EP1355057B1 - Dispositif pour la recirculation des gaz d'échappement d'un moteur à combustion interne - Google Patents

Dispositif pour la recirculation des gaz d'échappement d'un moteur à combustion interne Download PDF

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Publication number
EP1355057B1
EP1355057B1 EP20030005203 EP03005203A EP1355057B1 EP 1355057 B1 EP1355057 B1 EP 1355057B1 EP 20030005203 EP20030005203 EP 20030005203 EP 03005203 A EP03005203 A EP 03005203A EP 1355057 B1 EP1355057 B1 EP 1355057B1
Authority
EP
European Patent Office
Prior art keywords
channel
housing
valve
exhaust gas
valve housing
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
EP20030005203
Other languages
German (de)
English (en)
Other versions
EP1355057A2 (fr
EP1355057A3 (fr
Inventor
Bernd Dr.-Ing. Bareis
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.)
BorgWarner Esslingen GmbH
Original Assignee
BorgWarner Esslingen 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 BorgWarner Esslingen GmbH filed Critical BorgWarner Esslingen GmbH
Publication of EP1355057A2 publication Critical patent/EP1355057A2/fr
Publication of EP1355057A3 publication Critical patent/EP1355057A3/fr
Application granted granted Critical
Publication of EP1355057B1 publication Critical patent/EP1355057B1/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
    • 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
    • F02M26/73—Housings with means for heating or cooling the EGR 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
    • F02M26/22—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
    • F02M26/52—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
    • F02M26/65—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
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/68—Closing members; Valve seats; Flow passages

Definitions

  • the invention relates to a device for recirculating the exhaust gas of an internal combustion engine with the features in the preamble of claim 1.
  • a device of this type is known ( DE 199 20 520 A1 ), in which at one end a drive device receiving and at the other end containing the exhaust valve, integrally continuous valve housing includes an inner annular coolant passage through which a coolant is hin frenchleitbar, z. B. is diverted from the coolant circuit of the internal combustion engine.
  • the valve housing can be cooled, whereby adjacent components of the exhaust valve can be cooled via this cooling of the valve housing, for. B. the valve member actuating valve stem. Due to the cooling in this area, the heat introduced there by the exhaust gas to be controlled is also kept away from the drive device.
  • the formation of the annular inner coolant channel in the valve housing is associated with comparatively high production costs. So z. B.
  • the actual valve housing is formed from a tube part with a radial flange part, wherein the tube part contains the valve seat, which is dominated by a likewise tubular, widened at the end to a valve head valve body.
  • the tubular valve housing is inserted into a cylinder space of a housing and connected in the region of the flange with this housing.
  • This housing has an inlet and outlet for exhaust gas and an annular coolant channel, which is supplied via an inlet for cooling coolant, which is discharged via an outlet.
  • the navbetätigbares valve member are arranged with valve seat at the lower end of a housing, at the valve seat opposite end of a drive means for the valve member is arranged.
  • a drive means for the valve member is arranged for rotary actuation of the valve member.
  • a shaft which is guided, starting from the drive means through the housing to its end and the valve member.
  • an annular coolant channel is included, the coolant is supplied, the z. B. is discharged radially thereto.
  • the housing includes a cavity in which a spring surrounding the actuating shaft of the valve member is arranged.
  • the cooling channel is due to this arrangement far from the valve member and valve seat and can cause effective cooling for this, not even for the control shaft of the valve member and their storage in the housing, which is provided at an axial distance from the cooling channel.
  • the invention has for its object to provide a device for recycling the exhaust gas of an internal combustion engine of the type mentioned, which can be easily and inexpensively manufactured.
  • the coolant channel is formed and limited by two components formed transversely to the channel profile, the coolant channel can be realized easily and inexpensively, wherein z. B. one of the components, preferably z. B. the valve housing, can be inexpensively manufactured as a die-cast part.
  • all parts that relate to the coolant channel and also the coolant supply and coolant discharge, diecasting and shape so that they all in the shaping of this one component, eg. B. the valve housing, are formed with the same.
  • a device 10 which serves for the return of the exhaust gas of an internal combustion engine, not shown, and hereinafter also referred to as exhaust gas recirculation valve.
  • This has a valve housing 11, in which an exhaust valve 12 is arranged, which controls the passage of exhaust gas through the valve housing 11.
  • the exhaust valve 12 has a valve plate 13 at the lower end of a valve stem 14, on which a drive device 15, not shown in detail, for actuating the valve disk 13 in the direction of the longitudinal central axis of the valve stem 14 in the open position, ie downwards, or in the closed position, ie upwards, attacks.
  • the exhaust valve 12 is a lift valve.
  • the exhaust valve 12 is formed differently, for. B. as a slide valve, and here z. B. as a rotary valve, od. Like .. Any other type of valve comes as exhaust valve 12 just as well into consideration.
  • the valve housing 11 contains, above the valve seat ring 16, a valve chamber 18 which is connected to an outlet 19, via which the exhaust gas entering the valve chamber 18 exits in the direction of the arrow 20 when the exhaust valve 12 is open and is forwarded from there in the usual way.
  • the feeder the exhaust gas to be controlled by means of the exhaust valve 12 takes place in the drawings from below in the direction of arrow 21 z. B. by a housing 22 which may be formed as a hollow body.
  • the housing 22 receives the top of the valve housing 11 with exhaust valve 12, wherein the valve housing 11 and the housing 22 are fixedly and tightly interconnected.
  • the outlet 19 for the exhaust gas continues into the housing 22.
  • the device 10 further includes a cooling of the valve housing 11 serving circumferential coolant passage 30 in the interior, through which a coolant, for. B. the cooling water of the cooling circuit of the internal combustion engine, is hin manleitbar.
  • a coolant for. B. the cooling water of the cooling circuit of the internal combustion engine
  • hin mitleitbar In known exhaust gas recirculation valves, which are provided with an inner coolant channel, this channel is formed as a ring around closed annular recess in the interior of the valve housing 11. This can only be achieved with comparatively high production costs for the valve housing and otherwise expensive and costly.
  • the coolant channel 30 is instead by two transverse to the course of the coolant channel 30, ie in Fig. 1 and 2 formed in the vertical direction, composite components and limited, of which at least one component, the z. B.
  • valve housing 11 on a axial side 31 has a recessed and to this axial side 31 out open channel channel 32 as part of the coolant channel 30.
  • the other component in the embodiment shown z. B. is formed from the housing 22 is attached with an associated axial surface 33 to the open channel groove 32 containing axial side 31 of a component in the form of the valve housing 11 with completion and closure of the coolant channel 30.
  • This axial surface 33 of the other component which here from the housing 22, z. B. in the form of a hollow body, is planar in the embodiment shown and thus able to complete the channel groove 32 at the bottom of the axial side 31.
  • the axial surface 33 is provided with a recessed and open to this axial surface 33 channel channel, the assembly of the valve housing 11th and the housing 22 such that the axial side 31 bears against the axial surface 33, the upper channel channel 32 completes to form the coolant channel 30.
  • a seal 34 is arranged, for.
  • a metal bead seal or another, suitable sealing ring is arranged, for.
  • the one component which here consists of the valve housing 11, may contain a drain channel 35 and / or inflow channel 36 which is connected to the coolant channel 30, at least one of which is contained in a nozzle, as is provided here for the drainage channel 35.
  • the other component which is formed here from the housing 22, can have an inlet channel 37 and / or outlet channel communicating with the coolant channel 30, eg an inner channel leading to the channel channel 32.
  • the housing 22 includes only an inner inflow channel 37 which extends approximately parallel to the axis in the housing shell and opens into the inflow channel 36 of the valve housing 11.
  • the open channel groove 32 is open to the side of the valve housing 11, which faces the valve member in the form of the valve plate 13 and the drive device 15 is remote, ie in Fig. 1 and 2 downward.
  • This channel groove 32 is in the assembly by the axial surface 33 of the other component, the here from the housing 22, z. B. hollow body, is formed, closed.
  • This housing 22 includes a cylindrical interior 23 in which engages a correspondingly sized coaxial portion of the valve housing 11 which is sealed therein.
  • This housing 22, z. B. in the form of a hollow body is advantageously part of a cooling device, in particular a cooler, which serves for the cooling of the supplied exhaust gas.
  • At least one component, in particular here the valve housing 11, is formed from a die-cast part. This has the advantage that here the Channel channel 32, the inflow channel 36, the discharge channel 35 with nozzle and the remaining areas of the exhaust valve 12 can be formed inexpensively and in a molding process.
  • the open channel groove 32 of the valve housing 11 is open to the side of the valve housing 11, which faces away from the valve plate 13 and the drive means 15 faces.
  • the channel groove 32 in the illustration according to Fig. 1 and 2 open at the top.
  • the coolant channel 30 completing and closing component may be formed from a top-mounted lid.
  • downwardly open channel groove 32 may be the coolant passage 30 completing and closing component instead of the housing 22 from a bottom side attached to the axial side 31 lid may be formed.
  • the coolant channel 30 containing the cooling device is an integral part of the exhaust gas recirculation valve and formed in a particularly cost effective and simple manner in the design of the valve housing 11 with the same. This has a particularly advantageous in the production of the valve housing 11 as a die-cast z. As of metal or plastic, from.

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)
  • Details Of Valves (AREA)

Claims (6)

  1. Dispositif pour le recyclage des gaz d'échappement d'un moteur à combustion interne, avec une soupape d'échappement (12) commandant le passage du gaz d'échappement, agencé dans un boîtier de soupape (11), avec un dispositif d'entraînement (15) et avec au moins un canal d'agent de refroidissement (30) périphérique servant au refroidissement du boîtier de soupape (11), à travers lequel un agent de refroidissement peut être guidé, le canal d'agent de refroidissement (30) étant formé et délimité par deux pièces de construction assemblées transversalement au parcours du canal, parmi lesquelles une pièce de construction présente, sur un côté axial, une gouttière de canal renfoncée et ouverte vers ce côté axial, en tant que partie du canal d'agent de refroidissement (30), et l'autre pièce de construction est appliquée avec une surface axiale (33) contre le côté axial (31) de la première pièce de construction qui contient la gouttière de canal (32) ouverte, tout en complétant et en fermant le canal d'agent de refroidissement,
    caractérisé en ce que
    la pièce de construction comportant la gouttière de canal (32) sur un côté axial (31) est constituée par le boîtier de soupape (11), et la gouttière de canal (32) est ouverte vers le côté du boîtier de soupape (11) qui est tourné vers l'organe de soupape (13) et détourné du dispositif d'entraînement (15) pour l'organe de soupape (13), en ce que l'autre pièce de construction complétant et fermant le canal d'agent de refroidissement (30) est constituée par un boîtier (22) et en ce que le boîtier (22) contient un canal d'alimentation interne (37) s'étendant dans l'enveloppe de boîtier parallèlement à l'axe et débouchant dans le canal d'alimentation (36) du boîtier de soupape (11).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    la surface axiale (33) du boîtier (22) est plane.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    un joint d'étanchéité (34), par exemple un joint d'étanchéité en élastomère, un joint métallique à collet ou une bague d'étanchéité similaire, est agencé entre le boîtier de soupape (11) et le boîtier (22).
  4. Dispositif selon l'une des revendications 1 à 3,
    caractérisé en ce que
    le boîtier de soupape (11) contient un canal d'évacuation (35) et/ou un canal d'alimentation (36) relié au canal d'agent de refroidissement (30), par exemple dans une tubulure.
  5. Dispositif selon l'une des revendications 1 à 4,
    caractérisé en ce que
    le boîtier (22) est constitué d'un corps creux accueillant le boîtier de soupape (11) avec soupape d'échappement (12).
  6. Dispositif selon l'une des revendications 1 à 5,
    caractérisé en ce que
    le boîtier de soupape (11) est constitué d'une pièce moulée sous pression.
EP20030005203 2002-04-20 2003-03-08 Dispositif pour la recirculation des gaz d'échappement d'un moteur à combustion interne Expired - Lifetime EP1355057B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10217626 2002-04-20
DE10217626A DE10217626A1 (de) 2002-04-20 2002-04-20 Vorrichtung zur Rückführung des Abgases einer Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP1355057A2 EP1355057A2 (fr) 2003-10-22
EP1355057A3 EP1355057A3 (fr) 2005-11-16
EP1355057B1 true EP1355057B1 (fr) 2015-05-20

Family

ID=28458938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030005203 Expired - Lifetime EP1355057B1 (fr) 2002-04-20 2003-03-08 Dispositif pour la recirculation des gaz d'échappement d'un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP1355057B1 (fr)
DE (1) DE10217626A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0419060D0 (en) * 2004-08-27 2004-09-29 Delphi Tech Inc Valve actuating mechanism
US20090165449A1 (en) * 2006-02-24 2009-07-02 Behr Gmbh & Co. Kg Valve for regulating an exhaust gas flow of an internal combustion engine, heat exchanger for exhaust gas cooling, system having at least one valve and having at least one heat exchanger
DE102006045584A1 (de) * 2006-09-27 2008-05-15 Elringklinger Ag Dichtungssystem
ES2304092B1 (es) * 2006-11-17 2009-07-03 Valeo Termico S.A. Intercambiador de calor para gases, en especial de los gases de escape de un motor.
DE112009000365B4 (de) * 2008-05-19 2015-08-06 Mitsubishi Electric Corporation Befestigungsvorrichtung für ein Einzugsabgasrezirkulationsventil
WO2011061795A1 (fr) * 2009-11-18 2011-05-26 三菱電機株式会社 Vanne egr, et système de fixation de celle-ci
GB2481024B (en) * 2010-06-08 2015-12-16 Gm Global Tech Operations Inc Exhaust gas recirculation (EGR) valve assembly for an internal combustion engine
DE102010048865A1 (de) 2010-10-19 2012-04-19 Gustav Wahler Gmbh U. Co. Kg Abgasrückführventil
DE102011054091B4 (de) 2011-09-30 2018-08-16 Pierburg Gmbh Abdichtungsanordnung für ein in einer Bohrung eines Abgaskanalgehäuses angeordnetes Abgasventil
FR3068103B1 (fr) * 2017-06-27 2020-02-14 Valeo Systemes De Controle Moteur Vanne de regulation de debit d'un gaz destinee a etre assemblee a un receptacle et ensemble comprenant une telle vanne

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69729863T2 (de) * 1996-05-20 2005-08-25 Borgwarner Inc., Auburn Hills Automatisches fluidkontrollsystem mit druckbalanziertem elektromagnetventil
US5970960A (en) * 1996-09-18 1999-10-26 Nissan Motor Co., Ltd. Exhaust gas recirculation system of internal combustion engine
DE19744596A1 (de) * 1997-10-09 1999-04-15 Volkswagen Ag Abgasrückführventil
DE19920520C2 (de) 1999-05-05 2001-04-26 Daimler Chrysler Ag Vorrichtung zur Rückführung des Abgases einer Brennkraftmaschine
DE10207922A1 (de) * 2002-02-23 2003-09-04 Daimler Chrysler Ag Steuerventil, insbesondere für eine Brennkraftmaschine, zur gesteuerten Rückführung von Abgas

Also Published As

Publication number Publication date
EP1355057A2 (fr) 2003-10-22
DE10217626A1 (de) 2003-10-30
EP1355057A3 (fr) 2005-11-16

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