EP2843223B1 - Vanne mélangeuse d'un moteur à combustion interne - Google Patents

Vanne mélangeuse d'un moteur à combustion interne Download PDF

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Publication number
EP2843223B1
EP2843223B1 EP13464011.9A EP13464011A EP2843223B1 EP 2843223 B1 EP2843223 B1 EP 2843223B1 EP 13464011 A EP13464011 A EP 13464011A EP 2843223 B1 EP2843223 B1 EP 2843223B1
Authority
EP
European Patent Office
Prior art keywords
flap
flaps
duct
exhaust gas
mixer valve
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.)
Not-in-force
Application number
EP13464011.9A
Other languages
German (de)
English (en)
Other versions
EP2843223A1 (fr
Inventor
Daniel Muresan
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive 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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Priority to EP13464011.9A priority Critical patent/EP2843223B1/fr
Priority to US14/915,846 priority patent/US9856832B2/en
Priority to PCT/EP2014/065800 priority patent/WO2015028207A1/fr
Priority to CN201480048160.1A priority patent/CN105829693B/zh
Publication of EP2843223A1 publication Critical patent/EP2843223A1/fr
Application granted granted Critical
Publication of EP2843223B1 publication Critical patent/EP2843223B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02M26/51—EGR valves combined with other devices, e.g. with intake valves or compressors
    • 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
    • F02M26/52—Systems for actuating EGR valves
    • 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
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • F02M26/54—Rotary actuators, e.g. step motors
    • 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
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/64—Systems for actuating EGR valves the EGR valve being operated together with an intake air throttle
    • 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
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves

Definitions

  • the invention relates to a mixing valve of an internal combustion engine of a motor vehicle with a flap arranged in an intake passage and a flap disposed in an exhaust passage, with rotatably mounted, the flaps supporting waves, the intake passage and the exhaust passage into a common collection channel, and with a drive device of Flaps, wherein the drive means comprises a single actuator and a transmission for controlling the two flaps.
  • Such mixing valves are often used in exhaust gas recirculation systems of internal combustion engines of modern motor vehicles and are known from practice, see for example the US 2005/0241702 A1 .
  • the movements of the flaps of the intake passage and the exhaust passage are controlled such that the flap disposed in the exhaust passage opens linearly from the first position with a drive signal of the drive means.
  • the flap arranged in the intake passage initially remains in the first position and is only moved when the drive device is driven by an intended setting range.
  • the flaps should therefore be controlled independently of each other.
  • adjusting levers and backlashes are provided in the gearbox, which decouple the flaps in the intended parking areas of the drive device.
  • the invention is based on the problem, so to form a mixing valve of the type mentioned that it is very simple and allows decoupling the drive of the flaps.
  • the shaft is driven, which opposes the drive the least resistance.
  • the flaps are according to the invention simply decoupled that the one flap is held with a slightly larger force in its initial position or rests against a stop.
  • the number of movable components is kept particularly low.
  • the number of hardware and software components of the mixing valve can be kept particularly low thanks to the invention.
  • the mixing valve is therefore particularly simple.
  • Known differential gear also make very compact, so that the mixing valve has particularly small dimensions.
  • the drive device generates according to another advantageous embodiment of the invention, an active closing movement of the valve disposed in the intake passage, when the arranged in the intake passage flap is biased in an open position against a stop.
  • the position of the valve disposed in the intake passage flap is detected by a contactless sensor.
  • transition of the drive arranged in the exhaust duct flap to the valve disposed in the intake flap is particularly simple according to another advantageous embodiment of the invention, when the arranged in the exhaust duct flap has a second stop in the open position.
  • a targeted control of the flaps can be easily achieved according to another advantageous embodiment of the invention, when a arranged in the intake passage flap biasing spring element has a greater spring stiffness than a arranged in the exhaust duct flap biasing spring element.
  • the ratio of the maximum flows in the mixing valve can be easily adjusted according to another advantageous development of the invention, if the exhaust duct has a greater flow resistance than the intake duct.
  • FIG. 1 schematically shows an internal combustion engine 1 with an intake passage 2 and an exhaust pipe 3.
  • the intake passage 2 has an intake passage 3, is sucked through the air from the environment.
  • an exhaust passage 5 via a mixing valve 6 into the intake passage 2.
  • the mixing valve 6 performs gas flows from the intake passage 4 and from the exhaust passage 5 to a common gas flow in a collecting channel 7 together.
  • the gas flows in the mixing valve 6 can be controlled by a drive device 8 with a single electric servomotor 9.
  • the internal combustion engine 1 has a turbocharger 10, which compresses a gas stream in the collecting channel 7 and the internal combustion engine 1 feeds.
  • other components of the internal combustion engine 1 and the turbocharger 10, such as sensors, other valves and intercooler are not shown.
  • FIG. 2 schematically shows the mixing valve 6 with the drive device 8 from FIG. 1 ,
  • the mixing valve 6 has in the intake passage 4 and in the exhaust passage 5 respectively pivotable shafts 11, 12 arranged thereon with flaps 13, 14 for controlling the cross sections of the intake passage 4 and the exhaust passage 5.
  • the drive means 8 has a transmission 15 with a differential gear sixteenth
  • the only servo motor 9 drives the gear 15, which in turn drives the differential gear 16.
  • the shafts 11, 12 and thus the flaps 13, 14 are driven.
  • the flaps 13, 14 are also each biased by spring elements 17, 18 in a basic position. In the basic positions, the flaps 13, 14 abut against schematically represented stops 19, 20.
  • the shafts 11, 12 are mounted in a housing, not shown, of the mixing valve 6.
  • the housing also accommodates the servomotor 9 and the transmission 15 with the differential gear 16.
  • the differential gear 16 has a directly driven by the gear 15 cage 22 in which a planet gear 23 is mounted.
  • the planetary gear 23 is connected to two drive wheels 24, 25 engaged.
  • the drive wheels 24, 25 are rotatably connected to the shafts 11, 12.
  • the spring element 17 of the arranged in the intake passage 4 flap 13 has a greater spring stiffness than the spring element 18 of the arranged in the exhaust passage 5 flap 14.
  • FIG. 3 The movements of the flaps 13, 14 between a basic position and a relation to this rotated by 90 ° position over a set angle of 0 ° to 180 ° are in FIG. 3 shown.
  • a14 the movement of the flap 14 arranged in the exhaust duct 5 and with a13 the movement of the flap 13 arranged in the intake duct 4 are identified.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Multiple-Way Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Claims (7)

  1. Vanne de mélange (6) d'un moteur à combustion interne (1) d'un véhicule automobile avec un clapet (13) disposé dans un canal d'aspiration (4) et un clapet (14) disposé dans un canal de gaz d'échappement (5), avec des arbres (11, 12) montés de façon rotative et portant les clapets (13, 14), dans laquelle le canal d'aspiration (4) et le canal de gaz d'échappement (5) débouchent dans un canal collecteur commun (7), et avec un dispositif d'entraînement (8) des clapets (13, 14), dans laquelle le dispositif d'entraînement (8) présente un seul servomoteur (9) et une transmission (15) pour la commande des deux clapets (13, 14), caractérisée en ce que la transmission (15) présente une transmission différentielle (16) et en ce que la transmission différentielle (16) est disposée entre les deux arbres (11, 12).
  2. Vanne de mélange selon la revendication 1, caractérisée en ce qu'au moins un des arbres est précontraint dans une position de base au moyen d'un élément de ressort.
  3. Vanne de mélange selon la revendication 2, caractérisée en ce que le clapet disposé dans le canal d'aspiration est précontraint contre une butée dans une position ouverte.
  4. Vanne de mélange selon la revendication 2 ou 3, caractérisé en ce que le clapet disposé dans le canal de gaz d'échappement est précontraint contre une butée dans la position fermée.
  5. Vanne de mélange selon la revendication 4, caractérisée en ce que le clapet disposé dans le canal de gaz d'échappement comporte une deuxième butée dans la position ouverte.
  6. Vanne de mélange selon la revendication 2, caractérisée en ce qu'un élément de ressort qui précontraint le clapet disposé dans le canal d'aspiration présente une raideur de ressort plus élevée qu'un élément de ressort qui précontraint le clapet disposé dans le canal de gaz d'échappement.
  7. Vanne de mélange selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le canal de gaz d'échappement présente une résistance à l'écoulement plus élevée que le canal d'aspiration.
EP13464011.9A 2013-09-02 2013-09-02 Vanne mélangeuse d'un moteur à combustion interne Not-in-force EP2843223B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP13464011.9A EP2843223B1 (fr) 2013-09-02 2013-09-02 Vanne mélangeuse d'un moteur à combustion interne
US14/915,846 US9856832B2 (en) 2013-09-02 2014-07-23 Mixer valve of an internal combustion engine
PCT/EP2014/065800 WO2015028207A1 (fr) 2013-09-02 2014-07-23 Vanne de mélange d'un moteur à combustion interne
CN201480048160.1A CN105829693B (zh) 2013-09-02 2014-07-23 内燃机的组合阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13464011.9A EP2843223B1 (fr) 2013-09-02 2013-09-02 Vanne mélangeuse d'un moteur à combustion interne

Publications (2)

Publication Number Publication Date
EP2843223A1 EP2843223A1 (fr) 2015-03-04
EP2843223B1 true EP2843223B1 (fr) 2017-02-01

Family

ID=49354615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13464011.9A Not-in-force EP2843223B1 (fr) 2013-09-02 2013-09-02 Vanne mélangeuse d'un moteur à combustion interne

Country Status (4)

Country Link
US (1) US9856832B2 (fr)
EP (1) EP2843223B1 (fr)
CN (1) CN105829693B (fr)
WO (1) WO2015028207A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1771821U (de) 1957-06-14 1958-08-07 Radiologie Cie Gle Mechanische betaetigungsvorrichtung fuer mehrere absperrorgane.
SE526824C2 (sv) * 2004-03-26 2005-11-08 Stt Emtec Ab Ventil
US7237531B2 (en) * 2005-06-17 2007-07-03 Caterpillar Inc. Throttle and recirculation valves having a common planetary drive
FR2900455B1 (fr) * 2006-04-26 2008-07-04 Valeo Sys Controle Moteur Sas Vanne a deux papillons actionnes par un moteur commun
FR2926114B1 (fr) * 2008-01-03 2012-12-14 Valeo Sys Controle Moteur Sas Boucle egr d'un moteur a combustion interne d'un vehicule automobile
DE102008030785B4 (de) * 2008-06-28 2012-10-31 Pierburg Gmbh Abgasrückführvorrichtung für eine Verbrennungskraftmaschine
JP4730447B2 (ja) * 2009-02-18 2011-07-20 株式会社デンソー 低圧ｅｇｒ装置
WO2011024211A1 (fr) * 2009-08-24 2011-03-03 三菱電機株式会社 Mécanisme d’ouverture / de fermeture de vannes
JP5287953B2 (ja) * 2011-04-27 2013-09-11 株式会社デンソー 低圧ｅｇｒ装置
US9587565B2 (en) * 2011-06-17 2017-03-07 Caterpillar Inc. Valve stop for engine with exhaust gas recirculation
FR2979409B1 (fr) * 2011-08-23 2013-08-23 Valeo Sys Controle Moteur Sas Vanne trois-voies a deux obturateurs et detection de course, notamment pour circuit d'admission de moteur d'automobile
DE102012203156B4 (de) 2012-02-29 2014-01-09 Continental Automotive Gmbh Mischventil einer Brennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2843223A1 (fr) 2015-03-04
CN105829693B (zh) 2019-06-21
CN105829693A (zh) 2016-08-03
US20160195043A1 (en) 2016-07-07
US9856832B2 (en) 2018-01-02
WO2015028207A1 (fr) 2015-03-05

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