U.S. patent application number 10/566720 was filed with the patent office on 2006-11-16 for heat exchanging device.
This patent application is currently assigned to BEHR GMBH & KG. Invention is credited to Uwe Forster, Kurt Molt, Gerritt Wolk.
Application Number | 20060254760 10/566720 |
Document ID | / |
Family ID | 34177387 |
Filed Date | 2006-11-16 |
United States Patent
Application |
20060254760 |
Kind Code |
A1 |
Forster; Uwe ; et
al. |
November 16, 2006 |
Heat exchanging device
Abstract
The invention relates to a heat exchanging device, especially
for a motor vehicle, comprising at least one flow device (8) and at
least one collection and/or distribution device. Said collection
and/or distribution device comprises at least two moulded parts (2,
3) and at least two bordering elements, and the moulded parts (2,
3) form at least two flow paths (5, 6) for a fluid. Said collection
and/or distribution device has a transition region (11) in at least
one section, which at least partially interconnects the flow paths
(5, 6) of the collection and/or distribution device. The moulded
parts (2, 3) come into contact in at least three sections with the
flat surfaces thereof.
Inventors: |
Forster; Uwe; (LUDWIGSBURG,
DE) ; Molt; Kurt; (Bietigheim-Bissingen, DE) ;
Wolk; Gerritt; (Stuttgart, DE) |
Correspondence
Address: |
FOLEY AND LARDNER LLP;SUITE 500
3000 K STREET NW
WASHINGTON
DC
20007
US
|
Assignee: |
BEHR GMBH & KG
|
Family ID: |
34177387 |
Appl. No.: |
10/566720 |
Filed: |
August 2, 2004 |
PCT Filed: |
August 2, 2004 |
PCT NO: |
PCT/EP04/08627 |
371 Date: |
February 2, 2006 |
Current U.S.
Class: |
165/173 ;
165/176 |
Current CPC
Class: |
F28F 2250/04 20130101;
F28F 9/0204 20130101; F28D 1/05391 20130101; F28F 9/0224
20130101 |
Class at
Publication: |
165/173 ;
165/176 |
International
Class: |
F28F 9/02 20060101
F28F009/02 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 5, 2003 |
DE |
103 36 526.5 |
Claims
1. A heat exchanging device, in particular for motor vehicles, with
at least one throughflow device and at least one collection and/or
distribution device, the collection and/or distribution device
forming at least two moldings and the moldings forming at least two
flow paths for a fluid, wherein the moldings are in contact with
one another over a large area in at least three sections.
2. A heat exchanging device, in particular for motor vehicles, with
at least one throughflow device and at least one collection and/or
distribution device, the collection and/or distribution device
having at least two moldings and, if appropriate, at least one or
two delimiting elements, and the moldings forming at least two flow
paths for a fluid, wherein the collection and/or distribution
device has, at least in one section, a transition region which
connects the flow paths of the collection and/or distribution
device at least partially to one another, and the moldings are in
contact with one another over a large area in at least three
sections.
3. The device as claimed in claim 1, wherein at least the moldings
are produced from a material which is selected from a group of
materials having aluminum, aluminum alloys, iron, iron alloys,
bronze, copper, copper alloys and the like.
4. The device as claimed in claim 1, wherein the moldings are
essentially mirror-symmetrical at least along a longitudinal
axis.
5. The device as claimed in claim 1, wherein the sections which are
in contact with one another are spaced apart spatially from one
another.
6. The device as claimed in claim 1, wherein at least one molding
has edge projections which at least partially fix a second molding
in at least one predetermined position.
7. The device as claimed in claim 1, wherein the collection and/or
distribution device has at least one inner and one outer
molding.
8. The device as claimed in claim 1, wherein the delimiting
elements close at least one flow path of the collection and/or
distribution device in a gas-tight and/or liquid-tight manner.
9. The device as claimed in claim 1, wherein the moldings have
reception devices for the at least partial reception of flat tubes
which are at a predetermined angle with respect to the main
direction of extent of the collecting tubes.
10. The device as claimed in claim 1, wherein the moldings have at
least three connection regions, within which at least two moldings
are connected in a nonpositive, positive and/or materially integral
manner.
11. The device as claimed in claim 1, wherein the flow paths of the
collection and/or distribution device have, in cross section, a
form which is essentially circular, drop-shaped, polygonal,
elliptic, mixed forms and/or the like.
12. The device as claimed in claim 1, wherein the connection region
of the moldings is at least partially thermally decoupled between
the flow paths.
13. The device as claimed in claim 1, wherein in the region of the
transition regions, the connection region of at least one molding
is interrupted between the flow paths.
14. The device as claimed in claim 1, wherein the moldings have, in
cross section, an essentially W-shaped or .omega.-shaped
configuration.
15. The device as claimed in claim 1, wherein at least the edges
located within a flow path are rounded.
16. The device as claimed in claim 1, wherein the transition region
is arranged so as to be rotated about its longitudinal axis with
respect to the longitudinal axis of the collecting tube at a
predetermined angle which is between 0.degree. and 90.degree.,
preferably between 15.degree. and 75.degree., particularly
preferably between 30.degree. and 60.degree. and, in particular,
about 45.degree..
17. The device as claimed in claim 1, wherein the moldings have, at
least in the region of reception of the delimiting elements,
recesses into which the delimiting elements at least partially
engage.
18. The device as claimed in claim 1, wherein a multiplicity of
flat tubes extend between two collection and/or distribution
devices in each case with two flow paths.
19. The device as claimed in claim 1, wherein a multiplicity of
flat tubes are arranged on a collecting tube and connect at least
two flow paths of the collecting tube hydraulically to one
another.
20. The device as claimed in claim 1, wherien the thermal
decoupling of the flow paths is brought about by means of at least
one partial recess in the connection region of the moldings between
the flow paths.
21. The device as claimed in claim 1, wherein the surfaces of the
moldings and structural parts of the device are coated with
solder.
22. A method for producing a heat exchanging device, in particular
for motor vehicles, with at least one flat tube and at least one
collecting tube, having the steps assembly of the moldings to form
a collecting tube fixing of the moldings assembly of the remaining
structural parts and their fixing connection, in particular
materially integral connection of the moldings and structural
parts.
23. The method as claimed in claim 22, wherein the fixing of the
moldings is brought about by deforming of the projections of at
least one molding.
24. A device for the air conditioning of the air conducted into a
vehicle interior of a motor vehicle, with at least one compressor,
one evaporator, one expansion valve and one cooler, at least one
evaporator and/or cooler being a device as claimed in claim 1.
25. The device as claimed in claim 24, wherein a housing of a
ventilation, heating or air conditioning system receives the cooler
and, if appropriate, has further elements, such as air flow paths
or air stream control elements.
Description
[0001] The present invention relates to a heat exchanging device,
in particular for motor vehicles. Heat exchanging devices of this
type, for example for air conditioning systems of motor vehicle,
are known from the prior art.
[0002] These devices have, in the prior art, a multiplicity of
throughflow devices for a refrigerant, which resemble flat tubes
and at the ends of which collection and/or distribution devices are
arranged. In this case, it is known that the multiplicity of
throughflow devices are arranged essentially in two planes parallel
to one another. For this purpose, the collection and distribution
devices have two flow paths separate from one another. In the prior
art, these flow paths are produced via flow connections between the
two flow paths. There is the problem, in this case, that, on the
one hand, this is relatively costly in terms of production and, on
the other hand, the heat exchanging devices known from the prior
art cannot handle the high pressures sometimes required.
[0003] The object of the present invention is, therefore, to
provide a heat exchanging device which is more cost-effective to
produce, as compared with the prior art. This is achieved,
according to the invention, by means of the subject matter of claim
1. Advantageous embodiments and developments are the subject matter
of the subclaims.
[0004] The heat exchanging device according to the invention has at
least one throughflow device, preferably a multiplicity of
throughflow devices, and at least one collection and/or
distribution device. In this case, the collection and/or
distribution device has at least two moldings and, if appropriate,
advantageously also at least one or two delimiting elements. The
moldings in this case form at least two flow paths for a fluid.
[0005] Advantageously, in one exemplary embodiment, the collection
and/or distribution device has, at least in one section, a
transition region which connects at least two flow paths of the
collection and/or distribution device at least partially to one
another. In this case, the moldings are in contact with one another
over a large area in at least three sections.
[0006] A molding is understood in this context to mean a modular
unit which has a predetermined form.
[0007] A delimiting element is understood, within the scope of the
present invention, to mean an element or a device which serves for
demarcating or delimiting a further device, such as, for example a
collection and/or distribution device.
[0008] Connection to one another is understood to mean a connection
such that a liquid and/or gaseous fluid, such as, for example, a
refrigerant, can flow through this connection. Contact over a large
area is understood to mean that contact not only occurs in a
punctiform manner in individual regions, but in a continuous
region, for example along a line which has a finite width.
[0009] In a preferred embodiment, the moldings are produced from a
material which is selected from a group of materials having
aluminum, aluminum alloys, iron, iron alloys, bronze, copper,
copper alloys and the like.
[0010] In a further preferred embodiment, the moldings are
essentially mirror-symmetrical at least along a longitudinal axis.
This means that, in geometric terms, the moldings are essentially
mirror-symmetrical with respect to a plane which contains the
longitudinal axis. This is a plane which lies essentially
perpendicularly to a plane spanned by the two flow paths.
Essentially mirror-symmetrical is understood to mean that, in
considering the symmetry, minor irregularities or even projections
and recesses remain ignored.
[0011] In a further preferred embodiment, the sections which are in
contact with one another are spaced apart spatially from one
another. In a further preferred embodiment, at least one molding
has edge projections which at least partially fix a second molding
in at least one predetermined position. In this case, preferably,
the second molding may have recesses into which the projections
engage. The projections thus serve for fixing the two moldings with
respect to one another, in order then, in a further step, finally
to fix a position prefixed in this way.
[0012] In a further preferred embodiment, the collection and/or
distribution device has at least one inner and one outer molding.
This is to be understood to the effect that, during assembly or
during prefixing, one molding, at least in one section of its outer
walls, engages into or comes into contact with at least one section
of the inner walls of the second molding. This is explained below
in connection with the figures.
[0013] In a further preferred embodiment, the individual moldings
may also have bores which likewise serve for prefixing. In this
case, preferably, the bores are arranged in such a way that, for
example, an essentially elongate article can be led through the two
bores and the moldings can thereby be fixed with respect to one
another.
[0014] In a further preferred embodiment, the delimiting elements
close off at least one flow path of the collecting tube in a
gas-tight and/or liquid-tight manner. That is to say, essentially
no liquid and/or gas can flow past the delimiting element.
[0015] In a further preferred embodiment, the moldings have
recesses for the at least partial reception of flat tubes which are
at a predetermined angle with respect to the main direction of
extent of the collecting tubes. In this case, the recesses may
possess any desired geometric cross section, for example
rectangular, elliptic, generally polygonal or mixed forms of these.
In addition, the recesses may have additional shaped-out portions
which serve, for example, as an introduction slope for the flat
tubes. The predetermined angle of the individual throughflow
devices or flat tubes is between 0.degree. and 90.degree.,
preferably between 0.degree. and 30.degree. and particularly
preferably between 0.degree. and 10.degree..
[0016] In a further preferred embodiment, the transition regions
which connect the flow paths of the collecting tube at least
partially to one another have any desired geometric cross sections
which are selected from a group of cross sections which are
polygonal, circular or elliptic or have mixed forms of these cross
sections.
[0017] In a further preferred embodiment, the moldings have at
least three connection regions, within which at least two moldings
are connected in a nonpositive, positive and/or materially integral
manner. These are preferably those sections in which the moldings
are in contact with one another over a large area.
[0018] In a further preferred embodiment, the flow paths of the
collecting tubes have, in cross section, a form which is
essentially circular, drop-shaped, polygonal, elliptic, mixed forms
of these or the like.
[0019] In a further preferred embodiment, the connection region of
the moldings is at least partially thermally decoupled between the
flow paths.
[0020] In a further preferred embodiment, in the region of the
transition regions, the connection region of the moldings is
interrupted between the flow paths.
[0021] In a further preferred embodiment, the moldings have, in
cross section, an essentially W-shaped or .omega.-shaped
configuration.
[0022] In this case, preferably, the edges located within a flow
path are at least partially rounded.
[0023] In a further preferred embodiment, the transition region, at
least in one section, is rotated with respect to the longitudinal
axis of the collection or distribution device at a predetermined
angle. This angle is between 0.degree. and 90.degree., preferably
between 15.degree. and 75.degree., particularly preferably between
30.degree. and 60.degree. and, in particular, about 45.degree..
This means that the flow direction of the refrigerant in this
section runs at the predetermined angle with respect to the
longitudinal axis.
[0024] In a further preferred embodiment, the moldings have, at
least in the region of reception of the delimiting elements,
recesses into which the-delimiting elements at least partially
engage. Preferably, delimiting elements can be essentially pushed
into these recesses.
[0025] In a further preferred embodiment, a multiplicity of
throughflow devices extend between two collection and/or
distribution devices. In this case, preferably, the multiplicity of
throughflow devices are arranged on at least two planes essentially
parallel to one another. It is also within the scope of the
invention, however, to arrange the multiplicity of throughflow
devices in more than two planes essentially parallel to one
another.
[0026] In a further preferred embodiment, a multiplicity of flat
tubes are arranged on at least one collection and/or distribution
device, and at least two flow paths of the collection and/or
distribution device are hydraulically connected to one another by
means of the multiplicity of throughflow devices or flat tubes. For
this purpose, the throughflow devices have at least one bent or
curved section. In this embodiment, preferably, only two collection
and/or distribution devices overall are provided.
[0027] Within the preferred embodiment, the thermal decoupling of
the flow paths is brought about by means of at least one partial
recess in the connection region of the moldings between the flow
paths. In this case, however, this recess may also extend along
essentially the entire length of the collection and/or distribution
device.
[0028] In a further preferred embodiment, the surfaces of the
moldings and/or structural parts of the device are coated with
solder.
[0029] The invention is aimed, furthermore, at a method for
producing a heat exchanging device, in particular for motor
vehicles, which has at least one throughflow device or flat tube
and at least one collection and/or distribution device.
[0030] In this case, in a first step, the moldings are assembled to
form a collection and/or distribution device and are subsequently
fixed. Thereafter, in further steps, the remaining structural parts
are assembled and fixed. Finally, the moldings and/or structural
parts are connected to one another in a materially integral
manner.
[0031] Preferably, the fixing of the moldings is brought about by
deforming of the projections of at least one molding.
[0032] The invention is aimed, furthermore, at a device for the air
conditioning of the air conducted into a vehicle interior of a
motor vehicle, said device having at least one compressor, one
evaporator, one expansion valve and one cooler, at least one
evaporator and/or cooler having a device of the type described
above.
[0033] Further advantages and embodiments of the present invention
may be gathered from the accompanying drawings in which:
[0034] FIG. 1 shows a partial illustration of a heat exchanging
device according to the invention in a first embodiment;
[0035] FIG. 2 shows a cross section through a collection and/or
distribution device according to the invention;
[0036] FIG. 3 shows a molding for a heat exchanging device
according to the invention;
[0037] FIG. 4 shows a top view of the molding for a heat exchanging
device according to the invention from FIG. 3;
[0038] FIG. 5 shows an illustration along the line A-A in FIG.
4;
[0039] FIG. 6 shows an illustration of a further molding for a heat
exchanging device according to the invention;
[0040] FIG. 7 shows an illustration along the line A-A in FIG.
6;
[0041] FIG. 8 shows a partial illustration of the heat exchanging
device according to the invention;
[0042] FIG. 9 shows a further illustration of the heat exchanging
device according to the invention;
[0043] FIG. 10 shows a heat exchanging device according to the
invention in a further embodiment;
[0044] FIG. 11 shows a partial illustration of a molding in a
further embodiment;
[0045] FIG. 12 shows a further partial illustration of the molding
from FIG. 11;
[0046] FIG. 13 shows a view along the lines A-A in FIG. 12;
[0047] FIG. 14 shows a view along the lines B-B in FIG. 12;
[0048] FIG. 15 shows a collection and/or distribution device for a
heat exchanging device according to the invention in the dismantled
state;
[0049] FIG. 16 shows a collection and/or distribution device in a
further embodiment for a heat exchanging device according to the
invention.
[0050] In FIG. 1, reference symbol 1 refers to a collection and/or
distribution device for a heat exchanging device according to the
invention.
[0051] The latter has a first molding 2, in this case a bottom, and
a second molding 3, a cover. The first molding 2 is designated
hereafter as the bottom and the second molding 3 as the cover.
[0052] Reference symbol 4 refers to brackets which are attached to
the cover 3 and serve for prefixing to the bottom. In the present
embodiment, the bottom lies on the inside and the cover lies on the
outside. Conversely, however, the bottom could lie on the outside
and the cover lie on the inside. Moreover, the brackets could also
be arranged on the bottom instead of on the cover, or some of the
brackets could be arranged on the cover and others on the
bottom.
[0053] Receptacles or reception devices 7 for the reception of
throughflow devices or flat tubes 8 are provided in the bottom 3.
These reception devices may have any desired form preferably
adapted to the geometry of the throughflow devices. The twisting of
the end sections 9 of the throughflow devices 8 serves as a tube
stop. However, this is not absolutely necessary. Reference symbol
13 refers to a punched-out portion or recess in the bottom 2 and/or
in the cover 3 which serves for thermal separation. Reference
symbol 11 designates an overflow duct or a connection between the
left and the right flow path in FIG. 1. Partitions 10 serve for
closing the collection and/or distribution devices.
[0054] FIG. 2 shows a cross section through the collection and/or
distribution device from FIG. 1. In this case, reference symbols 5
and 6 refer to the two flow ducts of the collection and/or
distribution device which have a predetermined hydraulic diameter.
In the illustration shown here, the bottom 2 and the cover 3 are in
contact with one another over a large area in three regions, to be
precise in the middle along the vertical line depicted and in each
case in the right and the left edge in FIG. 2. Reference symbol 4
identifies a projection or bracket which serves for prefixing the
bottom with respect to the cover.
[0055] FIG. 3 shows a bottom 2 for a heat exchanging device
according to the invention. In this case, in particular, the
punched-out portion 13 for thermal separation and the transition
region 11 are shown. The punched-out portion is not provided along
the entire length of the bottom here, but only in the region
between one end of the bottom and the connection 11. Thermal
separation has particularly great importance especially in this
region, since, in the region downstream of the supply of the
refrigerant, the temperature of the refrigerant changes very
sharply and quickly during throughflow.
[0056] FIG. 4 shows a top view of the cover 2 from FIG. 3 in order
to illustrate the geometry. In the present embodiment, the
transition region is arranged at an angle of 45.degree. with
respect to the longitudinal direction of the cover and consequently
of the collection and/or distribution device.
[0057] The reception devices for the throughflow devices have an
elongate configuration here, and the longitudinal direction lies
essentially parallel to the longitudinal direction of the
bottom.
[0058] FIG. 5 shows an illustration along the line A-A in FIG. 3.
Here, in particular, the transition region 11 is shown. The
transition region 11 is formed by a corresponding shaped-out
portion of the bottom 14. Reference symbol 7 refers to the
reception devices for the throughflow devices.
[0059] FIG. 6 shows a cover device 3 for a heat exchanging device
according to the invention. Reference symbol 4 identifies
projections or brackets which serve for prefixing to the bottom
device 2. Reference symbol 12 identifies two partitions which are
arranged in the two flow paths and serve for preventing the
throughflow of the refrigerant along the longitudinal direction of
the collection and/or distribution device. Further partitions 10
are arranged at the end of the collection and/or distribution
device.
[0060] FIG. 7 shows a view along the lines A-A from FIG. 6. The
cover 3, too, has a recess or shaped-out portions 15 in the region
of the transition region.
[0061] FIG. 8 shows a heat exchanging device according to the
invention in order to illustrate the flow paths for the
refrigerant. The refrigerant passes via a supply (not shown) into
the region, identified by 16, for the collection and/or
distribution device 1. In this region, the refrigerant can be
distributed between the lower end of the collection and/or
distribution device and the partition 12. The refrigerant passes
via the throughflow devices 8, between which preferably cooling
ribs 38 are arranged, into the lower collection and/or distribution
device 1a or into the region 17a of the latter. The refrigerant can
be distributed there along the entire length of the lower
collection and/or distribution device or the flow path, illustrated
on the right in the figure, or region 17a.
[0062] The refrigerant, then, flows via the throughflow devices 8
into the region 18 of the upper collection and/or distribution
device 1. The refrigerant passes from there via the transition
region 11 into the section 19 of the collection and/or distribution
device 1. This section extends essentially between the partition 12
on the left in the figure and the lower end of the collection
and/or distribution device 1. The fluid passes from there via the
throughflow devices 8 into the region 17b, shown on the left in the
figure, of the collection and/or distribution device 1. The fluid
can again be distributed here along the entire longitudinal
direction of the flow path, that is to say of the collection and
distribution device. Finally, the refrigerant passes via the
throughflow devices 8 into section 20 and finally flows out of the
heat exchanging device via a discharge (not shown).
[0063] FIG. 9 shows a further possibility for the routing of the
medium, that is to say of the refrigerant, within the heat
exchanging device. In this case, the refrigerant flows through the
device first completely in the lower region, that is to say through
all the throughflow devices in both planes below the partitions 12.
Finally, the refrigerant is routed via the connection 11 into the
upper region of the device and subsequently runs again through the
entire device in this upper region.
[0064] For this purpose, the collection and/or distribution device
1' shown in FIG. 9 also has partitions (not shown).
[0065] FIG. 10 shows the heat exchanging device according to the
invention in a further preferred embodiment.
[0066] In this embodiment, the device has only one collection
and/or distribution device 1 with two flow paths. The throughflow
devices 8 have a curved region 8a. The refrigerant flows, here,
from the flow path shown on the right in the figure into the flow
path on the left. This device has partitions (not shown) which are
located at the points identified by reference symbols 33 and 34. In
addition, a transition region 11 is provided which connects the two
flow paths to one another. The run of the refrigerant in the device
shown in FIG. 10 corresponds to that in FIG. 9.
[0067] FIG. 11 illustrates a further top view of the collection
and/or distribution device. In this embodiment, the reception
devices are not arranged parallel to the longitudinal direction of
the collection and/or distribution device 1, but at a predetermined
angle with respect to the longitudinal direction. Reference symbol
13 identifies the recess which serves for the thermal separation of
the two regions 5 and 6 of the collection and/or distribution
device 1. The cover has projections 4 which serve for prefixing the
cover device with respect to the bottom.
[0068] FIG. 12 shows an illustration of a detail of a heat
exchanging device according to the invention. In this case, here,
the reception devices 7 are again essentially parallel to the
longitudinal direction of the collection and/or distribution device
1.
[0069] FIG. 13 shows an illustration along the lines A-A from FIG.
12. It can be seen that the recess 7 is countersunk with respect to
the bottom 2.
[0070] FIG. 14 shows a section through the collection and/or
distribution device from FIG. 12 along the line B-B. In this case,
the essentially W-shaped or .OMEGA.-shaped configuration of the
bottom becomes apparent.
[0071] FIG. 15 shows the collection and/or distribution device 1a,
for example, according to FIG. 8, here the cover and the bottom
having been separated from one another in order to allow an
internal view. A plurality of push-in devices 44 are provided, into
which partitions 12 can be pushed. Reference symbol 10 refers to a
closing-off device which closes off the heat exchanging device
downwardly and upwardly.
[0072] FIG. 16 shows an illustration of an exemplary embodiment of
a heat exchanging device according to the invention in a view into
the interior. In this case, reference symbols 21, 22, 23 and 24
identify the different flow regions of the throughflow device. The
partitions 12 in this case subdivide the regions 23 and 24 and 21
and 23. Reference symbol 25 identifies a projection serving for
forming the transition region 11, along which a routing of the
refrigerant between the regions 21 and 22 is possible. The device
may have one or even a multiplicity of such transition regions. In
this case, the device 25 and the device 25' cooperate in order to
bring about the actual routing of the refrigerant. As already
stated above, this connection may have any desired cross section or
have any desired angle with respect to the flow ducts or to the
regions 21, 22, 23 and 24. In a further preferred embodiment,
however, such projection parts 25, 25 for the flow connection may
also be arranged either only on the cover or only on the bottom.
Further, it is also possible to produce the flow connection in such
a way that two partitions lying parallel to one another and having
orifices are pushed into the collection and/or distribution
device.
[0073] In a preferred embodiment, the cover and the bottom are
arranged mirror-symmetrically with respect to one another in a
plane which runs perpendicularly through all the contact
surfaces.
[0074] Furthermore, it is also possible to route the refrigerant
through the heat exchanging device in another way, that is to say
to provide a plurality of transition regions or else a plurality of
flow paths arranged one behind the other. Thus, the throughflow
devices could also be arranged in more than two planes parallel to
one another. The throughflow for the heat exchange may take place
both from the top downward and from the bottom upward.
[0075] The supply and discharge for the refrigerant may either both
be arranged on one collection and/or distribution device or also be
arranged in different collection and/or distribution devices.
[0076] FIGS. 17 to 19 show further exemplary embodiments, FIG. 17
illustrating a collection and distribution device 100, such as, for
example, a collecting tube, in section. In this case, the
collection and distribution device 100 is composed of two moldings
101 and 102, the two moldings bearing one against the other over a
large area at at least three surfaces and countersurfaces. Two
ducts 103, 104 are formed between the two moldings 101, 102.
Partitions 110 are inserted into the moldings 101 and/or 102 into
slots, in order to guide or prevent a fluid stream within the
collection and distribution device. In this case, one molding 101
at least partially surrounds the other molding 102 by means of its
end regions or by means of brackets 105, 106 arranged or integrally
formed thereon.
[0077] Furthermore, the molding 101 has introduced into it slots
into which tube ends are inserted, so as to be in fluid
communication with the interior of the collection and distribution
device. The ends of the tubes 120 are inserted into these slots or
orifices, the ends being twisted for this purpose so that they are
inserted perpendicularly into the slots.
[0078] FIG. 18 shows an exemplary embodiment of FIG. 17 in a view
without the cover 102. The tube ends 121 are introduced into the
vertically oriented slots. Overflow from one duct 130 into the
other duct 131 takes place through an essentially transversely
running duct 140, and the ducts in each case running vertically are
blocked by two partitions 141, 142.
[0079] FIG. 18 shows a view of a corresponding collecting tube, the
duct, as an overflow region 140a, being formed by a vaulting in at
least one of the two moldings of the collection and distribution
device, in which case the vaulting may be provided either in the
cover 102 or in the bottom 101 or in both moldings, and,
furthermore, two reinforced partitions 141a, 142a are provided for
blocking the vertical ducts.
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