EP1700077A1

EP1700077A1 - Structural arrangement for heat-exchanging devices

Info

Publication number: EP1700077A1
Application number: EP04803762A
Authority: EP
Inventors: Gunnar Busse
Original assignee: Behr GmbH and Co KG
Current assignee: Mahle Behr GmbH and Co KG
Priority date: 2003-12-11
Filing date: 2004-12-10
Publication date: 2006-09-13
Also published as: WO2005057116A1; DE102004059680B4; CN1910420B; JP2007514122A; BRPI0416193A; JP4624363B2; US20050236146A1; DE102004059680A1; CN1910420A

Abstract

The invention relates to a structural arrangement for heat-exchanging devices, comprising at least one first device (1) for exchanging heat having: at least one inflow (9) for a first free-flowing medium, a collecting and/or distributing tube (3, 4) for the first free-flowing medium; a multitude of first continuous flow devices (12) for the first free-flowing medium; a collector (5); at least one outlet (8) for the first free-flowing medium, and; at least one second heat-exchanging device (2), which is situated next to the first heat-exchanging device and which has at least one inflow (21) for a second free-flowing medium, a collecting and/or distributing tube for the second free-flowing medium, a multitude of continuous flow devices (24) for the second free-flowing medium and at least one outlet (22) for the second free-flowing medium.

Description

Building regulations for devices for the exchange of heat

The present invention relates to a structural arrangement for devices for exchanging heat, in particular for a motor vehicle.

Various devices for exchanging heat are used in motor vehicles, for example in motor vehicle air conditioning systems, cooling circuits or else circuits for cooling gear oil or power steering oil. When used in motor vehicles, the problem regularly arises that only limited installation space is available, and therefore the individual devices for exchanging heat are to be arranged as space-saving as possible. In addition, increasing value is placed on cost-effective production of the individual components.

The object on which the present invention is based is therefore to create a structural arrangement for devices for exchanging heat which, on the one hand, requires a relatively small amount of space and, on the other hand, is cheaper in terms of production costs.

This is achieved according to the invention by a construction arrangement according to claim 1. Advantageous embodiments and further developments are the subject of the dependent claims. The constructional arrangement according to the invention has at least one first device for exchanging heat, which has at least one inflow for a first flowable medium, a collection and / or distribution pipe for the first flowable medium, a plurality of first flow devices for the first flowable medium, a collection device - hereinafter referred to as a collector - and has at least one drain for the first flowable medium. Furthermore, according to the invention, in addition to the first device for exchanging heat, a second device for exchanging heat is arranged, which has at least one inflow for a second flowable medium, a collecting and / or distribution pipe for the second flowable medium, and a multiplicity of second flow devices for the second flowable medium, and has at least one drain for the second flowable medium. The collecting and / or distribution pipe is preferably an elongated pipe. The second device for exchanging heat can protrude, in particular in the longitudinal direction, beyond the first device for exchanging heat.

The collecting and / or distribution pipe is used to divide the flowable medium into a plurality of the flow-through devices or to collect the flowable medium reaching the collection and / or distribution pipe from the flow-through devices.

For this purpose, the collecting and / or distributing tube has a multiplicity of openings into which the end sections of the throughflow devices can be inserted. The collecting and / or distribution tube has a cross section which is selected from a group of cross sections which contain circular, elliptical, polygonal cross sections and mixed forms thereof.

The flow devices are also elongated tubes, in particular flat tubes. These individual flat tubes can be one or also have several separate flow channels for the flowable medium.

The collector preferably has at least two openings, which serve as inlet and outlet for the flowable medium. In addition, a drying and / or filter device, through which the flowable medium flows, is preferably arranged in the collector. Such a collector is described in German Patent DE 4 238 853 C2. This can be used in particular in the context of the present invention if the first device for exchanging heat is designed as a condenser for the air conditioning system of a motor vehicle. The description of DE 4 238

853 C2, in particular the general description of column 1 line 1 to column 2, line 22, as well as the description of the preferred exemplary embodiments of column 2, line 45 to line 5, line 42 is by this reference included in the disclosure of the present patent application.

Furthermore, the collector used in the context of the present invention can also have the design as also described in EP 0669 506 B2 for the condenser of the air conditioning system of a motor vehicle. Here, too, the general description of column 1, line 1 to column 1, line 48 and the special description of figures in column 2 by line 4 to column 5, line 22 are made the subject of the disclosure of the present patent application, this object is particularly important when a filter device is to be used in the collector.

An arrangement of the second device next to the first device is understood to mean that these are not spatially separated from one another, but are arranged in close proximity to one another and are particularly preferably made in one piece or are held by the same frame elements. The second device for exchange is preferred of heat on its long side on a long side of the first heat exchange device.

The preferred joint production thus integrates the second device for exchanging heat into the first device for exchanging heat. In this way, both devices for exchanging heat can be soldered simultaneously during production, which leads to lower production costs. In addition, space can be saved in the engine compartment through the joint installation.

In a preferred embodiment, at least one collection and / or distribution pipe for the first flowable medium also serves as a collection and / or distribution pipe for the second flowable medium. For this purpose, at least two chambers are provided in the collecting and / or distribution pipe, so that the two media are separated from one another.

This is also to be understood to mean that both the flow devices in which the first flowable medium flows and the flow devices in which the second flowable medium flows open into this at least one collecting and / or distribution pipe. The constructional arrangement preferably has two collecting and / or distribution pipes, both of which each serve to accommodate essentially all of the first and second flow devices. Two collecting and / or distribution pipes are preferably provided, in which both the first flowable medium and the second flowable medium flow in predetermined, separate sections.

The throughflow devices preferably have two end sections, each of which protrudes into a collecting and / or distribution pipe. The respective end sections preferably protrude into two different collecting and / or distribution pipes. However, it is also possible that the end sections in each same Sanπmel- and / or distribution pipe protrude. In this case, a corresponding collecting and / or distributing pipe then preferably has at least one separating device which divides the collecting and / or distributing pipe into a first space in which the first end sections of the throughflow devices protrude, as well as a second space in which the second end portions of the flow devices protrude. In this way, the inflow section and the outflow section of the header and / or distribution pipes can be separated from each other.

In a further preferred embodiment, the plurality of first flow devices are arranged parallel to the plurality of second flow devices. This means that the respective longitudinal directions of the flow-through devices are parallel to one another, and cooling fins or the like are preferably provided between the individual flow-through devices, which improve the heat exchange with the heat exchange medium, in particular air, passing through the flow-through devices. It is possible for the first flow devices to be separated with respect to the second flow devices by interrupting a collecting and distribution pipe.

The first flow devices preferably have essentially the same outer geometric shape as the second flow devices. In this way, the production can be simplified since no different types of flow devices or flow devices have to be manufactured. However, it can also be advantageous if the first flow devices have a different external geometric shape than the second flow devices.

The inner geometric design of the first throughflow devices and the second throughflow devices can preferably also be configured identically. In particular, however, if the viscosity of the first flowable medium differs significantly from that of the second flowable medium, the inner geometric shape is chosen differently.

The flow-through devices then have one or more parallel flow paths, each of which has a round, a rectangular or a triangular cross section. The respective cross-sectional shape can be made geometrically relatively exact, but it is also possible within the scope of the invention, particularly when using a rectangular or triangular cross-section, to make the transition areas rounded, in particular concave.

The hydraulic diameters of the individual flow cross sections are preferably in a range from 0.3 mm to 10 mm. The hydraulic diameter is determined by a formula in which the cross-sectional area of the tube is multiplied by 4 and then determined by the wetted circumference of the tube.

The first flowable medium is preferably a refrigerant in the air conditioning system of a motor vehicle. In this case, the first heat exchanger is designed as a condenser. It is further preferred that the first flowable medium is a coolant. In this case, the first device for exchanging heat is preferably designed as a radiator of a motor vehicle, by means of which the cooling water flowing through the motor of the vehicle is cooled.

In the case of the first device for exchanging heat, the hydraulic diameter is preferably between 0.4 mm and 4 mm, particularly preferably between 0.4 and 1.3 mm. The second flowable medium is preferably an operating fluid of a motor vehicle, which is preferably taken from a group, which engine oils for lubricating an internal combustion engine, gear oils for lubricating an automatic or a manual gear, gear oils which are provided for lubricating a differential by which the driving torque of an engine is distributed to the driven wheels (this differential can be a single differential in a single driven axle as well as the distribution differentials in a four-wheel drive vehicle) and the like. Operating fluids such as power steering oil, brake fluid or hydraulic oil for operating bodies of a commercial vehicle are also suitable as a second flowable medium.

In the case of the second device for exchanging heat, which serves to cool the operating fluid of the vehicle, the hydraulic diameter is preferably between 0.3 mm and 10 mm, particularly preferably between 0.4 mm and 8 mm.

Preferably, the tube wall of the oil cooler, i.e. the second device for exchanging heat, a thickness between 0.2 and 1.5 mm, preferably between 0.35 and 1.0 mm.

Since the transmission oil cooler and the condenser operate under different conditions, in particular different temperatures or temperature differences, thermal stresses would result in the intermediate area between the oil cooler and the condenser. For example, the condenser remains cold in winter because the vehicle air conditioning system is not in operation. Nevertheless, the oil cooler experiences heating and cooling when the vehicle is first driven and then parked. The tube of the oil cooler expands and contracts again while the tube of the condenser remains unchanged. For this reason, the oil cooler tube should be strong enough to withstand the stresses created by this expansion and contraction. For this reason, the wall is preferably thicker than the pipe wall in the case of an oil-air cooler operated alone, in which no such heat-related stress arises. The above-mentioned wall thickness between 0.35 and 1.0 mm ensures sufficient strength on the one hand and low material consumption on the other.

In a further preferred embodiment, at least one collection and / or distribution pipe has at least one separating device around which

Separate space for the first flowable medium from that for the second flowable medium. This is preferably a partition arranged inside the collecting and / or distributing pipe, through which neither of the two flowable media can pass.

In a preferred embodiment, a flow device is provided between the first and the second flow devices, through which essentially no medium flows. This means that a number of first flow devices, which are arranged parallel to one another, are followed by at least one flow device in which no medium flows, and this in turn is followed by a number of second flow devices, in which the second flowable medium flows. This flow device, in which essentially no flowable medium flows, serves for the thermal insulation of the first flow devices from the second flow devices. The thermal separation between these "blind" flow devices and the respectively adjacent first and second flow devices can be carried out both with and without cooling fins. In a further preferred embodiment, the end section of a flow device, in which essentially no flowable medium flows, projects into a section of the collecting and / or distribution pipe, which is delimited on both sides by partitions. There is essentially no flowable medium between these two partition walls.

In a further preferred embodiment, the collector is arranged essentially parallel to the collecting and / or distribution pipe. The collector has a cross section that is selected from a group of cross sections that contain circular, polygonal cross sections and mixed forms thereof.

The collector is preferably shorter than the collector and / or distribution pipe. The collector particularly preferably has a length which essentially corresponds to the length of the section of the collecting and / or distribution pipe in which the first flowable medium flows. This means that the collector is essentially the same length as the first heat exchange device. However, the length of the collector can also be shorter or shorter than the length of the first device for exchanging heat. '

In a further preferred embodiment, the collector is arranged laterally offset with respect to a plane spanned by the flow devices, more precisely, by the entirety of the flow devices.

In a further preferred embodiment, the number of first flow devices is greater than the number of second flow devices. This means that the first device for exchanging heat also occupies a larger lateral area, more precisely, it occupies a larger space than the second device for exchanging heat. Preferably, at least one header and / or distributor tube, particularly preferably both header and / or distributor tubes, has a plurality of partition devices or partition walls. In this way, the first fluid medium within the first device for exchanging heat is passed back and forth several times between the collecting and distribution pipes.

In a further preferred embodiment, at least one further device for exchanging heat is arranged on the first or the second device for exchanging heat. The first device can preferably be arranged between the second device and the further device for exchanging heat.

In a further embodiment, the second device for exchanging heat or a further device for exchanging heat is arranged essentially parallel to a collecting and / or distribution pipe. It is also possible to arrange the second device for exchanging heat such that the plane spanned by the first flow devices and the plane spanned by the second flow devices are parallel to one another. In this case, the second device for exchanging heat is arranged in front of or behind the first device for exchanging heat in the flow direction of the air.

The second device for exchanging heat is preferably a device that is taken from a group of devices for exchanging heat, which contains power steering oil cooler, transmission oil cooler and the like.

The inflow and outflow of the second device for exchanging heat is preferably arranged at opposite end sections of the second device for exchanging heat. This means that in this In this embodiment, the second flowable medium, that is to say preferably the oil, enters a first collection and distribution pipe, is distributed from there to essentially all of the second flow devices and is collected in the second collection and distribution pipe, and from there flows off via the drain.

In a further embodiment, the inflow and outflow of the second heat exchange device are arranged on the same end portion of the second heat exchange device. In this case, the second flowable medium first reaches the second collection and / or distribution pipe via a predetermined number of flow devices from the first collection and / or distribution pipe, and from there back to the first via a further part of the flow device Collection and distribution pipe and to the drain. In this case, the collecting and distribution pipe, on which the inflow and outflow are arranged, preferably has a separating device or a dividing wall, which is arranged perpendicular to the longitudinal direction of the pipe.

In a further preferred embodiment, the longitudinal direction of at least the inflow or outflow of the second device for exchanging heat is arranged relative to the plane spanned by the entirety of the flow devices and at a predetermined angle. This angle is between 0 degrees and 70 degrees, preferably between 0 degrees and 40 degrees and, particularly preferably, between 5 degrees and 30 degrees.

Further advantages and embodiments of the construction arrangement according to the invention result from the attached drawings.

In it show: 1 a shows a schematic illustration of the construction arrangement according to the invention in a first embodiment;

1 b shows a schematic representation of the construction arrangement according to the invention in a further embodiment;

2a shows a plan view of the construction arrangement according to the invention;

2b shows a side view of the construction arrangement according to the invention;

2c shows a top plan view of the construction arrangement according to the invention;

2d shows a view of the underside of the construction arrangement according to the invention;

3 shows a connection device for the inflows and outflows of the first device for exchanging heat;

4 is an enlarged view of the construction arrangement according to the invention;

5 shows an illustration of the collector for a construction arrangement according to the invention;

6 is an enlarged bottom view of the construction arrangement according to the invention;

7a is an enlarged side view of the construction arrangement according to the invention;

7b shows a further side view of the construction arrangement according to the invention; 8 shows a detailed illustration of a further embodiment of the construction arrangement according to the invention

Fig. 1a shows a schematic representation of the construction arrangement according to the invention. The reference number 1 refers to a first device for exchanging heat, the reference number 2 refers to a second device for exchanging heat. The second device 2 for exchanging heat is arranged with its long side on a long side of the first device for exchanging heat. The reference numeral 5 relates to a collector, which is part of the first device 1 for exchanging heat. The reference numerals 8 and 9 denote an outflow and an inflow, which conduct refrigerant into the first device 1 for exchanging heat or conduct it out again. The reference number 22 shows an inflow for a second flowable medium into the second device 2 for exchanging heat, and reference number 21 shows an outflow for the second flowable medium. In this case, the second device 2 for exchanging heat, which can be, for example, a power steering oil cooler, is simply flowed through. The second device for exchanging heat can alternatively also be arranged below the first device 1 for exchanging heat, which is expressed by the device 2 shown in broken lines. In this case, the second device 2 for exchanging heat is arranged below the supercooling section of the first device for exchanging heat, which in this embodiment is a condenser.

1b shows a constructional arrangement according to the invention in a further embodiment. In contrast to the second devices 2 for exchanging heat shown in FIG. 1 a, in the case of the second devices 2 for exchanging heat shown in FIG. 1 b, both the inflow 21 and the outflow 22 are arranged on one end side of the device. net. In this case, the oil entering the second device 2 is deflected within the device, that is to say it first runs from left to right, and then again from right to left in FIG. 1b.

2a shows a top view of the construction arrangement according to the invention. This has a first collecting and distribution pipe 4 and a second

Collecting and distribution pipe 3. A large number of first flow-through devices 12 and a large number of second flow-through devices 24 are arranged between these collecting and distribution pipes. Reference number 5 relates to the collector, which is arranged parallel to the collecting and distributing tube 3. The reference numerals 6 relate to holding devices with which the structural arrangement can be attached, for example, to a frame of a vehicle body. The reference numeral 9 denotes an inflow for a refrigerant at the first device for exchanging heat, and the reference numeral 8 denotes an outflow for the refrigerant. The reference numeral 21 designates an inflow for the second flowable medium into the second device for exchanging heat 2, and the reference numeral 22 designates an outflow for the second flowable medium. The reference numeral 11 denotes a connection block for the inflows and outflows 9 and 8 of the first device 1 for exchanging heat.

The flow devices 12 and 24 have a length between 100 mm and 1000 mm, preferably between 300 mm and 800 mm and, particularly preferably, between 500 mm and 620 mm. The length L of the device is between 200 mm and 1100 mm, preferably between 400 mm and 900 mm and, particularly preferably, between 600 mm and 700 mm. The

Width B of the assembly is between 100 mm and 600 mm, preferably between 200 mm and 500 mm and particularly preferably between 350 mm and 400 mm. The length of the collector is between 300 mm and 600 mm, preferably between 200 mm and 500 mm and, particularly preferably, between 300 mm and 350 mm.

2b shows a side view of the construction arrangement according to the invention. The reference number 11 denotes the connection block for the inflows and outflows 9 and 8. The reference number 22 denotes the outflow for the second device 2 for exchanging heat. It can be seen that the inflow 9 has several angled areas. Reference numerals 27 and 25 denote holding devices for fastening the connection block 11.

2c shows a view from below of the construction arrangement according to the invention. Here, reference numeral 12 refers to the plurality of flow devices of the first device 1 for exchanging heat. 2c, the longitudinal direction of the inflows and outflows 21 and 22 of the second device 2 for exchanging heat is angled with respect to the longitudinal direction of the throughflow devices 24.

2d shows a further side view of the construction arrangement according to the invention. It can also be seen here that the inflows and outflows 9 and 8 have angled regions. The length of section 9a, which runs essentially parallel to the collecting and distribution pipe 4, can be adapted to the structural conditions in the engine compartment. The reference numerals 14a, 14b and 14c denote partition walls arranged within the collecting and distribution pipe 4, which essentially prevent the flowable media from flowing in the horizontal direction. A through-flow device 12, through which essentially no flowable medium flows, is preferably arranged between the two separation devices 14a and 14b. As stated above, this arrangement serves for thermal insulation. In this embodiment, the second device 2 for exchanging heat is arranged to the left of the separating device 14a, and to the right of the Separating device 14b the first device 1 for exchanging heat. This means that the first flowable medium is arranged on the right side of the separating device 14b, whereas the second flowable medium flows on the left with respect to the separating device 14a. In this way, the flowable media are kept spaced at least by the distance between the separation devices 14a and 14b.

3 shows a detailed view of the connection block 11. This has receiving areas 65 and 67 for receiving the inflow and outflow 9 and 8, respectively. In the end sections of the inflows and outflows 9 and 8, preferably expanded areas are provided for receiving further pipe sections. The reference numeral 64 denotes an opening for inserting a holding device 25 or 27. The holding devices 25 and 27 preferably have threads in order to be screwed into the opening sections 64 and 63 at the top. The connection block 11 is preferably arranged at a predetermined angle with respect to the longitudinal direction of the collecting and distribution pipe 4. This angle is preferably between 0 degrees and 50 degrees, preferably between O ^'degrees and 30 degrees and, more preferably, between 0 degrees and 20 degrees.

FIG. 4 shows a further enlarged side view of the construction arrangement according to the invention. The angle at which the

Connection block 11 is arranged opposite the collecting and distribution pipe 3 or 4, clearly. Furthermore, it can be seen that a cover 59 is attached to the collector 5, by means of which the collector 5 can be opened.

5 shows a detailed view of the collector 5. This has a dryer and / or filter unit in its interior, which is used for filtering or drying the refrigerant. The reference numeral 57 relates to a housing for accommodating the drying device and the filter device, in which for example, a dryer granulate is arranged. The reference numeral 52 relates to a sealing device in order to seal the collector 5 in a liquid-tight manner with respect to the environment when the cover 59 is closed. The reference numeral 56 relates to a lower housing part, in which the dryer and the filter device are arranged.

6 shows a further lower view of the construction arrangement according to the invention. The curved sections of the inflows and outflows 9 and 8 and the inflow 21 for the second device 2 for exchanging heat can also be seen here.

7a shows an enlarged view from below of the construction arrangement according to the invention. It can be seen that the longitudinal direction of the outflow 22 of the second device 2 for exchanging heat runs at a predetermined angle β with respect to the longitudinal direction of the throughflow devices 12 and 24. This angle is between 0 degrees and 40 degrees, preferably between 5 degrees and 20 degrees and, particularly preferably, between 8 degrees and 12 degrees. '

The inflow 21 is also arranged at a predetermined angle with respect to the longitudinal direction of the throughflow device 24. This angle gamma is between 0 degrees and 50 degrees, preferably between 10 degrees and 30 degrees and, particularly preferably, between 18 degrees and 24 degrees.

The reference numeral 14 relates to a frame device which serves to stabilize both the first device 1 and the second device 2 for exchanging heat.

FIG. 7b shows a second side view of the construction arrangement according to the invention. It can be seen that the collector 5 is laterally offset from the plane E spanned by the flow devices. The Reference numeral 6 in turn refers to a holding device for the construction arrangement according to the invention.

8 shows a detailed view of a further construction arrangement according to the invention, the collector not being shown. In this embodiment, both the inflow and the outflow of the second device for exchanging heat are arranged on the same end section of the device. The dividing wall 14a serves to essentially separate the inlet-side area from the outlet-side area.

In addition, two partitions 14b and 14c are shown. A flow device 35, through which essentially no flowable medium flows, is arranged below the section which is delimited by the partition walls 14b and 14c. Instead of a “blind” flow device, a separating web 35 could be provided in this embodiment as well as in the embodiments shown above, the outer dimensions of which preferably correspond to the outer dimensions of the flow devices, which, however, particularly preferably have a full cross section compared to the flow devices, ie has no flow channels.

Claims

Patent claims

1. Construction arrangement for devices for exchanging heat, with - at least one first device (1) for exchanging heat, which has at least one inflow (9) for a first flowable medium, a collecting and / or distribution pipe for the first flowable medium, has a plurality of first flow devices (12) for the first flowable medium, a collector (5) and at least one drain (8) for the first flowable medium; at least one second device (2) for exchanging heat which is arranged next to the first device (1) for exchanging heat and which has at least one inflow (21) for a second flowable medium, a collecting and / or distribution pipe for the second flowable medium, has a plurality of second flow devices (24) for the second flowable medium and at least one drain (22) for the second flowable medium;

2. Construction arrangement according to claim 1, characterized in that at least one collection and / or distribution pipe (3, 4) for the first flowable medium also serves as a collection and / or distribution pipe (3, 4) for the second flowable medium ,

3. Device based on at least one of the preceding claims, characterized in that Two collecting and / or distribution pipes are provided, in which both the first flowable medium and the second flowable medium flow in predetermined sections.

4. Construction arrangement according to at least one of the preceding claims, characterized in that at least one flow device each has two end sections, each of which protrude into a collecting and / or distribution pipe.

5. Construction arrangement according to at least one of the preceding claims, characterized in that the plurality of first flow devices (12) is arranged parallel to the plurality of second flow devices (24).

6. Construction arrangement according to at least one of the preceding claims, characterized in that the first flow devices (12) have essentially the same geometric shape as the second flow devices (24).

7. Construction arrangement according to at least one of the preceding claims, characterized in that the first flow devices (12) have a different geometric shape than the second flow devices (24).

8. Construction arrangement according to at least one of the preceding claims, characterized in that the first flowable medium is a refrigerant.

9. Construction arrangement according to at least one of the preceding claims, characterized in that the second flowable medium is an oil.

10. Construction arrangement according to at least one of the preceding claims, characterized in that at least one collecting and / or distribution pipe (3, 4) has at least one separating device in order to separate the first flowable medium from the second flowable medium.

11. Construction arrangement according to at least one of the preceding claims, characterized in that between the first (12) and the second flow devices (24) a flow device is provided through which essentially no first or second medium flows.

12 construction arrangement according to at least one of the preceding claims, characterized in that the first and second flow devices (12, 24) are only separated by a partition wall which is arranged in at least one collecting and / or distribution pipe (3, 4).

13. Construction arrangement according to at least one of the preceding claims, characterized in that the collector (5) is arranged parallel to the collecting and / or distribution pipe (3, 4).

14. Construction arrangement according to at least one of the preceding claims, characterized in that the collector (5) is shorter than the collector and / or distribution pipe (3, 4).

15. Construction arrangement according to at least one of the preceding claims, characterized in that the collector (5) has a length which essentially corresponds to the length of the section of the collecting and distribution pipe (3, 4) in which the first flowable Medium flows.

16. Construction arrangement according to at least one of the preceding claims, characterized in that the collector (5) is laterally offset relative to a plane (E) spanned by the flow devices (12, 24).

17. Construction arrangement according to at least one of the preceding claims, characterized in that the number of first flow devices (12) is greater than the number of second flow devices (24).

18. Construction arrangement according to at least one of the preceding claims, characterized in that a further device for exchanging heat is arranged on the first (1) or the second device (2) for exchanging heat.

19. Construction arrangement according to at least one of the preceding claims, characterized in that the second device is selected from the exchange of heat from a group of devices for exchanging heat, which includes power steering oil cooler, transmission oil cooler and the like.

20. Construction arrangement according to at least one of the preceding claims, characterized in that the inflow (21) and the outflow (22) of the second device (2) for exchanging heat are arranged at opposite end sections of the second device (2) for exchanging heat ,

21. Construction arrangement according to at least one of the preceding claims, characterized in that the inflow (21) and the outflow (22) of the second device (2) for exchanging heat are arranged at the same end sections of the second device for exchanging heat.

22. Construction arrangement according to at least one of the preceding claims, characterized in that the longitudinal direction of at least the inflow (21) or the outflow of the second device (2) for exchanging heat with respect to the plane (E) spanned by the flow devices (24) under a predetermined angle is arranged.

23 Construction arrangement according to at least one of the preceding claims, characterized in that the separation of the first flow devices (12) with respect to the second flow devices (24) takes place by the interruption of a collecting and distribution pipe (3, 4).