• 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:
    Said heat exchanger (10) is provided with a housing (11) composed of a plurality of flattened elements (16, 18), an inlet (12) and an outlet (14) being formed in different flattened elements. Said inlet (12) and / or said outlet (14) is (are) provided in a protruding region (21) of said flattened elements whose extent has, along said housing (11), a component perpendicular to a straight line connecting said inlet (12) and said outlet (14).
    公开号:FR3073042A1
    申请号:FR1859632
    申请日:2018-10-18
    公开日:2019-05-03
    发明作者:Petr Fabian；Jan Povysil；Sopuch Martin
    申请人:Hanon Systems Corp；
    IPC主号:
    专利说明:

    Description
    Title of the invention: Heat exchanger for internal combustion engines ^ The present invention relates to a heat exchanger for internal combustion engines.
    In the field of automotive techniques, it is known to use intercoolers assigned to the cooling of a gas supplied to the internal combustion engine, in order to cool the air supplied to this engine. To achieve this cooling, use is made of a heat exchanger in which the air can be cooled by means of a cooling fluid. Corresponding heat exchangers are described, for example, in the documents DE 10 2009 053884 A1, US 2012/0292002 A1, US 2008/0289833 A1, US 2009/0056922 A1, US 2010/0089548 A1, US 2006/0048759 A1, WO 2016/008854 A1, FR 2 968 753 B1, US 2013/0192803 A1,
    US 2013/0146267 A1, JP 5856068 B2 and JP 5856067 B2.
    In the aforementioned document DE 10 2009 053884 A1, such a heat exchanger is provided with connections assigned to the supply of a cooling fluid. These connections open into a housing, on the outside of which protruding regions are provided. Said housing consists, in essence, of two profiled sheet metal parts which are assembled, the two fittings, and the associated protruding regions, being formed in the same piece of profiled sheet.
    The attention of the applicants of this application has been drawn to the fact that such a structural arrangement of the heat exchanger only makes it difficult to adapt said exchanger to different circumstances. It was simultaneously noted that, in the prior art as described for example in document US 2009/0056922 A1, the efficiency and the longevity of the exchanger are reduced following the need to provide a separate structural element dedicated to the propagation of the coolant, while it would also be desirable, at the same time, to reduce the consumption of material.
    Description of the invention The present invention aims to alleviate, at least in part, the drawbacks pointed out above.
    According to the invention, a heat exchanger, dedicated to internal combustion engines and designed to cool air by means of a cooling fluid, is equipped with a housing. This housing comprises, in its internal space, conduits which are assigned to the channeling of the air to be cooled, and run through said housing. The above-mentioned coolant can typically consist of a coolant, for example water. However, other fluids can also be used. The conduits, used to channel the air to be cooled, are physically separated from the area which can be traversed by the cooling fluid, so that said fluid and the air to be cooled do not mix. According to the invention, the housing has an inlet and an outlet which are intended for said cooling fluid and by means of which the latter can enter and leave said housing.
    The housing is provided with several flattened elements which constitute said housing, the inlet and outlet, intended for the cooling fluid, being formed in different flattened elements. These flattened elements appear as the structural elements of the heat exchanger which form said housing. These flattened elements are typically formed by metal plates which can be connected to each other by hard brazing, respectively by soft brazing.
    According to the invention, the inlet and / or the outlet is (are) provided (s) in a protruding region of the flattened elements. This protruding region is directed outward. The protruding region (s) present (s), along said housing, an extension or extension which offers a component perpendicular to a straight line connecting said inlet and said outlet. Said extent takes the form of a straight line which extends along the protruding region, and runs along the coast in maximum length of said region. In other words, the extent of said region runs along the direction of its maximum length. When the protruding region is composed not of a single rectilinear element, but of several substantially rectilinear elements, it may have directions of different extent in each of the individual elements. In such a case, it suffices that one of said elements extends along the aforementioned direction.
    The protruding region, in which the inlet and / or outlet is (are) provided, is used to allow a distribution of the coolant. This avoids the need to provide a separate device, dedicated to the distribution of said fluid. As already mentioned above, this results in a less complicated structural organization of the heat exchanger, thus avoiding the drawbacks noted in this regard. Material costs can, in particular, be lowered as a result of fewer structural elements produced, implying less material consumption. Furthermore, it has been found that corresponding heat exchangers are advantageous for long and narrow spaces in which they must be integrated, and that they are also relatively light with regard to their heat exchange efficiency. The cooling power is increased thanks to the good and regular distribution of the cooling fluid resulting from the arrangement of the protruding regions. In addition, a regular distribution of said fluid prevents it from coming to rest in specific areas, or moving only very slowly. Such stagnation would imply the risk of a boiling of the coolant in these areas (in the case where it is a liquid), which could in turn result in deterioration and by a drop in yield.
    In the prior art, unlike the present invention, the coolant is distributed via a separate distributor, while it can be waived at the present time.
    In the present case, preferably, the direction of the aforementioned extent or extension is entirely perpendicular to a direction in which the conduits assigned to the ducting of the air to be cooled extend. This results in an efficient distribution of the cooling fluid with respect to said conduits, so that the latter can be better cooled.
    The fact that the inlet and outlet are arranged in different flattened elements allows easy adaptation of the heat exchanger to different requirements in the sense that, for example, only one of said flattened elements requires replacement .
    Preferably, the conduits open into the bottom plates of the heat exchanger, and the inlet and / or outlet, intended (s) for the cooling fluid, is (are) provided (s) in a flattened element in one piece with the associated bottom plate. By the expression “bottom plate”, it is therefore appropriate to understand a plate through which air can flow into the conduits assigned to the channeling of this air to be cooled, that is to say that it is provided with orifices which coincide with corresponding orifices made in the bottom plates, to which they are connected. Because the inlet and / or outlet is (are) formed in a flattened element with an associated bottom plate, a corresponding heat exchanger can be easily manufactured, and is less complex. This governs reduced production costs.
    Preferably, the bottom plate, and the structural element of the flattened element in which the inlet or outlet opens, are essentially mutually perpendicular. A corresponding heat exchanger can be produced economically.
    Preferably, moreover, the flattened element of the bottom plate is further provided with structural surround elements which are bordering on said bottom plate, these structural surround elements then surrounding said plate background in association with the structural element into which the inlet or outlet leads. These additional surrounding elements give the flattened element of said bottom plate the overall configuration of an apron which can correspondingly lighten the structure and facilitate the construction of the heat exchanger, which is in turn reflected in reduced costs.
    The flattened element, in which the inlet and / or outlet is (are) provided (s), preferably overlaps with another flattened element of the housing, so that said other flattened element delimits, by part, the cavity formed by the protruding region. This overlapping zone makes it possible to control the output flow of the cooling fluid leaving said cavity, since the size of the overlap can be chosen as desired at the stage of manufacturing the heat exchanger. This results in an improved adaptability of said exchanger to variable circumstances.
    Preferably, the housing essentially takes the form of a parallelepiped, the inlet and the outlet being formed in the same side of said parallelepiped. Because said inlet and said outlet are provided on the same side, a heat exchanger of this type can be mounted with small bulk and with ease.
    Preferably, moreover, at least one, preferably the two protruding regions is (are) configured (s) in L. A corresponding embodiment of said protruding regions allows good distribution of the cooling fluid. However, other configurations can also provide corresponding advantages.
    Brief description of the drawings [0021] Figure 1 is a perspective view of a heat exchanger according to a first embodiment of the invention;
    Figures 2 (a) and 2 (b) are exploded illustrations of the heat exchanger according to Figure 1;
    Figure 3 shows, by comparison, an influx area according to the prior art;
    Figure 4 illustrates a principle of operation of an influx zone according to the first embodiment;
    Figures 5 (a), 5 (b) and 5 (c) show a second embodiment of the invention;
    Figures 6 (a), 6 (b) and 6 (c) show a third embodiment of the invention;
    Figure 7 illustrates a fourth embodiment of the invention; and Figure 8 shows a fifth embodiment of the invention.
    Figure 1 is a perspective view of a heat exchanger 10 according to a first embodiment of the invention. Figure 2a is an exploded illustration of the exchanger according to Figure 1, while Figure 2b shows said exchanger in different views.
    The heat exchanger 10 comprises a housing 11 traversed by conduits 25 assigned to the channeling of the air to be cooled. These conduits end in bottom plates 24 forming an interface with the space surrounding the exchanger. Said plates 24 are provided on the inlet side and on the outlet side of said conduits and constitute, in association with side plates 16, a lower plate 30 and an upper plate 18, the housing 11 taking the form of a parallelepiped. In the context of the present invention, the side plates 16, the lower plate 30, the upper plate 18 and the bottom plates 24 are designated by “flattened elements”. The conduits 25 contain strips 25 ’made of a metallic material and increasing the thermal conduction. The latter extend between the walls of said conduits 25.
    The side plates 16 have a simple rectangular shape, while the bottom plate 30 takes the form of a rectangle with projecting side edges which overlap with said side plates 16.
    The lower plate 30 and the side plates 16 are connected at the level of these overlapping zones. The upper plate 18 has essentially an H configuration and is connected to the side plates 16 on its longitudinal sides. Elements 20 of the bottom plate 24 are put in place at the openings of the H, and are connected to said upper plate 18. These elements 20 are provided, in each case, with a protruding region 21 extending perpendicularly to the direction of the extent of the conduits 25 assigned to the channeling of the air to be cooled.
    An inlet 12 and an outlet 14, dedicated to the cooling fluid (water, for example), are respectively provided in these protruding regions 21. The cooling fluid enters through the inlet 12 and propagates in the region 21, perpendicular to the direction of circulation of the ducted air to be cooled, while simultaneously flowing between the tubular conduits, in the direction of the bottom plate 30. Said fluid then leaves the heat exchanger 10 again passing through the outlet 14 provided in said region 21. Respective adapters 26 and 28 are further provided, at the inlet and outlet dedicated to the air to be cooled, for connection with the coolant inlet. .
    As shown in an observation of Figure 4, an overlap a is established between the upper plate 18 and the cavity defined by the protruding region 21. This overlap allows to control the surface through which the fluid cooling can come out. Said fluid must then flow, as illustrated by a dotted line in FIG. 4. Since said overlap a can be modified in a simple manner, a corresponding heat exchanger can be easily adapted to different applications. This differs from the example according to the prior art which is represented in FIG. 3, and in which such a variable adaptation is not possible. In this case, the cooling fluid flows through an inlet 12 'into the cavity delimited by a protruding region 21'.
    A second embodiment of the invention is now described with reference to Figures 5a to 5c. The essential difference, compared to the first embodiment, then consists in that a bottom plate 124 is provided with additional structural elements 120 ′ which, in association with a structural element 120, surround said bottom plate 124 through the way of an apron. The remaining structural elements of a housing 111 can be inserted into this deck, which stabilizes these structural elements. Such a parallelepipedic housing 111 can, in this way, be made more easily. On the sides surrounding said bottom plate 124 and bordering on a protruding region 121, the structural element 120 ’is made lower than on other sides. Because experience has shown that the acting forces are relatively modest in these areas, material can be saved without affecting the stability of a heat exchanger 110. The structural arrangement of the housing is for the rest identical, apart from the differences noted. In FIGS. 5a and 5b, the references 126 and 128 designate corresponding adapters, just as 112 and 114 relate to a corresponding inlet and outlet.
    A third embodiment of the invention is described with reference to Figures 6a to 6c. In this case, it is a variant of the second embodiment illustrated in FIGS. 5a and 5b. While, in this second embodiment, the additional structural elements 120 ′ extended with variable height relative to the bottom plate 124, corresponding structural elements 220 ′ have a constant height relative to a bottom plate 224 in the third embodiment. Such a structural arrangement of a flattened element 220 results in increased stability of a heat exchanger 210, since there are no variations in height. In this embodiment, an inlet 212 and an outlet are likewise provided on surfaces of the parallelepiped, respectively in protruding regions 221 which are turned opposite, which decreases the resistance to flow and can therefore , govern a potential increased flow velocity. The cooling efficiency can be improved in this way.
    A fourth embodiment of a heat exchanger 310 according to the invention is described with reference to Figure 7. In this case, within protruding regions 321, there is provided a single protruding region 321 'configured in L. Such a structural arrangement of the protruding region results in a better distribution of the cooling fluid, and therefore in a lower resistance to flow. This proves to be advantageous, in particular, when this protruding region is provided at the level of the inlet intended for said cooling fluid.
    Figure 8 shows a fifth embodiment of the invention. In this case, protruding regions 421 ’of the inlet and outlet are configured in L each time. Such a structural arrangement further decreases the resistance to flow.
    It goes without saying that many modifications can be made to the heat exchanger as described and shown, without departing from the scope of the present invention.]
    权利要求:
    Claims (1)
    [1" id="c-fr-0001]
    Claims [Claim 1] Heat exchanger (10) dedicated to internal combustion engines and designed to cool air by means of a cooling fluid, comprising a housing comprising, in its internal space, ducts (25) which are assigned to the channeling of the air to be cooled, and pass through said housing; and an inlet (12) and an outlet (14) intended for said cooling fluid and arranged in said housing, exchanger characterized in that the housing is provided with several flattened elements (16, 18, 30) which constitute said housing, l the inlet and outlet being provided in different flattened elements; and by the fact that said inlet and optionally, or alternatively, said outlet is (are) provided (s) in a protruding region (21) of said flattened elements, the protruding region (s) having, along said housing, an extension or extension which offers a component perpendicular to a straight line connecting said inlet and said outlet.
    [Claim 2] Heat exchanger according to claim 1, characterized in that the conduits open into bottom plates (24) of said heat exchanger; and by the fact that the inlet and possibly, or as a variant, the outlet intended for the coolant is (are) formed in a flattened element forming a single piece with the associated bottom plate.
    [Claim 3] Heat exchanger according to claim 2, characterized in that the bottom plate, and the structural element of the flattened element in which the inlet or outlet opens, are essentially mutually perpendicular.
    [Claim 4] Heat exchanger according to claim 3, characterized in that the flattened element of the bottom plate further comprises structural surrounding elements (120 ') which are adjacent to said bottom plate ( 124); and by the fact that these surrounding structural elements surround said bottom plate in association with the structural element (120) in which the inlet or outlet opens.
    [Claim 5] Heat exchanger according to any one of the preceding claims, characterized in that the flattened element (20), in which the inlet and optionally, or alternatively, the outlet is (are) provided (s) ), overlaps with another flattened element (18) of the housing, so that said other flattened element (18) delimits, in part, the cavity formed by the protruding region (21).
    [Claim 6] Heat exchanger according to any one of the preceding claims, characterized in that the housing essentially takes the form of a parallelepiped; and by the fact that the inlet and outlet are provided on the same side of said parallelepiped.
    [Claim 7] Heat exchanger according to any one of the preceding claims, characterized in that one, preferably the two protruding regions (32T) is (are) configured (s) in L.
    类似技术:
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    同族专利:
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    FR3073042B1|2021-01-08|
    US20190162489A1|2019-05-30|
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    法律状态:
    2019-09-11| PLFP| Fee payment|Year of fee payment: 2 |
    2020-05-29| PLSC| Search report ready|Effective date: 20200529 |
    2020-10-22| PLFP| Fee payment|Year of fee payment: 3 |
    2021-09-15| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017219433.2A|DE102017219433A1|2017-10-30|2017-10-30|Heat exchanger for an internal combustion engine|
    DE1020172194332|2017-10-30|
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