JPH0968118A - Exhaust gas recirculation device for intake manifold made of resin - Google Patents

Exhaust gas recirculation device for intake manifold made of resin

Info

Publication number
JPH0968118A
JPH0968118A JP7220203A JP22020395A JPH0968118A JP H0968118 A JPH0968118 A JP H0968118A JP 7220203 A JP7220203 A JP 7220203A JP 22020395 A JP22020395 A JP 22020395A JP H0968118 A JPH0968118 A JP H0968118A
Authority
JP
Japan
Prior art keywords
intake manifold
pipe
exhaust gas
resin
gas recirculation
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
Application number
JP7220203A
Other languages
Japanese (ja)
Inventor
Takayuki Ito
尊之 伊藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Engineering Plastics Corp
Original Assignee
Mitsubishi Engineering Plastics Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Engineering Plastics Corp filed Critical Mitsubishi Engineering Plastics Corp
Priority to JP7220203A priority Critical patent/JPH0968118A/en
Publication of JPH0968118A publication Critical patent/JPH0968118A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08Thermoplastics
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Exhaust Silencers (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent thermal deformation and lowering of the physical properties of an intake manifold made of resin and to simplify a device and be favorable in a cost by reducing an amount of heat transferred from a reflux pipe for recirculation of exhaust gas to the intake manifold made of resin. SOLUTION: In an exhaust gas recirculation device formed in such a manner that a reflux pipe to recirculate exhaust gas generated from an internal combustion engine to an intake manifold is connected between the internal combustion engine and an intake manifold formed of a resin material, the tip part on the outlet side of the reflux pipe is a double pipe and exposed to a fluid passage in the intake manifold. The external and internal pipes 3 and 2 of a double pipe are substantially interjoined only at a tipmost part and the extension surface of the external pipe 3 on the release side of the double pipe is mounted on the intake manifold.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、樹脂製吸気マニホ
ールドの排ガス再循環装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust gas recirculation device for a resin intake manifold.

【0002】[0002]

【従来の技術】近年、自動車の軽量化、高性能化の要求
に対して、樹脂製吸気マニホールドが採用されつつあ
る。他方、最近のエンジンの多くには、排ガスの一部を
吸気エアー側に還流させる排ガス再循環装置(EGR装
置)が装着されている。この排ガス再循環装置は、通
常、排ガスを還流させる金属製管(EGRパイプ)が非
常に高温になり、接続部を介して樹脂製吸気マニホール
ドに熱が伝導するため、長期の連続使用において、樹脂
製吸気マニホールドの温度が上がり、熱変形や強度低下
等のトラブル発生が懸念される。
2. Description of the Related Art In recent years, resin intake manifolds have been adopted to meet the demand for weight reduction and high performance of automobiles. On the other hand, many recent engines are equipped with an exhaust gas recirculation device (EGR device) that recirculates a part of the exhaust gas to the intake air side. In this exhaust gas recirculation device, the metal pipe (EGR pipe) that recirculates the exhaust gas becomes extremely hot, and heat is conducted to the resin intake manifold through the connection part. There is a concern that the temperature of the manufactured intake manifold will rise, causing problems such as thermal deformation and strength reduction.

【0003】そこで、例えば、実開平1−102465
号公報では、EGRパイプにエアークリーナーからの新
気を送入し合成樹脂製インテークマニホールドの熱変形
を防止することが提案されている。一方、実開平5−2
56217号公報では、樹脂製インテークマニホールド
と還流パイプとを特定の断熱材を介して固定したEGR
装置が開示され、特開平5−256217号公報におい
ては、樹脂製インテークマニホールドの取り付け部とヒ
ートインシュレーターとEGRバルブの接続部とを特定
の方法で締結した樹脂製インテークマニホールドが開示
されている。しかしながら、これらの方法ではいずれも
装置が複雑になり、コスト面で不利であるという問題が
あった。
Then, for example, the actual Kaihei 1-102465.
In the publication, it is proposed that fresh air from an air cleaner is fed into the EGR pipe to prevent thermal deformation of the synthetic resin intake manifold. On the other hand, the actual Kaihei 5-2
Japanese Patent No. 56217 discloses EGR in which a resin intake manifold and a return pipe are fixed via a specific heat insulating material.
An apparatus is disclosed, and Japanese Patent Application Laid-Open No. 5-256217 discloses a resin intake manifold in which a mounting portion of a resin intake manifold and a connection portion of a heat insulator and an EGR valve are fastened by a specific method. However, all of these methods have a problem in that the device becomes complicated and is disadvantageous in terms of cost.

【0004】[0004]

【発明が解決しようとする課題】本発明の目的は、高温
の排ガス再循環用還流管から樹脂製吸気マニホールドへ
の伝熱量を少なくすることにより、樹脂製吸気マニホー
ルドの熱変形、物性低下を防止し、且つ、装置が簡単で
コスト的にも有利である樹脂製吸気マニホールド用の排
ガス再循環装置を提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to prevent heat deformation and deterioration of physical properties of a resin intake manifold by reducing the amount of heat transferred from a high temperature exhaust gas recirculation recirculation pipe to the resin intake manifold. In addition, it is an object of the present invention to provide an exhaust gas recirculation device for a resin intake manifold, which is simple and cost effective.

【0005】[0005]

【課題を解決するための手段】本発明は、上述の問題を
解決するためになされたものであり、その要旨は、内燃
機関と樹脂材料により形成された吸気マニホールドとの
間に、内燃機関から発生する排ガスを該吸気マニホール
ドに再循環するための還流管を接続してなる排ガス再循
環装置において、還流管の出口側の先端部が二重管であ
って吸気マニホールド内の流体通路に露出しており、二
重管の外部管と内部管とは実質上最先端部でのみ接合さ
れ、二重管の開放側である外部管の延面を該吸気マニホ
ールドに取り付けてなる樹脂製吸気マニホールド用の排
気ガス再循環装置に存する。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its gist is to provide an internal combustion engine between an internal combustion engine and an intake manifold made of a resin material. In an exhaust gas recirculation device in which a recirculation pipe for recirculating generated exhaust gas to the intake manifold is connected, the outlet end of the recirculation pipe is a double pipe and is exposed in a fluid passage in the intake manifold. The outer pipe of the double pipe and the inner pipe are substantially joined only at the most distal end, and the extended surface of the outer pipe, which is the open side of the double pipe, is attached to the intake manifold for a resin intake manifold. Exhaust gas recirculation equipment.

【0006】[0006]

【発明の実施の形態】以下、本発明につき、詳細に説明
する。本発明の樹脂製吸気マニホールド用の排気ガス再
循環装置においては、内燃機関から発生する高温の排ガ
スの一部又は全部を吸気マニホールドに循環するのに用
いる還流管において、排ガスの出口側の管の先端部を二
重管とし、二重管の外部管と内部管とを実質上最先端部
でのみ接合し、二重管の開放側である外部管の延面を吸
気マニホールドに取り付けているので、伝熱延面距離が
長くなり、且つ、二重管を吸気マニホールド内の流体通
路に露出しているので、二重管の外部管から比較的低温
の空気等の媒体に放熱され、比較的簡単な方法により、
高温の金属製の還流管から樹脂製吸気マニホールドの取
り付け部への伝熱量を極めて少なくすることができる。
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. In the exhaust gas recirculation device for a resin intake manifold of the present invention, in the return pipe used to circulate a part or all of the high-temperature exhaust gas generated from the internal combustion engine to the intake manifold, Since the tip part is a double pipe, the outer pipe and the inner pipe of the double pipe are joined substantially only at the most distal end part, and the extended surface of the outer pipe that is the open side of the double pipe is attached to the intake manifold. Since the heat transfer surface distance is long and the double pipe is exposed to the fluid passage in the intake manifold, heat is radiated from the outer pipe of the double pipe to a medium such as relatively low temperature air, and In a simple way
It is possible to extremely reduce the amount of heat transfer from the high-temperature metal reflux pipe to the mounting portion of the resin intake manifold.

【0007】吸気マニホールドに用いられる樹脂として
は、例えば、ポリアミド樹脂、ポリフェニレンサルファ
イト樹脂等が挙げられる。還流管が金属製管である場合
に用いられる金属としては、例えば、鉄、アルミニウ
ム、ステンレス鋼等が挙げられる。還流管における二重
管は、通常、二重の円筒管であり、二重管の部分の長さ
は、吸気マニホールド内への二重管の取り付けと共に、
冷却媒体への露出面積を考慮して適宜決めることができ
る。二重管の外部管と内部管とは、実質上最先端部での
み接合されているが、伝熱がほとんど無い状態であれ
ば、外部管と内部管とは、断熱材等を介して接続しても
よい。二重管の吸気マニホールドへの取り付けは、二重
管の開放側である外部管の延面を吸気マニホールドの還
流管取り付け用開口部の外周面に接続しボルト等を用い
て取り付けるか、あるいは、ユニオン継手等により取り
付けることができる。上記二重管は、前もって製作され
た外部管を、内部管に例えば溶接で取り付けることで製
作できる。
Examples of the resin used for the intake manifold include polyamide resin and polyphenylene sulfite resin. Examples of the metal used when the reflux pipe is a metal pipe include iron, aluminum, and stainless steel. The double pipe in the return pipe is usually a double cylindrical pipe, and the length of the double pipe portion is, with the mounting of the double pipe in the intake manifold,
It can be appropriately determined in consideration of the exposed area to the cooling medium. The outer pipe and the inner pipe of the double pipe are practically joined only at the most distal end, but if there is almost no heat transfer, the outer pipe and the inner pipe are connected via a heat insulating material etc. You may. The double pipe is attached to the intake manifold by connecting the extended surface of the outer pipe, which is the open side of the double pipe, to the outer peripheral surface of the reflux pipe attachment opening of the intake manifold and using bolts or the like, or It can be attached using a union joint or the like. The double pipe can be manufactured by attaching a pre-made outer pipe to the inner pipe by, for example, welding.

【0008】更に、吸気マニホールド内の流体通路に露
出している外部管の表面に放熱板を設けることにより、
二重管の外部管から吸気マニホールド内の流体への放熱
が増加するので、還流管から樹脂製吸気マニホールドの
取り付け部への伝熱量は一層少なくなり、樹脂製吸気マ
ニホールドの温度上昇を防止できる。
Further, by disposing a heat radiating plate on the surface of the outer pipe exposed to the fluid passage in the intake manifold,
Since the heat radiation from the outer pipe of the double pipe to the fluid in the intake manifold is increased, the heat transfer amount from the reflux pipe to the mounting portion of the resin intake manifold is further reduced, and the temperature rise of the resin intake manifold can be prevented.

【0009】以下、本発明を実施例により更に詳細に説
明するが、本発明はその要旨を超えない限り、以下の実
施例に限定されるものではない。
Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to the following Examples unless it exceeds the gist.

【0010】[0010]

【実施例】【Example】

〔実施例−1〕図1ないし3は、本発明に係わる樹脂製
吸気マニホールドの排ガス再循環装置の実施例−1を示
している。図1は樹脂製吸気マニホールドの排ガス再循
環装置の模式的な正面図であり、図2及び3は、樹脂製
吸気マニホールドの排ガス再循環装置の模式的な断面図
である。図1〜3において、還流管1は、内部管2とこ
の内部管2の最先端部で接合された外部管3との二重管
構造をなし、更に、外部管3の外表面に放熱板4が取り
付けられている。二重管の開放側である外部管3の延面
は樹脂製吸気マニホールドにおける還流管取り付け用開
口部の周囲5にネジ6で取り付けられている。この還流
管1は、樹脂製吸気マニホールドの吸気エアーの通路に
露出するように取り付けられているため、実使用時にお
いて、樹脂製吸気マニホールドに導入される吸気エアー
により冷却される。従って、還流管の高熱は、内部管2
から外部管3及び放熱板4を介して、樹脂製吸気マニホ
ールドに伝わる途中で、外部管3及び放熱板4において
低温の吸気エアーに伝熱されるので、還流管から樹脂製
吸気マニホールドへの伝熱量は極めて少ない。
[Embodiment 1] FIGS. 1 to 3 show Embodiment 1 of an exhaust gas recirculation system for a resin intake manifold according to the present invention. FIG. 1 is a schematic front view of an exhaust gas recirculation device for a resin intake manifold, and FIGS. 2 and 3 are schematic cross-sectional views of an exhaust gas recirculation device for a resin intake manifold. 1 to 3, the reflux pipe 1 has a double pipe structure including an inner pipe 2 and an outer pipe 3 joined at the most distal end of the inner pipe 2, and a heat radiating plate is formed on the outer surface of the outer pipe 3. 4 is attached. The extended surface of the outer pipe 3, which is the open side of the double pipe, is attached with a screw 6 to the periphery 5 of the reflux pipe attachment opening in the resin intake manifold. Since the return pipe 1 is attached so as to be exposed in the intake air passage of the resin intake manifold, it is cooled by the intake air introduced into the resin intake manifold during actual use. Therefore, the high heat of the reflux pipe is
From the recirculation pipe to the resin intake manifold, heat is transferred to low temperature intake air in the outer pipe 3 and the heat dissipation plate 4 on the way from the outside to the resin intake manifold via the outer pipe 3 and the heat dissipation plate 4. Is extremely small.

【0011】〔実施例−2〕図4〜6は、本発明に係わ
る樹脂製吸気マニホールドの排ガス再循環装置の実施例
−2を示している。図4は樹脂製吸気マニホールドの排
ガス再循環装置の模式的な正面図であり、図5及び6
は、樹脂製吸気マニホールドの排ガス再循環装置の模式
的な断面図である。実施例2の樹脂製吸気マニホールド
の排ガス再循環装置の構成としては、実施例1と同様で
あるが、放熱板7を金属製の還流管の外表面に対し傾斜
して取り付けているので、放熱板一枚当たりの放熱面積
が広くなるという特徴がある。
Example-2 FIGS. 4 to 6 show Example-2 of the exhaust gas recirculation system for a resin intake manifold according to the present invention. FIG. 4 is a schematic front view of an exhaust gas recirculation device for a resin intake manifold, and FIGS.
FIG. 3 is a schematic sectional view of an exhaust gas recirculation device for a resin intake manifold. The configuration of the exhaust gas recirculation device for the resin intake manifold of the second embodiment is the same as that of the first embodiment, but since the heat dissipation plate 7 is attached to the outer surface of the metal reflux pipe at an inclination, It has the characteristic that the heat radiation area per plate is wide.

【0012】〔実施例−3〕図7〜9は、本発明に係わ
る樹脂製吸気マニホールドの排ガス再循環装置の実施例
−3を示している。図7は樹脂製吸気マニホールドの排
ガス再循環装置の模式的な正面図であり、図8及び9
は、樹脂製吸気マニホールドの排ガス再循環装置の模式
的な断面図である。実施例3の樹脂製吸気マニホールド
の排ガス再循環装置の構成としては、実施例1と同様で
あるが、還流管の外表面に放熱板を取り付けていないの
で、より簡単な排ガス再循環装置である。
[Embodiment 3] FIGS. 7 to 9 show Embodiment 3 of the exhaust gas recirculation apparatus for a resin intake manifold according to the present invention. FIG. 7 is a schematic front view of an exhaust gas recirculation device for a resin intake manifold, and FIGS.
FIG. 3 is a schematic sectional view of an exhaust gas recirculation device for a resin intake manifold. The configuration of the exhaust gas recirculation device for the resin intake manifold of the third embodiment is the same as that of the first embodiment, but the heat dissipation plate is not attached to the outer surface of the reflux pipe, so that the exhaust gas recirculation device is simpler. .

【0013】[0013]

【発明の効果】本発明の樹脂製吸気マニホールド用の排
気ガス再循環装置によれば、吸気エアー等の流体が外部
管に当たり、高温の還流管から外部管を介して熱を奪う
ので、内部管から樹脂製吸気マニホールドへの伝熱量は
極めて少ない。更に、放熱板を外部管の外表面に取り付
けた場合にあっては、内部管の熱が外部管及び放熱板を
介して吸気エアーに伝熱されるので、内部管から樹脂製
吸気マニホールドへの伝熱量は更に少なくなる。従っ
て、長期の連続使用においても樹脂製吸気マニホールド
の温度上昇が防止でき、熱変形や強度低下などのトラブ
ルがなくなる。又、還流管の先端部分のみが二重管の構
造であるので装置が簡単でありコストの点でも有利であ
る。
According to the exhaust gas recirculation system for a resin intake manifold of the present invention, a fluid such as intake air hits the outer pipe and takes heat from the high-temperature reflux pipe through the outer pipe. To the resin intake manifold is extremely small. Further, when the heat sink is attached to the outer surface of the outer pipe, the heat of the inner pipe is transferred to the intake air through the outer pipe and the heat sink, so that the heat transfer from the inner pipe to the resin intake manifold is performed. The amount of heat is further reduced. Therefore, even if the resin intake manifold is continuously used for a long period of time, the temperature rise of the resin intake manifold can be prevented, and troubles such as thermal deformation and strength reduction can be eliminated. Further, since only the tip portion of the reflux pipe has a double pipe structure, the device is simple and advantageous in terms of cost.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例−1における樹脂製吸気マニホ
ールドの排ガス再循環装置の模式的な正面図である。
FIG. 1 is a schematic front view of an exhaust gas recirculation device for a resin intake manifold according to a first embodiment of the present invention.

【図2】図1におけるA−A断面図を示す。FIG. 2 is a sectional view taken along line AA in FIG.

【図3】図1におけるB−B断面図を示す。FIG. 3 is a sectional view taken along line BB in FIG.

【図4】本発明の実施例−2における樹脂製吸気マニホ
ールドの排ガス再循環装置の模式的な正面図である。
FIG. 4 is a schematic front view of an exhaust gas recirculation device for a resin intake manifold according to a second embodiment of the present invention.

【図5】図4におけるC−C断面図を示す。5 is a sectional view taken along line CC of FIG.

【図6】図4におけるD−D断面図を示す。6 is a cross-sectional view taken along the line DD in FIG.

【図7】本発明の実施例−3における樹脂製吸気マニホ
ールドの排ガス再循環装置の模式的な正面図である。
FIG. 7 is a schematic front view of an exhaust gas recirculation device for a resin intake manifold according to a third embodiment of the present invention.

【図8】図7におけるE−E断面図を示す。8 is a cross-sectional view taken along line EE in FIG.

【図9】図8におけるF−F断面図を示す。9 is a sectional view taken along line FF in FIG.

【符号の説明】[Explanation of symbols]

1 還流管 2 内部管 3 外部管 4、7 放熱板 5 樹脂製吸気マニホールドにおける還流管取り付け用
開口部の外周面 6 取り付けネジ
1 Reflux pipe 2 Inner pipe 3 External pipe 4, 7 Heat sink 5 Outer peripheral surface of reflux pipe mounting opening in resin intake manifold 6 Mounting screw

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 内燃機関と樹脂材料により形成された吸
気マニホールドとの間に、内燃機関から発生する排ガス
を該吸気マニホールドに再循環するための還流管を接続
してなる排ガス再循環装置において、還流管の出口側の
先端部が二重管であって吸気マニホールド内の流体通路
に露出しており、二重管の外部管と内部管とは実質上最
先端部でのみ接合され、二重管の開放側である外部管の
延面を該吸気マニホールドに取り付けてなる樹脂製吸気
マニホールド用の排気ガス再循環装置。
1. An exhaust gas recirculation apparatus comprising a recirculation pipe connected between an internal combustion engine and an intake manifold made of a resin material for recirculating exhaust gas generated from the internal combustion engine to the intake manifold. The tip of the return pipe on the outlet side is a double pipe and is exposed to the fluid passage in the intake manifold. An exhaust gas recirculation device for a resin-made intake manifold, wherein an extended surface of an outer pipe, which is an open side of the pipe, is attached to the intake manifold.
【請求項2】 吸気マニホールド内の流体通路に露出し
ている二重管における外部管の表面に放熱板を設けるこ
とを特徴とする樹脂製吸気マニホールド用の排気ガス再
循環装置。
2. An exhaust gas recirculation device for a resin intake manifold, wherein a heat radiating plate is provided on the surface of the outer pipe of the double pipe exposed to the fluid passage in the intake manifold.
JP7220203A 1995-08-29 1995-08-29 Exhaust gas recirculation device for intake manifold made of resin Pending JPH0968118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7220203A JPH0968118A (en) 1995-08-29 1995-08-29 Exhaust gas recirculation device for intake manifold made of resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7220203A JPH0968118A (en) 1995-08-29 1995-08-29 Exhaust gas recirculation device for intake manifold made of resin

Publications (1)

Publication Number Publication Date
JPH0968118A true JPH0968118A (en) 1997-03-11

Family

ID=16747509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7220203A Pending JPH0968118A (en) 1995-08-29 1995-08-29 Exhaust gas recirculation device for intake manifold made of resin

Country Status (1)

Country Link
JP (1) JPH0968118A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173701B1 (en) * 1996-09-18 2001-01-16 Nissan Motor Co., Ltd. Exhaust gas recirculation system of internal combustion engine
CN1106261C (en) * 1996-11-19 2003-04-23 三井化学株式会社 High molecular polyolefine porous film and its making method
EP1384867A1 (en) * 2002-07-23 2004-01-28 DaimlerChrysler AG Sealing device for an exhaust gas pipe
KR100922830B1 (en) * 2009-03-12 2009-10-20 기검 Apparatus for connecting sucking valve with exhaustvalve for an internal combustion engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173701B1 (en) * 1996-09-18 2001-01-16 Nissan Motor Co., Ltd. Exhaust gas recirculation system of internal combustion engine
CN1106261C (en) * 1996-11-19 2003-04-23 三井化学株式会社 High molecular polyolefine porous film and its making method
EP1384867A1 (en) * 2002-07-23 2004-01-28 DaimlerChrysler AG Sealing device for an exhaust gas pipe
KR100922830B1 (en) * 2009-03-12 2009-10-20 기검 Apparatus for connecting sucking valve with exhaustvalve for an internal combustion engine
WO2010104268A2 (en) * 2009-03-12 2010-09-16 Ki Kum Apparatus for connecting intake and exhaust valves for internal combustion engine
WO2010104268A3 (en) * 2009-03-12 2010-11-04 Ki Kum Apparatus for connecting intake and exhaust valves for internal combustion engine

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