• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    ll Abstract lnvention regards a charge air cooler tank (130) with an integrated protectivestructure (23), said charge air cooler tank comprising a first section (25) and asecond section (27) being attached to the first section, the second section beingsubstantiaiiy elbow-shaped. The charge air cooler tank further comprises amounting unit (21) for a vehicle component, said mounting unit being integrallyprovided on an outer wall of the second section (27) and delimiting a portion of thesecond section. The structure (23) comprising a first face (23A) facing the firstsection and a second face being opposite to the first face, said structure (23)being with at least one of its sides integrally attached to an inner wall of thecharge air cooler tank (130). The structure (23) extends across the interior of theelbow-shaped second section such that a space (29) is created between thesecond face of the structure and an inner wall of the second sectioncorresponding to the delimited portion of the second section. (Fig. 4)
    公开号:SE1451525A1
    申请号:SE1451525
    申请日:2014-12-11
    公开日:2016-06-12
    发明作者:Jahns Dieter
    申请人:Scania Cv Ab；
    IPC主号:
    专利说明:

    A charge air cooler tank with an integrated protective structure Technical field On a general level, the present invention relates to a charge air cooler tank withan integrated protective structure that enhances thermal management in vehicleswith an internal combustion engine.
    BackgroundThe purpose of a charge air cooler, historically frequently referred to as intercooler, is to increase the efficiency of a turbocharged diesel engine. Abovepurpose is achieved by reducing the temperature of the charged air coming from aturbo aggregate before its entry into the engine. Consequently, the charge aircooler is arranged between the turbo aggregate and the engine.
    The achieved air temperature reduction will increase the density of the charge airleading to improved scavenging, i.e. the process of exhausting the combustedfuel/air mixture out of the engine cylinder and the subsequent intake of freshfuel/air mixture into the cylinder. A further benefit of the increase in air density isthat a greater mass of air may be compressed inside the cylinder so that morefuel can be burned inside the combustion chamber, giving more power.
    The charge air cooler works on the principle of heat exchange. Coolers for use inautomotive applications are typically air-to-air heat exchangers and are frequentlypurposefully placed at the very front of the vehicle, just behind the grille.Structurally, the cooler of this type typically comprises a charge air cooler tank atthe inlet side. The tank comprises a first segment being fluidically coupled to afluid line emanating from the turbo aggregate and a second segment beingfluidically coupled to the charge air cooler itself. A corresponding tank is alsolocated at the outlet side of the charge air cooler.
    Moreover, a plurality of air conduits, optionally provided with exterior fins, extendsbetween these peripherally positioned tanks and is externally exposed to ambientair. The pressure difference present between the turbo aggregate and the engine 2 inlet forces the hot air of the inlet tank to flow through the fluid conduits and reachthe outlet tank. ln this process, the heat is transferred from the hot air to theconduits, typically made in metal with high heat conductivity, such as aluminum.Thus heated conduits are cooled by the freely flowing ambient air. At the sametime, the temperature of the hot air is reduced. Typically, the above describedprocess brings down air temperature from 200 °C at the inlet tank of the cooler tonear ambient temperature (40-50 °C) at its outlet tank.
    The charge air cooler can be used as cooling module carrier. The cooling modulecomprises a plurality of different components, such as AC condenser, oil cooler orcooling unit. ln addition, the charge air cooler is used for mounting furthercomponents. Accordingly, the radiator and the AC-condenser are normallyattached to the charge air cooler. ln commercial vehicles, such as trucksbelonging to the state of the art, the charge air cooler is suspended as coolingmodule carrier onto the frame or base bracket by means of suitable mountingdevice.
    More precisely, it is suspended such that the mounting device is arranged inproximity of the inlet/outlet tanks of the charge air cooler. Said mounting devicetypically comprises a rubber bushing arranged in a metal housing that is in directcontact with the exterior of the charge air cooler. As discussed above,temperatures of up to 200 °C arise at the cooler inlet. Hence, the metal housing,but also the rubber bushing, reach elevated temperatures, ranging between 130 -180 °C. Most rubber materials traditionally used aren”t suited for these hightemperatures and will deteriorate due to thermal degradation. One way to preventprohibitive heating of the rubber material would be to arrange an external coolingchannel in immediate proximity of the mounting device. However, this solutionisn”t viable due to the lack of space.
    JP2011-52555 discloses a flow controlling device for the intake manifold of amotor vehicle with the purpose of controlling the mixing location for the EG Ft-gas(EG Ft-Exhaust Gas Ftecirculation) with the temperature of approximately 200 °C 3 and ambient air. The device is structurally complex and comprises shieldingplates anchored in a heat insulating gasket made in poiymer material. A metalgasket is sandwiched between said insulating gasket and a pipe carrying EGR-gas. Accordingly and given its structural complexity, the device is relatively difficultto assemble. The deployment of the device creates an air pocket that thermallyinsulates an inner wall of the intake manifold. Chosen construction, when pairedwith the above-discussed complexity, creates an unstable structure that, whenexposed to customary gas flow rates could start to flutter leading to materialfatigue. Also, wear on the structure is further increased due to the fact that the twogases flowing through the device flow in substantially opposite directions.
    Although described in conjunction with a charge air cooler and thereon suspendedcomponents, it is to be understood that the presented technical problem may alsoarise in connection with other parts of the vehicle where thermal protection is ofinterest, e.g. for vehicle's exhaust system.
    Against the above background, one objective of the present invention is to providea structure permitting reduction of the thermal load on the mounting device usedfor suspension of the vehicle component while adding to the structural stability.
    SummaryThe above stated objective is achieved by means of a charge air cooler tank according to the independent claim.
    Accordingly, the charge air cooler tank comprises a first section, a second sectionbeing attached to the first section, the second section being substantially elbow-shaped. The charge air cooler tank further comprises a mounting unit for a vehiclecomponent, the mounting unit being integrally provided on an outer wall of thesecond section and delimiting a portion of the second section. A structurecomprising a first face facing the first section and a second face being opposite tothe first face is also comprised. The structure is with at least one of its sidesintegrally attached to an inner wall of the charge air cooler inlet tank, and the 4 structure extends across the interior of the elbow-shaped second section suchthat a space is created between the second face of the structure and an inner wallof the second section corresponding to the delimited portion of the secondsection.
    Hereby, the inner wall of the second section corresponding to the delimitedportion of the second section isn't directly exposed to the stream of hot CG Ft-gasflowing through the charge air cooler tank. This entails that less heat is transferredfrom the gas to this region of the inner wall. This, in turn, entails that less heat isconductively transferred through the material of the charge air cooler to theintegrally provided mounting unit. Hence, the temperature increase experiencedby the mounting unit is significantly reduced. Accordingly, temperature of thecharge air cooler tank in the region of the mounting unit is well below 130 °C. Thisalso means that the rubber bushing, arranged so as to be in thermal contact withthe tank in the region of the mounting unit, never becomes exposed toprohibitively high temperatures. ln consequence and knowing that the rubbermaterial used need not withstand particularly high temperatures, a bushing madeof a less advanced, more affordable rubber material may advantageously bechosen. Moreover, the elbow-shaped section is structurally reinforced by thetransversely extending structure. This improves resistance to wear of said sectionand the charge air cooler tank as a whole.
    A second aspect of the present invention relates to a vehicle comprising theclaimed charge air cooler tank.
    Different embodiments of the invention are disclosed in the dependent claims andin the detailed description.
    Brief description of the drawindsFig. 1 is a schematical view from above of a vehicle. 5 Fig. 2 is a perspective exploded view of a charge air cooler with two peripheral mounting devices.
    Fig. 3 is a perspective view of a mounting device suitable for a charge air coolerand/or cooiing module.
    Fig. 4 is a close-up of a segment of a charge air cooler inlet tank showing mounting units.
    Fig. 5 is a cutaway view showing an interior of a segment of a charge air coolerinlet tank comprising a protective structure according to a first embodiment of the present invention.
    Further advantages and features of embodiments will become apparent whenreading the following detailed description in conjunction with the drawings.
    Detailed descriptionThe present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown. Thisinvention may, however, be embodied in many different forms and should not beconstrued as limited to the embodiments set forth herein; rather, theseembodiments are provided so that this disclosure will be thorough and complete,and will fully convey the scope of the invention to those skilled in the art. ln thedrawings, like reference signs refer to like elements.
    Fig. 1 is a schematical view from above of a vehicle 1 suitable for implementationof the present invention. The shown vehicle 1 is a truck or a trailer-hauling tractorhaving a chassis 9 and a front pair of wheels 10A and a rear pair of wheels 10B.The shown vehicle 1 is only an example, why the vehicle of the present inventionmay also be realized as a bus or a thereto similar vehicle. A driver's cab 7 ispositioned far forward on the vehicle 1. A combustion engine 4 is located belowthe driver's cab 7. The vehicle 1 has a charge air cooler 8 that is supported by the 6 chassis 9 and placed at the very front of the vehicle, i.e. behind the grille (notshown). Operation of the charge air cooler 8 is normally controlled by a controlunit 19, schematically shown in Fig. 1.
    Fig. 2 is a perspective exploded view of a charge air cooler 8 with two peripheralmounting devices 11. The devices 11 are fixedly attached to the charge air cooler8 through engagement with mounting units (shown in Fig. 4). The charge aircooler 8 has an inlet 13 respectively an outlet 33 sections comprising a charge aircooler inlet tank/charge air cooler outlet tank. ln particular the inlet tank will bemore thoroughly discussed in connection with Figs. 4 and 5. The two mountingdevices 11 are arranged in connection with the inlet 13 respectively the outlet 33sections. The mounting devices 11 are typically used for suspension of a coolingmodule comprising inter alla cooling unit of the vehicle. An AC-condenser 59 andan oil cooler 57, both to be mounted on the charge air cooler 8, are also shown.
    Fig. 3 is a perspective view of a mounting device 11 suitable for use in connectionwith a charge air cooler (not shown in Fig. 3) operating as a cooling modulecarrier. Shown mounting device 11 is substantially elongate and of complexshape. The device 11 is typically made of a lightweight metal, such as aluminum.lt has a number of through-holes 12 and is also provided with several fittings 14.The trough holes 12 are used to mount the charge air cooler, which is here thecooling module carrier, to frame or base brackets. ln this context, upper section of the mounting device 11 is provided with a largethrough-hole 15 that makes possible engagement with a mounting unit (shownand more thoroughly discussed in Fig. 4). To that purpose, the mounting device11 comprises a bushing 18, i.e. a cylindrically-shaped lining made of rubber. Thebushing 18 is thermally connected with the rest of the mounting device 11. Themounting device 11, in turn, is in direct contact with the material of an inlet (notshown in Fig. 3) respectively an outlet section (not shown in Fig. 3) of the chargeair cooler, the material typically being a metal and preferably aluminum. 7 Fig. 4 is a close-up of a segment of a charge air cooler inlet tank 130 showing amounting unit 21. The inlet tank 130 may be formed in one piece in order tomaximize its structural stability. ln this embodiment, the mounting unit 21comprises a proximal, blind bore 22A and a distal, disc-shaped element 22B withan axial through-hole. Such a construction is suitable for insertion of a mountingdevice 11 described in conjunction with Fig. 2. ln this context, the term distal is tobe construed as situated away from a protective structure (shown in Fig. 5),whereas the term proximal is to be construed as situated next to or nearest thestructure. ln a variant, the engagement of the mounting device 11 and the mounting unit 21is realized by providing the blind bore 22A of the mounting unit 21 with internalthreading. The mounting device 11 is then secured to the mounting unit 21 bymeans of a suitable screw passing through the large through-hole discussed inconnection with Fig. 3.
    Fig. 5 is a cutaway view showing an interior of a segment of a charge air coolerinlet tank 130 comprislng a protective structure 23 according to a first embodimentof the present invention. The inlet tank 130 has a first section 25. The first section25 is substantially straight in this embodiment. The inlet tank 130 furthercomprises a second section 27 being attached to the first section 25. The secondsection 27 is substantially elbow-shaped. A mounting unit 21 for a vehiclecomponent, such as a cooling module, is integrally provided on an outer wall ofthe second section 27. The mounting unit 21 delimits a portion of the secondsection 27. A protective structure 23 is with one of its sides integrally attached toan inner wall of the charge air cooler inlet tank 130. The structure 23 has a firstface 23A facing the first section 25 and a second face (not visible in Fig. 5) beingopposite to the first face 23A. The protective structure 23 extends across theinterior of the elbow-shaped second section 27 such that a space is createdbetween the second face of the structure 23 and an inner wall of the secondsection 27 corresponding to the delimited portion of the second section 27. Thesecond section 27 of Fig 5 is widening, but other shapes are equally conceivable.
    Hereby, the inner wall of the second section 27 isn't directly exposed to thestream of hot CGR-gas to be cooled that flows through the charge air cooler inlettank 130. This entails that less heat is transferred from the gas to this region ofthe inner wall. This, in turn, entails that less heat is conductively transferredthrough the material of the charge air cooler inlet tank 130 to the delimited portionof the second section 27. Here, the unit 21 being integrally provided means thatthe unit 21 and the section of a charge air cooler inlet tank 130 are made, typicallycast, as a single piece. Hence, the temperature increase experienced by themounting unit 21 is significantly reduced. This also means that the rubber bushing(not shown in Fig. 5), arranged so as to, as described in conjunction with Fig. 3,be in thermal contact with the charge air cooler inlet tank 130, never becomesexposed to prohibitively high temperatures. ln consequence and knowing that therubber material used need not withstand particularly high temperatures, a bushingmade of a less advanced, more affordable rubber material may advantageouslybe chosen. ln one embodiment, the delimited portion of the second section 27 iscommensurate with the cylindrical projection of the disc-shaped element 22B ontothe inner wall of the second section 27. ln the embodiment shown in Fig. 4, the protective structure 23 tapers towards itsside with which it is attached to an inner wall of the charge air cooler inlet tank130. ln a further embodiment (not shown), the structure 23 curves in relatively thefirst pipe section. Hereby, the internal pressure loss is kept to a minimum. ln the drawings and specification, there have been disclosed typical preferredembodiments of the invention and, although specific terms are employed, they areused in a generic and descriptive sense only and not for purposes of limitation,the scope of the invention being set forth in the following claims.
    权利要求:
    Claims (11)
    [1] 1.
    [2] 2. A charge air cooler tank (130) comprising: a first section (25), a second section (27) being attached to the first section (25), said secondsection (27) being substantially elbow-shaped, a mounting unit (21) for a vehicle component, said mounting unit (21) beingintegrally provided on an outer wall of the second section (27) anddelimiting a portion of the second section (27), characterized in that a structure (23) comprising a first face (23A) facing the first section (25)and a second face being opposite to the first face (23A), said structure (23)being with at least one of its sides integrally attached to an inner wall of thecharge air cooler tank (13), and said structure (23) extending across theinterior of the elbow-shaped second section (27) such that a space (29) iscreated between the second face of the structure and an inner wall of thesecond section (27) corresponding to the delimited portion of the secondsection (27).
    [3] 3. A charge air cooler tank (130) according to claim 1, wherein said charge aircooler tank (130) is formed in one piece.
    [4] 4. A charge air cooler tank (130) according to any of preceding claims,wherein said charge air cooler tank (13) is made in aluminum.
    [5] 5. A charge air cooler tank (130) according to any of preceding claims,wherein said structure (23) tapers towards its side with which it is attachedto an inner wall of the charge air cooler tank (130).
    [6] 6. A charge air cooler tank (130) according to any of preceding claims,wherein said structure (23) curves in relatively the first section (25).
    [7] 7. . A charge air cooler tank (130) according to any of preceding claims, wherein said mounting unit (21) comprises a proximal blind bore (22A) anda distal disc-shaped element (22B) with an axial through-hole. _ A charge air cooler tank (130) according to claim 6, wherein said blind bore is threaded.
    [8] 8. . A charge air cooler tank (130) according to claim 6 or 7, wherein the delimited portion of the second section (27) is commensurate with thecylindrical projection of the disc-shaped element (22B) onto the inner wallof the second section (27).
    [9] 9. . A charge air cooler tank (130) according to any of preceding claims, wherein said vehicle component is a cooling module.
    [10] 10.A charge air cooler (8) comprising a charge air cooler tank (130) according to any of preceding claims.
    [11] 11.A vehicle (1) comprising a charge air cooler tank (130) according to any of claims 1-9.
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    同族专利:
    公开号 | 公开日
    SE538914C2|2017-02-14|
    DE102015015184A1|2016-06-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP5375448B2|2009-08-31|2013-12-25|アイシン精機株式会社|Intake manifold|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1451525A|SE538914C2|2014-12-11|2014-12-11|A charge air cooler tank with an integrated protective structure|SE1451525A| SE538914C2|2014-12-11|2014-12-11|A charge air cooler tank with an integrated protective structure|
    DE102015015184.3A| DE102015015184A1|2014-12-11|2015-11-25|Intercooler tank with integrated protection structure|
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