EP1435503A2 - Wärmeübertrager sowie Wärmeübertrageranordnung für ein Kraftfahrzeug - Google Patents
Wärmeübertrager sowie Wärmeübertrageranordnung für ein Kraftfahrzeug Download PDFInfo
- Publication number
- EP1435503A2 EP1435503A2 EP04008664A EP04008664A EP1435503A2 EP 1435503 A2 EP1435503 A2 EP 1435503A2 EP 04008664 A EP04008664 A EP 04008664A EP 04008664 A EP04008664 A EP 04008664A EP 1435503 A2 EP1435503 A2 EP 1435503A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- wall sections
- preamble
- tube
- pipe ends
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
-
- 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
- F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
- F28D1/0435—Combination of units extending one behind the other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0221—Header boxes or end plates formed by stacked elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
-
- 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
- F28D2021/0082—Charged air coolers
-
- 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
- F28D2021/0084—Condensers
-
- 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
- F28D2021/0094—Radiators for recooling the engine coolant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
- F28F2009/004—Common frame elements for multiple cores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/16—Fastening; Joining with toothed elements, e.g. with serrations
Definitions
- the invention relates to a heat exchanger for a motor vehicle with a rib / tube block, the flat tubes on opposite sides with such expanded pipe ends are provided that transversely, adjacent to each other Wall sections of the pipe ends lie flat against each other and the pipe ends are aligned in a row, wherein on the pipe ends on both sides each have a flow box flush with corresponding longitudinal wall sections the pipe ends is placed, as well as a Heat exchanger arrangement for a motor vehicle with at least two arranged one behind the other in the direction of flow Heat exchangers.
- the object of the invention is to provide a heat exchanger and a Heat exchanger arrangement of the type mentioned above create a functionally reliable manufacturing as well as a enable simple and space-saving construction.
- this object is achieved by that the adjacent, transverse wall sections the pipe ends abut positively.
- the corners of the expanded pipe ends with radii between 0 and 2 mm provided.
- the expanded tube ends preferably a rectangular shape, which according to the previously described Embodiments additionally with correspondingly deformed wall sections can be provided.
- the preferred radii Ensure that between the adjacent pipe ends too in the area of the outsides only extremely narrow column remain completely through the solder during the soldering process can be filled, so that the dense solder joint with each other and in particular to the lateral wall areas the flow boxes is guaranteed.
- the pipe ends each asymmetrical to the center longitudinal planes of the associated Flat tubes widened. This makes it possible to have special arrangements to realize the components of the heat exchanger, without affecting the safe function of the heat exchanger.
- the scope corresponds the expansion of each pipe end to the periphery of the associated one Flat tube plus or minus 30%.
- the negative relation between the circumference of each flat tube and the circumference of the associated, expanded pipe end results in particular by a partially double-walled folding the Wall of pipe ends.
- the lateral pipe sections facing the adjacent pipe ends have a height of between 0.3 and 2 times a pitch of the flat pipes, namely 0.3T ⁇ H 1 ⁇ 2T. This preferred dimensioning allows a secure tight connection between the pipe ends and sufficient stability of the entire fins / tube block.
- the flat tubes obliquely relative to the axis of symmetry of the flared pipe ends aligned. Also by this configuration is a special arrangement of the heat exchanger in a motor vehicle possible, in particular an oblique arrangement the heat exchanger within an engine compartment of the motor vehicle - In the normal direction of travel of the motor vehicle based - is advantageous.
- the inventive Problem solved in that the at least two heat exchangers on opposite sides one common each Side part is assigned. Through the common side parts on the one hand, a simple and secure connection of the heat exchanger relative to each other and the other an exact Positioning relative to each other achieved. Furthermore results in a simplified assembly and manufacturing for the Heat exchanger assembly with a reduced number of Components.
- the flow boxes of at least one heat exchanger in their side areas open designed, and the opposite side panels are each with at least one corresponding end portion provided in the respective side areas of the Protrude flow boxes and close them tight.
- the at least two heat exchangers common, over the total depth of the ribs / tube block extending ribs. This will achieves a simplified construction of the heat exchanger arrangement, because the number of components is reduced and the ribs directly the connection of the heat exchangers with each other produce.
- the flow boxes the at least two heat exchanger with connection piece provided, which are parallel to each other and curved in the same direction are aligned. This is a streamlined Arrangement of the connecting piece given, which also saves space acts.
- isolation column arranged between the Pipes and / or the flow boxes isolation column arranged. These insulation gaps are used for thermal insulation the adjacent heat exchanger against each other, wherein the Isolation column preferably each of the tubes over their entire Length up to the respective flow boxes from each other separate. However, this embodiment also detects insulation gaps, the only sections between the adjacent Pipes and / or flow boxes are provided.
- the isolation column have preferred widths between 1 and 10 mm on.
- a heat exchanger assembly 1 for a motor vehicle has a first heat exchanger in the form a water / air cooler, a second heat exchanger in Form of a charge air cooler and a third heat exchanger in the form of a capacitor.
- the three heat exchangers are parallel to each other transversely to the vehicle longitudinal direction in an engine compartment of the motor vehicle arranged so that they are in Direction of flow of the airstream in the normal direction of travel of the motor vehicle are arranged one behind the other.
- the water / air cooler has a in Fig. 1 upper than Flow box serving water tank 2 and a lower Water tank 5, wherein the lower water tank 5 two connecting pieces 9 and 10 for connecting the water / air cooler arranged on the corresponding cooling water circuit are.
- a rib / tube block 4 Between the two water tanks 2 and 5 extends a rib / tube block 4, its structure and its connection with the water boxes 2 and 5 described in more detail below will be.
- Behind the water / air cooler is the intercooler arranged, one serving as a flow box upper air box 3 and a corresponding lower Air box 6 has.
- Between the two air boxes 3 and 6 is analogous to the water / air cooler a not shown Ribs / tube block provided, its construction and its Connection with the air boxes 3 and 6 the corresponding structure of the water / air cooler corresponds.
- Behind the intercooler the capacitor is positioned, which is an upper one Flow box 13 and a lower flow box 14 and one between these flow boxes 13, 14 extending and having unspecified ribs / tube block.
- Flow box 13, 14 is replaced by two to a circular hollow chamber profile composed half-shells, respectively a half-shell a bottom of the respective flow box 13, 14 represents and with indentations for tight connection is provided at pipe ends of the flat tubes.
- the side are the Flow boxes 13, 14 each through a lid insert tightly closed.
- Both the ribs / tube block of the intercooler and the Ribs / tube block of the water / air cooler are of a variety of parallel flat tubes and between ' composed of these arranged corrugated fins.
- the opposite Pipe ends of the flat tubes are each rectangular expanded, so that the pipe ends of FIG. 1 in each case a row with their in the longitudinal direction of the flow boxes seen transverse wall sections flat and close to each other.
- the longitudinal wall sections the flared pipe ends each run in one Escape to each other. At these longitudinal wall sections the pipe ends, each the outside of the Form ribs / tube block, are corresponding, longitudinal Wall areas of the flow boxes flat and flush final.
- the expanded pipe ends form thus directly the "bottoms" of the flow boxes, so that the additional Provision of floors in the area of the flow boxes is avoided.
- the described structure of the heat exchanger corresponds to the design of the pipe ends and the placement of the Flow boxes, as in the unpublished DE 195 43 986.4 is described.
- the flow boxes of both the intercooler and the Water / air coolers are on their opposite side areas each designed open.
- This side areas of the flow boxes takes over each a termination section 15, 16, 18, 19 of a side part 11, 12, which integrally over the entire depth of the heat exchanger assembly and thus extends over all three heat exchangers.
- the two side parts 11, 12 limit the ribs / tube blocks the water / air cooler, the intercooler and the capacitor on opposite sides.
- the flow boxes 13, 14 of the Kondenstators have the side parts 11, 12 only a contact portion 17, the on a lower edge of the respective half shell of the flow boxes 13, 14 is supported and thus no lateral sealing function takes over.
- the two side parts 11, 12 are for assembly the heat exchanger assembly from opposite sides attached to the ribs / pipe blocks and simultaneously with their termination sections 15, 16, 18, 19 axially - on the Referred to longitudinal direction of the flow boxes - in the flow boxes used.
- a clamping device such as tension bands or the like, the entire heat exchanger assembly including the side parts 11, 12 in the transverse direction of the Ribs / pipe blocks loaded on pressure and then in a common soldering process soldered tight.
- all components of the heat exchanger assembly 1 made of sheet metal, preferably an aluminum alloy are made. At least the each tight to be joined sections of the individual components of the heat exchanger assembly are soldered accordingly.
- each retaining claws provided in the embodiment of FIG. 7 are provided with the reference numeral 26. These are going to be the axial insertion of the end portions of the side parts 11, 12 bent inwards, wherein they are in corresponding recesses the contact webs of the end portions 15, 16, 18, 19 intervene. Even without the described clamping devicePer.somit on the side parts 11, 12 already a fixation the flow boxes of the intercooler and the water / air cooler relative to the associated ribs / tube blocks and relative achieved to the side parts 11, 12.
- FIGS. 6 to 8 Another heat exchanger arrangement according to FIGS. 6 to 8 has only two successively arranged heat exchanger of which one as a water / air cooler and the other than capacitor are formed.
- the water / air cooler corresponds in its construction to the previously with reference to FIG. 1 to 5 described in detail water / air cooler of the heat exchanger assembly 1, so that no further explanation necessary is.
- the water / air cooler and the Capacitors are also on opposite sides two associated with common side parts 12a, which correspond in principle accordingly the side panels 11 and 12, but for only two heat exchangers designed, designed.
- Each side part 12a only has one end section 16a in each case for the respective side area of the water box of the water / air cooler auf, analogous to the 'embodiment of the Fig. 1 to 5 by means of retaining claws 26 in the side areas fixed and then tight with the water boxes , are soldered.
- FIG. 9 is a heat exchanger assembly similar to Figs. 6 to 8 shown in fragmentary form, preferably also from a water / air cooler and a capacitor.
- this heat exchanger arrangement a common Having ribs / tube block, in which the flat tubes 21 b of the Capacitor on the one hand and the flat tubes 24b of the water / Air cooler on the other hand are separated from each other, but common and over the entire depth of the heat exchanger assembly has continuous corrugated ribs 27.
- the corrugated ribs 27 thus have the same width as those also over the entire heat exchanger assembly extending side panels 12b on.
- the heat exchanger assembly of FIG. 10 is analogous to Heat exchanger assembly of FIG. 9 also with a common Ribs / tube block provided with corrugated fins 28 itself extend over the entire depth of the heat exchanger assembly.
- the heat exchanger arrangement 29 according to FIG. 11 corresponds to FIG their structure basically the embodiment of the Fig. 1 to 5 or Fig. 10.
- a water / air cooler has Flat tubes 30 a not shown ribs / tube block on, on their expanded pipe ends directly water tanks 35 are attached.
- the water boxes 35 are identical and designed symmetrically to each other and each have one Connecting piece 37, according to the illustration according to Fig. 11 parallel to each other in the same direction horrrekken.
- the intercooler has analogous to the water / air cooler designed flat tubes 31 of an associated ribs / tube block on, auf'deren expanded pipe ends on opposite Pages each an air box 34 is placed.
- the air boxes 34 on the opposite sides of the Intercooler are identical and symmetrical to each other, wherein both air boxes each have a terminal manifold each above or below the respective Water box 35 so symmetrical to the water / air cooler is curved, that the inserted connecting piece 36 parallel aligned with the connection piece 37 of the water / air cooler are.
- by virtue of symmetrical, identical construction of the opposite Flow boxes is a simplified manufacture the heat exchanger assembly in particularly high quantities allows.
- the condenser which consists of flow boxes 33 and a flat tubes 32 having ribs / tube block composed is also symmetrical to a median transverse plane (shown in phantom) of the heat exchanger assembly built up.
- the individual heat exchangers according to FIG. 11 are through common side parts and / or over the entire depth the heat exchanger assembly 29 extending corrugated fins to a Entire block analogous to the previously described embodiments firmly connected.
- all components of the heat exchanger and the Heat exchanger assembly for a soldering in a common Soldering process are made of metal.
- the heat exchanger arrangements according to FIGS. 8 to 11 have flow boxes (water tank 2a and flow box 13a according to FIG. 8 and water tank 35, air box 34 and flow box 33 according to FIG. 11), which are separated from each other by insulation gaps SP 1 , SP 4 are.
- insulation gaps SP 1 , SP 4 are provided between the water tank 2 a and the flow box 13 a of FIG. 8
- the insulation gap between the water tank 35 and the air box 34 is designed substantially larger.
- the insulation gaps should avoid heat transfer between the different hot or hot flow boxes during operation.
- insulation gaps SP 2 are provided between the tubes 21b, 24b, as well as insulation gaps SP 2 and SP 3 between the tubes 21c, 22c, 24c, which serve for thermal insulation of the adjacent tube blocks (FIGS. 9, 10).
- insulation gaps SP 2 , SP 3 are provided between the tubes 31, 32 and 30, 31.
- All insulation gaps have a width between 1 mm and 10 mm up.
- a heat exchanger as he uses the water / air cooler as well
- the intercooler of the embodiments described above disclosed may have various details, which makes up for a heat exchanger with a principle already described the structure below With reference to FIGS. 12 to 27 listed embodiments result. These details can be either on your own or in optional Combining the respective embodiments of heat exchangers result.
- the flared tube ends of the fin / tube block of a heat exchanger as previously described in principle, provided with a rectangular bulge A, as shown in Fig. 20.
- the width L (FIG. 14) of the longitudinal wall sections of each bulge A is less than the width B 2 (FIG. 14) of the associated flat tubes.
- the longitudinal wall sections extending in the longitudinal direction of the flow boxes have a width B 1 which corresponds to the pitch T of the fin / tube block.
- the height H 1 of the transverse wall sections of the bulges A which corresponds to the height der' Vogelthesis these wall sections together, is between 0.3 and 2 times the pitch T of the rib / tube block, the selection of this range depending on respective requirements of the Heat exchanger is selected.
- each bulge A between the normal flat tube cross-section and the respective end face of the flared tube end has an angle of inclination W - to the surface of the transverse wall portion of the bulge A - on which between 5 ° and 90 °, but preferably between 25 ° and 65 ° lies.
- the transition region either as an inclined plane or only as a direct connection of two radii - from the flat tube on the one hand and from the bulge forth on the other hand - be provided.
- the inclination angle W is then determined by the common tangent of the two radii.
- the height H 2 of the longitudinal wall portions of each bulge A the.
- the degree of bulge is defined inter alia by the ratio of the peripheries of the bulge A on the one hand and the associated flat tube F on the other hand.
- the scope of the bulge A is dimensioned according to preferred embodiments so that it corresponds to the circumference of the associated flat tube F plus or minus 30%.
- the corners of the rectangular flares A of the flat tubes preferably have an outer radius R a and an inner radius R i (FIG. 16) which are between 0 and 2 mm.
- the outer radius R a is so dimensioned that remain only very narrow joints between the adjacent pipe ends and the side walls of the flow boxes, which are completely and tightly filled in the soldering oven by the flowing solder.
- the tube ends of the flat tubes F of the ribs / tube block are expanded asymmetrically, resulting in a central longitudinal plane of each flat tube F offset bulges A S.
- the adjacent bulges A S are juxtaposed as shown in FIG. 13 to achieve the mutual tight connection.
- the flat tubes form either according to the flat tube F 1 of FIG. 19 a single, continuous flow channel, or are provided according to the embodiment of FIGS. 14 to 18 with two separate flow channels (F S1 , F S2 ), wherein the illustrated flat tube F is designed by corresponding longitudinal corrugations N on opposite sides.
- the two flow channels can also be created by a correspondingly extruded aluminum profile.
- more than two flow channels are provided in a flat tube.
- FIGS. 21 to 27 various exemplary embodiments are illustrated which further improve the "bottomless" heat exchangers, in which flow boxes are placed directly on the widened tube ends of the rib / tube block.
- a form-fitting fixing of the widened tube ends to one another transversely to the longitudinal direction of the flow boxes, not shown, is achieved by a corresponding shaping of the transverse wall sections of the widened tube ends A 1 , A 2 , A 3 and A 6 .
- the wall sections are curved in a correspondingly arcuate manner.
- they are wavy curved.
- FIG. 23 have arcuate curvatures which run between rectilinear webs of the wall sections.
- the wall portions are also wavy, wherein the waveform extends to the transverse side wall sections and does not transition into straight webs, as is the case in the embodiment of FIG. 22.
- the transverse-side wall sections of the widened pipe ends A 4 and A 5 are unchanged compared to the embodiment of FIG. 20 rectilinear and flat.
- the longitudinal side wall sections are V-shaped expanded outwards.
- the corresponding wall portions S 1 of the attached flow box zigzag-shaped, so that there is a positive engagement in the longitudinal direction of the flow box between the widened pipe ends A 4 and the wall regions of the respective flow box 1.
- a wave-shaped widening of the longitudinal wall sections of the widened tube ends A 5 is provided in the embodiment according to FIG. 25 .
- the corresponding wall regions of the flow box S 2 are curved in a wave-like manner, which in the same way results in a positive connection between the flow box S 2 and the pipe ends A 5 , as in the exemplary embodiment according to FIG. 24.
- the bulges A of the flat tubes F 2 are oblique, preferably approximately diagonally offset from the central longitudinal planes of the flat tubes F 2 , resulting in the flush juxtaposition of the tube ends, the parallel and oblique orientation of the flat tubes F 2 shown .
- the flat tubes are provided on opposite sides with such expanded tube ends that adjacent transverse wall sections of the tube ends lie flat against each other and the tube ends are aligned in a row, wherein the tube ends on both sides in each case
- Flow box is flush mounted with corresponding longitudinal wall sections of the pipe ends, characterized that the adjacent, transverse wall sections of the pipe ends (A 1 , A 2 , A 3 , A 6 ) abut each other in a form-fitting manner.
- Heat exchanger according to the preamble of claim 1 or claim 1, characterized in that the flow boxes (S 1 , S 2 ) facing, longitudinal wall sections of the pipe ends (A 4 , A 5 ) form-fitting manner on corresponding wall portions of the flow boxes (S 1 , S 2 ) abut.
- Heat exchanger according to claim 1 or 2, characterized in that the mutually facing, transverse wall sections of adjacent pipe ends (A 2 ) are provided with mutually corresponding, wave-shaped or arcuate curvatures.
- Heat exchanger according to claim 2 or 3, characterized in that the longitudinally extending wall sections of the pipe ends (A 4 , A 5 ) are each provided with at least one curvature or corner projecting from the alignment of the wall sections, and in that the associated wall regions of the flow boxes (S 1 , S 2 ) correspondingly curved in opposite directions or jagged.
- Heat exchanger according to the preamble of claim 1 or according to one of the preceding claims, characterized in that the corners of the widened pipe ends (A) are provided with radii (R i , R a ) between 0 and 2 mm.
- Heat exchanger according to the preamble of claim 1 or according to one of the preceding claims, characterized in that the pipe ends (A S ) are each expanded asymmetrically to a center plane of the associated flat tube (7).
- Heat exchanger according to the preamble of claim 1 or according to one of the preceding claims, characterized in that the circumference of the widening (A) of each tube end corresponds to the circumference of the associated flat tube (F, F 1 ) plus or minus 30%.
- Heat exchanger according to the preamble of claim 1 or according to one of the preceding claims, characterized that a transitional area between the widening the pipe end and a flat pipe jacket at an angle (W) between 5 ° and 90 °, preferably between 25 ° and 65 ° inclined to the transverse wall portion of the expansion is.
- Heat exchanger according to the preamble of claim 1 or according to one of the preceding claims, characterized in that the extent (L) of the transverse wall sections is smaller than the width (B 2 ) of the flat tubes.
- Heat exchanger according to the preamble of claim 1 or according to one of the preceding claims, characterized in that the transverse wall sections facing the adjacent pipe ends have a height (H 1 ) between 0.3 and 2 times a pitch (T) of the flat tubes, namely 0.3T ⁇ H 1 ⁇ 2T.
- Heat exchanger according to the preamble of claim 1 or according to one of the preceding claims, characterized in that the height (H 2 ) of the soldering surface of the collecting box (S) facing longitudinal wall sections is less than the height (H 1 ) of the transverse wall sections.
- Heat exchanger according to the preamble of claim 1 or according to one of the preceding claims, characterized in that the flat tubes (F 2 ) are oriented obliquely relative to axes of symmetry of the widenings (A) of the tube ends.
- Heat exchanger arrangement characterized in that that the flow boxes (2, 3, 5, 6, 2a) of at least one heat exchanger in their side areas open are designed, and that the opposite side parts (11, 12, 12a) each having at least one corresponding one End portion are provided in the respective Side areas of the flow boxes (2, 3, 5, 6, 2a) protrude and close this tight.
- Heat exchanger arrangement according to claim 14, characterized in that that the outer contours of the termination sections the corresponding inner contours of the side areas of Flow boxes (2, 3, 5, 6, 2a) are adapted.
- Heat exchanger arrangement according to the preamble of the claim 13 or according to any one of claims 13 to 15, characterized characterized in that the at least two heat exchangers have common, over the total depth of the ribs / tube block having extending ribs (27, 28).
- Heat exchanger arrangement according to the preamble of claim 13 or according to one of the preceding claims, characterized in that the flat tubes (F) of at least one rib / tube block each form at least two parallel flow channels (F S1 , F S2 ).
- Heat exchanger arrangement according to the preamble of the claim 13 or according to any one of the preceding claims, characterized characterized in that the flow boxes (34, 35) of the at least two heat exchangers with connecting pieces (36, 37) are provided, which are parallel to each other and curved in the same direction are.
- Heat exchanger arrangement according to one of claims 13 to 18, characterized in that insulation gaps between the tubes (21b, 24b; 21c, 22c, 24c; 30, 31, 32) and / or the flow boxes (2a, 13a; 33, 34, 35) (SP 1 , SP 2 , SP 3 , SP 4 ) are arranged.
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
- Fig. 1
- zeigt eine Frontansicht einer Ausführungsform einer erfindungsgemäßen Wärmeübertrageranordnung, die aus drei unterschiedlichen Wärmeübertragern zusammengesetzt ist,
- Fig. 2
- eine Seitenansicht der Wärmeübertrageranordnung nach Fig. 1,
- Fig. 3
- ein gemeinsames Seitenteil für die Wärmeübertrageranordnung nach den Fig. 1 und 2,
- Fig. 4
- eine Ansicht des Seitenteiles nach Fig. 3 in Richtung des Pfeiles IV in Fig. 3,
- Fig. 5
- einen Schnitt durch die Wärmeübertrageranordnung nach den Fig. 1 und 2 entlang der Schnittlinie V-V in Fig. 2,
- Fig. 6
- einen Schnitt durch eine weitere Wärmeübertrageranordnung nach Fig. 7 entlang der Schnittlinie VI-VI in Fig. 7,
- Fig. 7
- eine Seitenansicht der weiteren Wärmeübertrageranordnung, die zwei unterschiedliche Wärmeübertrager mit einem gemeinsamen Seitenteil aufweist,
- Fig. 8
- einen Längsschnitt durch die Wärmeübertrageranordnung nach Fig. 7,
- Fig. 9
- schematisch einen Querschnitt auf Höhe eine Rippen/ Rohrblockes durch eine Wärmeübertrageranordnung ähnlich den Fig. 7 und 8,
- Fig. 10
- einen weiteren schematischen Querschnitt durch eine Wärmeübertrageranordnung ähnlich den Fig. 1, 2 und 5 im Bereich eines gemeinsamen Rippen/Rohrblockes,
- Fig. 11
- einen Längsschnitt durch eine weitere Ausführungsform einer erfindungsgemäßen Wärmeübertrageranordnung mit drei unterschiedlichen Wärmeübertragern, die strömungsgünstig und symmetrisch angeordnete Anschlußstutzen aufweisen,
- Fig. 12
- schematisch einen Ausschnitt eines Rippen/Rohrblockes im Bereich aufgeweiteter Rohrenden,
- Fig. 13
- einen weiteren Ausschnitt eines Rippen/Rohrblockes ähnlich Fig. 12 mit asymmetrisch aufgeweiteten Rohrenden,
- Fig. 14
- einen Ausschnitt eines Flachrohres gemäß Fig. 12 im Bereich seines aufgeweiteten Rohrendes,
- Fig. 15
- schematisch einen Schnitt durch einen als Strömungskasten dienenden Wasserkasten, der auf aufgeweitete Rohrenden von Flachrohren aufgesetzt ist,
- Fig. 16
- eine Draufsicht auf das Flachrohr nach Fig. 14 in Richtung des Pfeiles XVI in Fig. 14,
- Fig. 16a
- einen vergrößerten Ausschnitt des Flachrohres nach Fig. 16 in dem Bereich XVIa in Fig. 16,
- Fig. 17
- eine weitere Draufsicht in Fig. 16, jedoch auf ein asymmetrisch aufgeweitetes Flachrohr,
- Fig. 18
- einen Schnitt durch das Flachrohr gemäß Fig. 14 entlang der Schnittlinie XVIII in Fig. 14,
- Fig. 19
- einen Schnitt durch ein weiteres Flachrohr ähnlich Fig. 18,
- Fig. 20
- einen Schnitt durch das Flachrohr nach Fig. 14 im Bereich seines aufgeweiteten Rohrendes entlang der Schnittlinie XX-XX in Fig. 14,
- Fig. 21
- schematisch eine Draufsicht auf aufgeweitete Rohrenden eines Rippen/Rohrblockes,
- Fig. 22
- schematisch aufgeweitete Rohrenden eines weiteren Rippen/Rohrblockes ähnlich Fig. 21,
- Fig. 23
- schematisch eine Draufsicht auf aufgeweitete Rohrenden eines weiteren Rippen/Rohrblockes ähnlich Fig. 21,
- Fig. 24
- schematisch einen Querschnitt durch einen Wärmeübertrager im Bereich aufgeweiteter Rohrenden und eines aufgesetzten Strömungskastens,
- Fig. 25
- schematisch eine Darstellung ähnlich Fig. 24, wobei die formschlüssige Fixierung des Strömungskastens auf den aufgeweiteten Rohrenden anders gestaltet ist,
- Fig. 26
- schematisch aufgeweitete Rohrenden eines weiteren Rippen/Rohrblockes ähnlich den Fig. 21 bis 23, und
- Fig. 27
- schematisch eine Draufsicht auf einen Rippen/Rohrblock mit aufgeweiteten Rohrenden und schräggestellten Flachrohren.
dadurch gekennzeichnet,
daß die einander benachbarten, querverlaufenden Wandungsabschnitte der Rohrenden (A1, A2, A3, A6) formschlüssig aneinanderliegen.
Claims (19)
- Wärmeübertrager für ein Kraftfahrzeug mit einem Rippen/Rohrblock, dessen Flachrohre auf gegenüber liegenden Seiten mit derart aufgeweiteten Rohrenden versehen sind, daß querverlaufende, einander benachbarte Wandungsabschnitte der Rohrenden flächig aneinanderliegen und die Rohrenden in einer Reihe miteinander fluchten, wobei auf die Rohrenden auf beiden Seiten jeweils ein Strömungskasten bündig abschließend mit entsprechenden längsverlaufenden Wandungsabschnitten der Rohrenden aufgesetzt ist, dadurch gekennzeichnet, daß die Ecken der aufgeweiteten Rohrenden (A) mit Radien (Ri, Ra) zwischen 0 und 2 mm versehen sind.
- Wärmeübertrager nach Anspruch 1, dadurch gekennzeichnet, daß die einander benachbarten, querverlaufenden Wandungsabschnitte der Rohrenden (A1, A2, A3, A6) formschlüssig aneinanderliegen.
- Wärmeübertrager nach dem Oberbegriff des Anspruchs 1 oder nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die den Strömungskästen (S1, S2) zugewandten, längsverlaufenden Wandungsabschnitte der Rohrenden (A4, A5) formschlüssig an korrespondierenden Wandungsbereichen der Strömungskästen (S1, S2) anliegen.
- Wärmeübertrager nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die einander zugewandten, querverlaufenden Wandungsabschnitte benachbarter Rohrenden (A2) mit zueinander korrespondierenden, wellen- oder bogenförmigen Krümmungen versehen sind.
- Wärmeübertrager nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die längsverlaufenden Wandungsabschnitte der Rohrenden (A4, A5) mit jeweils wenigstens einer aus der Flucht der Wandungsabschnitte abragenden Krümmung oder Ecke versehen sind, und daß die zugeordneten Wandungsbereiche der Strömungskästen (S1, S2) entsprechend gegensinnig gekrümmt oder gezackt verlaufen.
- Wärmeübertrager nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Rohrende (A5) jeweils asymmetrisch zu einer Mittelebene des zugeordneten Flachrohres (7) aufgeweitet sind.
- Wärmeübertrager nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Umfang der Aufweitung (A) jedes Rohrendes dem Umfang des zugeordneten Flachrohres (F, F1) zuzüglich oder abzüglich 30% entspricht.
- Wärmeübertrager nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Übergangsbereich zwischen der Aufweitung des Rohrendes und einem Flachrohrmantel in einem Winkel (W) zwischen 5° und 90°, vorzugsweise zwischen 25° und 65°, zu dem querseitigen Wandungsabschnitt der Aufweitung geneigt ist.
- Wärmeübertrager nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Erstreckung (L) der querverlaufenden Wandungsabschnitte geringer ist als die Breite (B2) der Flachrohre.
- Wärmeübertrager nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die den benachbarten Rohrenden zugewandten querverlaufenden Wandungsabschnitte eine Höhe (H1) zwischen 0,3 und 2 mal einem Teilungsabstand (T) der Flachrohre, nämlich 0,3T ≤ H1 ≤ 2T aufweisen.
- Wärmeübertrager nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Höhe (H2) der Lötflächen der dem Sammelkasten (S) zugewandten längsverlaufenden Wandungsabschnitte geringer ist als die Höhe (H1) der querverlaufenden Wandungsabschnitte.
- Wärmeübertrager nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Flachrohre (F2) relativ zu Symmetrieachsen der Aufweitungen (A) der Rohrenden schräg verlaufend ausgerichtet sind.
- Wärmeübertrageranordnung für ein Kraftfahrzeug mit wenigstens zwei in Durchströmungsrichtung hintereinander angeordneten Wärmeübertragern nach dem Oberbegriff des Anspruchs 1, dadurch gekennzeichnet, daß den wenigstens zwei Wärmeübertragern auf gegenüberliegenden Seiten jeweils ein gemeinsames Seitenteil (11, 12, 12a) zugeordnet ist.
- Wärmeübertrageranordnung nach Anspruch 13, dadurch gekennzeichnet, daß die Strömungskästen (2, 3, 5, 6, 2a) von wenigstens einem Wärmeübertrager in ihren Seitenbereichen offen gestaltet sind, und daß die gegenüberliegenden Seitenteile (11, 12, 12a) jeweils mit wenigstens einem korrespondierenden Abschlußabschnitt versehen sind, die in die jeweiligen Seitenbereiche der Strömungskästen (2, 3, 5, 6, 2a) hineinragen und diese dicht abschließen.
- Wärmeübertrageranordnung nach Anspruch 14, dadurch gekennzeichnet, daß die Außenkonturen der Abschlußabschnitte an die korrespondierenden Innenkonturen der Seitenbereiche der Strömungskästen (2, 3, 5, 6, 2a) angepaßt sind.
- Wärmeübertrageranordnung nach dem Oberbegriff des Anspruchs 13 oder nach einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, daß die wenigstens zwei Wärmeübertrager gemeinsame, sich über die Gesamttiefe des Rippen/Rohrblockes erstreckende Rippen (27, 28) aufweisen.
- Wärmeübertrageranordnung nach dem Oberbegriff des Anspruchs 13 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Flachrohre (F) wenigstens eines Rippen/Rohrblockes jeweils wenigstens zwei zueinander parallele Strömungskanäle (FS1, FS2) bilden.
- Wärmeübertrageranordnung nach dem Oberbegriff des Anspruchs 13 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Strömungskästen (34, 35) der wenigstens zwei Wärmeübertrager mit Anschlußstutzen (36, 37) versehen sind, die parallel zueinander und gleichsinnig gekrümmt sind.
- Wärmeübertrageranordnung nach einem der Ansprüche 13 bis 18, dadurch gekennzeichnet, daß zwischen den Rohren (21b, 24b; 21c, 22c, 24c; 30, 31,32) und/oder den Strömungskästen (2a, 13a; 33, 34, 35) Isolationsspalte (SP1, SP2, SP3, SP4) angeordnet sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722097 | 1997-05-27 | ||
DE19722097A DE19722097A1 (de) | 1997-05-27 | 1997-05-27 | Wärmeübertrager sowie Wärmeübertrageranordnung für ein Kraftfahrzeug |
EP98107377A EP0881447B1 (de) | 1997-05-27 | 1998-04-23 | Wärmeübertrager sowie Wärmeübertrageranordnung für ein Kraftfahrzeug |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98107377.8 Division | 1998-04-23 | ||
EP98107377A Division EP0881447B1 (de) | 1997-05-27 | 1998-04-23 | Wärmeübertrager sowie Wärmeübertrageranordnung für ein Kraftfahrzeug |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1435503A2 true EP1435503A2 (de) | 2004-07-07 |
EP1435503A3 EP1435503A3 (de) | 2005-10-26 |
EP1435503B1 EP1435503B1 (de) | 2009-02-11 |
Family
ID=7830602
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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EP98107377A Expired - Lifetime EP0881447B1 (de) | 1997-05-27 | 1998-04-23 | Wärmeübertrager sowie Wärmeübertrageranordnung für ein Kraftfahrzeug |
EP04008664A Expired - Lifetime EP1435503B1 (de) | 1997-05-27 | 1998-04-23 | Wärmeübertrager sowie Wärmeübertrageranordnung für ein Kraftfahrzeug |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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EP98107377A Expired - Lifetime EP0881447B1 (de) | 1997-05-27 | 1998-04-23 | Wärmeübertrager sowie Wärmeübertrageranordnung für ein Kraftfahrzeug |
Country Status (5)
Country | Link |
---|---|
US (1) | US6012512A (de) |
EP (2) | EP0881447B1 (de) |
JP (1) | JPH1114271A (de) |
DE (3) | DE19722097A1 (de) |
ES (1) | ES2226025T3 (de) |
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- 1998-04-23 DE DE59811818T patent/DE59811818D1/de not_active Expired - Fee Related
- 1998-04-23 DE DE59814344T patent/DE59814344D1/de not_active Expired - Lifetime
- 1998-04-23 ES ES98107377T patent/ES2226025T3/es not_active Expired - Lifetime
- 1998-04-23 EP EP04008664A patent/EP1435503B1/de not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
EP0881447B1 (de) | 2004-08-18 |
EP1435503A3 (de) | 2005-10-26 |
DE19722097A1 (de) | 1998-12-03 |
EP0881447A2 (de) | 1998-12-02 |
US6012512A (en) | 2000-01-11 |
EP0881447A3 (de) | 1999-06-23 |
EP1435503B1 (de) | 2009-02-11 |
DE59811818D1 (de) | 2004-09-23 |
DE59814344D1 (de) | 2009-03-26 |
ES2226025T3 (es) | 2005-03-16 |
JPH1114271A (ja) | 1999-01-22 |
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