WO2016020163A1 - Refroidisseur équipé d'un séparateur de liquide - Google Patents

Refroidisseur équipé d'un séparateur de liquide Download PDF

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Publication number
WO2016020163A1
WO2016020163A1 PCT/EP2015/066201 EP2015066201W WO2016020163A1 WO 2016020163 A1 WO2016020163 A1 WO 2016020163A1 EP 2015066201 W EP2015066201 W EP 2015066201W WO 2016020163 A1 WO2016020163 A1 WO 2016020163A1
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WO
WIPO (PCT)
Prior art keywords
fiber structure
cooler
liquid
separator
gas flow
Prior art date
Application number
PCT/EP2015/066201
Other languages
German (de)
English (en)
Inventor
Harald Rieger
Hartmut Sohla
Original Assignee
Mahle International Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahle International Gmbh filed Critical Mahle International Gmbh
Publication of WO2016020163A1 publication Critical patent/WO2016020163A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/22—Safety or protection arrangements; Arrangements for preventing malfunction for draining

Definitions

  • the present invention relates to a cooler for cooling a gas flow, in particular an exhaust gas recirculation cooler for cooling recirculated exhaust gas with a radiator block having a flowed through by the gas flow gas path and a coolant flowed through by a coolant path, which are thermally coupled to each other thermally coupled to each other and with a liquid to Depositing liquid from the gas flow, which is arranged with respect to a flow direction of the gas flow downstream of the radiator block.
  • the invention also relates to a motor vehicle with such a radiator and a use of such a radiator.
  • a cooler usually comprises a radiator block which has a gas path through which the gas flow can flow and a coolant path through which a coolant can flow, which are thermally coupled to one another in a media-separated manner.
  • a radiator block which has a gas path through which the gas flow can flow and a coolant path through which a coolant can flow, which are thermally coupled to one another in a media-separated manner.
  • exhaust gas recirculation in which exhaust gas from an exhaust system is externally supplied to a fresh air system to mix the recirculated exhaust gas with the fresh air upstream of combustion chambers of an internal combustion engine.
  • Such exhaust gas recirculation has proved to be advantageous in terms of fuel consumption and pollutant emissions of the internal combustion engine.
  • supercharged internal combustion engines a distinction is made between high-pressure exhaust gas recirculation and low-pressure exhaust gas recirculation.
  • a supercharged internal combustion engine is equipped with an exhaust gas turbocharger, the turbine is arranged in the exhaust system and the compressor is arranged in the fresh air system.
  • the compressor and turbine subdivide the fresh air system and the exhaust system into a high-pressure area and a low-pressure area.
  • the fresh air side low pressure range stretches upstream of the compressor.
  • the fresh-air-side high-pressure region extends downstream of the compressor.
  • the exhaust side low pressure region extends downstream of the turbine.
  • the exhaust-gas high-pressure area extends upstream of the turbine.
  • a high-pressure exhaust gas recirculation is thus upstream of the turbine and downstream of the compressor.
  • low-pressure exhaust gas recirculation takes place downstream of the turbine and upstream of the compressor.
  • the exhaust gas may contain water in the form of water vapor, which may be produced by the combustion processes. Also may be contained in the sucked from the environment fresh air water in the form of water vapor.
  • the recirculated exhaust gas is usually cooled by means of an exhaust gas recirculation cooler, for example, to increase the mass flow of fresh air.
  • the recirculated exhaust gas can cool below the dew point of water, as a result of which condensation can occur, so that liquid water is obtained. This can form drops that can damage downstream following components. Both mechanical and corrosive damage is possible.
  • a compressor wheel which rotates in the compressor at high speed, is exposed by the collision with droplets of increased risk of damage. Furthermore, condensate can precipitate and freeze in adverse environmental conditions. Again, in particular, the compressor wheel is exposed to increased risk.
  • the present invention has for its object to prevent deformation and / or damage of the liquid separator.
  • the invention is based on the general idea of supporting the separator fiber structure of the liquid separator and thus reducing or avoiding deformation and / or damage to the separator fiber structure.
  • the liquid separator has at least one mechanically stabilized Abscheidemaschine minimalist, which is traversed by the gas flow and receives the liquid from the gas flow and dissipates.
  • Mechanically stabilized means that the precipitation fiber structure by one or more measures has an increased mechanical stability against bulging due to the gas flow.
  • the bulging of the Abscheidemaschine minimalist can be reduced and thus damage can be prevented.
  • the mechanical stabilization of the Abscheidemaschine minimalist is reduced by the mechanical stabilization of the Abscheidemaschine minimalist.
  • “flat” or “flat” means that an extension of a body in two directions is greater than in a third direction.
  • the extension in the two directions is at least twice as large, preferably five times as large or particularly favorable ten times as big as in the third direction.
  • the three spatial directions are perpendicular to each other.
  • the deposition fiber structure has a mesh, mesh structure comprising a woven fabric, a knitted fabric, a knitted fabric and / or fils.
  • the liquid separator has a support fiber structure, which is arranged on the at least one Abscheidemaschine minimalist.
  • the support fiber structure formed for mechanical stabilization may support the separator fiber structure so that the separator fiber structure deforms less when exposed to the gas flow.
  • the Abscheidemaschine minimalist can be optimized for the best possible separation behavior out.
  • the support fiber structure has a grid, mesh structure, a woven fabric, a knitted fabric, a knitted fabric and / or fils.
  • the liquid separator has a support fiber structure which is arranged in the at least one deposition fiber structure. This is possible, for example, when special supporting fibers are incorporated in the Abscheidemaschine minimalist, so that the Abscheidemaschine minimalist can be supported. Again, there is the advantage that the Abscheidemaschine minimalist must be designed only according to criteria for the separation of liquid from the gas flow out.
  • a particularly advantageous possibility provides that the support fiber structure is applied to a downstream side of the at least one Abscheidemaschine minimalist. Since the bulge caused by the gas flow of the Abscheidemaschine minimalist would take place just in the current direction, the application of the support fiber structure causes the downstream side of the Abscheidemaschine minimalist that under the effect of the gas flow, the Abscheidemaschine minimalist applies to the support fiber structure and thus little or no bulge.
  • the support fiber structure rests on both sides of the at least one Abscheidemaschine minimalist. Due to the support on both sides of the at least one deposition fiber structure, a particularly good mechanical stabilization of the deposition fiber structure is achieved since bulging of the deposition fiber structure can be prevented or reduced both in the current direction and against the flow direction of the gas flow.
  • a favorable possibility provides that the support fiber structure loosely applied to the at least one Abscheidemaschine minimalist. This possibility is particularly easy to produce, since no further connection between the support fiber structure and the Abscheidemaschine minimalist is necessary.
  • a particularly favorable possibility provides that the support fiber structure is interwoven with the Abscheidemaschine Weg Modell, soldered, pressed, glued or welded. In this way, the supporting effect of the support fiber structure can be particularly well utilized.
  • the support fiber structure has a larger mesh size than the Abscheidemaschine Weg.
  • the support fiber structure influences the deposition behavior of the deposition fiber structure only slightly or not at all.
  • tissue size is not limited to tissue but generally includes a middle one Distance of the fiber centers of fibers within a fiber structure, such as felt, knitted or knitted fabric.
  • a favorable solution provides that the support fiber structure has a greater fiber thickness than the Abscheidemaschine minimalist.
  • the individual fibers of the support fiber structure are more stable and thereby can effectively support the deposition fiber structure.
  • the support fiber structure has a different material than the Abscheidemaschine Weg GmbH.
  • the support fiber structure may comprise fibers having a high strength
  • the deposition fiber structure comprises, for example, fibers whose surfaces are particularly well suited for the separation of liquids from a gas flow.
  • a good mechanical stability can be combined with good deposition properties.
  • the liquid separator has a holding frame with support struts, in or on which the Abscheidemaschine minimalist is held. If a support fiber structure is present, both the deposition fiber structure and the support fiber structure may be held in the support frame with support struts.
  • the support struts of the support frame provide mechanical support to the deposition fiber structure so that the bulging of the deposition fiber structure by the gas flow is reduced.
  • a further advantageous solution provides that the Abscheidemaschine minimalist is cup-shaped.
  • the Abscheidemaschine minimalist has a curved surface, which leads to a stiffening against bending and thus against the bulging by the gas flow.
  • the cup-shaped formation of the Abscheidemaschine minimalist liquid which was deposited in the Abscheidemaschine minimalist from the gas flow, led to the center of the shell, from where it can be passed out of the condenser by a condensate drain.
  • the Abscheidemaschine minimalist is frusto-conical and the condensate drain is arranged on a top surface of the truncated cone. Furthermore, it is possible to form the Abscheidemaschineregal truncated pyramid and to arrange the condensate drain on a top surface of the truncated pyramid.
  • the support fiber structure is channel-shaped.
  • the support fiber structure is arranged obliquely to the gas flow, whereby the support fiber structure has a higher stability against bulging by the gas flow and thus can better support the Abscheidefaser minimalist.
  • the support fiber structure is cup-shaped.
  • the curvature of the support fiber structure stiffens it, thereby increasing the bending resistance of the support fiber structure so that the support fiber structure can better support the deposition fiber structure.
  • the precipitation fiber structure is embossed and / or bulged.
  • the embossing and / or bulging of the Abscheidemaschinertz this is stiffened, so that a bulging is reduced by the gas flow.
  • the support fiber structure is embossed and / or bulged.
  • the support fiber structure is stiffened so that it can better support the Abscheidemaschine minimalist.
  • the Abscheidemaschine Vietnamese is formed such that the Abscheidemaschine Cook existing in the Abscheidemaschine Vietnamese liquid under the influence of gravity and / or gas flow leads to a condensate discharge or leads to a condensate collecting the Abscheidemaschine Vietnamese on which a condensate drain is arranged ,
  • the liquid separated from the gas flow can be directed to the condensate drain, through which the liquid can be passed out of the cooler.
  • the liquid is removed from the gas flow and can not damage any devices behind the radiator, such as compressors.
  • the condensate discharge is arranged on the region which is at the rearmost in the flow direction of the gas flow and / or in the region of the bottom of the precipitation fiber structure which is in the direction of gravity. In this way, movement caused by gravity and / or gas flow in the liquid in the separator fiber structure leads to the condensate drain.
  • the condensate collecting region is arranged on the region which is at the rearmost in the direction of flow of the gas flow and / or in the region of the lowest in the direction of gravity of the separating fiber structure. In this way, a movement in the liquid in the separator fiber structure caused by gravity and / or by the gas flow leads to the condensate discharge.
  • the deposition fiber structure is formed such that the deposition fiber structure has regions inclined toward the condensate collection region. That is, a point of two adjacent points lies on such an inclined portion of the separator fiber structure, which is closer to the condensate collecting area than the other of the two adjacent points, downstream of the other point, as viewed in the flow direction of the gas flow and / or in the direction of gravity.
  • liquid in the separator fiber structure which is moved by gravity and / or by the flow in the separator fiber structure, is also moved closer to the condensate collection area.
  • the cooler has a condensate drain through which liquid deposited in the liquid separator can drain out of the cooler and that the cooler comprises a conveying device for conveying the liquid through the condensate drain.
  • the position of the condensate drain is variable, so that the freedom of design is increased.
  • the installation position of the liquid separator is not limited to a horizontal installation.
  • a liquid discharge can be ensured by the conveying device.
  • the conveying device comprises a pump, so that the liquid can be actively conveyed / pumped out by the condensate drain.
  • the removal of the liquid from the cooler can be improved.
  • a particularly favorable possibility provides that the conveyor exploits a motor or system vacuum.
  • Internal combustion engines usually generate a negative pressure on the fresh air side; in supercharged internal combustion engines, the compressor generates a negative pressure which can be exploited in order to suck liquid out of the cooler.
  • the condensate drain on an openable valve through which condensate can be sucked by means of negative pressure from the radiator. This can also be done against gravity or capillary force.
  • a favorable condensate drain for production has a rectangular shape.
  • the condensate drain can be formed in a streamlined manner, for example funnel-shaped.
  • a favorable variant provides that the separator fiber structure is flowed through by the gas flow.
  • the Abscheidemaschine minimalist can free the gas flow particularly effective liquid droplets.
  • Another favorable variant provides that the Abscheidemaschine minimalist covers a cross section of the radiator substantially completely. Thereby, the proportion of the gas flow flowing past the Abscheidemaschine minimalist can be reduced. In particular, this cleans the entire gas flow through the cooler through the separator fiber structure.
  • a particularly favorable variant provides that the Abscheidemaschine Vietnamese is held on a support frame and is additionally mechanically stabilized.
  • the clamping of the Abscheidemaschine Vietnamese in a holding frame increases in itself already the mechanical stability of the Abscheidemaschine minimalist. Without such Holding frame, the Abscheidemaschine Vietnamese could not be kept in a desired position.
  • the additional mechanical stabilization of the Abscheidemaschine Vietnamese the deformation of the Abscheidemaschine minimalist can be prevented within the holding frame or at least reduced.
  • liquid separator has at least two Abscheidemaschine Weg GmbH, which are spaced apart by a gap, and that the gap has a varying gap width.
  • the gap width By varying the gap width, the flow behavior of liquid deposited in the deposition fiber structures can be influenced.
  • a particularly advantageous variant provides that the cooler has a condensate drain, through which liquid from the Abscheidemaschine Weg GmbH can run out of the cooler, and that the gap width of the gap between the Abscheidemaschine Modellen tapers to the condensate drain.
  • the rejuvenation of the gap width directs liquid in the separator fiber structures to the condensate drain.
  • the flow of liquid to the condensate drain and thus be improved out of the cooler out.
  • the above object is achieved by the use of a radiator as described above in an exhaust gas recirculation system for cooling recirculated exhaust gas.
  • a radiator as described above in an exhaust gas recirculation system for cooling recirculated exhaust gas.
  • Fig. 1 is a greatly simplified schematic diagram-like schematic representation of a
  • Fig. 2 is a greatly simplified longitudinal section through a radiator
  • Fig. 3 is a plan view of a liquid separator according to a first
  • FIG. 4 is a sectional view along a section line AA through the liquid separator of Fig. 3,
  • Fig. 5 is a perspective view of the liquid separator
  • FIG. 3 an exploded view of the diesstechniksabscheiders of Fig. 3, a sectional view through a Abscheidemaschineregal, a sectional view of a Abscheidemaschine Vietnamese invention with a one-sided supporting fiber structure, a sectional view of a Abscheidemaschine Vietnamese invention with both sides adjacent support fiber structures, a plan view of a liquid according to a second embodiment, a sectional view 8 is a perspective view of the liquid separator of FIG. 8, an exploded view of the liquid separator of FIG. 8, a perspective view of a trough-shaped separator fiber structure, a perspective view of a cup-shaped separator fiber structure, FIG. 14 shows a perspective view of a pyramid-shaped deposition fiber structure,
  • FIG. 15 is a perspective view of the channel-shaped Abscheidefa- ser Modell of FIG. 12 in a mounting position for a horizontal gas flow
  • FIG. 16 is a perspective view of a bowl-shaped Abscheide- fiber structure of FIG. 13 in a mounting position for a horizontal gas flow and
  • FIG. 17 shows a perspective view of a pyramid-shaped deposition-fiber structure from FIG. 14 in an installed position for a horizontal gas flow.
  • An internal combustion engine 1 shown in Fig. 1 comprises an engine block 2 with a plurality of combustion chambers 3, a fresh air system 4 for supplying fresh air to the combustion chambers 3, an exhaust system 5 for discharging exhaust gas from the combustion chambers 3 and an exhaust gas recirculation system 6 for returning exhaust gas from the Exhaust system 5 to the fresh air system 4.
  • the fresh air system 4 includes a fresh air filter 7, a compressor 8 of an exhaust gas turbocharger 9, a charge air cooler 10 and a throttle device 1 1, for example in the form of a throttle valve.
  • the intercooler 10 is connected to a cooling circuit 12.
  • the exhaust system 5 includes a turbine 13 of the exhaust gas turbocharger 9, which is connected via a drive shaft 14 to the compressor 8.
  • the exhaust system 5 includes a catalyst 15 and a throttle device 16, for example in the form of a storage flap.
  • the exhaust gas recirculation system 6 includes an exhaust gas recirculation valve 17 and an exhaust gas recirculation cooler 18, which is connected to a cooling circuit 19.
  • a removal part 20 of the exhaust gas recirculation system 6 is arranged here downstream of the turbine 13 on the exhaust system 5.
  • An introduction point 21 of the exhaust gas recirculation system 6 is arranged upstream of the compressor 8 on the fresh air system 4. Accordingly, this is a low-pressure exhaust gas recirculation.
  • the cooling circuit 12 of the charge air cooler 10 and / or the cooling circuit 19 of the exhaust gas recirculation cooler 18 may be coupled to an engine cooling circuit 22. It can also be a separate cooling circuit.
  • the exhaust gas recirculation cooler 18, which is also referred to below generally as “cooler 18", comprises a cooler block 23 and a liquid separator 24 for separating liquid from a gas flow 25 which flows through the cooler block 23.
  • the liquid separator 24 is arranged downstream of the cooler block 23.
  • the cooler block 23 has a gas flow path 27 through which the gas flow 25 can flow. Furthermore, the radiator block 23 includes a coolant path 28, which can be traversed by a preferably liquid coolant.
  • the coolant path 28 and the gas path 27 are thermally coupled but media separated. Accordingly, the coolant path 28 may remove heat from the gas path 27.
  • the liquid separator 24 is preferably arranged at a distance from a gas outlet side 26 of the radiator block 23.
  • the liquid separator covers a cross-section 30 of the radiator 18 substantially completely, so that the liquid separator 24 is flowed through by the gas flow 25.
  • the radiator 18 has a condensate drain 32, through which liquid, which is collected by the liquid separator 24 from the gas flow 25, can be passed out of the radiator 18.
  • the condensate drain 32 is arranged in the direction of gravity below the liquid separator 24, so that due to the gravity caused movement / flow of liquid, the liquid flows into the condensate drain 32.
  • the condensate drain 32 is arranged between the gas outlet side 26 of the cooling block 23 and the liquid separator 24.
  • liquid which has already been deposited in the gas path 27 or has precipitated on a cooler wall 34 between the gas outlet side 26 and the liquid separator 24 can also flow out of the cooler through the condensate outlet 32.
  • the liquid separator 24 has at least one, for example two deposition fiber structures 36, a first holding frame 38 and a second holding frame 40 and a spacer 42. Both the first holding frame 38 and the second holding frame 40 each have a separator fiber structure 36 held therein.
  • the Abscheidemaschine Vietnamese 36 is welded, glued, soldered, clamped, pressed, crimped or form-fitting introduced.
  • the holding frames 38 and 40 are respectively disposed with the side on which the Abscheidemaschine Weg Designen 36 are held, to each other and separated by the spacer 42 from each other.
  • the holding frame 38 and 40 and the spacer 42 may be held together by material and / or positive connection, for example by welding, soldering or clamping screws.
  • a gap is formed between the Abscheidemaschine Weg Designen 36.
  • the gap can be uniform, so that the deposition fiber structures 36 run approximately parallel to one another.
  • a gap width of the gap between the Abscheidemaschine Vietnamese Designen 36 vary, in particular taper.
  • the gap may be wedge-shaped. This can be achieved, for example, by varying the thickness of the spacer 42.
  • the gap width of the gap between the deposition fiber structures 36 tapers towards the condensate drain 32.
  • the support frames 38 and 40 may be arranged such that the deposition fiber structures 36 are disposed on an upstream side of the support frames 38 and 40, respectively.
  • the holding frames 38 and 40 have, for example, a substantially rectangular gas passage opening 44, in particular with rounded corners, through which the gas flow 25 can flow.
  • the gas passage opening 44 is surrounded by a frame structure 46, on which the Abscheidemaschine Weg 36 is held.
  • the spacer 42 has a gas passage opening 48 which, for example, has a substantially rectangular shape, in particular with rounded corners.
  • the Gas screentrittso réelle 48 is incompletely enclosed by a frame structure 50. As seen in the direction of gravity, the frame structure 50 has a recess 51 through which liquid deposited in the liquid separator 24 can emerge from the liquid separator 24.
  • the width of the frame structure 50 of the spacer 42 and thus the distance between the two Abscheidemaschine Weg Designen 36 is between 0.1 and 50 mm, advantageously between 0.5 and 10 mm, more preferably between 5 and 10 mm, in particular, the frame structure 50 of the spacer 42 has a width of 6 mm.
  • the Abscheidemaschineregal 36 is preferably formed flat.
  • the Abscheidemaschineregal 36 a plurality of fibers 54 which form, for example, a fabric, a knitted fabric, a knitted fabric or a felt or the like.
  • the size of the openings 56 is adapted to the expected size of the liquid droplets within the gas flow 25.
  • the largest possible part of the liquid droplets from the gas flow 25 should be at least one 54 of the Abscheidemaschine Vietnamese 36 touch and thereby be caught from the Gasstrmo- tion 25.
  • the Abscheidemaschine Weg GmbH may have multiple layers, which in particular have a different mesh sizes 60 and / or different fibers 54 and / or different structures.
  • the deposition fiber structure 36 comprises hydrophilic fibers 54.
  • hydrophilic fibers 54 water droplets, which are to be deposited from the gas flow 25 adhere particularly well.
  • the deposition fiber structure 36 may include ceramic and / or metallic fibers 54.
  • the size of the openings 56 and a fiber thickness 58 of the fibers 54 essentially determine a mesh width 60 of the deposition fiber structure 36.
  • the mesh width 60 is essentially the average distance of the fiber centers of the fibers 54 from one another.
  • the liquid separator 24 has at least one support fiber structure 62.
  • the liquid separator 24 has at least one support fiber structure 62 for each deposition fiber structure 36, for example four support fiber structures 62 in total.
  • the support fiber structure 62 has a plurality of support fibers 64, which form a woven, knitted, knitted or felt, whereby a flat formation of the support fiber structure 62 is made possible.
  • the choice of fiber material, mesh size 60 and fiber thickness 58 can be chosen independently of the liquid separation behavior. As a result, a good mechanical stability can be achieved in a simple manner, so that the support fiber structure 62 can support the deposition fiber structure 36 against the pressure from the gas flow 25.
  • the support fiber structure 62 has a larger mesh size 60 than the deposition fiber structure 36 and the support fibers 64 have a greater fiber thickness 58 than the fibers 54 of the deposition fiber structure 36. This achieves a high mechanical stability of the support fiber structure 62 and at the same time a high gas permeability of the support fiber structure 62 so that the flow behavior of the support fiber structure 62 and separator fiber structure 36 is only slightly affected by the support fiber structure 62.
  • the support fiber structure 62 is applied to the deposition fiber structure 36.
  • the support fiber structure 62 is disposed on the downstream side 66 of the deposition fiber structure 36.
  • the bulge of the separator fiber structure 36 caused by the pressure of the gas flow 25 is inhibited by the support fiber structure 62 because the precipitate fiber structure 36 bulges against the support fiber structure 62 so that the support fiber structure 62 can hold against the pressure of the gas flow 25.
  • a support fiber structure 62 is arranged on both sides of the deposition fiber structure 36.
  • the support fiber structure 62 is integrated into the Abscheidemaschine Vietnamese Design 36. That is, the backing fibers 64 together with the fibers 54 of the separator fiber structure 36 together form a woven, knitted, knitted or felted fabric.
  • the support fibers 64 is also mechanically stabilized so that the Abscheidemaschine Vietnamese 36 can counteract the pressure of the gas flow 25.
  • the support fiber structure 62 is then arranged / integrated in the Abscheidemaschine Vietnamese 36.
  • the support fiber structure 62 and the separator fiber structure 36 may also be soldered, pressed, glued or welded together.
  • the support fiber structure 62 is thus held together with the Abscheidemaschine für 36 to the respective support frame 38 or 40.
  • a second embodiment of the liquid separator 24 shown in FIGS. 8 to 11 differs from the first embodiment of the liquid separator 24 shown in FIGS. 1 to 7c in that the Support frame 38 and 40 each have support struts 68, which support the Abscheidemaschine Weg Designen 36 instead of the support fiber structures 62 and thereby mechanically stabilize.
  • the support struts 68 extend over gas passage openings 44.
  • two support struts 68 extend crossed to one another via the gas passage opening 44, so that the gas passage opening 44 is subdivided into four smaller gas passage openings 70.
  • the number and thickness of the support struts 68 can be adapted to the respective geometry and gas flow 25 in order to achieve optimum stabilization of the Abscheidemaschine Weg Design 36.
  • the Abscheidemaschine Cook 36 is held both on the frame structure 46 and on the support struts 68. Thus, a Abscheidemaschine minimalist 36 attached downstream of the support frame 38 is mechanically stabilized by the support struts 68.
  • the Abscheidemaschine Vietnamese Design 36 may be welded to the support struts 68, glued, soldered, clamped, pressed, crimped or mounted form-fitting.
  • the second embodiment of the liquid separator 24 illustrated in FIGS. 8 to 11 corresponds to the first embodiment of the liquid separator 24 shown in FIGS. 1 to 7c with regard to construction and function, to the above description of which reference is made in this respect.
  • a third embodiment of the liquid separator 24 is a combination of the first embodiment of the liquid separator 24 shown in FIGS. 1 to 7c and the second embodiment of the liquid separator 24 shown in FIGS. 8 to 11.
  • the separator fiber structure 36 becomes supported by both a support fiber structure 62 and support struts 68.
  • the third embodiment of the liquid separator 24 coincides with the first embodiment of the liquid separator 24 shown in FIGS. 1 to 7c and with the second embodiment of the liquid separator 24 shown in FIGS. 8 to 11 with respect to structure and function, to the above description thereof Reference is made.
  • a fourth embodiment of the liquid separator 24 shown in FIGS. 12 to 14 differs from the first embodiment of the liquid separator 24 shown in FIGS. 1 to 7c in that the deposition fiber structure 36 is embossed and / or bulged and / or channel-shaped and / or cup-shaped ,
  • the embossing and / or bulging and / or channel shape and / or shell shape of the separator fiber structure 36 cause curvature at least in portions of the separator fiber structure 36. Any curvature of a planar element causes the stiffness to increase against a bend transverse to that curvature.
  • a deposition fiber structure 36 shown in FIG. 12 is designed, for example, in the shape of a channel.
  • the Abscheidemaschine Weg Manual 36 has two the condensate drain 32 facing surfaces 72, which liquid from the gas flow 25th lead to the condensate drain 32.
  • the movement of the liquid in the liquid separator 24 is driven by gravity and / or by the gas flow 25.
  • the condensate drain 32 is located downwardly in the direction of gravity so that the liquid from the separator fiber structure 36 can collect in the condensate drain 32.
  • the flow direction of the gas flow 25 is rectified as the direction of gravity, so that the liquid driven by the gas flow 25 can collect in the condensate drain 32.
  • the condensate drain 32 is elongated and extends at a joint line of the two inclined to the condensate drain 32 walls 72 of the Abscheidemaschine minimalist 36th
  • the gap may be uniform, as is shown in FIG. 12, for example, so that the deposition fiber structures 36 are approximately parallel to one another.
  • a gap width of the gap between the deposition fiber structures 36 may be tapered.
  • the gap between the deposition fiber structures 36 tapers towards the condensate drain 32.
  • the gap width in the region of the condensate drain 32 is preferably smaller than in an edge region of the separator fiber structures 32 with a greater distance from the condensate drain 32.
  • FIG. 13 A further variant of the deposition fiber structure 36 is shown in FIG. 13 and has a shell-shaped deposition fiber structure 36.
  • the Abscheidefaser Weg 36 has a curved, inclined to the condensate drain 32 Wall 72, which surrounds the condensate drain 32.
  • the wall 72 encloses a volume 76 arranged above the condensate outlet 32.
  • condensate collecting area 74 In the center of the wall 72, there is disposed a condensate collecting area 74 to which liquid accumulated in the separator fiber structure 36 flows due to gravity and / or gas flow 25.
  • the condensate drain 32 In this condensate collecting region 74, the condensate drain 32 is arranged to receive liquid which accumulates in the condensate collecting region 74 and to guide it out of the cooler 18.
  • FIG. It has four walls 72 inclined to the condensate outlet 32. Together they form a lateral surface of a truncated pyramid. On the top surface of the truncated pyramid, a condensate collecting region 74 is arranged, on which the condensate drain 32 is arranged, in order to drain off liquid, which collects in the condensate collecting region 74, and to guide it out of the cooler 18.
  • the condensate collecting area 72 is lower in the direction of gravity and / or in the flow direction of the gas flow 25 or behind the walls 72 of the Abscheidemaschine Weg Design 36. Consequently, liquid which collects in the Abscheidemaschine Vietnamese 36, by gravity and / or by the gas flow 25 on the walls 72 out to the condensate collecting region 74 from where the liquid can flow out of the cooler 18 through the condensate drain 32.
  • the gap width of the gap between the separator fiber structures 36 tapers toward the condensate outlet 32.
  • the non-flat Abscheidemaschine Vietnamese Designen 36 according to the fourth embodiment can also be combined with the mechanical stabilization measures according to the first to third embodiments.
  • a support fiber structure 62 may be provided, which corresponding Abscheidefa- ser réelle 36 is formed.
  • the fourth embodiment of the liquid separator 24 illustrated in FIGS. 12 to 14 is identical in construction and function to the first embodiment of the liquid separator 24 shown in FIGS. 1 to 7c, to the above description of which reference is made.
  • a fifth embodiment of the liquid separator 24 shown in FIGS. 15 to 17 differs from the fourth embodiment of the liquid separator 24 shown in FIGS. 12 to 14, in that the flow direction of the gas flow 25 is arranged transversely to the direction of gravity.
  • the condensate drain 32 is arranged on the rearmost region of the separator fiber structure 36, viewed in the flow direction of the flow 25. Consequently, only the gas flow 25 is utilized to direct the liquid from the separator fiber structure 36 to the condensate drain 32. Accordingly, a drain pipe 80 of the condensate drain 32 will extend transversely to the direction of gravity. In order to be able to discharge the liquid through the outlet pipe 80 of the condensate outlet 32, a conveyor 78, for example, can be provided, which conveys liquid out of the cooler 38 via the condensate outlet 32.
  • the conveyor 78 may for example comprise a pump.
  • the conveyor 78 may utilize engine or system vacuum to deliver liquid through the condensate drain 32 from the radiator 18.
  • a valve may be provided in the drain pipe 80 of the condensate drain 32, through which the condensate drain 32 can be subjected to negative pressure, so that the condensate is sucked through the drain pipe 80.
  • the gap width of the gap between the deposition fiber structures 36 tapers toward the condensate outlet 32.
  • FIGS. 15 to 17 the embodiment of the liquid separator 24 illustrated in FIGS. 15 to 17 is identical to the fourth embodiment of the liquid separator 24 shown in FIGS. 12 to 14 with regard to construction and function, to the above description of which reference is made.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Abstract

L'invention concerne un refroidisseur (18), destiné à refroidir un flux de gaz (25), en particulier dans un moteur à combustion interne (1), de préférence dans un véhicule automobile, qui comprend un bloc de refroidisseur (23) pourvu d'un chemin de gaz (27) traversé par un flux de gaz (25) et d'un chemin d'agent de refroidissement (28) traversé par un agent de refroidissement, lesquels chemins sont couplés entre eux en étant séparés thermiquement et un séparateur de liquide (24), destiné à séparer le liquide du flux de gaz (25), qui est disposé en aval du bloc de refroidisseur (23) par rapport à un sens d'écoulement du flux de gaz (25) ; le séparateur de liquide (24) comporte au moins une structure de fibres de séparation (36) stabilisée mécaniquement qui peut être traversée par le flux de gaz (25) et qui reçoit et dérive le liquide provenant du flux de gaz (25). En outre, l'invention concerne un véhicule automobile équipé d'un tel refroidisseur, et l'utilisation d'un tel refroidisseur dans un système de recirculation de gaz d'échappement (6) pour refroidir les gaz d'échappement en recirculation.
PCT/EP2015/066201 2014-08-06 2015-07-15 Refroidisseur équipé d'un séparateur de liquide WO2016020163A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014215559.2 2014-08-06
DE102014215559.2A DE102014215559A1 (de) 2014-08-06 2014-08-06 Kühler mit einem Flüssigkeitsabscheider

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WO2016020163A1 true WO2016020163A1 (fr) 2016-02-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10989452B2 (en) 2018-01-03 2021-04-27 Carrier Corporation Channeled condenser ballast

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616610A1 (fr) * 2004-07-13 2006-01-18 Byeong-Seung Lee Echangeur de chaleur à plaques avec dispositif d'évacuation de condensat et son procédé de fabrication
FR2925351A1 (fr) * 2007-12-20 2009-06-26 Valeo Systemes Thermiques Module de filtrage de produits de condensation pour echangeur de chaleur et ensemble forme par un echangeur de chaleur et son module de filtrage.
WO2010128993A1 (fr) * 2009-05-06 2010-11-11 Api Heat Transfer Inc. Séparateur d'eau et système
DE102012208100A1 (de) * 2012-05-15 2013-11-21 Behr Gmbh & Co. Kg Abgaswärmeübertrager

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Publication number Priority date Publication date Assignee Title
DE19737545A1 (de) * 1997-08-28 1999-03-04 Bosch Gmbh Robert Ansaugeinrichtung, insbesondere für Brennkraftmaschinen in Kraftfahrzeugen
DE102010041982A1 (de) * 2010-10-05 2012-04-05 Mahle International Gmbh Abgasrückführfilter, Brennkraftmaschine
DE102013203963A1 (de) * 2013-03-08 2014-09-11 Mahle International Gmbh Kühler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616610A1 (fr) * 2004-07-13 2006-01-18 Byeong-Seung Lee Echangeur de chaleur à plaques avec dispositif d'évacuation de condensat et son procédé de fabrication
FR2925351A1 (fr) * 2007-12-20 2009-06-26 Valeo Systemes Thermiques Module de filtrage de produits de condensation pour echangeur de chaleur et ensemble forme par un echangeur de chaleur et son module de filtrage.
WO2010128993A1 (fr) * 2009-05-06 2010-11-11 Api Heat Transfer Inc. Séparateur d'eau et système
DE102012208100A1 (de) * 2012-05-15 2013-11-21 Behr Gmbh & Co. Kg Abgaswärmeübertrager

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10989452B2 (en) 2018-01-03 2021-04-27 Carrier Corporation Channeled condenser ballast

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