2017-08-31 | 三菱重工業株式会社 | Cooling device and compressor system |
| EP4015976A1 (en) * | 2020-12-15 | 2022-06-22 | Valeo Autosystemy SP. Z.O.O. | Heat exchanger |
| WO2024060347A1 (en) * | 2022-09-23 | 2024-03-28 | 浙江英特科技股份有限公司 | Plate heat exchanger |
-
1998
- 1998-09-14 JP JP10260224A patent/JP2000088477A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007046890A (en) * | 2005-07-12 | 2007-02-22 | Usui Kokusai Sangyo Kaisha Ltd | Tubular heat exchanger for egr gas cooler |
| JP2007170271A (en) * | 2005-12-21 | 2007-07-05 | Usui Kokusai Sangyo Kaisha Ltd | Multipipe heat exchanger for exhaust gas cooling device |
| KR100764864B1 (en) | 2006-07-06 | 2007-10-09 | 현대자동차주식회사 | Dispersion absence of intelligence egrgas |
| WO2008003486A1 (en) * | 2006-07-06 | 2008-01-10 | Behr Gmbh & Co. Kg | Exhaust gas cooler, in particular for a motor vehicle |
| WO2012007344A3 (en) * | 2010-07-16 | 2012-03-29 | Alfa Laval Corporate Ab | Heat exchange device with improved system for distributing coolant fluid |
| JP2013204860A (en) * | 2012-03-27 | 2013-10-07 | Sumitomo Seika Chem Co Ltd | Heat exchange structure, and manufacturing device for water-absorbing resin having the heat exchange structure |
| JP2017036868A (en) * | 2015-08-07 | 2017-02-16 | カルソニックカンセイ株式会社 | Heat exchanger |
| WO2017145368A1 (en) * | 2016-02-26 | 2017-08-31 | 三菱重工業株式会社 | Cooling device and compressor system |
| US10914319B2 (en) | 2016-02-26 | 2021-02-09 | Mitsubishi Heavy Industries Compressor Corporation | Cooling device and compressor system |
| EP4015976A1 (en) * | 2020-12-15 | 2022-06-22 | Valeo Autosystemy SP. Z.O.O. | Heat exchanger |
| WO2024060347A1 (en) * | 2022-09-23 | 2024-03-28 | 浙江英特科技股份有限公司 | Plate heat exchanger |
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