CN113351830A - 用于车辆加热器的金属铸造式热交换器壳体的制造方法 - Google Patents

用于车辆加热器的金属铸造式热交换器壳体的制造方法 Download PDF

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CN113351830A
CN113351830A CN202110243835.XA CN202110243835A CN113351830A CN 113351830 A CN113351830 A CN 113351830A CN 202110243835 A CN202110243835 A CN 202110243835A CN 113351830 A CN113351830 A CN 113351830A
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A·科尔默
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Eberspecher Climate Control Systems Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • B60H1/2209—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners arrangements of burners for heating an intermediate liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/082—Sprues, pouring cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • B60H1/2212—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners arrangements of burners for heating air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F23L15/00—Heating of air supplied for combustion
    • F23L15/04—Arrangements of recuperators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H2001/2268—Constructional features
    • B60H2001/2271—Heat exchangers, burners, ignition devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/14—Vehicle heating, the heat being derived otherwise than from the propulsion plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0429—For vehicles
    • F24H3/0435—Structures comprising heat spreading elements in the form of fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/065—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091—Radiators
    • F28D2021/0096—Radiators for space heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/10—Secondary fins, e.g. projections or recesses on main fins
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Abstract

本发明涉及一种用于车辆加热器的金属铸造式热交换器壳体(12)的制造方法，所述金属铸造式热交换器壳体具有沿壳体纵轴线(L)的方向纵长延伸的罐状的壳体壁(14)和多个在所述壳体壁(14)的外侧上、在所述壳体壁(14)的周壁(16)的区域中和底壁(18)的区域中沿壳体纵轴线(L)的方向延伸的传热肋片(22)，在所述方法中，浇口横截面包括所述传热肋片(22)的至少一部分。本发明还涉及一种用于车辆加热器的金属铸造式热交换器壳体。

Description

用于车辆加热器的金属铸造式热交换器壳体的制造方法
技术领域
本发明涉及一种用于车辆加热器的金属铸造式热交换器壳体的制造方法。
背景技术
这种金属铸造式热交换器壳体包括沿壳体纵轴线的方向纵长延伸的罐状的壳体壁。为了能在所述壳体壁的外侧处将热传递该所述壳体壁周围流动的介质(例如要引入到车辆中的空气)，在所述热交换器壳体的外侧上设置有传热肋片，所述传热肋片不仅在所述罐状的壳体壁的周壁的区域中延伸，而且在所述壳体壁的例如截球面状地构造的底壁的区域中延伸。
发明内容
本发明的目的是，提出一种用于车辆加热器的金属铸造式热交换器壳体的制造方法，利用所述方法可快速且精确地实施金属铸造加工过程以便制造在流体技术上有利的热交换器壳体。
根据本发明，所述目的通过一种用于车辆加热器的金属铸造式热交换器壳体的制造方法来实现，所述金属铸造式热交换器壳体具有沿壳体纵轴线的方向纵长延伸的罐状的壳体壁和多个在所述壳体壁的外侧上、在所述壳体壁的周壁的区域中和底壁的区域中沿壳体纵轴线的方向延伸的传热肋片，在所述方法中，浇口横截面包括所述传热肋片的至少一部分。
所述浇口横截面是在铸模中设置的开口的横截面，液态的金属材料通过所述开口注入到为了制造所述热交换器壳体而使用的铸模中。
为了能将热的、液态的金属材料尽可能快速地注入到模具中并因此能以液态的金属材料完全地且均匀地填充所有的模具空腔，需要提供足够大的浇口横截面。由于根据本发明的原理，这种浇口横截面延伸直至传热肋片的区域中，所以也可使用传热肋片横截面的至少一部分用于引入液态的金属材料。
为了能提供足够大的浇口横截面，进一步提出：所述浇口横截面包括中央浇口通道以及从所述中央浇口通道出发的多个对角肋片。因为根据本发明的原理，所述浇口横截面也包括所述传热肋片的部分或者说延伸到所述传热肋片的区域中，故可减小所述浇口横截面的要在所述中央浇口通道的区域中提供的部分或所述横截面的要在所述对角肋片的区域中提供的部分。
例如可规定：四个对角肋片从所述中央浇口通道出发延伸。在此，各两个对角肋片可分别背离所述中央浇口通道彼此直径相对地延伸或/和沿周向彼此直接相邻的对角肋片可基本上彼此正交地设置。
为了实现使提供整个浇口横截面的、不同的横截面份额相结合，在所述浇口横截面的区域中，所述传热肋片的至少一部分可从所述中央浇口通道出发延伸，或/和在所述浇口横截面的区域中，所述传热肋片的至少一部分可从所述对角肋片出发延伸。
为了能提供大的表面用于将热传递给在所述热交换器壳体周围流动的介质，提出：所述传热肋片以多个传热肋片组的形式设置，其中，每个传热肋片组中的传热肋片基本上彼此平行地设置。
在实施了金属铸造加工过程并且在金属材料冷却之后，可将浇口从所述热交换器壳体分离为，使得形成所述热交换器壳体的轴向端面，所述轴向端面与壳体纵轴线基本上正交并且延伸到所述传热肋片的至少一部分的区域中。特别是在此也可规定：在分离所述浇口的情况下所述轴向端面形成为延伸到所述对角肋片中。
在分离所述浇口的情况下，所述轴向端面可形成具有中央凸头的端面区域或/和具有所述对角肋片的端面区域。
此外，在分离所述浇口的情况下，所述轴向端面可形成具有如下端面，所述端面延伸到由基本上彼此平行地延伸的传热肋片形成的组的传热肋片中。
本发明还涉及一种用于车辆加热器的金属铸造式热交换器壳体，所述金属铸造式热交换器壳体可例如利用根据本发明的方法来制造。这种金属铸造式热交换器壳体包括沿壳体纵轴线的方向纵长延伸的罐状的壳体壁和多个在所述壳体壁的外侧上、在所述壳体壁的周壁的区域中和底壁的区域中沿壳体纵轴线的方向延伸的传热肋片，其中，所述热交换器壳体的通过分离金属材料形成的、与壳体纵轴线基本上正交的轴向端面延伸到所述传热肋片的至少一部分的区域中。
对角肋片可从中央凸头向径向外部延伸，所述中央凸头与壳体纵轴线基本上同轴地从所述底壁延伸，并且通过分离金属材料形成的所述轴向端面可延伸到所述对角肋片的区域中。
附图说明
下面参考附图详细地描述本发明。图中：
图1示出用于以燃料运行的车辆加热器的金属铸造式热交换器壳体的立体图；
图2示出图1的金属铸造式热交换器壳体，所述金属铸造式热交换器壳体具有在金属铸造加工过程中形成的、并且要从热交换器壳体分离的浇口；
图3示出沿图1中观察方向III的图1的金属铸造式热交换器壳体；
图4示出图1的热交换器壳体在车辆加热器的壳体中的局部-纵剖视图；
图5示出设置在壳体中的热交换器壳体沿图4中观察方向V的轴向视图。
具体实施方式
在各附图中示出的、构造为金属铸件的热交换器壳体12构造有罐状的壳体壁14。罐状的壳体壁14包括沿壳体纵轴线L的方向纵长延伸的周壁16和在轴向端部区域中的球冠状或者说截球面状地构成的底壁18。在壳体壁14的内侧上设置有沿壳体纵轴线L的方向延伸的传热肋片20，所述传热肋片从在热交换器壳体12的内部中流动的废气接收热。在壳体壁14的外侧上设置有另外的传热肋片22，可经由所述另外的传热肋片将热传递给在热交换器壳体12周围流动的介质(即例如要引入到车辆内部空间中的空气)。所述空气在接收热交换器壳体12并且例如由塑料材料构成的壳体24的内部中流动，并在出口26中离开所述壳体，所述出口以衔接所述热交换器壳体12的底壁18的方式形成。
设置在热交换器壳体12的或者说壳体壁14的外侧上的传热肋片22以沿周向彼此相继的总共四个组28、30、32、34的形式设置。在这些组28、30、32、34中的每个组中，与这些组28、30、32、34相配属的传热肋片22以沿着壳体纵轴线L延伸并彼此平行地延伸的方式设置。彼此直接相邻的组28、30、32、34的传热肋片22彼此大致正交地设置，从而彼此直径地相对置的组的传热肋片22基本上彼此平行地设置。
为了获得这种结构，至少在底壁18的外侧的区域中设置有对角肋片36、38、40、42。这些对角肋片从底壁18出发沿壳体纵轴线L的方向轴向地延伸并且从中央凸头44出发向径向外部延伸，所述中央凸头与壳体纵轴线L基本上同心地延伸并且背离底壁18延伸。彼此直接相邻的对角肋片36、38、40、42围成例如约90°的角度。关于壳体纵轴线L彼此直径地相对置的对角肋片36、38、40、42基本上彼此平行地延伸。
图3清楚地示出，在四个传热肋片组28、30、32、34中的每个组中都有所述传热肋片22中的一部分从对角肋片36、38、40、42出发延伸。所述传热肋片22中的一部分、特别是每个组28、30、32、34中相应的中央传热肋片从中央凸头44出发延伸。
在使用铸模的金属铸造加工过程中制造作为金属铸造构件的热交换器壳体12。为了能将热的、液态的金属材料注入到铸模中，在铸模的位于底壁18附近的或与底壁相对置的区域中提供具有浇口横截面的浇注开口。所述浇口横截面必须具有确定的最小尺寸，以便能使得热的且液态的金属材料(通常是液化的铝或铝合金)可快速地注入到铸模中并在铸模中完全地分布，使得无空腔残留。在注入的金属材料冷却之后保留有图2中示出的坯件，所述坯件一方面包括热交换器壳体12并且另一方面包括大体以45标记的浇口。
在根据本发明的方法中使得浇口横截面延伸直至传热肋片或一些传热肋片42的区域中。由此，浇口45具有与传热肋片22相应的或者说连接到所述传热肋片上的肋片区段46。为了获得这种结构，用于注入金属材料的、在铸模中形成的通道或者说在铸模中形成的开口可构造有朝向铸模的空腔的方向扩宽的开口横截面，所述铸模的空腔接收液态的金属材料并且基本上是热交换器壳体12的阴模(Negativ)。在金属材料冷却之后，通过切割过程(例如通过锯切)将浇口45与热交换器壳体12分离，从而保留热交换器壳体12的轴向端面48，所述轴向端面在图3中由以点划线标示的圆K勾勒出。为此，在与壳体纵轴线L基本上正交的平面E内将浇口45分离，如图2中所示。这种与壳体纵轴线L大致正交的轴向端面48一方面包括中央凸头44的端面区域50，并且另一方面包括对角肋片36、38、40、42的端面区域52以及设置在热交换器壳体12的外侧上的传热肋片22的端面54。这种轴向端面48基本上也相应于设置在铸模中的浇口横截面，所述浇口横截面也可以例如是在铸模中的将金属材料引导到铸模空腔中的开口的最大横截面。
因为在要根据本发明实施的方法中，浇口横截面延伸直至传热肋片22的区域中，故可提供相对大的总横截面用于注入液态的金属材料，无须提供具有过大横截面的中央凸头44或者说无须提供为了形成中央凸头44而要设置的具有过大横截面的中央浇口通道，并且无须提供具有过大横截面的对角肋片36、38、40、42。因此，获得相对细的结构，所述结构仅以低的流动阻力迎向在热交换器壳体12的外侧处流动的介质。特别是，在出口26的区域中，由于中央凸头44的横截面相对小和对角肋片36、38、40、42的横截面相对小，因此对于要加热的介质而言确保大的用于流通的横截面。同时，确保将热的、液态的金属材料以分布到图3中可见的轴向端面48上的方式均匀地引入到铸模中，从而金属材料也可更均匀地且更快速地分布在铸模的内部中。

Claims (11)

1.用于车辆加热器的金属铸造式热交换器壳体(12)的制造方法，所述金属铸造式热交换器壳体具有沿壳体纵轴线(L)的方向纵长延伸的罐状的壳体壁(14)和多个在所述壳体壁(14)的外侧上、在所述壳体壁(14)的周壁(16)的区域中和底壁(18)的区域中沿壳体纵轴线(L)的方向延伸的传热肋片(22)，在所述方法中，浇口横截面包括所述传热肋片(22)的至少一部分。
2.根据权利要求1所述的方法，其特征在于，所述浇口横截面包括中央浇口通道以及从所述中央浇口通道出发的多个对角肋片(36、38、40、42)。
3.根据权利要求2所述的方法，其特征在于，四个对角肋片(36、38、40、42)从所述中央浇口通道出发延伸，优选地，各两个对角肋片(36、38、40、42)分别背离所述中央浇口通道彼此直径相对地延伸或/和沿周向彼此直接相邻的对角肋片(36、38、40、42)基本上彼此正交地设置。
4.根据权利要求2或3所述的方法，其特征在于，在所述浇口横截面的区域中，所述传热肋片(22)的至少一部分从所述中央浇口通道出发延伸，或/和在所述浇口横截面的区域中，所述传热肋片(22)的至少一部分从所述对角肋片(36、38、40、42)出发延伸。
5.根据前述权利要求中任一项所述的方法，其特征在于，所述传热肋片(22)以多个传热肋片(22)组(28、30、32、34)的形式设置，每个传热肋片(22)组(28、30、32、34)中的传热肋片(22)基本上彼此平行地设置。
6.根据前述权利要求中任一项所述的方法，其特征在于，在实施了金属铸造加工过程并且在金属材料冷却之后，将浇口(45)从所述热交换器壳体(12)分离为，使得形成所述热交换器壳体(12)的轴向端面(48)，所述轴向端面与壳体纵轴线(L)基本上正交并且延伸到所述传热肋片(22)的至少一部分的区域中。
7.根据权利要求2和权利要求6所述的方法，其特征在于，在分离所述浇口(45)的情况下所述轴向端面(48)形成为延伸到所述对角肋片(36、38、40、42)中。
8.根据权利要求7所述的方法，其特征在于，在分离所述浇口(45)的情况下，所述轴向端面(48)形成具有中央凸头(44)的端面区域(50)或/和具有所述对角肋片(36、38、40、42)的端面区域(52)。
9.根据权利要求5和权利要求6、7或8所述的方法，其特征在于，在分离所述浇口(45)的情况下，所述轴向端面(48)形成具有端面(54)，所述端面延伸到由基本上彼此平行地延伸的传热肋片(22)形成的组(28、30、32、34)的传热肋片(22)中。
10.用于车辆加热器的金属铸造式热交换器壳体，所述金属铸造式热交换器壳体包括沿壳体纵轴线(L)的方向纵长延伸的罐状的壳体壁(14)和多个在所述壳体壁(14)的外侧上、在所述壳体壁(14)的周壁(16)的区域中和底壁(18)的区域中沿壳体纵轴线(L)的方向延伸的传热肋片(22)，所述热交换器壳体(12)的通过分离金属材料形成的、与壳体纵轴线(L)基本上正交的轴向端面(48)延伸到所述传热肋片(22)的至少一部分的区域中。
11.根据权利要求10所述的金属铸造式热交换器壳体，其特征在于，对角肋片(36、38、40、42)从中央凸头(44)向径向外部延伸，所述中央凸头与壳体纵轴线(L)基本上同轴地从所述底壁(18)延伸，并且通过分离金属材料形成的所述轴向端面(48)延伸到所述对角肋片(36、38、40、42)的区域中。
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