EP2055921B1 - Ansaugluft-Einlassmodul, Ansaugluft-Einlasssystem, Ansaugluft-Einlasstrakt, Abgasrückführsystem, Verbrennungsmotor - Google Patents

Ansaugluft-Einlassmodul, Ansaugluft-Einlasssystem, Ansaugluft-Einlasstrakt, Abgasrückführsystem, Verbrennungsmotor Download PDF

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Publication number
EP2055921B1
EP2055921B1 EP07021265A EP07021265A EP2055921B1 EP 2055921 B1 EP2055921 B1 EP 2055921B1 EP 07021265 A EP07021265 A EP 07021265A EP 07021265 A EP07021265 A EP 07021265A EP 2055921 B1 EP2055921 B1 EP 2055921B1
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EP
European Patent Office
Prior art keywords
charge fluid
housing portion
fluid intake
exhaust gas
intake module
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
EP07021265A
Other languages
English (en)
French (fr)
Other versions
EP2055921A1 (de
Inventor
Fabrice Frechard
Sylvain Demeulemeester
Renè Baclet
Philippe Gauquie
Bernard Nuttin
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
Mecaplast Group
Original Assignee
Behr GmbH and Co KG
Mecaplast Group
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 Behr GmbH and Co KG, Mecaplast Group filed Critical Behr GmbH and Co KG
Priority to AT07021265T priority Critical patent/ATE547614T1/de
Priority to ES07021265T priority patent/ES2385013T3/es
Priority to EP07021265A priority patent/EP2055921B1/de
Publication of EP2055921A1 publication Critical patent/EP2055921A1/de
Application granted granted Critical
Publication of EP2055921B1 publication Critical patent/EP2055921B1/de
Active 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream 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
    • F02M26/04—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
    • F02M26/13—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
    • 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 invention concerns a charge fluid intake module of the preamble part of claim 1, for an internal combustion engine having a housing which forms a flow path for a gaseous charge fluid. Furthermore, the invention concerns a charge fluid intake tract, an exhaust gas recirculation system and an internal combustion engine.
  • a charge fluid intake module of the kind mentioned hereinbefore serves to deliver the gaseous charge fluids suitable for the combustion process in the internal combustion engine, in particular in the form of charge air or charge air/gas mixture, if occasion arises also an exhaust gas or mixtures thereof.
  • a gaseous charge fluid can appropriately be compressed and cooled.
  • a cooling device for an exhaust gas/air mixture flowing in the inlet manifold in the inlet manifold can be arranged a cooling device for an exhaust gas/air mixture flowing in the inlet manifold, as described in DE 10 2004 025 187 B3 .
  • the addition of an exhaust gas to charge air here takes place through various openings in a pipe system which is divided into a gas-conducting pipe and a coolant-conducting pipe.
  • An exhaust gas-conducting device leads into the inlet manifold in front of the cooling device in the direction of flow.
  • An integrated charge fluid intake module of this kind which is designed to cool an exhaust gas/air mixture can be designed only to a limited extent with a view to cooling especially the exhaust gas.
  • Exhaust gas recirculation in which the exhaust gas is cooled by means of a separate heat exchanger for the exhaust gas in the form of an exhaust gas recirculation cooler is described in US 2005/0034713 A1 .
  • exhaust gas recirculation of this kind depending on the engine operating point, a portion of the exhaust gas is extracted behind the engine, cooled in a heat exchanger in the form of an exhaust gas cooler and then added to the intake air.
  • a heat exchanger designed as a separate component in the form of an exhaust gas cooler for cooling an exhaust gas is provided, in addition to a charge fluid intake module, as a separate unit which is connected to the charge fluid intake module in fluid-conveying relationship only via an interface, for example in the form of a pipe or flange.
  • a disadvantage here is that a charge fluid intake module and a heat exchanger are normally arranged comparatively far away from each other. This results in an elaborate connection which is associated with corresponding costs and which can also be susceptible to breakdown.
  • a charge fluid intake tract in which a heat exchanger is integrated in the charge fluid intake tract of an internal combustion engine, namely in the inlet manifold, comprising individual intake pipes for the gaseous charge fluid.
  • the charge fluid intake tract comprises a plastic body which comprises an air inlet chamber, an air inlet and one or more individual intake pipes which communicate with the head of an internal combustion engine.
  • the heat exchanger is formed in a further chamber which at least partially consists of plastic material and which forms a first opening to the outside and forms a second opening which communicates with the inlet chamber, and comprises a third opening which communicates with a pipe which provides cooling fluid and a fourth opening which communicates with a pipe which discharges the cooling fluid.
  • EP 1 479 902 A1 discloses a charge fluid intake module as mentioned in the introduction.
  • the module is formed as a charge fluid intake tract for an internal combustion engine, the intake tract having individual intake pipes and an exhaust gas recirculation pipe within one housing.
  • the exhaust gas recirculation pipe is configured to receive in an inner space a cooling part of a heat exchanger.
  • a two part heat exchanger assembly is build consisting of a first part in form of the cooling part of the heat exchanger and a second part in form of a cover; thus to close the exhaust gas recirculation pipe.
  • a further cooling channel is provided to isolate the exhaust gas recirculation pipe from the charge air intake pipe. Cooling fluid connections to the cover are arranged such that cooling fluid can flow into the further cooling channel to isolate the exhaust gas recirculation pipe.
  • the object of which is to provide an apparatus which allows space-saving intake of charge fluid with comparatively reduced and flexible elaborateness of the connection, and yet cooling specially designed for an exhaust gas within the framework of exhaust gas recirculation.
  • the object is achieved by the invention with a charge fluid intake module of the kind mentioned hereinbefore, in which according to the invention as claimed in claim 1 the housing comprises a first housing portion and a second housing portion which are integral to each other, the second housing portion being designed to receive a heat exchanger for an exhaust gas, and the first housing portion comprising a connection piece for the gaseous charge fluid being integral to the first housing portion, and the first housing portion comprising a connection piece for the exhaust gas being integral to the first housing portion.
  • the connection piece for the charge fluid is designed for connection to an inlet manifold.
  • the charge fluid intake module is further characterized as defined by the features of the characterizing part of claim 1.
  • the invention starts from the consideration that an arrangement of an exhaust gas heat exchanger and a charge fluid intake module comparatively close together, which is equally designed for exhaust gas cooling, is advantageously possible due to the fact that a heat exchanger for the exhaust gas can be arranged in the housing and also according to the concept of the invention the housing is constructed substantially in one piece.
  • the invention recognised that a substantially improved, i.e. in particular reduced and more flexible, connection technique between a heat exchanger for the exhaust gas and a charge fluid intake module can be achieved by an integral housing for the two units, i.e. by a housing which is constructed in one piece, specifically formed in one piece as a whole.
  • the concept of the invention nevertheless leaves open the option of providing an exhaust gas recirculation pipe to the charge fluid intake module between the heat exchanger for the exhaust gas and the charge fluid intake module, separately and according to the intended purpose.
  • the concept of the invention ensures that, due to a one-piece housing which firstly is capable of receiving at least one heat exchanger and secondly forms only part of a charge fluid intake tract, in particular a charge fluid intake connection piece, there is provided a charge fluid intake module in which a more extensive connection technique for the relative arrangement of the heat exchanger and part of the charge fluid intake tract can in practice be eliminated.
  • a housing is provided which, due to a one-piece construction, achieves the relative arrangement of a heat exchanger and only part of the charge fluid intake tract, in particular an intake connection piece.
  • the housing comprises a first housing portion and a second housing portion which are integrally connected to each other, the first housing portion comprising a connection piece for the gaseous charge fluid connected integrally to the first housing portion, and the first housing portion comprising a connection piece for the exhaust gas connected integrally to the first housing portion, the connection piece for the charge fluid being designed for connection to an inlet manifold.
  • An inlet manifold preferably forms part of a charge fluid intake tract.
  • connection piece for the gaseous charge fluid is formed as a comparatively short pipe connection piece which is designed on the one hand for receiving charge air and on the other hand for discharging the gaseous charge fluid, preferably extends along an axial extent.
  • the concept of the invention provides that the second housing portion is designed to receive a heat exchanger for an exhaust gas.
  • the second housing portion serves to receive a hot part of a heat exchanger, i.e. in particular a pipe assembly for a hot exhaust gas.
  • the pipe assembly can be accommodated in the second housing portion, the second housing portion in turn being designed for flow of cooling fluid.
  • the second housing portion can be formed from a material which is less heat-resistant compared with the hot part of the heat exchanger, for example a synthetic or plastic or aluminium material or combinations thereof.
  • on the second housing portion are arranged one or more cooling fluid inlets or outlets.
  • a module for flexible connection to a charge fluid intake tract and flexible connection to a charge air and/or exhaust gas pipe system which integrates a receptacle for a heat exchanger and only part of a charge fluid intake tract, namely in front of a branch to individual intake pipes, and hence the corresponding connection technology, as a one-piece component.
  • the module assists at least both exhaust gas cooling and exhaust gas recirculation, and yet ensures that a heat exchanger adjusted for exhaust gas recirculation and the special requirements thereof can be introduced into the housing.
  • the invention also leads to a system as claimed in claim 20, the system consisting of a charge fluid intake module according to the concept of the invention and a heat exchanger.
  • the invention also leads to a charge fluid intake tract as claimed in claim 21, having with the charge fluid intake module connected according to the concept of the invention.
  • the charge fluid intake tract and/or the charge fluid intake module additionally comprises
  • the invention also leads to an exhaust gas recirculation system as claimed in claim 22, in particular a high-pressure exhaust gas recirculation system, having a charge fluid intake module of the kind mentioned.
  • high-pressure exhaust gas recirculation takes place between pipe sections which are under a comparatively high pressure, for example from an exhaust gas recirculation pipe which starts in front of an exhaust turbine on the engine output side and ends behind a compressor on the engine input side.
  • low-pressure exhaust gas recirculation takes place by exhaust gas recirculation between pipe sections which are under a comparatively low pressure, for example from an exhaust gas recirculation pipe which starts behind an exhaust turbine on the engine output side and ends in front of a compressor on the engine input side.
  • the invention leads to an internal combustion engine as claimed in claim 23 having a charge fluid intake module according to the concept of the invention prove to be advantageous with an internal combustion engine in the form of a diesel engine, but also the concept of the invention can be used with an internal combustion engine in the form of an Otto engine.
  • a bypass device for the heat exchanger can be arranged in and/or on the housing.
  • the bypass device or at least part of it can, depending on requirements, be formed in one piece with the housing or mounted on it.
  • the bypass device comprises a bypass valve and/or a bypass channel associated with the bypass valve.
  • the bypass device is preferably arranged on the input side of the heat exchanger.
  • the bypass device can also be formed as part of the heat exchanger.
  • an exhaust gas recirculation valve is arranged in and/or on the housing.
  • the exhaust gas recirculation valve is formed, preferably integrally, with the housing or can be otherwise mounted on the housing.
  • the charge fluid intake module can be structurally adapted to the circumstances in the engine compartment as required with the one-piece housing which provides the flow path for the gaseous charge fluid and receives the heat exchanger.
  • the housing comprises according to the concept of the invention a first housing portion and a second housing portion which are integrally connected to each other, i.e. specifically, the two housing portions are formed together as a whole in one piece.
  • the first housing portion serves to provide a charge fluid intake function and the second housing portion is designed to provide the function of exhaust gas cooling, the two housing portions nevertheless being connected to each other as parts of a module formed in one piece.
  • the first housing portion and the second housing portion are arranged one under the other in the fitted position and are connected integrally to each other.
  • the first housing portion comprises at least one intake connection piece for the gaseous charge fluid.
  • the intake connection piece is connected integrally to the first housing portion, i.e. specifically formed together with a first housing portion in one piece as a whole.
  • the first housing portion comprises a connection piece for the exhaust gas.
  • the exhaust gas connection piece is connected integrally to the first housing portion, i.e. specifically formed together with the first housing portion as a whole.
  • the function of mixing exhaust gas and charge air is integrated in the charge fluid intake module in addition.
  • a connection piece for the gaseous charge fluid and a connection piece for the exhaust gas are formed integrally in the second housing portion and connected to each other in communicating relationship, in particular realised in the form of a T-piece. It turned out that, as a result, particularly preferred mixing of exhaust gas and charge air can already be achieved in the first housing portion.
  • an exhaust gas recirculation pipe connects a first housing portion and a second housing portion in flow-conducting relationship and is constructed as a part, preferably as a one-piece part, on or with the housing.
  • An exhaust gas recirculation pipe in a variant can also be mounted as a separate part on the housing.
  • the second housing portion is designed to receive a heat exchanger for the exhaust gas.
  • the shape of the second housing portion can be adapted to the circumstances of the heat exchanger. It proved to be particularly advantageous that the second housing portion forms a cup-shaped receptacle for the heat exchanger. This has advantages in assembly of the heat exchanger and the housing.
  • the housing is designed to receive a heat exchanger in a U-flow construction.
  • the heat exchanger can advantageously be held on one side on an end flange of the second housing portion.
  • it proved to be advantageous that the heat exchanger is held on the other side in a centring hole of the second housing portion.
  • the centring hole is provided with a damping and/or insulating element which is capable of protecting the heat exchanger against vibrations, for example via a centring tip thereof.
  • the charge fluid intake module in particular at least one outer side of the second housing portion, is provided with cooling and/or reinforcing ribs.
  • the one-piece housing can very generally be provided with ribs for reinforcement thereof.
  • a reinforcing rib can additionally be designed as a cooling rib.
  • first housing portion and the second housing portion can be oriented in any fashion relative to each other. It proved to be particularly advantageous that a longitudinal extent of the first housing portion is oriented transversely to a longitudinal extent of the second housing portion. As a result in a particularly preferred manner a flow-conducting connection can be provided between the first housing portion and the second housing portion, which furthermore can be accommodated in an engine compartment in a space-saving manner.
  • the first housing portion comprises a flange which serves as a connecting portion between the first housing portion and the second housing portion.
  • the flange is designed as a flange of the intake connection piece. This has the advantage that a flange provided on the one-piece housing can additionally be used as a connecting portion between the first housing portion and the second housing portion.
  • the flange has a substantially triangular, planar construction.
  • a surface normal of the flange points in the direction of a longitudinal extent of the first housing portion and transversely to the direction of a longitudinal extent of the second housing portion.
  • the second housing portion integrally adjoins one side of the flange.
  • the housing of the charge fluid intake module can be manufactured in any appropriate manner. Construction of the housing as a casting proved to be particularly preferred, in particular as an injection moulding. Only plastic and/or aluminium are particularly suitable as the materials. A plastic injection moulding can be made particularly cheaply.
  • the concept of the invention leads to a charge fluid intake module which is provided in modular fashion as part of a charge fluid intake tract as a modular part, at least having an intake function and a cooling function adapted to the exhaust gas.
  • a charge fluid intake module which is provided in modular fashion as part of a charge fluid intake tract as a modular part, at least having an intake function and a cooling function adapted to the exhaust gas.
  • FIG. 1 to Figure 5 show a charge fluid intake module 1 according to the concept of the invention in a particularly preferred embodiment. Identical reference numbers are used for the same parts in the figures.
  • Figure 2 shows the part-section view of Figure 1 and Figure 3 along the line A - A.
  • the charge fluid intake module 1 is provided for a charge fluid intake tract 10 shown in more detail in Figure 6 to Figure 8 , for an internal combustion engine 11 which in the present case is in the form of a diesel engine.
  • the charge fluid intake module 1 comprises a housing 2 having a first housing portion 3 and a second housing portion 5 which are integrally connected to each other.
  • the first housing portion 3 serves to deliver charge fluid to an internal combustion engine 11, described in more detail in Figure 6 to Figure 8 , within the framework of a charge fluid intake tract 10, and is in the form of a tubular intake connection piece 7 which is also, in the form of a T-shaped part, additionally connected to a further connection piece 9 for an exhaust gas 15.
  • exhaust gas 15 is delivered via the connection piece 9 to the intake connection piece 7 in the T-shaped crossing zone and added to the fresh air.
  • the charge air/exhaust gas mixture 17 leaves the intake connection piece 7 and is delivered to the charge fluid intake tract 10 shown in more detail in Figure 6 to Figure 8 .
  • connection piece 9 For connection of the connection piece 9 to an exhaust gas recirculation pipe 77 described more detail with reference to Figure 6 to Figure 8 and its flange connection 79, the connection piece 9 comprises a flange 18.
  • the rear portion of the intake connection piece 7 For connection of the intake connection piece 7 to the charge fluid intake tract 10, the rear portion of the intake connection piece 7 comprises a flange 19 which is provided with holes 21 for connecting it to a corresponding counter-flange 23 of the charge fluid intake tract 10, shown in more detail in Figure 6 to Figure 8 .
  • the front portion of the intake connection piece 7 is provided with a further flange 25 which in the present case has a triangular, planar construction, in the corners of which are in turn provided openings 27 for connection to a counter-flange 29 of a charge fluid intake tract 10 shown in more detail in Figure 6 to Figure 8 .
  • the first housing portion 3 extends, essentially due to the intake connection piece 7, along a longitudinal extent 14 which is predetermined by the arrows at reference numbers 13 and 17 and which essentially also forms the surface normal of the triangular, planar construction of the flange 25.
  • a longitudinal extent 16 of the second housing portion 5 Transversely to the longitudinal extent of the first housing portion runs a longitudinal extent 16 of the second housing portion 5 which in the present case in the fitted position is arranged below the first housing portion 3 and, as described, transversely thereto.
  • the two housing portions 3 and 5 via the flange 25 which serves as the connecting portion form part of a one-piece housing 2 and are in general manufactured as a plastic injection moulding.
  • the second housing portion 5 is in the present case in the form of a cup-shaped receptacle for a heat exchanger 31 and on the one hand comprises an end flange 33 on which a block end element 35 of the heat exchanger 31 is held by screw connections 37.
  • the heat exchanger 31 is held with a centring pin 39 and a damping element 41 in a centring hole 43 of the second housing portion 5.
  • the heat exchanger 31 is with the centring pin 39 first embedded in the centring hole 43 of the second housing portion 5, and is therefore already in a position according to requirements, so that fixing of the heat exchanger by the above-mentioned screws 37 can then take place via the block end element 35 and the flange 33 of the second housing portion 5.
  • the second housing portion 5 is designed to receive the heat exchanger 31, here formed in a U-flow construction.
  • An exhaust gas stream is here marked by arrows - the exhaust gas 45 enters flow channels 49 located on one side of a partition 47, flows through them as far as a deflecting cover 51, and is then conducted out of the heat exchanger 31 into flow channels 53 located on the other side of the partition 47.
  • the quantity of heat entrained by the exhaust gas is discharged in the heat exchanger 31 to a cooling fluid 56, not shown in more detail, here in the form of a water-based coolant.
  • the second housing portion 5 for this purpose provides a coolant inlet connection piece 55 and a coolant outlet connection piece 57 which are both shown in more detail in Figure 5 .
  • the cooling fluid 56 here circulates round the heat exchanger part 31 through which flows the exhaust gas stream and which is therefore, to put it more precisely, comparatively hot, and thus cools the exhaust gas stream.
  • the second housing portion 5 therefore has a lower temperature than the heat exchanger part 31, the second housing portion 5 can be formed integrally with the first housing portion, also from a less heat-resistant material than the heat exchanger part 31, for example a synthetic or plastic material or here as an aluminium material.
  • the hotter heat exchanger part 31 is here referred to as a heat exchanger 31 for simplicity's sake, but it should be understood that the heat exchanger 31 in general is formed by the hotter heat exchanger part and the second housing portion 5.
  • ribs 59 which in particular stabilise the flanges 25, 19 in conjunction with the intake connection piece 7.
  • ribs 61 run on the inside of the flange 25 and its extension which serves the function of a connecting portion, towards the second housing portion 5.
  • the second housing portion 5 also has ribs 63 running along its longitudinal extent 16 and perpendicularly thereto.
  • a bypass device 73 not shown in more detail in Figure 8 , here in the form of a valve, is activated for the exhaust gas cooler 31.
  • Exhaust gas 45 is delivered from the exhaust gas cooler 31 in the second housing portion 5 through the block end element 35 via an exhaust gas recirculation pipe 77 connected to a flange 75, in cooled form to the connection piece 9 for cooled exhaust gas 15.
  • the exhaust gas recirculation pipe 77 is for this purpose connected to the connection piece 9 by a corresponding flange connection 79.
  • the cooled exhaust gas 15 in the intake connection piece 7 of the first housing portion 3 is added to the fresh air delivered through a fresh-air receiving region 81 in the form of charge air in the region of the intake connection piece 7.
  • mixing elements not shown in more detail here and preferably integrally connected to the housing 2 such as a nozzle-like modification of the connection piece 9 in the region of the opening to the intake connection piece 7, mixing vanes or permeable elements can modify the flow path or be arranged therein.
  • the exhaust gas/air mixture 17 is then delivered to an inlet manifold 83 for the gaseous charge fluid in the form of a mixture of charge air and exhaust gas.
  • the inlet manifold 83 distributes the gaseous charge fluid to a number of individual intake pipes 85 which are associated with the cylinders of the internal combustion engine 11 and via which the gaseous charge fluid is delivered to the cylinders of the engine 11 and there consumed in the combustion process.
  • the charge fluid intake module 1 in its one-piece form as described with reference to Figure 1 to Figure 5 is therefore arranged in front of the inlet manifold 83 of the charge fluid intake tract 10.
  • the continuing charge fluid intake tract 10, in particular the inlet manifold 83 on the one hand and the fresh-air receiving assembly 81 is connected to the charge fluid intake module 1 by the flanges 25, 19 of the charge fluid intake module 1 shown in Figure 1 to Figure 5 .
  • the invention concerns a charge fluid intake module 1 for an internal combustion engine 11 having a housing 2 which forms a flow path for a gaseous charge fluid 13, in particular air, a gas and/or an air/gas mixture.
  • the housing 2 is arranged for receiving a heat exchanger 31 for an exhaust gas 45 and the housing 2 is essentially constructed in one piece with two housing portions 3, 5, a connection piece 7 for the charge fluid on the first housing portion 3 being designed for connection to an inlet manifold 83 of a charge fluid intake tract 10.

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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)

Claims (23)

  1. Ladefluidansaugmodul (1) für eine Verbrennungskraftmaschine (11) mit einem Gehäuse, das einen Strömungsweg für ein gasförmiges Ladefluid (13), insbesondere Luft, ein Gas und/oder ein Luft-/Gasgemisch, bildet, wobei das Gehäuse einen ersten Gehäuseteil (3) und einen zweiten Gehäuseteil (5) umfasst, die miteinander einstückig sind und ein einteiliges Gehäuse (2) bilden, wobei der zweite Gehäuseteil (5) zum Aufnehmen eines Wärmetauschers (31) für ein Abgas (45) konfiguriert ist und der erste Gehäuseteil (3) ein Verbindungsstück (7) für das gasförmige Ladefluid (13) aufweist, das mit dem ersten Gehäuseteil (3) einstückig ist, und der erste Gehäuseteil (3) ein Verbindungsstück (9) für das Abgas (15) aufweist, das mit dem ersten Gehäuseteil (3) einstückig ist, dadurch gekennzeichnet, dass das Verbindungsstück (7) für das Ladefluid einen ersten Flansch (19) zur Verbindung mit einem Einlasskrümmer (83) und einen zweiten Flansch (25) zur Verbindung mit einem Rohr eines Ladefluids (13) aufweist, das ein Verbindungsteil zwischen dem Verbindungsstück (7) des ersten Gehäuseteils (3) und dem zweiten Gehäuseteil (5) ist, und wobei der zweite Gehäuseteil (5) zum Aufnehmen einer Abgasrohranordnung des Wärmetauschers (31) konfiguriert ist und einer oder mehrere Kühlfluideinlasse oder -auslässe am zweiten Gehäuseteil (5) für den Strom von Kühlfluid in dem zweiten Gehäuseteil (5) um die Abgasrohranordnung des Wärmetauschers (31) angeordnet sind.
  2. Ladefluidansaugmodul (1) nach Anspruch 1, dadurch gekennzeichnet, dass eine Bypassvorrichtung (3) für den Wärmetauscher (31), insbesondere ein Bypassventil, in und/oder an dem Gehäuse (2) angeordnet ist, inbesondere auf der Eingangsseite des Wärmetauschers (31) .
  3. Ladefluidansaugmodul (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein Abgasrückführungsventil (71) in und/oder an dem Gehäuse (2) angeordnet ist.
  4. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Verbindungsstück (7) für das Ladefluid und/oder das Verbindungsstück (9) für das Abgas rohrförmig ist.
  5. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Verbindungsstück (9) für das Abgas einen dritten Flansch (18) zur Verbindung mit einem Rohr eines Abgases (15) aufweist.
  6. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Verbindungsstück (7) für das Ladefluid in einer axialen Längserstreckung (14) einerseits zum Aufnehmen von Ladeluft (13) und andererseits zum Auslassen des gasförmigen Ladefluids (17) ausgelegt ist.
  7. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Verbindungsstück (7) für das gasförmige Ladefluid (13) und das Verbindungsstück (9) für das Abgas (15) als T-förmiges Teil am ersten Gehäuseteil (3) ausgebildet sind.
  8. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der zweite Gehäuseteil (5) eine glockenförmige Aufnahme für den Wärmetauscher (31) für das Abgas (45) aufweist.
  9. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der zweite Gehäuseteil (3) zum Aufnehmen der Abgasrohranordnung des Wärmetauschers (31) in einer U-Strömungs-Bauart konfiguriert ist.
  10. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der zweite Gehäuseteil (5) einen Endflansch (33) aufweist, an dem die Abgasrohranordnung des Wärmetauschers (31) auf einer Seite gehalten wird.
  11. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der zweite Gehäuseteil (5) ein Zentrierloch (43) aufweist.
  12. Ladefluidansaugmodul (1) nach Anspruch 10 oder 11, gekennzeichnet durch ein Dämpfungs- und/oder Isolierelement (41), bei dem die Abgasrohranordnung des Wärmetauschers (31) auf der anderen Seite vorzugsweise mit einem Dämpfungs- und/oder Isolierelement festgehalten wird.
  13. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass das Gehäuse (2), insbesondere wenigstens eine äußere Seite des zweiten Gehäuseteils (5), Kühl- und/oder Verstärkungsrippen (59, 61, 63) aufweist.
  14. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass der erste Gehäuseteil (3) und der zweite Gehäuseteil (5) in Einbaulage untereinander angeordnet sind.
  15. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass eine Längserstreckung (14) des ersten Gehäuseteils (3) quer zu einer Längserstreckung (16) des zweiten Gehäuseteils (5) ausgerichtet ist.
  16. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass eine zu dem zweiten Flansch (25) senkrechte Oberfläche in Richtung einer Längserstreckung (14) des ersten Gehäuseteils (3) und quer zur Richtung einer Längserstreckung (16) des zweiten Gehäuseteils (5) zeigt.
  17. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass der zweite Flansch (25) einen im Wesentlichen dreieckigen ebenflächigen Aufbau hat.
  18. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, dass der zweite Gehäuseteil (5) einstückig an eine Seite des zweiten Flansches (25) angrenzt.
  19. Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 18, dadurch gekennzeichnet, dass das Gehäuse (2) als Gussteil, insbesondere als Spritzgussteil, vorzugsweise aus Kunststoff und/oder Aluminium, ausgebildet ist.
  20. Anlage, umfassend ein Ladefluidansaugmodul nach einem der Ansprüche 1 bis 19 und einen Wärmetauscher, insbesondere einen Wärmetauscher in einer U-Strömungs-Bauart, wobei die Abgasrohranordnung des Wärmetauschers (31) in dem zweiten Gehäuseteil (5) aufgenommen ist und ein Rohr eines Abgases (15) in Form eines Abgasrückführungsrohrs (77) mit einem dritten Flansch (18) des ersten Gehäuseteils (3) verbunden ist und mit der Abgasrohranordnung des Wärmetauschers (31) des zweiten Gehäuseteils (5) in strömungsführender Beziehung verbunden ist.
  21. Ladefluidansaugtrakt (10) für eine Verbrennungskraftmaschine (11) mit einem Ladefluidansaugmodul nach einem der Ansprüche 1 bis 19 oder einer Anlage nach Anspruch 20, der insbesondere ferner Folgendes aufweist:
    - einen Ansaugkrümmer (83) für das gasförmige Fluid mit
    - einer Anzahl von einzelnen Ansaugrohren (85), die den Zylindern der Verbrennungskraftmaschine (11) zugeordnet sind und durch welche das gasförmige Fluid (13) den Zylindern der Maschine (11) zugeführt werden kann; und
    - wobei das einteilige Gehäuse (2) des Ladefluidansaugmoduls oder der Anlage vor dem Ansaugkrümmer (83) angeordnet ist.
  22. Abgasrückführungsanlage, insbesondere Hochdruck-Abgasrückführungsanlage, mit einem Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 19 oder einer Anlage nach Anspruch 20.
  23. Verbrennungskraftmaschine (11) mit einem Ladefluidansaugmodul (1) nach einem der Ansprüche 1 bis 19 oder einer Anlage nach Anspruch 20.
EP07021265A 2007-10-31 2007-10-31 Ansaugluft-Einlassmodul, Ansaugluft-Einlasssystem, Ansaugluft-Einlasstrakt, Abgasrückführsystem, Verbrennungsmotor Active EP2055921B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT07021265T ATE547614T1 (de) 2007-10-31 2007-10-31 Ansaugluft-einlassmodul, ansaugluft-einlasssystem,ansaugluft-einlasstrak , abgasrückführsystem, verbrennungsmotor
ES07021265T ES2385013T3 (es) 2007-10-31 2007-10-31 Módulo de admisión de fluido de carga, sistema de admisión de fluido de carga, vía de admisión de fluido de carga, sistema de recirculación de gas de escape, motor de combustión interna
EP07021265A EP2055921B1 (de) 2007-10-31 2007-10-31 Ansaugluft-Einlassmodul, Ansaugluft-Einlasssystem, Ansaugluft-Einlasstrakt, Abgasrückführsystem, Verbrennungsmotor

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EP07021265A EP2055921B1 (de) 2007-10-31 2007-10-31 Ansaugluft-Einlassmodul, Ansaugluft-Einlasssystem, Ansaugluft-Einlasstrakt, Abgasrückführsystem, Verbrennungsmotor

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EP2055921A1 EP2055921A1 (de) 2009-05-06
EP2055921B1 true EP2055921B1 (de) 2012-02-29

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DE102009012024A1 (de) * 2009-03-10 2010-09-16 Behr Gmbh & Co. Kg Ladeluftkühler zur Anordnung in einem Saugrohr
DE102011080204A1 (de) * 2011-08-01 2013-02-07 Behr Gmbh & Co. Kg Sammelkasten für einen Wärmetauscher, insbesondere einen Ladeluftkühler
JP6166978B2 (ja) * 2013-07-29 2017-07-19 株式会社ケーヒン 内燃機関用吸気マニホールド
FR3013110B1 (fr) * 2013-11-08 2018-11-09 Valeo Systemes Thermiques Echangeur de chaleur comprenant un faisceau d'echange connecte a deux extremites opposees aux parois du boitier
FR3015015A1 (fr) * 2013-12-18 2015-06-19 Valeo Systemes Thermiques Echangeur de chaleur comprenant un faisceau muni de moyens permettant de limiter les mouvements dudit faisceau d'echange par rapport aux parois du boitier
FR3046633A1 (fr) * 2016-01-11 2017-07-14 Peugeot Citroen Automobiles Sa Moteur a combustion interne comprenant un systeme de recyclage de gaz d’echappement
NL2023045B1 (en) * 2019-05-01 2020-12-02 Prysmian Spa Cable assembly

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DE19841927A1 (de) * 1998-09-14 2000-03-16 Wahler Gmbh & Co Gustav Einrichtung zur Rückführung eines Abgasstromes zum Saugrohr einer Brennkraftmaschine
FR2792968B1 (fr) 1999-04-29 2001-06-29 Westaflex Automobile Echangeur thermique en plastique et acier destine a etre dispose dans un circuit d'admission d'air d'un moteur, notamment dans un repartiteur comportant deux chambres et element du circuit d'admission d'air d'un moteur
DE10321533B4 (de) * 2003-05-14 2005-04-14 Pierburg Gmbh Luftansaugkanalsystem für eine Verbrennungskraftmaschine
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GB2416001B (en) 2004-07-07 2006-11-22 Visteon Global Tech Inc Intake air and recirculated exhaust gas cooling system
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ATE547614T1 (de) 2012-03-15
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