EP1926907B1 - Dispositif destine a commander un flux de gaz d'echappement - Google Patents

Dispositif destine a commander un flux de gaz d'echappement Download PDF

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Publication number
EP1926907B1
EP1926907B1 EP06791380.6A EP06791380A EP1926907B1 EP 1926907 B1 EP1926907 B1 EP 1926907B1 EP 06791380 A EP06791380 A EP 06791380A EP 1926907 B1 EP1926907 B1 EP 1926907B1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
slide
closure element
closure
actuator
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
EP06791380.6A
Other languages
German (de)
English (en)
Other versions
EP1926907A2 (fr
Inventor
Peter Geskes
Hans-Peter Klein
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.)
Mahle Behr GmbH and Co KG
Mahle Behr Kornwestheim GmbH
Original Assignee
Mahle Behr GmbH and Co KG
Mahle Behr Kornwestheim 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 Mahle Behr GmbH and Co KG, Mahle Behr Kornwestheim GmbH filed Critical Mahle Behr GmbH and Co KG
Publication of EP1926907A2 publication Critical patent/EP1926907A2/fr
Application granted granted Critical
Publication of EP1926907B1 publication Critical patent/EP1926907B1/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
    • F02M26/65—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
    • 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
    • F02M26/23—Layout, e.g. schematics
    • F02M26/25—Layout, e.g. schematics with coolers having bypasses
    • F02M26/26—Layout, e.g. schematics with coolers having bypasses characterised by details of the bypass valve
    • 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
    • F02M26/38—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in parallel
    • 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
    • F02M26/39—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in series
    • 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
    • F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
    • 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
    • F02M26/71—Multi-way valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86718—Dividing into parallel flow paths with recombining
    • Y10T137/86759—Reciprocating

Definitions

  • the present invention relates to a device for controlling an exhaust gas stream according to the preamble of claim 1.
  • the recirculated exhaust gas is generally to be cooled by means of an exhaust gas cooler, wherein to ensure the function regularly a bypass line is arranged parallel to the exhaust gas cooler.
  • a bypass line is arranged parallel to the exhaust gas cooler.
  • control valves are known in which a first valve performs the dosage and a second valve distributes the cooler and bypass.
  • this requires two separate drive units for the butterfly valves.
  • EP-1275838 Another example of such a device is in EP-1275838 shown. It is the object of the invention to provide a device for controlling an exhaust gas flow, which can be produced inexpensively by a small number of required components.
  • the control mechanism By providing the control mechanism with the actuator, it is possible according to the invention to adjust both the first slide element and the second slide element, which regularly requires only a single actuator.
  • one of the at least three connections is preferably connected to an exhaust gas line, an exhaust gas cooler and a bypass line of the exhaust gas cooler.
  • the two slide elements z. B. downstream of the exhaust pipe and distribute the exhaust gas supplied in the exhaust pipe via only one actuator metered on exhaust gas cooler and bypass line.
  • the exhaust pipe of the bypass line and the exhaust gas cooler may be arranged downstream, which brings at least in Norrnal des when guided through the exhaust gas cooler, a lower exhaust gas temperature in the region of the slide elements with it.
  • At least the first slider element is force-urged in the closing direction by means of a spring, whereby a particularly tight closure of the closure member is present in the closed position.
  • the exhaust gas flow preferably exerts a pressure in the opening direction on at least the first closure member.
  • the actuator and the control mechanism can be designed physically small, since only small opening forces are required.
  • the exhaust gas flow can also act in the closing direction on the closure member.
  • a further closing element which is movable relative to the first closure element is provided on at least the first slide element, the closure elements successively releasing an opening associated therewith in the course of an opening movement of the slide element.
  • a substantially two-stage opening of the path of the first slide element can be achieved, which is given by simple means a particularly flexible adjustability of the exhaust gas flow.
  • suitable, for example, conical shape of the closure member and a good stepless adjustability can be realized in addition to the two-stage.
  • the control mechanism comprises at least one rotatably mounted lever in order to deflect the force of the actuator suitably to the slide elements.
  • the control mechanism may also comprise a rotatable shaft with an eccentric element or a link plate.
  • These mechanical elements of the control mechanism are each suitable for themselves or in combination to associate an opening of the first slider element and a second position of the actuator, an opening of the second slider element a first position of the actuator.
  • the actuator may preferably comprise a linear, in particular hydraulic drive unit or alternatively a rotary, in particular electromotive drive unit.
  • each actuator is suitable for combination with a device according to the invention. With a suitable design of the control mechanism, the spatial arrangement of the actuator can be made so that the actuator undergoes only a small heat application by the recirculated exhaust gas.
  • At least the first closure member is plate-shaped. Sealing final valve disc require little space and are inexpensive to produce.
  • At least the first closure member is conical, whereby a suitable shaping of a particularly good adjustability of the opening between the respective terminals is possible.
  • At least the first closure member may comprise a rotatable damper.
  • any suitable from the temperature requirements forth suitable design of a valve closure can be provided.
  • the device according to the first embodiment according to Fig. 1 comprises a housing 1 with a first port 2, a second port 3 and a third port 4.
  • the first port 2 is divided into two, but connected via a suitable, not shown branch to the same exhaust passage for supplying exhaust gas of an internal combustion engine.
  • the two separate according to the schematic sectional view chambers 2a, 2b of the housing 1 are thus subjected to substantially the same exhaust gas pressure.
  • the chamber 3a has a connection 3b to the chamber 2a of the terminal 2 and a connection 3c to the chamber 2b of the terminal 2.
  • the chamber 4a has a connection 4b to the chamber 2a of the terminal 2 and a connection 4c to the chamber 2b of the terminal 2.
  • the compounds 4b, 4c and the compounds 3b, 3c are each in pairs on a common axis.
  • a first slider element 6 is arranged along the connection axis of the connections 4b, 4c. It comprises a translationally movable in its longitudinal direction slide rod 6a, which at an outer opening 6b the housing 1 is slidably guided in a substantially sealing. At one end of the pusher rod 6a is a closure member connected to the valve rod 6a and designed as a valve disk 6c, which can sealingly abut the connection 4c.
  • a second valve disk 6d is slidably mounted on the slide rod 6a and supported against the first valve disk 6c via a spring element 6g. Andemends the pusher rod 6a, this has a slider 6e, wherein a spring 6f between the wall of the chamber 2a and the slider 6e is supported.
  • the spring 6f acts according to the illustration Fig. 1 the first slider element 6 with a leftward force.
  • the second valve plate 6d is pressed by the spring 6g sealingly on the connection 4b, so that the spring 6g exerts a force opposite to the support against the housing 1 of the spring 6f opposite force.
  • the spring 6f is designed to be stronger than the spring 6g, so that the summed spring forces hold both valve disks 6c, 6d in the closed position.
  • a second slide element 7 is arranged, which is constructed in the same way as the first slide element 6, so that its components carry corresponding reference numerals 7a to 7g.
  • the second slide element 7 is arranged on the axis of the connections 3b, 3c so that its valve plates 7c, 7d are arranged to close off the connections 3c, 3b.
  • the second slide element 7 is shown in a fully open position, which can be seen at the shifted to the right position of the slide rod 7a.
  • the first valve disk 7c of the second slide element 7 has a greater distance from its associated opening 3c than the second valve disk 7d from its associated opening 3b.
  • the spring 6g, 7g relaxes gradually between the valve plates until the second valve plate 6d, 7d via a driver, not shown, of the valve rod 6a is also forcibly moved in the opening direction. Due to this two-stage opening, a particularly well-defined metering of the recirculated exhaust gas flow can be effected.
  • a control mechanism 8 comprises a rotatably mounted lever 8 a, wherein the pivot point is stationary relative to the housing 1.
  • the rotatably mounted lever 8a is formed so that when moving in one direction a sliding surface 8b of the lever 8a with the Gleitnocke 6e of the first slider element cooperates and deflection in the opposite direction with the Gleitnocke 7e of the second slide element 7.
  • the respectively non-actuated slide element device in each case out of engagement with the sliding surface 8b of the lever 8a, so that this slide element is closed due to the spring forces described above.
  • An unillustrated actuator is formed in the form of a linear hydraulic force introduction unit.
  • the lever 8a can be drivably moved in one or the other direction, whereby either the first slide element 6 or the second slide element 7 is actuated in the opening direction.
  • the chambers 2 a, 2 b supplying the exhaust gas are respectively connected to the chamber 4 a via the connections 4 b, 4 c.
  • the connection 4 leads to an exhaust gas cooler of the recirculated exhaust gas.
  • the second slide element 7 is actuated in the opening direction, wherein the channels 2a, 2b are connected via the connections 3b, 3c with the channel 3a.
  • the channel 3a is connected via the port 3 with a bypass line in communication, which bypasses the exhaust gas cooler in parallel.
  • valve plates 4b, 4c, 3b, 3c can be at least partially conical and optionally accommodated in corresponding cup-shaped valve seats be to allow an even finer dosage of the recirculated exhaust gas stream.
  • the second embodiment according to Fig. 2 has in contrast to the first embodiment, only a single feeding chamber 102a with a port 102.
  • the feeding chamber 102a is connected via a first connection opening 103b with a chamber 103a of a second terminal 103 and via a connection opening 104b with a chamber 104a of a third terminal 104th Similar to the first embodiment, a first slider element 106 and a second slider element 107 are provided.
  • each of the slide elements 106, 107 has only one valve plate 106c, 107c, which in each case at the end of a corresponding slide rod 106a, 107a is fixed.
  • the two slide rods 106a, 107a are guided in openings 106b, 107b of the housing 101 and are subjected to a force in the closing direction via springs 106f, 107f.
  • At the end of the slide rods 106a, 107a are sliding surfaces 106e, 107e.
  • the control mechanism 108 of the second embodiment comprises a rotatable shaft 108a, which is perpendicular to the slide rods 106a and 107a and each at the height of the sliding surfaces 106e, 107e cam-like eccentric elements 108b, 108c.
  • the eccentric elements 108b, 108c are substantially the same shape, but offset by a rotation angle of 180 ° to each other on the shaft 108a.
  • An unillustrated actuator is formed in the manner of an electric motor and optionally connected via a transmission gear with the rotary shaft 108a. But it may also be a linear hydraulic cylinder, which transmits, for example via a rack and a pinion linear motion in the rotational movement of the rotary shaft 108a.
  • the components, in particular the control mechanisms 8, 108, of the first and the second embodiment can be interchanged.
  • only one of the slide elements can be designed in two stages.
  • the arrangement of the closure members may be acted upon by the exhaust gas pressure in the closing direction or in the opening direction, depending on the arrangement.

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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)
  • Exhaust Silencers (AREA)
  • Mechanically-Actuated Valves (AREA)

Claims (10)

  1. Dispositif de commande d'un flux de gaz d'échappement, comprenant:
    un carter (1, 101) comportant au moins un premier, un deuxième et un troisième raccordement (2, 3, 4, 102, 103, 104) servant à la jonction avec un premier, un deuxième et un troisième conduit de gaz d'échappement servant au guidage de gaz d'échappement d'un moteur à combustion interne,
    un premier élément à tiroir (6, 106) comportant une première tige de tiroir mobile (6a, 106a) et un premier élément de fermeture (6c, 106c) disposé sur ladite tige de tiroir,
    un deuxième élément à tiroir (7, 107) comportant une deuxième tige de tiroir mobile (7a, 107a) et un deuxième élément de fermeture (7c, 107c) disposé sur ladite tige de tiroir, et
    un actionneur servant à l'actionnement servocommandé du dispositif,
    où une jonction (4c, 104b) située entre le premier et le deuxième raccordement peut être fermée, de façon réglable, par le premier élément de fermeture (6, 106),
    où une jonction (3c, 103b) située entre le premier et le troisième raccordement peut être fermée, de façon réglable, par le deuxième élément de fermeture (7c, 107c),
    où il est prévu un mécanisme de servocommande (8, 108) relié à l'actionneur, où le premier élément à tiroir (6, 106) et le deuxième élément à tiroir (7, 107) peuvent être déplacés par un mécanisme de servocommande (8, 108),
    caractérisé en ce que le mécanisme de servocommande (8) comprend au moins un levier (8a) monté en rotation ou comprend un arbre tournant (108a) comportant un élément excentrique (108b, 108c) ou comprend un plateau à coulisse.
  2. Dispositif selon la revendication 1, caractérisé en ce que chacun au moins des trois raccordements (2, 3, 4, 102, 103, 104) est relié à une conduite de gaz d'échappement, à un refroidisseur de gaz d'échappement et à une conduite du refroidisseur de gaz d'échappement.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'au moins le premier élément à tiroir (6, 106) peut être sollicité par une force s'exerçant dans la direction de fermeture, au moyen d'un ressort.
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le flux de gaz d'échappement exerce une pression, dans la direction d'ouverture, sur au moins le premier élément de fermeture (106c).
  5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu, sur au moins le premier élément à tiroir (6), un autre élément de fermeture (6d) mobile par rapport au premier élément de fermeture (6c), où les éléments de fermeture (6c, 6d), au cours d'un mouvement d'ouverture de l'élément à tiroir (6), libèrent l'un après l'autre une ouverture (4b, 4c) qui leur est associée.
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'actionneur comprend une unité d'entraînement linéaire, en particulier hydraulique.
  7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'actionneur comprend une unité d'entraînement rotative, en particulier électromotrice.
  8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins le premier élément de fermeture (6c) est configuré en forme de champignon.
  9. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'au moins le premier élément de fermeture est configuré de façon conique.
  10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'au moins le premier élément de fermeture comprend un clapet de réglage tournant.
EP06791380.6A 2005-09-08 2006-09-07 Dispositif destine a commander un flux de gaz d'echappement Not-in-force EP1926907B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510044089 DE102005044089A1 (de) 2005-09-08 2005-09-08 Vorrichtung zur Steuerung eines Abgasstroms
PCT/DE2006/001611 WO2007028381A2 (fr) 2005-09-08 2006-09-07 Dispositif destine a commander un flux de gaz d'echappement

Publications (2)

Publication Number Publication Date
EP1926907A2 EP1926907A2 (fr) 2008-06-04
EP1926907B1 true EP1926907B1 (fr) 2016-08-31

Family

ID=37763188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06791380.6A Not-in-force EP1926907B1 (fr) 2005-09-08 2006-09-07 Dispositif destine a commander un flux de gaz d'echappement

Country Status (6)

Country Link
US (1) US7938106B2 (fr)
EP (1) EP1926907B1 (fr)
JP (1) JP2009507172A (fr)
CN (1) CN101287901A (fr)
DE (1) DE102005044089A1 (fr)
WO (1) WO2007028381A2 (fr)

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ITMI20080450A1 (it) * 2008-03-17 2009-09-18 Dellorto Spa Valvola egr per il ricircolo dei gas di scarico al collettore di aspirazione di motori a combustione interna.
DE102008027490A1 (de) * 2008-06-10 2009-12-31 Pierburg Gmbh Ventilsystem
EP2133546B1 (fr) * 2008-06-12 2011-08-17 Kia Motors Corporation Dispositif de recirculation des gaz d'échappement et véhicule
JP4793454B2 (ja) * 2009-02-06 2011-10-12 株式会社デンソー 高圧ｅｇｒ装置
DE102009036284A1 (de) 2009-08-06 2011-02-24 Pierburg Gmbh Ventilvorrichtung für eine Verbrennungskraftmaschine
DE102009051787B4 (de) 2009-11-03 2011-11-10 Pierburg Gmbh Vorrichtung zur Steuerung eines Abgasstroms einer Verbrennungskraftmaschine
DE102010006037B4 (de) 2010-01-27 2013-01-17 Pierburg Gmbh Ventilvorrichtung für eine Verbrennungskraftmaschine
FR2983252B1 (fr) * 2011-11-25 2015-01-30 Valeo Systemes De Controle Moteur Vanne de controle pour systeme de recirculation des gaz d'echappement d'un moteur a combustion interne
DE102016211725B4 (de) 2016-06-29 2019-06-19 Hanon Systems Ventilanordnung für AGR-Kühler
DE102016211724B4 (de) 2016-06-29 2019-06-19 Hanon Systems AGR-Kühler-Anordnung mit selektiv tätigem Bypassventil
CN110230558B (zh) * 2019-06-29 2024-05-07 无锡同益汽车动力技术有限公司 一种双阀芯热端egr阀阀座结构
CN111188708B (zh) * 2019-12-03 2021-11-30 一汽解放汽车有限公司 一种发动机排气再循环装置及发动机
CN112392985A (zh) * 2020-11-11 2021-02-23 济南德创试验仪器有限公司 一种三位四通电磁球阀
EP4105555B1 (fr) * 2021-06-14 2024-10-09 Siemens Aktiengesellschaft Ensemble soupape à gaz

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Also Published As

Publication number Publication date
DE102005044089A1 (de) 2007-03-15
WO2007028381A2 (fr) 2007-03-15
EP1926907A2 (fr) 2008-06-04
WO2007028381A3 (fr) 2007-05-10
JP2009507172A (ja) 2009-02-19
US20080250787A1 (en) 2008-10-16
CN101287901A (zh) 2008-10-15
US7938106B2 (en) 2011-05-10

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