EP1015750A1 - Anordnung zur rückführung von abgas bei einem verbrennungsmotor - Google Patents
Anordnung zur rückführung von abgas bei einem verbrennungsmotorInfo
- Publication number
- EP1015750A1 EP1015750A1 EP98951390A EP98951390A EP1015750A1 EP 1015750 A1 EP1015750 A1 EP 1015750A1 EP 98951390 A EP98951390 A EP 98951390A EP 98951390 A EP98951390 A EP 98951390A EP 1015750 A1 EP1015750 A1 EP 1015750A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- pipe
- arrangement according
- exhaust gas
- intake 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.)
- Granted
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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
-
- 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
- F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
-
- 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
-
- 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
- F02M26/41—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories characterised by the arrangement of the recirculation passage in relation to the engine, e.g. to cylinder heads, liners, spark plugs or manifolds; characterised by the arrangement of the recirculation passage in relation to specially adapted combustion chambers
-
- 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
- F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
- F02M26/44—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders in which a main EGR passage is branched into multiple passages
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10078—Connections of intake systems to the engine
- F02M35/10085—Connections of intake systems to the engine having a connecting piece, e.g. a flange, between the engine and the air intake being foreseen with a throttle valve, fuel injector, mixture ducts or the like
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10268—Heating, cooling or thermal insulating means
-
- 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
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/20—Feeding recirculated exhaust gases directly into the combustion chambers or into the intake runners
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
- F02M35/112—Intake manifolds for engines with cylinders all in one line
Definitions
- the invention relates to an arrangement for recycling exhaust gas in an internal combustion engine according to the preamble of the main claim.
- exhaust gases of the internal combustion engine are returned to the intake duct for the internal combustion engine from the exhaust pipe.
- the connecting pipe is embedded over a wide area in a heat exchanger for cooling the recirculated exhaust gas.
- the recirculated exhaust pipe is attached to the plastic intake pipe with a flange by means of two screws.
- mixed air for cooling is supplied in the region of the flange by means of a diffuser pipe.
- thermal peaks occur especially in the areas of the seals, generally made of plastic, at the connection of the connecting line for the recirculated exhaust gas and in areas which lie opposite the inflow opening. It is often difficult to dissipate sufficient heat due to the relatively small cross sections and relatively long distances. In many applications in connection with direct-injection engines, because of the expected recirculation rate of the exhaust gas (up to 50%), the demand for cylinder-selective introduction of the exhaust gas is often made, which leads to further thermal problems.
- the invention has for its object to develop an arrangement of the type mentioned so that an optimal lowering of the temperature is possible.
- the arrangement according to the invention is advantageously suitable, starting from the generic type, to solve the problem with the characterizing features of the main claim. Because a cooling element in the form of a cooling channel for cooling liquid, which is integrated in the flange-like connection of the connecting pipe on the intake pipe, is attached to a connecting pipe for the recirculated exhaust gas, the thermal load on the plastic intake pipe can be reduced with simple means even at higher recirculation rates become. The temperature of the intake air in the intake pipe can also be influenced positively.
- the arrangement according to the invention reduces the thermal load on the internal combustion engine, the exhaust gas temperature, the NOx emission and the fuel consumption. If the cooling liquid used for the engine cooling is used as the cooling liquid, this also results in a simple and inexpensive construction.
- the cooling channel can advantageously be integrated into the intake pipe, usually made of plastic, the transition of the cooling channel into the internal combustion engine being placed in the cylinder head flange of the engine and the interface being sealed here with an additional seal.
- the cooling element is a solid, heat-conducting part that Part of the connecting line and in the area of the flange-like connection of the intake pipe is attached to the cylinder head. Due to the massive connection, for example of the distributor pipe for the recirculated exhaust gas, to the cylinder head, the gases flowing through can be cooled in a simple manner via the cylinder head flange, which has cooling channels anyway.
- the fastening elements of the intake pipe on the cylinder head can at least partially be used as fastening elements of the solid part.
- cooling channel through which cooling liquid flows in the area where the solid part is attached in the cylinder head or at least partially in the solid part, as a result of which the cooling capacity can be further optimized.
- the massive heat-conducting part is a tubular insert that is integrated inside the intake pipe.
- One end of this insert is in thermal contact with the cylinder head.
- this heat transfer can also be increased by the fact that the end face of the insert resting on the cylinder head has an enlarged diameter.
- the pipe-like connecting line for the recirculated exhaust gas is led out through the wall of the intake pipe on the side of the insert.
- the connecting line and the insert are connected to one another in a gastight manner, so that no seals between the connecting line and the intake pipe are necessary.
- the inflowing exhaust gas thus hits the inner wall of the cooled insert and therefore does not represent an increased thermal load on the plastic of the intake pipe.
- Figure 1 is a schematic view of a cylinder head of the internal combustion engine with a coolant-cooled connection of the recirculated exhaust gas to the intake pipe;
- Figure 2 shows a section through the connecting flange for the recirculated exhaust gas with a cooling channel
- Figure 3 is a schematic view of a manifold for the recirculated exhaust gas with a massive connection to the cylinder head;
- Figure 4 shows a section through the arrangement of Figure 3;
- FIG. 5 shows a detailed drawing of a modified embodiment of the arrangement according to FIGS. 3 and 4;
- Figure 6 shows a section through an embodiment with a heat-contacted insert
- FIG. 7 shows a detailed drawing of a modified embodiment of the arrangement according to FIG. 6.
- a cylinder head 1 of an internal combustion engine is shown with the essential parts here.
- the exhaust gas in the connecting line 4 has a correspondingly high Te owing to the combustion in the engine. temperature, which may damage the intake manifold and the neighboring units, as these are designed for normal air temperatures and are largely made of plastic.
- a cooling duct 5 is connected to the connecting flange 2 for the recirculated exhaust gas, through which the coolant which is necessary for the engine anyway flows according to the arrows 6a (inlet) and 6b (outlet).
- FIG. 2 shows the guidance of this cooling channel 5 around the connecting flange 2 and thus around the connecting pipe 4 for the recirculated exhaust gas in another view.
- the flange contour according to FIG. 2 is fastened to the plastic suction pipe 2 with two screws 7.
- the connecting tube 4 is inserted in the middle of this flange contour.
- FIG. 3 An exemplary embodiment can be seen in FIG. 3, in which a distributor pipe 10 for recirculated exhaust gas is arranged on a cylinder block 11. This arrangement can be seen in section from FIG.
- the recirculated exhaust gas flows through the cross section 12 of the distributor pipe 10 and is in each case passed via pipes 13 and corresponding connecting flanges 14 into an intake pipe 15.
- already existing screw connections 16 possibly via a metal sleeve 17, can be used here for the intake pipe 15.
- a cooling channel 18 is arranged in the cylinder block 11, through which the cooling liquid flows.
- a cooling duct 19 can also be at least partially integrated into the distributor pipe 10. be grated, with additional seals 20 being necessary here.
- FIG. 6 shows an exemplary embodiment which has a metallic insert 21 which is attached in the plastic intake pipe 22 in such a way that an end 23 abuts the cylinder head 24 under thermal contact.
- a cooling duct 25 is also arranged in the cylinder head 24.
- a connecting pipe 26 for the recirculated exhaust gas is inserted firmly and gas-tight into the insert 21.
- a free distance 27 is attached to the surrounding plastic of the intake pipe 22, since the relatively high temperatures of the connecting pipe 26 should not damage the plastic of the intake pipe 22.
- the recirculated exhaust gas flows according to the arrows 28 into the relatively cool insert 21 and rebounds there, so that the thermal load on the plastic of the intake pipe does not become high.
- the area of the front end 23 of the insert is enlarged according to FIG. 7, so that an even better thermal contact between the insert 21 and the cylinder head 24 is achieved.
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)
- Exhaust Silencers (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Exhaust Gas After Treatment (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19740584 | 1997-09-16 | ||
DE19740584 | 1997-09-16 | ||
PCT/EP1998/005820 WO1999014477A1 (de) | 1997-09-16 | 1998-09-12 | Anordnung zur rückführung von abgas bei einem verbrennungsmotor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1015750A1 true EP1015750A1 (de) | 2000-07-05 |
EP1015750B1 EP1015750B1 (de) | 2003-05-02 |
Family
ID=7842442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98951390A Expired - Lifetime EP1015750B1 (de) | 1997-09-16 | 1998-09-12 | Anordnung zur rückführung von abgas bei einem verbrennungsmotor |
Country Status (9)
Country | Link |
---|---|
US (1) | US6334437B1 (de) |
EP (1) | EP1015750B1 (de) |
JP (1) | JP2001516841A (de) |
KR (1) | KR20010015580A (de) |
AT (1) | ATE239171T1 (de) |
BR (1) | BR9812326A (de) |
CA (1) | CA2304023A1 (de) |
DE (1) | DE59808190D1 (de) |
WO (1) | WO1999014477A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19920520C2 (de) * | 1999-05-05 | 2001-04-26 | Daimler Chrysler Ag | Vorrichtung zur Rückführung des Abgases einer Brennkraftmaschine |
DE10015210A1 (de) * | 2000-03-27 | 2001-10-04 | Pierburg Ag | Luftansaugkanlsystem für eine Brennkraftmaschine |
DE10119484B4 (de) * | 2001-04-20 | 2018-01-04 | Bayerische Motoren Werke Aktiengesellschaft | Flüssigkeitsgekühlte Brennkraftmaschine mit einem Abgasrückführsystem |
JP3988028B2 (ja) * | 2002-01-28 | 2007-10-10 | 三菱自動車工業株式会社 | エンジンのegr装置 |
JP4020058B2 (ja) * | 2003-10-10 | 2007-12-12 | 日産自動車株式会社 | 内燃機関の吸気装置 |
JP3772871B2 (ja) * | 2003-10-10 | 2006-05-10 | 日産自動車株式会社 | 内燃機関の吸気装置 |
JP2005337117A (ja) * | 2004-05-27 | 2005-12-08 | Nissan Motor Co Ltd | エンジンの吸気装置 |
JP4484799B2 (ja) * | 2005-09-28 | 2010-06-16 | 株式会社クボタ | 多気筒エンジン |
WO2008116568A1 (de) * | 2007-03-23 | 2008-10-02 | Behr Gmbh & Co. Kg | Ladefluidansaugmodul und verbrennungskraftmaschine |
EP2077387B1 (de) * | 2008-01-07 | 2011-07-27 | Ford Global Technologies, LLC | Verfahren zur Kühlung eines rückzuführenden Abgasstroms einer Brennkraftmaschine |
FR2931900A1 (fr) * | 2008-05-29 | 2009-12-04 | Peugeot Citroen Automobiles Sa | Dispositif de repartition des gaz d'admission pour un moteur a combustion interne |
JP5387612B2 (ja) * | 2010-06-25 | 2014-01-15 | マツダ株式会社 | エンジンの排気還流装置 |
US10247144B2 (en) * | 2013-05-21 | 2019-04-02 | Robert Bosch Gmbh | Engine exhaust gas recirculation cooling system with integrated latent heat storage device |
KR20150075421A (ko) * | 2013-12-17 | 2015-07-06 | 현대자동차주식회사 | 터보차저를 갖는 엔진시스템 |
FR3044048B1 (fr) * | 2015-11-20 | 2020-01-17 | Renault S.A.S. | Repartiteur d’air ameliore d’un vehicule |
JP6599738B2 (ja) * | 2015-11-25 | 2019-10-30 | アイシン精機株式会社 | 内燃機関の吸気装置 |
JP6656006B2 (ja) * | 2016-02-08 | 2020-03-04 | 愛三工業株式会社 | ガス分配装置 |
JP6619375B2 (ja) * | 2017-03-24 | 2019-12-11 | ヤンマー株式会社 | エンジン装置 |
JPWO2020145009A1 (ja) * | 2019-01-09 | 2021-09-27 | 愛三工業株式会社 | Egrガス分配器及びそれを備えたegr装置 |
JP7480732B2 (ja) * | 2021-03-22 | 2024-05-10 | トヨタ紡織株式会社 | Egr装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937196A (en) * | 1975-02-05 | 1976-02-10 | Ford Motor Company | Intake manifold for an internal combustion engine having an internally contained exhaust gas recirculation cooler |
US4072133A (en) * | 1976-04-22 | 1978-02-07 | General Motors Corporation | Intake manifold with internal passages arranged to simplify coring |
JPS5337232A (en) * | 1976-09-17 | 1978-04-06 | Toyota Motor Corp | Recirculating device of exhaust gas for internal combustion engine |
US4134377A (en) * | 1977-09-29 | 1979-01-16 | Borg-Warner Corporation | Exhaust gas recirculation control valve and heat exchanger |
DE3034971C2 (de) | 1979-10-09 | 1983-01-20 | Ford-Werke AG, 5000 Köln | Brennkraftmaschine mit zwei in V-Form angeordneten Zylinderreihen |
JPH07691Y2 (ja) * | 1988-07-12 | 1995-01-11 | 日産自動車株式会社 | 内燃機関のegrバルブ取付構造 |
US5490488A (en) * | 1995-04-05 | 1996-02-13 | Ford Motor Company | Internal combustion engine intake manifold with integral EGR cooler and ported EGR flow passages |
US5666930A (en) * | 1996-04-18 | 1997-09-16 | General Motors Corporation | Structural throttle body mount |
US5970960A (en) * | 1996-09-18 | 1999-10-26 | Nissan Motor Co., Ltd. | Exhaust gas recirculation system of internal combustion engine |
US5931131A (en) * | 1997-08-19 | 1999-08-03 | Caterpillar Inc. | Valve cover assembly having an integrated heat exchanger for cooling exhaust gases |
-
1998
- 1998-09-12 EP EP98951390A patent/EP1015750B1/de not_active Expired - Lifetime
- 1998-09-12 JP JP2000511993A patent/JP2001516841A/ja not_active Withdrawn
- 1998-09-12 WO PCT/EP1998/005820 patent/WO1999014477A1/de active IP Right Grant
- 1998-09-12 US US09/508,763 patent/US6334437B1/en not_active Expired - Fee Related
- 1998-09-12 AT AT98951390T patent/ATE239171T1/de not_active IP Right Cessation
- 1998-09-12 CA CA002304023A patent/CA2304023A1/en not_active Abandoned
- 1998-09-12 DE DE59808190T patent/DE59808190D1/de not_active Expired - Fee Related
- 1998-09-12 KR KR1020007002667A patent/KR20010015580A/ko active IP Right Grant
- 1998-09-12 BR BR9812326-2A patent/BR9812326A/pt not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9914477A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2304023A1 (en) | 1999-03-25 |
EP1015750B1 (de) | 2003-05-02 |
WO1999014477A1 (de) | 1999-03-25 |
DE59808190D1 (de) | 2003-06-05 |
JP2001516841A (ja) | 2001-10-02 |
ATE239171T1 (de) | 2003-05-15 |
US6334437B1 (en) | 2002-01-01 |
BR9812326A (pt) | 2001-12-18 |
KR20010015580A (ko) | 2001-02-26 |
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