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EP1020635A2 - Tubulure d'air d'admission pour moteurs diesel - Google Patents

Tubulure d'air d'admission pour moteurs diesel Download PDF

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Publication number
EP1020635A2
EP1020635A2 EP99121637A EP99121637A EP1020635A2 EP 1020635 A2 EP1020635 A2 EP 1020635A2 EP 99121637 A EP99121637 A EP 99121637A EP 99121637 A EP99121637 A EP 99121637A EP 1020635 A2 EP1020635 A2 EP 1020635A2
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
intake pipe
pipe section
control valve
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.)
Granted
Application number
EP99121637A
Other languages
German (de)
English (en)
Other versions
EP1020635A3 (fr
EP1020635B1 (fr
Inventor
Andreas Trawinski
Heinrich Dismon
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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 Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP1020635A2 publication Critical patent/EP1020635A2/fr
Publication of EP1020635A3 publication Critical patent/EP1020635A3/fr
Application granted granted Critical
Publication of EP1020635B1 publication Critical patent/EP1020635B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
    • 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
    • F02M26/21—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 with EGR valves located at or near the connection to the intake 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/72—Housings
    • 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
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10347—Moulding, casting 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
    • 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
    • F02M26/50—Arrangements or methods for preventing or reducing deposits, corrosion or wear caused by impurities
    • 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
    • F02M26/69—Lift valves, e.g. poppet valves having two or more valve-closing members
    • 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
    • F02M35/1045—Intake manifolds characterised by the charge distribution between the cylinders/combustion chambers or its homogenisation

Definitions

  • the invention relates to a combustion air intake pipe section for diesel engines according to the preamble of claim 1.
  • the proportion of the excess air sucked in is greater, the lower is the load on the diesel engine, d. H. the higher the load on the diesel engine, the more the excess air is less proportional to the intake air. Furthermore, the takes in the Combustion chambers of the engine discharged excess air when the load of the engine rises.
  • the exhaust gas recirculation ratio decreases (which is indicated by the Return exhaust gas quantity plus the intake air quantity divided return exhaust gas quantity is defined) and vice versa.
  • valves are connected to one another in this way coupled that the amount of exhaust gas decreases as the fresh air throughput increases and vice versa.
  • the choice of different valves allows a mutual mechanical Coupling that enables an extremely compact unit.
  • valve rod has two valve disks that interact with two valve seats, are adjusted simultaneously and open and close the valve seats and thus control the connection between the exhaust gas inlet and outlet, the Exhaust outlet is connected directly to an air intake pipe of the internal combustion engine. Extreme contamination can also occur here, since the valve rod protrudes directly into the air intake pipe.
  • the object of the invention is to create a generic one Combustion air intake pipe section for diesel engines so that a cost-effective structural design in cast design and additionally an improved, protection against dirt can be achieved.
  • FIG. 1 shows a section of a combustion air intake pipe section 1 for diesel internal combustion engines, with an air damper throttling the air flow rate 2 and one downstream thereof
  • Existing exhaust gas recirculation introduction 3 which by an exhaust gas recirculation control valve 4th is checked, air damper 2 and control valve 4 in accordance with control signals can be actuated by electrical or pneumatic actuators 5, 6.
  • the intake pipe section 1 as a cast housing 7 is formed and has receiving recesses 8, 9 into which an exhaust gas recirculation introduction insert 10 and an exhaust gas recirculation control valve insert 11 and used Fit sections 12, 13 are held in the receiving recesses 8, 9.
  • the receiving recesses 8, 9 have a housing opening 14 are connected to each other, the housing opening 14 by a lead-in section collar 15 of the exhaust gas recirculation insert 10 compared to the Combustion air intake pipe section 1 is closed and the introduction section an exhaust gas inlet funnel 16 that forms in the combustion air flow direction into the intake pipe section 1 merging exhaust gas introduction section 17 passes.
  • the receiving recess 9 for the control valve 4 a Has housing opening 18, which in a connection section 19 for one Exhaust gas supply line shown merges and that the housing opening 18 by one Introductory section collar 20 of the control valve insert 11 is closed.
  • the introduction section forms an exhaust gas inlet funnel 21, which enters a valve chamber 22 transforms.
  • the valve chamber 22 is via a double valve arrangement 23 with a collar through the introduction section 15 and 20 and the snug portion 13 of the control valve insert 11 closed recess 9 connected housing chamber 24 connected.
  • the control valve insert 11 has a seal that is sealed off from the housing chamber 24 Actuating chamber 25, which is opposite the actuator 6 Atmosphere is sealed, with actuating rods 26 and 27 of the double valve arrangement 23 and the actuating device 6 each protrude into the actuation chamber 25 and there contact each other.
  • FIG. 1 the receiving recess 9 with the control valve insert 11 is parallel to Combustion air intake pipe section 1 arranged, whereas the exploded view after Fig. 2 shows an arrangement at a right angle to the intake pipe section 1. in the the rest corresponds to that of FIG. 1 and has the same numbering of the components Mistake.
  • the design according to the invention enables improved uniform distribution of the recirculated exhaust gas to the individual cylinders of the internal combustion engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
EP99121637A 1999-01-15 1999-10-30 Tubulure d'air d'admission pour moteurs diesel Expired - Lifetime EP1020635B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19901318 1999-01-15
DE19901318A DE19901318A1 (de) 1999-01-15 1999-01-15 Brennluftansaugrohrabschnitt für Dieselbrennkraftmaschinen

Publications (3)

Publication Number Publication Date
EP1020635A2 true EP1020635A2 (fr) 2000-07-19
EP1020635A3 EP1020635A3 (fr) 2000-10-18
EP1020635B1 EP1020635B1 (fr) 2006-02-01

Family

ID=7894326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99121637A Expired - Lifetime EP1020635B1 (fr) 1999-01-15 1999-10-30 Tubulure d'air d'admission pour moteurs diesel

Country Status (2)

Country Link
EP (1) EP1020635B1 (fr)
DE (2) DE19901318A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2813345A1 (fr) * 2000-08-29 2002-03-01 Bosch Gmbh Robert Systeme de reinjection des gaz d'echappement dans un moteur a combustion interne
FR2837243A1 (fr) * 2002-03-13 2003-09-19 Daimler Chrysler Ag Dispositif de recirculation des gaz d'echappement
EP1529952A3 (fr) * 2003-11-07 2005-07-13 Hitachi, Ltd. Système électronique de commande de recirculation des gaz d'échappement
EP2243947A1 (fr) * 2009-04-18 2010-10-27 Mahle International GmbH Module d'aspiration doté d'une recirculation de gaz d'échappement intégrée

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5654947A (en) * 1979-10-09 1981-05-15 Toyota Motor Corp Intake and egr controller for diesel engine
DE4338192C2 (de) * 1993-11-09 1998-03-19 Pierburg Ag Elektromagnetisches Steuerventil für Abgasrückführung
DE69600224T2 (de) * 1995-07-13 1998-07-23 Aisan Ind Abgasrückführung
JPH09228901A (ja) * 1995-12-21 1997-09-02 Denso Corp Ｅｇｒ制御弁およびそれを用いた排気ガス再循環装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2813345A1 (fr) * 2000-08-29 2002-03-01 Bosch Gmbh Robert Systeme de reinjection des gaz d'echappement dans un moteur a combustion interne
FR2837243A1 (fr) * 2002-03-13 2003-09-19 Daimler Chrysler Ag Dispositif de recirculation des gaz d'echappement
EP1529952A3 (fr) * 2003-11-07 2005-07-13 Hitachi, Ltd. Système électronique de commande de recirculation des gaz d'échappement
US7121268B2 (en) 2003-11-07 2006-10-17 Hitachi, Ltd. Electronic EGR gas control system
EP2243947A1 (fr) * 2009-04-18 2010-10-27 Mahle International GmbH Module d'aspiration doté d'une recirculation de gaz d'échappement intégrée
US8925530B2 (en) 2009-04-18 2015-01-06 Mahle International Gmbh Intake module with integrated exhaust gas recirculation

Also Published As

Publication number Publication date
DE59913094D1 (de) 2006-04-13
EP1020635A3 (fr) 2000-10-18
EP1020635B1 (fr) 2006-02-01
DE19901318A1 (de) 2000-07-20

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