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EP1927746B1 - Dispositif de contrôle de l'échappement d'un moteur à combustion interne - Google Patents

Dispositif de contrôle de l'échappement d'un moteur à combustion interne Download PDF

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Publication number
EP1927746B1
EP1927746B1 EP07117531.9A EP07117531A EP1927746B1 EP 1927746 B1 EP1927746 B1 EP 1927746B1 EP 07117531 A EP07117531 A EP 07117531A EP 1927746 B1 EP1927746 B1 EP 1927746B1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
slide
duct
gas recirculation
internal combustion
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.)
Active
Application number
EP07117531.9A
Other languages
German (de)
English (en)
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EP1927746A1 (fr
Inventor
Heinrich Dismon
Andreas Köster
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
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Filing date
Publication date
Application filed by Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP1927746A1 publication Critical patent/EP1927746A1/fr
Application granted granted Critical
Publication of EP1927746B1 publication Critical patent/EP1927746B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/06—Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
    • F02M26/10—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or 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
    • F02M26/14—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
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/59—Systems for actuating EGR valves using positive pressure actuators; Check valves therefor
    • F02M26/61—Systems for actuating EGR valves using positive pressure actuators; Check valves therefor in response to exhaust pressure
    • F02M26/615—Systems for actuating EGR valves using positive pressure actuators; Check valves therefor in response to exhaust pressure the exhaust back pressure
    • 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
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/36—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an exhaust flap
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/14—Exhaust treating devices having provisions not otherwise provided for for modifying or adapting flow area or back-pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F02D9/104—Shaping of the flow path in the vicinity of the flap, e.g. having inserts in the housing
    • 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 an exhaust gas control device for an internal combustion engine in a low-pressure region of an exhaust system of a turbocharged internal combustion engine with an exhaust passage and an exhaust gas recirculation channel, which branches off from the exhaust passage, wherein an exhaust valve controls an exhaust back pressure in the exhaust passage and an exhaust gas recirculation valve controls an exhaust gas mass flow through the exhaust gas recirculation passage and the exhaust valve and the exhaust gas recirculation valve via a control device mechanically coupled depending on each other can be actuated.
  • Low pressure exhaust gas recirculations are known.
  • Low pressure range means that the diversion to the exhaust gas recirculation in the exhaust gas system is located behind the turbine of an exhaust gas turbocharger.
  • an exhaust gas recirculation line is preferably branched off behind the dreaded particle filter. This means that there is soot-free exhaust gas in this area of the exhaust line.
  • the pressure drop when returning to the compressor of the turbocharger is very low, so that a clear limitation of the possible exhaust gas recirculation quantities would be given.
  • an exhaust flap is placed behind the branch of the exhaust gas recirculation line in order to increase the back pressure and thus the possible exhaust gas recirculation rates.
  • a regulation of the exhaust gas recirculation amount is thus dependent on both the exhaust valve and the exhaust gas recirculation valve.
  • the clutch is designed such that the two flaps are opened or closed in opposite directions, so that when fully open exhaust gas recirculation valve the highest possible back pressure created by the closed exhaust flap and thus the highest possible amount of exhaust gas can be returned to the intake manifold or before the compressor.
  • such an embodiment has the disadvantage that, in particular in phases of high exhaust gas temperatures, ie for example during regeneration of a diesel particulate filter, the exhaust gas recirculation flap arranged in the main flow is exposed to a very high thermal load. This can, for example, lead to a delay of the individual components to one another, so that a complete closure of the exhaust gas recirculation line is only very difficult to implement.
  • the operating forces to be expended by the position of the exhaust gas recirculation valve in the main exhaust gas flow are very high.
  • Out JP 59 119054 A is known an exhaust gas control device with an exhaust valve and designed as a slide exhaust gas recirculation valve.
  • the exhaust flap and the slide are mechanically not coupled with each other, but can be opened and closed independently.
  • a compact design is desirable.
  • an exhaust gas control device with the features of the main claim.
  • the exhaust gas recirculation valve is designed as a slide which is coupled to a shaft on which the exhaust valve is mounted, and the slide is arranged in the exhaust gas recirculation passage, the reliability of such an exhaust gas control device is significantly increased, since such a slide insensitive to thermal loads is, so that even after high thermal load accurate exhaust gas quantity control is guaranteed.
  • the required actuating forces of the adjusting device are significantly reduced.
  • the slide in a form-fitting manner on the end of the exhaust flap shaft facing away from the adjusting device. Due to the substantially vertical branching of the exhaust gas recirculation passage from the exhaust gas passage, it is achieved that, in the case of an opened exhaust gas flap, there is only a slight throttling effect, since the serving as exhaust gas recirculation valve slide is not arranged in the exhaust stream as a flow obstacle. Furthermore, as a result, the thermal load on the slider is significantly reduced, so that in particular in uncontrolled regeneration of the diesel particulate filter impairment of the operability of the exhaust gas recirculation valve is excluded because it is located outside the main exhaust stream and thus thermally decoupled from this.
  • the exhaust passage is formed in a housing having a first perpendicular to the exhaust passage extending bore for the shaft and a second arranged in the flow direction of the exhaust gas before the first passage bore one-sided passage, which serves as a first portion of the exhaust gas recirculation passage, wherein the End of this first section is closed by the slide.
  • a slide housing is connected to the first housing and serves as a cover element for a space located on an outer side of the housing, which is arranged at the level of the passage and the flow direction behind the passage passage, wherein in the slide housing with the Slider coupled end of the shaft and the slide are arranged and on the slider housing, a second portion of the exhaust gas recirculation passage is formed, which adjoins the first portion of the opposite side of the slide to the first portion of the exhaust gas recirculation passage.
  • a sealing element is arranged between the slide and the second section of the exhaust gas recirculation channel.
  • the sealing element is loaded by a spring against an outside of the exhaust gas recirculation channel arranged surface of the slide, so that even with thermal displacement or expansion of one of the components, the tightness is ensured to prevent leaks. Furthermore, in such an embodiment, in particular because of the occurring thermal load can be manufactured with very wide tolerances, so that manufacturing costs can be reduced.
  • the slide has a passage opening for controlling the amount of recirculated exhaust gas, whereby the shape of the opening can be adapted to the following exhaust passage.
  • this passage opening is formed contoured, so that there is the possibility to optimally adapt the exhaust gas recirculation characteristic over the slide contour to the requirements of the respective internal combustion engine, thus releasing a defined small gap, for example, with only small desired Abgas Wegfabmenge, which in particular at small angles of rotation of the slide not too large Volume flow change follows.
  • an exhaust gas guide in the exhaust passage, which is arranged in the flow direction of the exhaust gas at least partially in front of the exhaust valve and the exhaust pipe around at least partially around the exhaust flap in the open state.
  • Such exhaust control devices have a high reliability with respect to the control of the desired amounts of exhaust gas, whereby a long service life is achieved.
  • the required actuating forces are very low compared to known designs by this almost pressure balanced system. Incidentally, this creates a very compactly constructed coupled exhaust gas control device with a low number of components.
  • FIG. 1 consists of a housing 1, in which an exhaust passage 2 is formed, in which an exhaust valve 3, which is mounted on a shaft 4, is arranged.
  • the shaft 4 is mounted in the housing 1 via bearings 5, 6 in a passage bore 7.
  • a first end 8 of the shaft 4 is positively connected to a stub shaft 9, which forms a drive shaft of an adjusting device 10 which is fixed to the housing 1.
  • this is Actuator 10 as an electric actuator with a connector 25, wherein also a pneumatic or hydraulic actuator could be used.
  • the stub shaft 9 is surrounded by a radial shaft sealing ring 11 in the through-bore 7 on this side of the exhaust duct 2.
  • An actuator 12 opposite end 12 of the shaft 4 opens behind the passage bore 7 in a space 13 which is closed by a cover member 14.
  • This cover member 14 is attached to the housing 1 and closes the space 13 largely tight.
  • a coupling member 15 is arranged at the end of the shaft 4 form-fitting, which is made in one piece with a slider 16. Equally, it is also conceivable that coupling member 15 to be firmly connected to the slider 16 after manufacture.
  • the slider 16 serves as an exhaust gas recirculation valve and is disposed in an exhaust gas recirculation passage 17 for controlling a recirculated exhaust gas amount.
  • This exhaust gas recirculation passage 17 leads, for example in a known manner before a compressor of a turbocharger in the low pressure region of a turbocharged internal combustion engine.
  • the exhaust gas recirculation passage 17 branches off from the exhaust gas duct 2 at right angles, for which purpose a second passage 18 is arranged in the housing 1 in the flow direction of the exhaust gas flow, the passage 18 of the housing 1 being in this way the first section 19 of the exhaust gas recirculation passage 17 serves.
  • the passage bore 7 and the second passage 18 of the housing 1 are preferably arranged axially one behind the other here.
  • the slide 16 serving as an exhaust gas recirculation valve now abuts.
  • the slider 16 is loaded in this area by a sealing element 21 via a spring 22 against the first portion 19 of the exhaust gas recirculation passage 7.
  • a second section 23 of the exhaust gas recirculation passage 17 adjoins the sealing element 21, which is made in one piece with the cover element 14 in this preferred embodiment.
  • This cover element 14 thus serves simultaneously as a slide housing 24 and as a second stop for the spring 22nd
  • the sealing element 21 has a radially extending extent, which extends beyond the outer diameter of the second section 23 of the exhaust gas recirculation channel 17, so that the spring element in this region 26 can be applied against the sealing element 21.
  • an axially extending portion 27 of the sealing element 21 is arranged, whose outer diameter substantially corresponds to the inner diameter of the second portion 23 of the exhaust gas recirculation passage 17. If now the sealing element is pressed further by the spring 22 against the slide 16, a possible gap to the fixed second portion 23 of the exhaust gas recirculation passage 17 through this axial portion 27 of the sealing element 21 is closed.
  • the slider 16 is shown in a position in which it releases the entire exhaust gas recirculation passage 17, while the exhaust valve 3 is in a position in which the exhaust passage 2 is closed as much as possible.
  • a contoured passage opening 28 is formed in the slide 16, which in particular in FIG. 2 can be seen.
  • two different contours 29 are shown lying one above the other, of which either one is realized.
  • the opening of the underlying second portion 23 of the exhaust gas recirculation passage 17 is additionally shown, so that upon rotation of the slider 16 in the direction of the arrow to the angle ⁇ initially a relatively narrow portion of the contour 29 projects into the exhaust gas recirculation passage 17.
  • This has the consequence that even low exhaust gas recirculation rates can be measured relatively accurately, since usually otherwise small changes in rotational angle in areas of low coverage have a relatively large change in volume flow result. This is reliably avoided here by the contoured design.
  • connection of the shaft 4 to the coupling member 15 and to the slider 16 is achieved by a positive connection in the form of a corrugation 30 and a corresponding corrugation of the shaft 4 or a hub pressed thereon.
  • Other forms of connection are of course also conceivable.
  • an exhaust gas guide element 31 is arranged in the exhaust gas channel 2. Parts of this exhaust gas guide 31 are also in FIG. 1 seen.
  • the shape of this Abgasleitiatas 31 is selected so that the exhaust valve 3 is in the channel 2 releasing state with the exhaust gas flow directed front wing 33 in a pocket 32 of the Abgasleitiatas 31.
  • In the inflow region 34 of this Abgasleitelement 31 is preferably formed approximately wedge-shaped or at least aerodynamically favorable, so that the hot exhaust gas is as possible subjected to small flow obstacles and thus the pressure loss in the open state remains as low as possible.
  • This Anström Society 34 of Abgasleitides 31 extends substantially annularly half round the exhaust flap 3.
  • this annular Anström Scheme 34 via an approximately semicircular second region 35th and an adjoining web 36 are additionally connected to the housing 1.
  • a one-piece production with the housing 1 of the exhaust duct 2 is conceivable for this area.
  • the adjusting device 10 is now actuated, to increase the return rate of both the exhaust gas recirculation passage 17 is opened by turning the slider 16, and at the same time to increase the back pressure by the coupled operation, the exhaust valve 3 is rotated in a closing the channel 2 state becomes. At the desired lower exhaust gas stirring rate takes place in accordance with a reverse rotation.
  • both the bearings 5, 6 and the sealing elements 11, 21 used can be used even at high thermal stress.
  • ceramic or graphite gaskets are commonly used.
  • Such a device is very reliable even at high thermal stress and has a long service life, the production and assembly to minimize the effort possible are kept simple. It can be generated as far as possible any exhaust gas recirculation characteristics and thermal loads on the functionally relevant components are reduced or compensated.

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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)

Claims (8)

  1. Dispositif de contrôle de l'échappement d'un moteur à combustion interne dans une région à basse pression d'un système d'échappement d'un moteur à combustion interne turbocompressé, comprenant un conduit d'échappement (2) et un conduit de recirculation d'échappement (17) branché dudit conduit d'échappement (2),
    un clapet d'échappement (3) contrôlant la contrepression d'échappement dans ledit conduit d'échappement (2), et une soupape de recirculation d'échappement contrôle le flux massique d'échappement à travers ledit conduit de recirculation d'échappement (17), et
    ledit clapet d'échappement (3) et ladite soupape de recirculation d'échappement peuvent être actionnés de manière dépendent l'un de l'autre, étant couplés mécaniquement,
    caractérisé en ce que
    la soupape de recirculation d'échappement est réalisée sous forme d'un coulisseau (16) couplé avec un arbre (4) sur lequel est monté ledit clapet d'échappement (3),
    ledit coulisseau (16) est solidaire en rotation de l'arbre (4), sur lequel est monté ledit coulisseau (16), et est disposé dans ledit conduit de recirculation d'échappement (17),
    ledit conduit de recirculation d'échappement (17) étant branché dudit conduit d'échappement (2) essentiellement perpendiculairement.
  2. Dispositif de contrôle de l'échappement d'un moteur à combustion interne selon la revendication 1, caractérisé en ce que ledit conduit d'échappement (2) est formé dans un carter (1) comportant un premier alésage de passage (7) pour ledit arbre (4), s'étendant perpendiculairement par rapport au conduit d'échappement (2), et une passage (18) sur un côté disposée en amont dudit premier alésage de passage (7), vu dans la direction d'écoulement de l'échappement, ladite passage servant comme première section (19) dudit conduit de recirculation d'échappement (17), l'extrémité (20) de cette première section (19) pouvant être fermée par ledit coulisseau (16).
  3. Dispositif de contrôle de l'échappement d'un moteur à combustion interne selon la revendication 2, caractérisé en ce qu'un carter de coulisseau (24) est relié au premier carter (1) et sert comme élément de couvercle (14) pour un espace (13) situé à l'extérieure du carter (1), l'espace étant disposé au niveau de ladite passage (18) et dudit alésage de passage (7), disposé en aval de ladite passage (18), vu dans la direction d'écoulement, une extrémité (12) de l'arbre (4), couplée avec le coulisseau (16), et le coulisseau (16) étant disposés dans ledit carter de coulisseau (24), et une deuxième section (23) dudit conduit de recirculation d'échappement (17) étant formée sur ledit carter de coulisseau (24), la section se raccordant à la première section dudit conduit de recirculation d'échappement (17) sur le côté du coulisseau (16) opposé à la première section (19).
  4. Dispositif de contrôle de l'échappement d'un moteur à combustion interne selon la revendication 3, caractérisé en ce qu'un élément d'étanchéité (21) est disposé entre ledit coulisseau (16) et ladite deuxième section (23) dudit conduit de recirculation d'échappement (17).
  5. Dispositif de contrôle de l'échappement d'un moteur à combustion interne selon la revendication 4, caractérisé en ce que ledit élément d'étanchéité (21) est pressé par un ressort (22) contre une surface dudit coulisseau (16) située hors dudit conduit de recirculation d'échappement (17).
  6. Dispositif de contrôle de l'échappement d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit coulisseau (16) comporte une ouverture de passage (28) pour contrôler les quantités d'échappement recirculées.
  7. Dispositif de contrôle de l'échappement d'un moteur à combustion interne selon la revendication 4, caractérisé en ce que ladite ouverture de passage (28) est réalisée en forme d'un contour (29).
  8. Dispositif de contrôle de l'échappement d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un élément de guidage d'échappement (31) est disposé dans ledit conduit d'échappement (2), élément qui est disposé au moins partiellement en amont du clapet d'échappement (3), vu dans la direction d'écoulement de l'échappement, et qui directe l'échappement au moins partiellement autour dudit clapet d'échappement (3) en état ouvert.
EP07117531.9A 2006-11-21 2007-09-28 Dispositif de contrôle de l'échappement d'un moteur à combustion interne Active EP1927746B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006055226A DE102006055226A1 (de) 2006-11-21 2006-11-21 Abgassteuereinrichtung für eine Verbrennungskraftmaschine

Publications (2)

Publication Number Publication Date
EP1927746A1 EP1927746A1 (fr) 2008-06-04
EP1927746B1 true EP1927746B1 (fr) 2015-03-18

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009006013A1 (de) 2009-01-23 2010-08-05 Pierburg Gmbh Abgasklappenvorrichtung und Abgaswärmerückgewinnungssystem einer Verbrennungskraftmaschine
KR101338272B1 (ko) * 2013-10-23 2013-12-09 캄텍주식회사 차량용 egr 밸브
JP7065000B2 (ja) * 2018-09-18 2022-05-11 日立Astemo株式会社 吸気装置

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DE2232705A1 (de) * 1972-07-04 1974-01-24 Daimler Benz Ag Vorrichtung zur zufuehrung von abgas zum brennstoff-luft-gemisch einer brennkraftmaschine
DE2241935C3 (de) * 1972-08-25 1981-07-16 Robert Bosch Gmbh, 7000 Stuttgart Anlage zur Abgasentgiftung
JPS59119054A (ja) 1982-12-24 1984-07-10 Suzuki Motor Co Ltd Ｅｇｒ制御装置
DE4111240C1 (fr) * 1991-04-08 1992-06-04 Fa. Carl Freudenberg, 6940 Weinheim, De
DE4227739C2 (de) * 1992-08-21 1998-04-30 Bayerische Motoren Werke Ag Zumischventil, insbesondere Abgasrückführ-Ventil einer Brennkraftmaschine
US5740785A (en) 1997-06-09 1998-04-21 Southwest Research Institute Two way-high pressure loop, exhaust gas recirculation valve
DE102004055846B4 (de) 2004-11-19 2016-12-15 Bayerische Motoren Werke Aktiengesellschaft Fahrzeug mit Turbo-Dieselmotor und Abgasrückführung
DE102005002266A1 (de) * 2005-01-18 2006-07-20 Bayerische Motoren Werke Ag Abgasrückführsystem für eine Brennkraftmaschine

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EP1927746A1 (fr) 2008-06-04

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