EP0365862B1 - Vorrichtung zur Abgasrückführung an einer mehrzylindrigen Dieselbrennkraftmaschine - Google Patents

Vorrichtung zur Abgasrückführung an einer mehrzylindrigen Dieselbrennkraftmaschine Download PDF

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Publication number
EP0365862B1
EP0365862B1 EP89118009A EP89118009A EP0365862B1 EP 0365862 B1 EP0365862 B1 EP 0365862B1 EP 89118009 A EP89118009 A EP 89118009A EP 89118009 A EP89118009 A EP 89118009A EP 0365862 B1 EP0365862 B1 EP 0365862B1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
valve
gas recycling
gas recirculation
exhaust
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.)
Expired - Lifetime
Application number
EP89118009A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0365862A1 (de
Inventor
Gernot Hertweck
Christian Enderle
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to AT89118009T priority Critical patent/ATE74403T1/de
Publication of EP0365862A1 publication Critical patent/EP0365862A1/de
Application granted granted Critical
Publication of EP0365862B1 publication Critical patent/EP0365862B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features having two or more purifying devices arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • 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
    • F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • F02M26/16—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system with EGR valves located at or near the connection to the exhaust system
    • 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
    • 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/68—Closing members; Valve seats; Flow passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/107—More than one exhaust manifold or exhaust collector
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the invention relates to a device for exhaust gas recirculation on a multi-cylinder diesel internal combustion engine according to the preamble of patent claim 1.
  • the invention is therefore based on the object of providing a device for a dual-flow exhaust manifold arrangement, by means of which exhaust gas quantities which are recirculated can be removed from the total exhaust gas stream with little construction effort and without requiring additional space.
  • recirculated exhaust gas is removed in equal parts from both floods of the exhaust manifold arrangement, the separate double flow being easily recoverable when the exhaust gas recirculation is prevented.
  • a diesel internal combustion engine 1 is shown in series construction with a double-flow exhaust manifold arrangement 2, which consists of two exhaust manifolds 3, 4 assigned to cylinder groups with a device 5 for returning the exhaust gases to an intake line (not shown).
  • Manifold parts 6, 7 of the exhaust manifold 3, 4 are combined in the area of the exhaust gas recirculation to form a double pipe 8.
  • the intermediate or partition wall 9 of the double pipe 8 separating the two floods is provided with an opening 10 through which exhaust gases can be fed to the intake line via an exhaust gas recirculation line 11.
  • the exhaust gas recirculation line 11 is flanged in the middle on a web 8a connecting the two tubes of the double tube 8 (FIGS. 1 and 2) and contains a controllable exhaust gas recirculation valve 12 with a valve plate 13, the side of which facing the double tube 8 contains the opening 10 when the valve 12 is in the closed position has almost completely filling plate-shaped partition part 14.
  • the partition wall part 14 protruding into the opening 10 has an approximately semicircular shape (FIG. 3) and, according to FIG. 2, separates the two flows in the double pipe 8 to a minimal gap 15 in order to ensure a reliable sealing of the valve plate 13 on its valve seat 16.
  • the exhaust gas recirculation valve 12 is arranged away from the exhaust manifold, namely flanged to a cylinder section 17 of the internal combustion engine downstream of a line section 11a of the exhaust gas recirculation line 11. Due to the remote position of the temperature-sensitive exhaust gas recirculation valve 12, this is significantly less stressed with regard to the heat exposure and heat-insulating measures are not necessary; however, the dual flow is slightly disturbed due to the lack of a control element in the partition 9 of the double pipe 8, since the two flows are not completely separated from one another.
  • the exhaust manifolds 3, 4 which are assigned to the cylinder groups and are located one behind the other are connected to one another by an elastic expansion body 18 in order to counteract thermal stresses occurring between the exhaust manifolds of different lengths.

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)
EP89118009A 1988-10-28 1989-09-28 Vorrichtung zur Abgasrückführung an einer mehrzylindrigen Dieselbrennkraftmaschine Expired - Lifetime EP0365862B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89118009T ATE74403T1 (de) 1988-10-28 1989-09-28 Vorrichtung zur abgasrueckfuehrung an einer mehrzylindrigen dieselbrennkraftmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3836723A DE3836723C1 (enrdf_load_stackoverflow) 1988-10-28 1988-10-28
DE3836723 1988-10-28

Publications (2)

Publication Number Publication Date
EP0365862A1 EP0365862A1 (de) 1990-05-02
EP0365862B1 true EP0365862B1 (de) 1992-04-01

Family

ID=6366091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89118009A Expired - Lifetime EP0365862B1 (de) 1988-10-28 1989-09-28 Vorrichtung zur Abgasrückführung an einer mehrzylindrigen Dieselbrennkraftmaschine

Country Status (5)

Country Link
US (1) US4969445A (enrdf_load_stackoverflow)
EP (1) EP0365862B1 (enrdf_load_stackoverflow)
JP (1) JPH02161162A (enrdf_load_stackoverflow)
AT (1) ATE74403T1 (enrdf_load_stackoverflow)
DE (1) DE3836723C1 (enrdf_load_stackoverflow)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158061A (en) * 1991-11-29 1992-10-27 Ford Motor Company Exhaust gas recirculation supply tube for automotive engine
JPH08246863A (ja) * 1995-01-13 1996-09-24 Toyota Motor Corp 内燃機関の排気管
US5609144A (en) * 1996-01-16 1997-03-11 Ford Motor Company Articulated exhaust gas recirculation supply tube for automotive engine
DE19636503C1 (de) * 1996-09-09 1997-11-20 Daimler Benz Ag Brennkraftmaschine mit einer Abgasrückführung
US5802846A (en) * 1997-03-31 1998-09-08 Caterpillar Inc. Exhaust gas recirculation system for an internal combustion engine
DE19810840A1 (de) * 1998-03-12 1999-09-16 Bayerische Motoren Werke Ag Mehrzylindrige Brennkraftmaschine mit Abgasrückführung
US6006733A (en) * 1998-10-08 1999-12-28 Navistar International Transportation Exhaust gas recirculation apparatus
FR2833312A1 (fr) * 2001-12-11 2003-06-13 Qualetude Dispositif de recyclage de gaz d'echappement pour moteur a combustion interne
WO2007147513A1 (de) * 2006-06-21 2007-12-27 Daimler Ag Abgaskrümmer
US8944035B2 (en) 2011-06-29 2015-02-03 General Electric Company Systems and methods for controlling exhaust gas recirculation
US8672090B1 (en) * 2012-09-30 2014-03-18 Favrecia Emissions Control Technologies Exhaust component with vibration isolated pipe
DE102013003738A1 (de) 2013-03-05 2014-09-11 Daimler Ag Abgasrückführventil
DE102013003730A1 (de) 2013-03-05 2014-09-11 Daimler Ag Abgasrückführventil
DE102015122351B4 (de) 2015-12-21 2025-04-30 Ihi Charging Systems International Gmbh Abgasführungsabschnitt für einen Abgasturbolader und Verfahren zum Betreiben eines Abgasturboladers
DE102015122355A1 (de) 2015-12-21 2017-06-22 Ihi Charging Systems International Gmbh Abgasführungsabschnitt für einen Abgasturbolader und Verfahren zum Betreiben eines Abgasturboladers

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3542004A (en) * 1968-08-09 1970-11-24 George W Cornelius Recycle apparatus
JPS5849373Y2 (ja) * 1978-12-08 1983-11-11 日産自動車株式会社 気筒数制御内燃機関の排気管
JPS5593932A (en) * 1979-01-08 1980-07-16 Nissan Motor Co Ltd Controller for number of fuel fed cylinder
JPS6030450Y2 (ja) * 1979-03-26 1985-09-12 日産自動車株式会社 気筒数制御エンジンの排気管
JPS5853182B2 (ja) * 1979-05-07 1983-11-28 日産自動車株式会社 気筒数制御エンジンの排気還流装置
JPS5951667B2 (ja) * 1979-06-22 1984-12-15 日産自動車株式会社 気筒数制御エンジン
JPS618341Y2 (enrdf_load_stackoverflow) * 1980-07-18 1986-03-14
JPS5865562U (ja) * 1981-10-26 1983-05-04 日産自動車株式会社 デユアルマニホ−ルドの酸素センサ取付部構造
JPS58148242A (ja) * 1982-02-25 1983-09-03 Nissan Motor Co Ltd 気筒数制御エンジン
JPS61102992A (ja) * 1984-10-26 1986-05-21 マツダ株式会社 さく岩機用ロツドチエンジヤ
JPS6241944A (ja) * 1985-08-20 1987-02-23 Mazda Motor Corp エンジンの空燃比制御装置

Also Published As

Publication number Publication date
US4969445A (en) 1990-11-13
EP0365862A1 (de) 1990-05-02
ATE74403T1 (de) 1992-04-15
DE3836723C1 (enrdf_load_stackoverflow) 1989-06-01
JPH02161162A (ja) 1990-06-21

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