EP2115293B1 - System zur ausrichtung eines rückgeführten verbrennungsgasstroms - Google Patents

System zur ausrichtung eines rückgeführten verbrennungsgasstroms Download PDF

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Publication number
EP2115293B1
EP2115293B1 EP07848086A EP07848086A EP2115293B1 EP 2115293 B1 EP2115293 B1 EP 2115293B1 EP 07848086 A EP07848086 A EP 07848086A EP 07848086 A EP07848086 A EP 07848086A EP 2115293 B1 EP2115293 B1 EP 2115293B1
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EP
European Patent Office
Prior art keywords
orientating
gas
opening
cavity
linking
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Not-in-force
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EP07848086A
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English (en)
French (fr)
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EP2115293A1 (de
Inventor
Bernard Rollet
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Renault SAS
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Renault SAS
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    • 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
    • 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
    • F02M26/22—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
    • F02M26/32—Liquid-cooled heat exchangers

Definitions

  • the present invention relates to a system for directing a flow of combustion gas recirculated in an auxiliary device, for example a chiller, a recirculation circuit of combustion gas.
  • an auxiliary device for example a chiller, a recirculation circuit of combustion gas.
  • Such a system is known of the type comprising a gas inlet opening, a gas outlet opening, two connecting openings adapted to be connected to one another by the cooler, and an inversion system allowing circulating the gas from the inlet opening, before being discharged through the outlet opening, into the cooler in either direction.
  • an orientation system is thus described in the French patent application 05 52 970 of September 30, 2005 .
  • the document DE 101 20 592 A1 discloses a gas orientation system comprising an inlet opening, an outlet opening, two connecting openings adapted to be connected to each other by an auxiliary device, and an inversion system for circulating the gas coming from the inlet opening, before being discharged, through the outlet opening, into the auxiliary device in either direction, as in the preamble of claim 1
  • WO 02/16750 A a bypass valve of an EGR system or the valve is a movable member with two orientation devices.
  • the present invention aims to improve the flow of gases in the orientation system and the impermeability of the orientation system.
  • the system of the aforementioned type is formed by two orientation devices which are isolated from each other, each comprising, on the one hand, a fixed structure which is specific to it and which comprises a hollow cavity. an orientation leading to the common inlet and outlet openings and to a connection opening of its own, and, on the other hand, a movable member of its own, which is arranged in the corresponding orientation cavity, and which is movable between a first connection position in which it communicates the corresponding connection opening with the inlet opening and isolating it from the outlet opening, and a second connection position in which it communicates the corresponding connection opening with the outlet opening and isolates it from the opening of the two orientation devices being arranged relative to one another so that when the movable member of one of the devices is in one of the two connection positions, that of the other device of orientation is in the other of these two positions.
  • connection isolation of the input opening of the first device
  • connection opening associated with the second orientation device communication between the inlet opening and the corresponding connection opening of the second device
  • the cooler in the connection opening associated with the first device of orientation and are evacuated through the exit aperture (communication between the exit aperture and the corresponding connecting aperture of the first device).
  • the present invention therefore effectively cleans all the flue gas circulation lines in the cooler by reversing the coldest end (and therefore the least easily cleaned) of the heat exchanger.
  • a cooling system of combustion gas recirculated in a heat engine comprises a cooler 1 and a gas guidance system 2. More specifically, the present cooler 1 comprises a beam of gas circulation pipes 3 which is disposed inside an enclosure 4 in which circulates a cooling fluid; as a result, the pipe bundle 3 is immersed in the cooling fluid.
  • the chamber 4 comprises a cooling fluid inlet opening 5 and an outlet opening 6. The use of such a cooler 1 makes it possible to reduce the temperature of the gases recirculated before their introduction into the engine.
  • the cooler 1 is in U wherein the two gas circulation ends 8a, 8b are adjacent to each other, the longitudinal ends 8a, 8b being in the same plane.
  • the orientation system 2 comprises a recirculating gas inlet opening 10, an outlet opening 11 of these same gases, and two connecting openings 12a, 12b which are connected to each other by the cooler 1.
  • Each connecting opening 12a, 12b is connected to a gas circulation end 8a, 8b of the cooler 1 which is specific to it.
  • the orientation system 2 also comprises an inversion system 13 which makes it possible to circulate in the cooler 1, in one direction as in the other, the gases coming from the inlet opening 10, before discharging them through the exit opening 11.
  • the inversion system 13 is formed by two orientation devices 14a, 14b which are isolated from each other.
  • Each orientation device 14a, 14b comprises a fixed structure 15a, 15b which is specific to it, and a movable member 16a, 16b which is also specific to it.
  • Each fixed structure 15, 15b has an orientation cavity 17a, 17b which is its own and which opens at the common inlet opening 10, to the common outlet opening 11 and to a connecting opening 12a, 12b which it's clean.
  • Each movable member 16a, 16b is disposed in the corresponding orientation cavity 17a, 17b. It is movable between a first connection position in which it communicates the corresponding connection opening 12a, 12b with the common inlet opening 10 and isolates it from the common outlet opening 11, and a second position of connection in which it communicates the corresponding connection opening 12a, 12b with the common opening output 11 and isolates it from the common input opening 10.
  • the two orientation devices 14a, 14b are arranged relative to each other so that when the movable member 16a, 16b of one of the two orientation devices 14a, 14b is in the one of the two connection positions, the movable member 16b, 16a of the other orientation device 14b, 14a is in the other of these two positions.
  • a movable member 16a, 16b communicates the corresponding connection opening 12a, 12b with the common inlet opening 10 and isolates it from the common outlet opening 11
  • the other movable member 16b, 16a makes communicating the corresponding connection opening 12b, 12a with the common outlet opening 11 and isolating it from the common inlet opening 10.
  • the recirculating gases arrive at the inverting system 13 through the inlet opening 10 and then circulate to meet the movable members 16a, 16b.
  • the gases meeting the movable member 16a, 16b which is in its second connection position, are "trapped” because of the isolation of the inlet opening 10 with respect to the outlet openings 11 and the opening of corresponding link 12a, 12b (orienting device 12b in the background to figures 3 and 7 , and orientation device 12a in the foreground to figures 4 and 8
  • the gases are trapped in a portion of the corresponding orientation cavity 17a, 17b, whereas in the second embodiment, they are trapped before being entered.
  • this regular permutation in the case where the recirculating gases are particularly hot allows to introduce by one or the other of the longitudinal ends 9a, 9b gases whose temperature allows the dissociation of lakes (about 250 ° C) or soot ( about 350 ° C).
  • each orientation cavity 17a, 17b of each orientation device 14a, 14b is delimited by the space that can be occupied by the corresponding movable member 16a, 16b during its displacement.
  • each movable member 16a, 16b is rotatably mounted about an axis of rotation 18a, 18b against which the orientation cavity 17a, 17b has a corresponding symmetry.
  • the two axes of rotation 18a, 18b (and therefore the axes of symmetry) are parallel (more precisely, the two movable members 16a, 16b have the same axis of rotation 18a, 18b.
  • each fixed structure 15a, 15b comprises an inlet cavity 19a, 19b of its own and which connects the orientation cavity 17a, 17b corresponding to the opening common input 10, an outlet cavity 20a, 20b which is specific and which connects the corresponding orientation cavity 17a, 17b to the common outlet opening 11, and a connecting cavity 21a, 21b of its own and which connects the corresponding orientation cavity 17a, 17b to the corresponding connecting opening 12a, 12b.
  • each movable member 16a, 16b is formed by a flap 41a, 41b which extends in a plane passing through the corresponding axis of rotation 18a, 18b.
  • each flap 41a, 41b has a rectangular shape of which one first side 22 perpendicular to the corresponding axis of rotation 18a, 18b, has the same length as the diameter of the corresponding orientation cavity 17a, 17b and a second side 23 perpendicular to the first 22 has the same length as the thickness of the orientation cavity 17a, 17b which is thus cylindrical.
  • each movable member 16a, 16b is formed by a flap 42a, 42b which extends along a main plane 43a, 43b parallel to a central plane 44a, 44b passing through the axis of rotation 18a, Corresponding 18b.
  • each flap 42a, 42b has, in the main plane 43a, 43b, a rectangular shape.
  • a first side 45 of this rectangle of each flap 42a, 42b, perpendicular to the corresponding axis of rotation 18a, 18b, forms a cord on a circle having a diameter identical to that of the corresponding orientation cavity 17a, 17b.
  • a second side 46 perpendicular to the first 45 has the same length as the thickness of the orientation cavity 17a, 17b which is thus cylindrical.
  • the fixed structures 15a, 15b of the two orientation devices 14a, 14b are identical, and they are adjacent to each other. More specifically, the two orientation cavities 17a, 17b are separated from each other by an insulating partition of orientation 24, the two input cavities 19a, 19b are separated from each other by an insulating input partition 25 which extends the insulating partition of orientation 24, the two outlet cavities 20a, 20b are separated from each other by an insulating exit partition 26 which extends the partitions 24 and input insulators 25, and the two connecting cavities 21a, 21b are separated from each other by an insulating connecting partition 27 which the insulating partition 24, input 25 and 26.
  • the various insulating partitions 24,25,26,27 extend perpendicular to the axis of rotation 18a, 18b of the movable members 16a, 16b.
  • the two movable members 16a, 16b are secured to one another by a common shaft 28 which extends along their common axis of rotation 18a, 18b, and the two flaps 16a. , 16b are angularly offset from each other so as to be able to perform the connection position switching.
  • the two movable members 16a, 16b are secured by a disc 48 which is perpendicular to the shaft 28 and which has the same dimensions as the cross section of the orientation cavities 17a, 17b.
  • the first sides 25 form a rope on this disc.
  • each flap 42a, 42b is completed by a cylindrical surface 50 extending on the circular arc corresponding to the string formed by the first side 45.
  • each orientation cavity 17a, 17b is arranged in the following manner: the orifice 29a, 29b opening towards the inlet opening 10 (the orifice 29a, 29b ensuring the connection with the cavity 19a, 19b) is located opposite the orifice 30a, 30b opening towards the outlet opening 10 (the orifice 30a, 3b ensuring the connection with the outlet cavity 20a, 20b) and at 90 ° of the orifice 31a, 31b opening towards the connection opening 12a, 12b corresponding (the orifice 31a, 31b ensuring the connection with the connecting cavity 21a, 21b).
  • the offset angle between the two flaps 41a, 41b is (near) 90 °.
  • the offset angle between the two flaps 42a, 42b is close to 180 ° and the angular sector defined by the rope formed by the first sides 45 is 90 °, therefore, the length of the first sides 45 is equal to the product of the length of the diameter of the disk 48 by half of the square root of 2.
  • the inversion system also makes it possible to short-circuit the chiller 1 when each mobile member 16a, 16b is in an intermediate position halfway.
  • each mobile member 16a, 16b can take two intermediate positions halfway: a direct short-circuit position in which one of the second sides 23 of the flap 41a, 41b is opposite (at the center) of the orifice 29a, 29b opening towards the inlet opening 10 (the other second side 23 lying opposite (in the center) of the orifice 30a, 30b opening towards the outlet opening 11) ( mobile member 14a in the foreground of the figure 5 ), and an indirect short-circuit position in which one of the second sides 23 of the flap 41a, 41b is opposite (in the center) of the orifice 31a, 31b opening towards the corresponding connecting opening 12a, 12b (mobile organ 14b in the background of the figure 5 ).
  • the movable member 16a, 16b of one of the two orientation devices 14a, 14b is in its position of direct short circuit
  • the movable member 16b, 16a of the other orientation device 14b, 14a is in its position of indirect short circuit.
  • the portion of gas flowing in the orientation device 14a, 14b whose movable member is in its direct short-circuit position flows on each side of the flap 41a, 41b and passes directly from the inlet cavity 19a, 19b to the outlet cavity 20a, 20b (majority portion of the gas), and, secondly, the complementary portion of the gas flowing in the other orientation device 14b , 14a is oriented towards the corresponding connecting opening 12b, 12a, bypasses the flap 16b, 16a (via the connecting cavity 21b, 21a) and exits through the outlet cavity 20b, 20a.
  • each movable member 16a, 16b can take two intermediate positions halfway: one in which the second sides 46 of the flap 42a, 42b occupy (entirely) the orifice 31a, 31b opening towards the correspondingly oriented opening 12a, 12b (movable member 16b in the second plane of the figure 9 ), the other in which the second sides 46 of the flap 42a, 42b in a position (entirely) diametrically opposite the orifice 31a, 31b opening towards the corresponding orientation opening 12a, 12b (movable member 16a in the foreground of the figure 9 ).
  • the half-way intermediate position makes it possible to short-circuit the cooler 1 and not to cool the recirculating gases before they are introduced into the engine, which is particularly advantageous during cold engine operation, in particular when it starts.
  • the mode of actuation of the movable members 16a, 16b can be binary, between the two connection positions and the two intermediate positions halfway. In the first embodiment, each of these positions is angularly offset by 45 °, and in the second embodiment, this offset is 90 °.
  • This mode of operation makes it possible, when the engine is cold and the temperature of the gases in recirculation must be maximum, to short-circuit the cooler 1 and, when the engine is sufficiently hot, to cool the gases in recirculation. by circulating them in the cooler 1, in one direction or the other.
  • the operating mode can also be proportional, each movable member 16a, 16b can then take any position between the two connection positions.
  • the proportion of gas recirculating bypassing the cooler 1 depends on the position of the two movable members 16a, 16b: plus the proportion of gas that can pass directly from the inlet cavity 19a, 19b to the outlet cavity 20a, 20b without passing through the cavity of link 21a, 21b is important (the more the movable members 16a, 16b are close to their intermediate position at the respective halfway), the greater the proportion of gas bypassed the chiller 1 is important.
  • the inversion system 13 thus makes it possible to regulate, in this mode of operation, the temperature of the gases recirculated before they are introduced into the engine.
  • one (or both fixed structures) may or may not have an inlet cavity, an outlet cavity, and / or a connecting cavity (the orifices of the orientation cavities opening towards the inlet openings , output and link then opening directly to these openings).
  • the fixed structures have at least one additional cavity (inlet, outlet, connection) to the orientation cavity, in the case, in particular of a separation of these cavities by a partition, the separations could not not be in the extension of each other (the separation being however continuous), for example the different partitions could have different orientations.
  • the two movable members could be physically distinct from one another while being functionally correctly arranged.
  • the insulating partition orientation (disc-shaped) is carried by the common shaft to the two movable members (integrally or partially with in this case the rest of the insulating partition - in the form of crown - carried by the fixed structure).
  • each flap shutters which would extend peripherally and which would be shaped so as to gradually discover the various orifices opening towards the inlet, outlet and connection openings.
  • Such shutters could also be arranged at one or other of these orifices. The shape of these shutters could be triangular arched.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Liquid Crystal (AREA)
  • Combustion Of Fluid Fuel (AREA)

Claims (15)

  1. System (2) zur Ausrichtung von Gas, mit einer Einlassöffnung (10), einer Auslassöffnung (11), zwei Verbindungsöffnungen (12a, 12b), die dazu ausgeführt sind, durch eine zusätzliche Vorrichtung (1) miteinander verbunden zu werden, und einem Umkehrsystem (13), das gestattet, das von der Einlassöffnung (10) kommende Gas vor seiner Evakuierung durch die Auslassöffnung (11) in der zusätzlichen Vorrichtung (1) von einer Richtung zur anderen zu zirkulieren, dadurch gekennzeichnet, dass das Umkehrsystem (13) durch zwei Ausrichtungsvorrichtungen (14a, 14b) gebildet wird, die voneinander isoliert sind und jeweils einerseits eine eigene feste Struktur (15a, 15b) und einen Ausrichtungshohlraum (17a, 17b), der in den gemeinsamen Einlassöffnungen (10) und Auslassöffnungen (11) und in einer eigenen Verbindungsöffnung (12a, 12b) mündet, und andererseits ein eigenes bewegliches Glied (16a, 16b) aufweisen, das in dem entsprechenden Ausrichtungshohlraum (17a, 17b) angeordnet ist und zwischen einer ersten Verbindungsstellung, in der es die entsprechende Verbindungsöffnung (12a, 12b) mit der Einlassöffnung (10) verbindet und die Auslassöffnung davon (11) isoliert, und einer zweiten Verbindungsstellung, in der es die entsprechende Verbindungsöffnung (12a, 12b) mit der Auslassöffnung (11) verbindet und die Einlassöffnung (10) davon isoliert, beweglich ist, wobei die beiden Ausrichtungsvorrichtungen (14a, 14b) bezüglich einander so angeordnet sind, dass, wenn sich das bewegliche Glied (16a, 16b) einer der Vorrichtungen (14a, 14b) in einer der beiden Verbindungsstellungen befindet, das Glied (16b, 16a) der anderen Vorrichtung (14b, 14a) in der anderen dieser beiden Stellungen befindet.
  2. System (2) zur Ausrichtung von Gas nach Anspruch 1, dadurch gekennzeichnet, dass der Ausrichtungshohlraum (17a, 17b) jeder Ausrichtungsvorrichtung (14a, 14b) durch den Raum begrenzt wird, der von dem entsprechenden beweglichen Glied (16a, 16b) während seiner Verschiebung eingenommen werden kann.
  3. System (2) zur Ausrichtung von Gas nach Anspruch 2, dadurch gekennzeichnet, dass das bewegliche Glied (16a, 16b) jeder Ausrichtungsvorrichtung (14a, 14b) um eine Drehachse (18a, 18b), zu der der entsprechende Ausrichtungshohlraum (17a, 17b) symmetrisch ist, drehbar angebracht ist.
  4. System (2) zur Ausrichtung von Gas nach Anspruch 3, dadurch gekennzeichnet, dass die beiden beweglichen Glieder (16a, 16b) durch eine gemeinsame Welle (28), die sich entlang ihrer identischen Drehachse (18a, 18b) erstreckt, fest miteinander verbunden sind.
  5. System (2) zur Ausrichtung von Gas nach Anspruch 4, dadurch gekennzeichnet, dass jedes bewegliche Glied (16a, 16b) durch eine rechtwinklige Klappe (41a, 41b) gebildet wird, wobei jeder Verbindungshohlraum (17a, 17b) die Form eines Zylinders hat, dessen Durchmesser der Länge einer ersten Seite (22) der Klappe (41a, 41b) senkrecht zur entsprechenden Drehachse (18a, 18b) entspricht und dessen Dicke der Länge einer zweiten Seite (23) senkrecht zur ersten (22) entspricht.
  6. System (2) zur Ausrichtung von Gas nach Anspruch 5 in Abhängigkeit von Anspruch 4, dadurch gekennzeichnet, dass die beiden Klappen (16a, 16b) um einen Winkel von ca. 90° winkelförmig voneinander versetzt sind.
  7. System (2) zur Ausrichtung von Gas nach Anspruch 4, dadurch gekennzeichnet, dass jedes bewegliche Glied (16a, 16b) durch eine Klappe (42a, 42b) gebildet wird, die sich entlang einer Hauptebene (43a, 43b) parallel zu einer mittleren Ebene (44a, 44b), die die Drehachse (18a, 18b) durchquert, erstreckt, wobei jeder Verbindungshohlraum (17a, 17b) die Form eines Zylinders hat, dessen Durchmesser der Wurzel der doppelten Länge einer ersten Seite (22) der Klappe (42a, 42b) senkrecht zur Drehachse (18a, 18b) entspricht und dessen Dicke der Länge einer zweiten Seite (23) senkrecht zur ersten Seite (22) entspricht.
  8. System (2) zur Ausrichtung von Gas nach Anspruch 7, in Abhängigkeit von Anspruch 4, dadurch gekennzeichnet, dass die beiden Klappen (16a, 16b) um einen Winkel von ca. 180° winkelförmig voneinander versetzt sind.
  9. System (2) zur Ausrichtung von Gas nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die festen Strukturen (15a, 15b) der beiden Ausrichtungsvorrichtungen (14a, 14b) identisch sind und nebeneinander liegen.
  10. System (2) zur Ausrichtung von Gas nach Anspruch 9, dadurch gekennzeichnet, dass die beiden Ausrichtungshohlräume (17a, 17b) durch eine Ausrichtungsisolierwand (24) voneinander getrennt sind.
  11. System (2) zur Ausrichtung von Gas nach Anspruch 10, in Abhängigkeit von einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, dass sich die Ausrichtungsisolierwand (24) senkrecht zur Drehachse (18a, 18b) der beweglichen Glieder (16a, 16b) erstreckt.
  12. System (2) zur Ausrichtung von Gas nach Anspruch 11, in Abhängigkeit von einem der Ansprüche 4 bis 8, dadurch gekennzeichnet, dass die Ausrichtungsisolierwand (24) von der den beiden beweglichen Gliedern (16a, 16b) gemeinsamen Welle (28) getragen wird.
  13. System (2) zur Ausrichtung von Gas nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass jede Ausrichtungsvorrichtung (14a, 14b) einen eigenen Einlasshohlraum (19a, 19b), Auslasshohlraum (20a, 20b) und Verbindungshohlraum (21a, 21b) umfasst, die den Ausrichtungshohlraum (17a, 17b) mit der gemeinsamen Einlassöffnung (10), der gemeinsamen Auslassöffnung (11) bzw. der entsprechenden Verbindungsöffnung (12a, 12b) verbinden.
  14. System (2) zur Ausrichtung von Gas nach Anspruch 13, in Abhängigkeit von einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass die beiden Einlasshohlräume (19a, 19b), die beiden Auslasshohlräume (20a, 20b) und die beiden Verbindungshohlräume (21a, 21b) durch eine Einlassisolierwand (25), eine Auslassisolierwand (26) bzw. eine Verbindungsisolierwand (27) voneinander getrennt sind.
  15. System (2) zur Ausrichtung von Gas nach Anspruch 14, in Abhängigkeit von einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass die Einlassisolierwand (25), die Auslassisolierwand (26) und die Verbindungsisolierwand (27) die Ausrichtungsisolierwand (24) verlängern.
EP07848086A 2007-01-19 2007-12-12 System zur ausrichtung eines rückgeführten verbrennungsgasstroms Not-in-force EP2115293B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0700383A FR2911638B1 (fr) 2007-01-19 2007-01-19 Systeme d'orientation d'un flux de gaz de combustion en re-circulation
PCT/EP2007/063839 WO2008101560A1 (fr) 2007-01-19 2007-12-12 Systeme d'orientation d'un flux de gaz de combustion en re-circulation

Publications (2)

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EP2115293A1 EP2115293A1 (de) 2009-11-11
EP2115293B1 true EP2115293B1 (de) 2010-10-27

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EP (1) EP2115293B1 (de)
AT (1) ATE486210T1 (de)
DE (1) DE602007010186D1 (de)
FR (1) FR2911638B1 (de)
WO (1) WO2008101560A1 (de)

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DE102007038882A1 (de) 2007-08-17 2009-02-19 Pierburg Gmbh Abgaskühlvorrichtung für eine Verbrennungskraftmaschine
DE102010006038B4 (de) * 2010-01-27 2013-10-24 Pierburg Gmbh Vorrichtung zur Regelung eines Fluidstroms
FR2979124B1 (fr) * 2011-08-18 2015-10-09 Wevista Echangeur egr a vanne integree
CN106338821B (zh) * 2014-11-28 2018-10-26 歌尔科技有限公司 一种微显示目镜和头戴设备

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Publication number Priority date Publication date Assignee Title
FR2808302B1 (fr) * 2000-04-28 2005-09-23 Toyota Motor Co Ltd Epurateur de gaz d'echappement pour moteur a combustion interne et procede pour purifier le gaz d'echappement
US6378509B1 (en) * 2000-06-13 2002-04-30 Caterpillar Inc. Exhaust gas recirculation system having multifunction valve
DE10041579A1 (de) * 2000-08-24 2002-03-07 Siemens Automotive Corp Lp Ventilanordnung mit Doppelklappe und Wärmebrücke für ein Abgasrückführungssystem und Verfahren zu deren Betrieb
DE10222919B4 (de) * 2002-05-24 2007-12-20 Man Nutzfahrzeuge Ag Zweistufig aufgeladene Brennkraftmaschine

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FR2911638A1 (fr) 2008-07-25
WO2008101560A1 (fr) 2008-08-28
ATE486210T1 (de) 2010-11-15
FR2911638B1 (fr) 2009-03-13
EP2115293A1 (de) 2009-11-11
DE602007010186D1 (de) 2010-12-09

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