EP1233170A2 - Kühlvorrichtung für rückgeführtes Abgas einer Brennkraftmaschine - Google Patents

Kühlvorrichtung für rückgeführtes Abgas einer Brennkraftmaschine Download PDF

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Publication number
EP1233170A2
EP1233170A2 EP02000973A EP02000973A EP1233170A2 EP 1233170 A2 EP1233170 A2 EP 1233170A2 EP 02000973 A EP02000973 A EP 02000973A EP 02000973 A EP02000973 A EP 02000973A EP 1233170 A2 EP1233170 A2 EP 1233170A2
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
cooling device
cooling box
recirculated exhaust
water jacket
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.)
Withdrawn
Application number
EP02000973A
Other languages
English (en)
French (fr)
Other versions
EP1233170A3 (de
Inventor
Sadao Miki
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of EP1233170A2 publication Critical patent/EP1233170A2/de
Publication of EP1233170A3 publication Critical patent/EP1233170A3/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/41—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
    • F02M26/22—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
    • F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
    • 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

Definitions

  • This invention relates to recirculated exhaust gas cooling for an internal combustion engine.
  • EGR exhaust gas recirculating
  • the EGR system comprises an exhaust gas recirculation passage (EGR passage) passing through the cylinder head of the engine.
  • the cooling device cools the recirculated exhaust gas by a coolant in a water jacket formed in the cylinder head.
  • the flow rate of the recirculated exhaust gas in the EGR passage is regulated by an exhaust gas recirculation valve (EGR valve) mounted outside of the cylinder head.
  • EGR valve exhaust gas recirculation valve
  • the EGR valve Since the EGR valve is positioned outside of the cylinder head, cooling performance by a coolant in the water jacket does not exert on the EGR valve.
  • the exhaust gas flow rate of the exhaust gas recirculation valve must be limited to a small amount in order to prevent the step motor from being overheated by the heat of the recirculated exhaust gas.
  • the cylinder head is generally manufactured by molding, so according to the prior art, the water jacket and exhaust gas recirculation passage must be formed by core molding. Due to the restriction related to this forming process, it is difficult to optimize the shape and arrangement of the exhaust gas recirculation passage and water jacket for attaining the maximum cooling performance.
  • this invention provides a recirculated exhaust gas cooling device for an internal combustion engine of a vehicle that comprises an intake system, an exhaust system, an exhaust gas recirculation passage recirculating a part of exhaust gas from the exhaust system to the intake system, and a cylinder head in which a water jacket is formed.
  • the cooling device comprises a cooling box which is fitted to the cylinder head and houses a predetermined part of the exhaust gas recirculation passage.
  • a water jacket is formed in the cooling box around the predetermined part, and the cooling box has an opening through which the water jacket in the cooling box is communicated with the water jacket in the cylinder head.
  • the device further comprises a valve provided in the cooling box to regulate a flow rate of a recirculated exhaust gas flowing through the exhaust gas recirculation passage.
  • FIG. 1 is a plan view of a cylinder head of an internal combustion engine with a cooling box according to this invention, viewed from above.
  • FIG. 2 is a side view of an upper part of the internal combustion engine.
  • FIG. 3 is an enlarged view of essential parts of FIG. 2.
  • FIG. 4 is a side view of the cooling box.
  • FIG. 5 is a side view of the cooling box viewed from the opposite side of FIG. 4.
  • an in-line four-cylinder internal combustion engine for a vehicle is provided with a cylinder head 2.
  • the cylinder head 2 is fixed on top of a cylinder block 1 of the engine as shown in FIG. 2.
  • the cylinder block 1 has four cylinders arranged in-line.
  • the cylinder head 2 has a top opening 2A closed by the cylinder head cover 5.
  • This internal combustion engine is placed in an engine room of the vehicle, such that the engine rotation axis coincides with the lateral direction of the vehicle.
  • An exhaust manifold 3 is fitted to one side of the cylinder head 2 directed toward the rear of the vehicle.
  • the intake manifold 4 is fixed to the other side of the cylinder head 2 directed toward the front of the vehicle.
  • the left-hand side of the figures corresponds to the front of the vehicle
  • the right-hand side of the figures corresponds to rear of the vehicle.
  • the intake manifold 4 is provided with a fuel injector fitting portion 10 which has openings respectively communicating with the intake branch passages 9.
  • the cylinder block 1 is formed by molding of cast iron or an aluminum alloy.
  • a water jacket for recirculating coolant is formed around each cylinder in the cylinder block 1.
  • a water jacket is also formed in the cylinder block 2. These water jackets mutually recirculate coolant via a plurality of communication holes provided on the connecting portion between the cylinder block 1 and cylinder head 2.
  • the cylinder head 2 is provided with a cylinder head body 11 and a cooling box 12 fixed to the cylinder head body 11.
  • the cylinder head body 11 is manufactured by molding of aluminum alloy.
  • the cooling box 12 is fixed to one side of the cylinder head body 11 directed downward in FIG. 1.
  • the cooling box 12 is manufactured by molding of aluminum alloy, and is provided with a flange 15 around a joint surface with the cylinder head body 11.
  • a plurality of bolt holes 17 are formed on the flange 15, and the cooling box 12 is fixed to the cylinder head body 11 by bolts penetrating these bolt holes 17.
  • the cylinder head body 11 has an opening communicating with the water jacket formed therein on a joint surface facing the cooling box 12.
  • the cooling box 12 has an opening 16A communicating with a water jacket 16 formed therein as shown in FIG. 5 on a joint surface facing the cylinder head body 11.
  • the opening 16A is in a shape similar to that of the opening of the water jacket on the cylinder head body 11 such that the water jacket 16 in the cooling box 12 and that in the cylinder head 2 mutually recirculate coolant via these openings in the state where the cylinder head body 11 and the cooling box 12 are joined together.
  • a gasket such as a liquid gasket is gripped between the flange 15 of the cooling box 12 and the cylinder head body 11.
  • the cooling box 12 comprises an exhaust air recirculation passage (EGR passage) 18, an exhaust air recirculation valve (EGR valve) 31 and a coolant inlet 41.
  • EGR passage exhaust air recirculation passage
  • EGR valve exhaust air recirculation valve
  • the exhaust gas recirculation passage (EGR passage) 18 passes through the cooling box 12 from the right-hand side of the figure to the left-hand side thereof.
  • the EGR passage 18 is divided into an upstream portion 18A and a downstream portion 18B, and the center axis of the downstream portion 18B is set in a position slightly offsetting upward relative to the center axis of the upstream portion 18A.
  • the upstream portion 18A and downstream portion 18B are respectively partitioned by pipe-shaped cylindrical walls 19A and 19B from the water jacket 16.
  • the upstream portion 18A and downstream portion 18B are connected via the EGR valve 31.
  • the upstream portion 18A is provided with an inlet 20 which is an opening formed on the end face on the right-hand side of the cooling box 12 in the figure.
  • a flange 45 is formed around the inlet 20.
  • the downstream portion 18B is provided with an outlet 21 which is an opening formed on the end face of the left-hand side of the cooling box 12 in the figure.
  • a flange 46 is formed around the outlet 21.
  • the cylindrical walls 19A and 19B are formed by molding as a part of the cooling box 12.
  • a half of the outer circumference of the cylindrical walls 19A and 19B forms a part of the outer wall of the cooling box 12 while the other half is disposed in the water jacket 16.
  • a plurality of fins 24 for heat radiation are formed on the outer circumference of the cylindrical wall 19A which is exposed in the water jacket 16 as shown in FIG. 5.
  • the EGR valve 31 is housed in a valve housing 23.
  • the valve housing 23 is also formed by molding in a cylindrical shape as a part of the cooling box 12. Similar to the structure of the cylindrical walls 19A, 19B, a half of the outer circumference of the valve housing 23 forms a part of the outer wall of the cooling box 12 while the other half is disposed in the water jacket 16.
  • a plurality of fins 25 for heat radiation are formed on the outer circumference of the valve housing 23 exposed in the water jacket 16 as shown in FIG. 5.
  • the valve housing 23 is disposed in the downstream portion of the EGR passage 18 in an inclined state with its top end directed downstream. As a result, the upstream portion 18A of the EGR passage 18 has a longer flow path than the downstream portion 18B.
  • a valve chamber 22 is formed in the valve housing 23.
  • an annular valve seat 33 is provided between these openings and the flow of the recirculated exhaust gas from the upstream portion 18A to the downstream portion 18B is shut off by a valve body 34 seated on the valve seat 33.
  • the valve body 34 is provided with a valve stem 34A.
  • the valve housing 23 has an opening 22A on the top opening toward the upper left of FIG. 4 and the flange 26 is formed around the opening 22A.
  • the valve stem 34A projects from this opening 22A of the valve housing 23, and is connected to the step motor 35 fixed to the flange 26.
  • the step motor 35 controls the flow rate of recirculated exhaust gas in the EGR passage 18 by operating the valve body 34 via the valve stem 34A in response to a step signal input from a controller not shown.
  • the coolant inlet 41 is provided at the upstream side of the cooling box 12.
  • the coolant inlet 41 has an opening 41B which is directed to the water jacket 16 as shown in FIG. 5.
  • a coolant hose from a coolant pump is connected to the coolant inlet 41.
  • the coolant inlet 41 is disposed diagonally with respect to the cooling box 12 as shown in FIG. 1 such that the coolant supplied from the coolant inlet 41 forms a flow directed toward the valve housing 23 in the water jacket 16.
  • the coolant after cooling the EGR passage 18 and valve housing 23 flows into the water jacket in the cylinder head body 11.
  • the coolant inlet 41 is provided with a connector 42.
  • the engine is provided with a throttle driven by a motor, and the coolant that has cooled this motor is recirculated to the water jacket 16 via the connector 42.
  • the cylinder head 2 has a front fitting surface 2C on its left side face, i.e., the side face directed toward the front of vehicle, to fit the intake manifold 4.
  • the cylinder head 2 has a rear fitting surface 2B on its right side face, i.e., the side face directed toward the rear of vehicle, to fit the exhaust manifold 3.
  • the flange 45 around the inlet 20 of the EGR passage 18 is formed on the same vertical plane as that of the rear fitting surface 2B.
  • the flange 46 around the outlet 21 of the EGR passage 18 is formed on the same vertical plane as that of the front fitting surface 2C.
  • An extension 3A extending downward in FIG. 1 is formed on the exhaust manifold 3.
  • An extension 4A extending downward in FIG. 1 is also formed on the intake manifold 4.
  • the cooling box 12 while being gripped between these extensions 3A and 4A is fixed to the cylinder head body 11.
  • an EGR passage 47 is formed for connecting the exhaust gas branch passages 6 and the inlet 20 of the
  • an EGR passage 48 is formed for connecting the intake gas branch passages 9 and the outlet 21 of the EGR passage 18.
  • a sheet-shaped gasket is gripped between the flange 45 and the extension 3A.
  • a similar gasket is gripped between the flange 46 and the extension 4A.
  • a gasket is gripped between the exhaust manifold 3 and the cylinder head 11, as well as between the intake manifold 4 and the cylinder head 11. Since the flange 45 is formed on the same vertical plane as that of the rear fitting surface 2B as mentioned above, the gasket between the flange 45 and the extension 3A may be provided in a one-piece construction with the gasket between the cylinder head body 11 and the exhaust manifold 3. Similarly, the gasket between the flange 46 and the extension 4A may be provided in a one-piece construction with the gasket between the cylinder head body 11 and the intake manifold 4.
  • a part of exhaust gas discharged to the exhaust manifold 3 from the engine is recirculated to the intake manifold 4 through the EGR passages 47, 18 and 48 connected in this manner.
  • the exhaust gas which has reached the intake manifold 4 is supplied to the cylinder in intake stroke through any of the intake branch passages 9 together with fresh air provided to the intake manifold 4.
  • the flow rate of the recirculated exhaust gas is controlled by the EGR valve 31 provided in the middle of the EGR passage 18. Since the EGR valve 31 is inclined along the flow of the recirculated exhaust gas in accordance with a difference in the level between the upstream portion 18A and downstream portion 18B of the EGR passage 18, energy loss caused by flow refraction when passing the EGR valve 31 is small and the exhaust gas flows smoothly even if the difference in pressure between the exhaust manifold 3 and the intake manifold 4 is small.
  • the exhaust gas flowing down the EGR passage 18 in the cooling box 12 is cooled by heat-exchange with the coolant in the water jacket 16 through the fins 24 of the upstream portion 18A before flowing into the valve housing 23.
  • the EGR valve 31 is provided in the downstream portion of the EGR passage 18 helps lower the temperature of the recirculated exhaust gas flowing into the valve housing 23.
  • the step motor 35 driving the EGR valve 31 is located near the intake manifold 4 which suffers a lower heat load than the exhaust manifold 3. This position is close to the front side of the vehicle that receives plenty of fresh air while the vehicle is running.
  • Such an arrangement of the EGR valve 31 is preferable for suppressing a temperature rise of the step motor 35 caused by heat of the recirculated exhaust gas, so the EGR valve 31 can recirculate a large amount of exhaust gas.
  • the engine room is provided at the front portion of the vehicle and covered by a hood having hinges at its rear end, such an arrangement of the EGR valve 31 renders ease of maintenance of the EGR valve 31 and step motor 35.
  • the cooling box 12 Since the cooling box 12 is provided with the coolant inlet 41, the coolant cools the EGR passage 18 and valve housing 23 before it flows into the cylinder head 2, so it efficiently cools the EGR passage 18 and the EGR valve 31.
  • the cooling box 12 can be manufactured without core molding. Therefore, the cooling box 12 does not suffer limitations in its shape and structure associated with the core molding.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP02000973A 2001-02-20 2002-01-16 Kühlvorrichtung für rückgeführtes Abgas einer Brennkraftmaschine Withdrawn EP1233170A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001042846A JP3669275B2 (ja) 2001-02-20 2001-02-20 内燃機関のｅｇｒガス冷却装置
JP2001042846 2001-02-20

Publications (2)

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EP1233170A2 true EP1233170A2 (de) 2002-08-21
EP1233170A3 EP1233170A3 (de) 2006-05-03

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007003303A1 (de) * 2005-07-05 2007-01-11 Daimlerchrysler Ag Brennkraftmaschine mit kühlsystem und abgasrückführsystem
DE102005059006A1 (de) * 2005-12-08 2007-06-14 Deutz Ag Abgasrückführung einer Brennkraftmaschine
NL1031231C2 (nl) * 2006-02-24 2007-08-27 Daf Trucks Nv Verbrandingsmotor met uitlaatgasrecirculatie.
ES2299405A1 (es) * 2007-10-09 2008-05-16 Dayco Ensa S.L. Modulo integrado egr/refrigeracion para un motor de combustion interna.
FR2917132A1 (fr) * 2007-06-07 2008-12-12 Peugeot Citroen Automobiles Sa Organe monobloc et module multifonctionnel comportant l'organe pour moteur avec reinjection des gaz d'echappement.
EP2077387A1 (de) * 2008-01-07 2009-07-08 Ford Global Technologies, LLC Verfahren zur Kühlung eines rückzuführenden Abgasstroms einer Brennkraftmaschine
FR2935436A1 (fr) * 2008-08-29 2010-03-05 Peugeot Citroen Automobiles Sa Boucle de recirculation de gaz d'echappement.
FR2954956A1 (fr) * 2010-01-04 2011-07-08 Peugeot Citroen Automobiles Sa Moteur comprenant une culasse et une ligne d'alimentation en air
FR2954955A1 (fr) * 2010-01-04 2011-07-08 Peugeot Citroen Automobiles Sa Moteur comportant une ligne d'air avec une boucle de re-circulation de gaz d'echappement
FR2954954A1 (fr) * 2010-01-04 2011-07-08 Peugeot Citroen Automobiles Sa Moteur dont la ligne d'alimentation en air comporte une boucle de re-circulation de gaz d'echappement
FR2954957A1 (fr) * 2010-01-04 2011-07-08 Peugeot Citroen Automobiles Sa Moteur avec une ligne d'air comportant une boucle de re-circulation de gaz d'echappement
CN102400819A (zh) * 2011-12-02 2012-04-04 湖南天雁机械有限责任公司 柴油发动机废气再循环系统冷却方法及装置
US8464669B2 (en) 2010-03-08 2013-06-18 Audi Ag Cooling circuit for an internal combustion engine
FR2991393A1 (fr) * 2012-05-30 2013-12-06 Peugeot Citroen Automobiles Sa Structure de ligne de recyclage des gaz d'echappement d'un moteur thermique
KR101401819B1 (ko) * 2010-05-17 2014-05-29 도요타지도샤가부시키가이샤 Egr 가스 냉각 구조를 갖는 실린더 헤드 및 그 제조 방법
CN103912411A (zh) * 2012-12-28 2014-07-09 铃木株式会社 车辆用发动机的废气回流装置
CN104251170A (zh) * 2013-06-27 2014-12-31 铃木株式会社 车辆用发动机的废气回流装置
EP3085943A1 (de) * 2015-04-16 2016-10-26 Bayerische Motoren Werke Aktiengesellschaft Abgasrückführungsbaugruppe mit abgaskrümmer
US9828894B2 (en) 2013-11-13 2017-11-28 Deere & Company Exhaust manifold comprising an EGR passage and a coolant passage
US11242819B2 (en) 2020-02-17 2022-02-08 Komatsu Ltd. Cylinder head and engine

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JP4484800B2 (ja) * 2005-09-28 2010-06-16 株式会社クボタ エンジン
KR101189377B1 (ko) 2006-12-15 2012-10-09 현대자동차주식회사 디젤엔진의 통합형 다기능 냉각모듈구조
JP2010038201A (ja) * 2008-08-01 2010-02-18 Aisan Ind Co Ltd 中空流体通路部品及びその製造方法
KR101004255B1 (ko) 2008-11-28 2011-01-03 쌍용자동차 주식회사 자동차용 ｅｇｒ 및 스월시스템 통합 인테이크 메니폴드
JP5328024B2 (ja) * 2009-02-12 2013-10-30 ヤンマー株式会社 エンジン
JP5278020B2 (ja) * 2009-02-16 2013-09-04 株式会社デンソー Ｅｇｒガス冷却装置
JP5423169B2 (ja) * 2009-06-15 2014-02-19 いすゞ自動車株式会社 内燃機関
JP2011122514A (ja) * 2009-12-10 2011-06-23 Daihatsu Motor Co Ltd 内燃機関の排気ガス還流装置
JP5595175B2 (ja) * 2010-08-19 2014-09-24 ダイハツ工業株式会社 内燃機関
JP5691359B2 (ja) * 2010-10-04 2015-04-01 株式会社デンソー 排気ガス還流バルブ
DE102011001461B4 (de) * 2011-03-22 2017-01-26 Pierburg Gmbh Abgasrückführmodul für eine Verbrennungskraftmaschine
JP5881983B2 (ja) * 2011-07-07 2016-03-09 ヤンマー株式会社 エンジンの排気再循環装置
JP6065868B2 (ja) * 2014-03-28 2017-01-25 マツダ株式会社 エンジンの排気ガス還流装置
JP6303870B2 (ja) * 2014-06-30 2018-04-04 日産自動車株式会社 内燃機関のシリンダブロック
JP6156340B2 (ja) * 2014-11-27 2017-07-05 マツダ株式会社 エンジンの吸気装置
JP7296251B2 (ja) * 2019-05-31 2023-06-22 ダイハツ工業株式会社 内燃機関のｅｇｒ装置
JP7251367B2 (ja) * 2019-07-03 2023-04-04 スズキ株式会社 車両用エンジン
JP7251366B2 (ja) * 2019-07-03 2023-04-04 スズキ株式会社 車両用エンジン
KR20230086354A (ko) 2021-12-08 2023-06-15 현대자동차주식회사 Egr 쿨러

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1182185A (ja) 1997-09-12 1999-03-26 Honda Motor Co Ltd エンジン

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4715046Y1 (de) * 1969-11-08 1972-05-29
JPH0354271U (de) * 1989-10-02 1991-05-24
JPH0676644U (ja) * 1993-03-31 1994-10-28 いすゞ自動車株式会社 排気再循環装置
JP2584319Y2 (ja) * 1993-12-22 1998-10-30 ダイハツ工業株式会社 排気ガス再循環装置
JP3392513B2 (ja) * 1994-03-22 2003-03-31 本田技研工業株式会社 Ｖ型エンジンの排気環流装置
JPH07259653A (ja) * 1994-03-25 1995-10-09 Kubota Corp エンジンの排ガス再循環装置
JP3544269B2 (ja) * 1996-06-18 2004-07-21 日野自動車株式会社 エンジンのｅｇｒ装置
JP3601640B2 (ja) * 1996-09-10 2004-12-15 本田技研工業株式会社 多気筒内燃機関の吸気装置
DE19750588B4 (de) * 1997-11-17 2016-10-13 MAHLE Behr GmbH & Co. KG Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor
JP4071370B2 (ja) * 1998-09-10 2008-04-02 ヤマハ発動機株式会社 筒内噴射式エンジン用ｅｇｒ弁装置
US6237547B1 (en) * 1998-09-10 2001-05-29 Yamaha Hatsudoki Kabushiki Kaisha Engine cooling arrangement
US6116026A (en) * 1998-12-18 2000-09-12 Detroit Diesel Corporation Engine air intake manifold having built-in intercooler

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1182185A (ja) 1997-09-12 1999-03-26 Honda Motor Co Ltd エンジン

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007003303A1 (de) * 2005-07-05 2007-01-11 Daimlerchrysler Ag Brennkraftmaschine mit kühlsystem und abgasrückführsystem
US7516737B2 (en) 2005-07-05 2009-04-14 Daimler Ag Internal combustion engine with cooling system and exhaust gas recirculation system
DE102005031300B4 (de) * 2005-07-05 2021-05-12 Daimler Ag Brennkraftmaschine mit Kühlsystem und Abgasrückführsystem
DE102005059006A1 (de) * 2005-12-08 2007-06-14 Deutz Ag Abgasrückführung einer Brennkraftmaschine
NL1031231C2 (nl) * 2006-02-24 2007-08-27 Daf Trucks Nv Verbrandingsmotor met uitlaatgasrecirculatie.
FR2917132A1 (fr) * 2007-06-07 2008-12-12 Peugeot Citroen Automobiles Sa Organe monobloc et module multifonctionnel comportant l'organe pour moteur avec reinjection des gaz d'echappement.
ES2299405A1 (es) * 2007-10-09 2008-05-16 Dayco Ensa S.L. Modulo integrado egr/refrigeracion para un motor de combustion interna.
EP2077387A1 (de) * 2008-01-07 2009-07-08 Ford Global Technologies, LLC Verfahren zur Kühlung eines rückzuführenden Abgasstroms einer Brennkraftmaschine
FR2935436A1 (fr) * 2008-08-29 2010-03-05 Peugeot Citroen Automobiles Sa Boucle de recirculation de gaz d'echappement.
FR2954956A1 (fr) * 2010-01-04 2011-07-08 Peugeot Citroen Automobiles Sa Moteur comprenant une culasse et une ligne d'alimentation en air
FR2954955A1 (fr) * 2010-01-04 2011-07-08 Peugeot Citroen Automobiles Sa Moteur comportant une ligne d'air avec une boucle de re-circulation de gaz d'echappement
FR2954954A1 (fr) * 2010-01-04 2011-07-08 Peugeot Citroen Automobiles Sa Moteur dont la ligne d'alimentation en air comporte une boucle de re-circulation de gaz d'echappement
FR2954957A1 (fr) * 2010-01-04 2011-07-08 Peugeot Citroen Automobiles Sa Moteur avec une ligne d'air comportant une boucle de re-circulation de gaz d'echappement
US8464669B2 (en) 2010-03-08 2013-06-18 Audi Ag Cooling circuit for an internal combustion engine
KR101401819B1 (ko) * 2010-05-17 2014-05-29 도요타지도샤가부시키가이샤 Egr 가스 냉각 구조를 갖는 실린더 헤드 및 그 제조 방법
CN102400819A (zh) * 2011-12-02 2012-04-04 湖南天雁机械有限责任公司 柴油发动机废气再循环系统冷却方法及装置
FR2991393A1 (fr) * 2012-05-30 2013-12-06 Peugeot Citroen Automobiles Sa Structure de ligne de recyclage des gaz d'echappement d'un moteur thermique
CN103912411A (zh) * 2012-12-28 2014-07-09 铃木株式会社 车辆用发动机的废气回流装置
CN103912411B (zh) * 2012-12-28 2016-09-07 铃木株式会社 车辆用发动机的废气回流装置
CN104251170A (zh) * 2013-06-27 2014-12-31 铃木株式会社 车辆用发动机的废气回流装置
CN104251170B (zh) * 2013-06-27 2017-04-12 铃木株式会社 车辆用发动机的废气回流装置
US9828894B2 (en) 2013-11-13 2017-11-28 Deere & Company Exhaust manifold comprising an EGR passage and a coolant passage
EP3085943A1 (de) * 2015-04-16 2016-10-26 Bayerische Motoren Werke Aktiengesellschaft Abgasrückführungsbaugruppe mit abgaskrümmer
US11242819B2 (en) 2020-02-17 2022-02-08 Komatsu Ltd. Cylinder head and engine

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