EP1769207B1 - Plate heat exchanger - Google Patents

Plate heat exchanger Download PDF

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Publication number
EP1769207B1
EP1769207B1 EP05770113A EP05770113A EP1769207B1 EP 1769207 B1 EP1769207 B1 EP 1769207B1 EP 05770113 A EP05770113 A EP 05770113A EP 05770113 A EP05770113 A EP 05770113A EP 1769207 B1 EP1769207 B1 EP 1769207B1
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EP
European Patent Office
Prior art keywords
heat exchanger
plate heat
plates
ducts
housing
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.)
Not-in-force
Application number
EP05770113A
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German (de)
French (fr)
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EP1769207A1 (en
Inventor
Michael Seils
Hans Weitzenbürger
Monika Koschmann
Beate Rosner
Ewald Schneider
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Deutz AG
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Deutz AG
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Publication of EP1769207A1 publication Critical patent/EP1769207A1/en
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Publication of EP1769207B1 publication Critical patent/EP1769207B1/en
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    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • F28D9/0075—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements the plates having openings therein for circulation of the heat-exchange medium from one conduit to another
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/0075—Supports for plates or plate assemblies

Definitions

  • the invention relates to a plate heat exchanger, in particular for reciprocating internal combustion engines, with a number of guide channels for a fluid, which are connected in parallel to each other by collecting ducts, wherein the guide channels have a pair of plates which are sealingly connected at their edges, wherein in the area the collecting channels between the plates within the guide channels spacers and outside the guide channels spacers are provided and wherein the collecting ducts are sealingly connected to fluid channels in a housing and closed at the opposite end and the plate heat exchanger by means of screws on the housing can be fastened.
  • Such a plate heat exchanger is from the EP 0 470 200 B1 known.
  • the plates in a plan view have a substantially rectangular shape, which are rounded at the narrow sides.
  • spacers and spacers are provided between the plates, which connect to the plates in the region of the collecting ducts End sheets.
  • Both the end plates and the spacers and spacers fill the arcuate narrow sides of the plates completely and have through holes for screws, with which the plate heat exchanger to an internal combustion engine or a housing of an internal combustion engine can be screwed.
  • the plate heat exchanger is arranged on the internal combustion engine or on a housing in such a way that it flows through in the longitudinal direction, then the plates with spacers and spacers filling the full width of the heat exchanger form a broad barrier for the liquid flowing in on the narrow side of the heat exchanger so that even if the lid of the housing is laterally expanded, an unfavorable flow through the plate heat exchanger is given, the heat exchanger performance is impaired.
  • the plate heat exchanger by the leading through the complete heat exchanger holes, which also lead through the guide channels forming plates firmly clamped to the housing or the engine, so that thermal stresses can occur, which then affect the life of the plate heat exchanger.
  • the object of the invention is to improve a generic plate heat exchanger to the effect that it provides a higher heat exchanger performance available, especially if it is passed longitudinally. He should continue to be sealing, but not so rigidly arranged on the housing or the internal combustion engine that stresses arise. Finally, he should also be cheaper to manufacture.
  • the object of the invention is achieved in that the plates in the direction of the collecting channels in their dimensions are tapered are formed and that in addition to the collecting channels outside the plates at least one clamping screw is provided.
  • the plate areas surrounding the collecting channels with spacers and the spacers are designed substantially narrow, so that a good flow in the longitudinal direction of the heat exchanger is possible.
  • the plate heat exchanger is pressed sufficiently firmly against the housing or the internal combustion engine, but there is no positive guidance, especially in the area of the sealing surfaces to the fluid channels, which could cause a distortion of the plate heat exchanger.
  • the yoke plate can be placed externally both during installation on the plate heat exchanger, but it can also be attached to the plate heat exchanger, in particular soldered. The distance of the screw holes in the yoke plate is so far away from the sealing surfaces between the plate heat exchanger and the housing or the internal combustion engine, that no adjustment is to be feared.
  • the yoke plate may each be provided on the housing facing the ends of the collecting channels a mounting plate and connected to the plate heat exchanger.
  • This mounting plate serves to seal and secure the heat exchanger to the housing.
  • the mounting plates also have lateral Eyelets in which short screws are arranged. Even if this causes the fastening plates to be bolted to the housing and a certain forced fastening takes place, the freely movable PJatt heat exchanger arranged above it nevertheless has sufficient possibilities for stretching and deformation.
  • the plates as seen in plan view, have substantially parallel outer edges, from which taper edges originate on both sides.
  • the angle between the parallel outer walls and the tapering edges is approximately 20 to 30 degrees, in particular 25 degrees, and the tapering edges extend to a radius of between 18 and 28 mm, preferably 23 mm, around the axis of the collecting channels.
  • the plate heat exchanger has at the housing end of the collecting ducts depending on a sealing plate when using yoke plates and long screws or a respective mounting plate, which can be brought into operative connection with at least one mounted on the housing sealing ring.
  • the sealing plates and the mounting plates are sealingly connected to the plate heat exchanger, preferably soldered to it.
  • a sealing surface is provided which permits different expansions between the plate heat exchanger and the housing.
  • the adjoining the collecting channels openings in the sealing plates are each smaller than the dimensions of the associated fluid channels in the housing, so that it does not depend on a precise alignment of the opening in the sealing plate with respect to the dimensions of the fluid channel.
  • the opening in the sealing plate is sufficiently large to ensure good flow through the plate heat exchanger.
  • the dimensions of the fluid channel are therefore oversized for the amount of fluid passing through.
  • the circular-cylindrical fluid channel has a diameter of 28 mm when a circular cylindrical opening in the sealing plate or a circular cylindrical cross section of the collecting ducts have a diameter of 20 mm.
  • a bridge is provided outside the closed ends of the collecting ducts, which is fastened by means of screws to the housing.
  • the bridge is a one-piece fastening part, which preferably rests on the upper plate of the plate heat exchanger and can be particularly easily aligned, for example by appropriate design of the bridge with centering to the plate heat exchanger.
  • this bridge is attached to the housing with four screws, but it may optionally be sufficient to provide only two diagonally opposite screws on the collecting channels.
  • the attachment of the plate heat exchanger with above the upper flap arranged yoke plates or the bridge also has the advantage that correspondingly long screws are used, which also have a corresponding large elongation. This large stretch provides high security against loosening the screws during normal operation.
  • a spring element is provided outside the closed ends of the collecting ducts, which is supported on a lid covering the plate heat exchanger and presses the plate heat exchanger against the housing.
  • This spring element can be provided centrally in the middle of the plate heat exchanger between the two collection channels.
  • two spring elements are provided which are each arranged in the region of the collecting ducts between the uppermost plate of the plate heat exchanger and the lid.
  • the one or more spring elements are preferably fixed to the plate heat exchanger or the lid by a suitable device, so that during assembly a defined position is ensured.
  • the length of the spring elements is dimensioned so that in the unloaded state, the fastening screws of the cover can be inserted straight into the corresponding threaded holes in the housing and exert complete pressure when screwing these screws into the threaded holes, the spring elements such a pressure that the plate heat exchanger firmly against the housing is pressed.
  • the screws which are necessary in the attachment with yoke plates or bridge, can basically be omitted when using the spring element, but it is provided with these screws centering on the housing, the centering cooperate laterally with the sealing plates and a defined mounting position of the Ensure plate heat exchanger.
  • a central fastening element which engages in the fluid channel can be used in each collecting channel.
  • This fastener is inserted through the collecting channel of the side facing away from the housing, in which case, of course, at this point - ie in the top plate - an opening is provided which is closed after installation with a sealing plug.
  • the fastener may be formed as a hollow screw, which on a support flange of the bottom plate rests. Alternatively, the screw may extend through the entire collection channel and be supported on the outside of the top plate. In this embodiment, the otherwise required lid can be integrated into the hollow screw. For an unobstructed flow of oil between the collecting channels and the cooling chambers of the plate heat exchanger corresponding transfer openings are embedded in the hollow screw.
  • This design also has the advantage that - as in the attachment with at least one spring element - the flow around the plate heat exchanger with cooling water is further improved because no flow disturbing screws traverse the entire cooling water space. Also in this embodiment, it is provided with the correspondingly smaller sized screws centering on the housing, the centering laterally interact with the sealing plates and ensure a defined mounting position of the plate heat exchanger. This ensures that the banjo bolts can be easily mounted.
  • guide devices are attached to the plate heat exchanger, for example in the form of catch plates, which are aligned with the flow channel from which the cooling liquid is supplied.
  • These guide devices are designed so that they cause a particularly intensive and efficient flow through the plate heat exchanger with the liquid.
  • the guide devices may be formed straight or laterally biased on the lid, so that the liquid supplied is inevitably passed through the plate heat exchanger.
  • the length of the guide devices is optimized depending on the design.
  • 1 generally designates a plate heat exchanger which has a larger number of guide channels designated 2, which are composed of plates 3a and 3b.
  • the guide channels 2 are connected to each other at the ends of the plates 3a and 3b by means of collecting channels 4a and 4b, so that the guide channels are fluidly connected in parallel with each other.
  • spacers 5 are inserted within the guide channels and spacers 6 are provided between the plates 3 a and 3 b outside the guide channels.
  • the plates 3a and 3b, the spacers 5 and the spacers 6 are connected to each other soldered, so that results in a compact plate heat exchanger.
  • the plates 3a and 3b have on the surfaces of the plates distributed nubs 7, which serve to increase the stability and the improvement of the heat transfer between the liquid flowing around the plate heat exchanger 1 and the fluid flowing through the plate heat exchanger 1.
  • a yoke plate 10 is soldered to the plate 3a, wherein on the opposite side in the region of the collecting channels 4a and 4b each a yoke plate 10 is soldered.
  • the yoke plate 10 has lateral eyelets, which project beyond the collecting channels 4a and 4b. Through the eyelets screws 11 are guided, which are screwed in a designated 12 housing of an internal combustion engine, not shown.
  • a fluid channel 13 is formed in each case, which is connected to a fluid circuit, not shown, of the internal combustion engine.
  • a fluid circuit not shown, of the internal combustion engine.
  • O-rings 14a and 14b are used around the fluid channels 13 around 12 grooves. These O-rings 14a and 14b are in operative connection with the sealing plates 9, so that in conjunction with the bias of the screws 11, a tight connection of the collecting channels 4a and 4b to the fluid channels 13 results.
  • the cross sections of the fluid channels 13 are larger than the cross sections of the collecting channels 4a and 4b or the openings in the sealing plates 9, so that mounting tolerances between the plate heat exchanger 1 and the housing 12 and different strains can be compensated for each other.
  • flow channels 15 are incorporated in the housing, through which a liquid is supplied and removed, which flows around the plate heat exchanger 1 on its outer surfaces.
  • Narrower spacers within the guide channels and narrow spacers outside the guide channels result due to the tapered edges denoted 16, which are contracted with respect to the outer edges 17 of the plates 3a and 3b to a small radius of the plates in the region of the collecting channels 4a and 4b only a relatively thin column of the liquid from the flow channels 15 opposes and a favorable flow along the plate heat exchanger 1 is given.
  • the screws 11 impede the flow only slightly, as between the screws and the spacers 6 (see Fig. 3 , left side) passages still exist.
  • the plate heat exchanger is surrounded by a cover 18 which is sealingly connected to the housing 12.
  • Fig. 5 shows the same cut as Fig. 4 , here in addition to the plate heat exchanger 1 to the outer edges 17 side and / or upper guide devices 20 are mounted, which are aligned with the feeding flow channel 15 in.
  • the guide devices 21 can - as shown - be formed straight or also create the side walls or the roof wall of the lid 18 under tension.
  • Fig. 6 shows an alternative method of attachment, wherein the plate heat exchanger 1 by a spring member 19 which is disposed between the plate heat exchanger 1 and the upper part of the lid 18, is pressed against the housing 12.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Polarising Elements (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

The invention relates to a plate heat exchanger (1) comprising a plurality of fluid guide channels (2) which are mounted in a parallel position with respect to each other through collecting channels (4a, 4b), wherein said guide channels (2) have a pair of plates (3a, 3b) which a mutually sealingly assembled by the edges thereof, distance pieces are provided in the collecting channels (4a, 4b) area between the plates (3a, 3b) inside the guide channels (2), spacers (6) are provided outside of said guide channels (2), the collecting channels (4a, 4b) are sealingly connectable to fluid channels (13) in a housing (12) and are closed on the opposite ends, the plate heat exchanger (1) is fixable to the housing (12) by means of screws (11), the plates (3a, 3b) are embodied in such a way that they dimensionally taper in the direction of the collecting channels (4a, 4b) and at least one screw (11) is provided near said collecting channels (4a, 4b) externally with respect to the plates (3a, 3b), respectively.

Description

Die Erfindung bezieht sich auf einen Plattenwärmetauscher, insbesondere für Hubkolbenbrennkraftmaschinen, mit einer Anzahl von Führungskanälen für ein Fluid, die durch Sammelkanäle zueinander parallel geschaltet sind, wobei die Führungskanäle ein Paar von Platten aufweisen, die an ihren Rändern dichtend miteinander verbunden sind, wobei im Bereich der Sammelkanäle zwischen den Platten innerhalb der Führungskanäle Distanzstücke und außerhalb der Führungskanäle Abstandshalter vorgesehen sind und wobei die Sammelkanäle an Fluidkanäle in einem Gehäuse dichtend anschließbar und am gegenüberliegenden Ende verschlossen sind und der Plattenwärmetauscher mittels Schrauben am Gehäuse befestigbar ist.The invention relates to a plate heat exchanger, in particular for reciprocating internal combustion engines, with a number of guide channels for a fluid, which are connected in parallel to each other by collecting ducts, wherein the guide channels have a pair of plates which are sealingly connected at their edges, wherein in the area the collecting channels between the plates within the guide channels spacers and outside the guide channels spacers are provided and wherein the collecting ducts are sealingly connected to fluid channels in a housing and closed at the opposite end and the plate heat exchanger by means of screws on the housing can be fastened.

Ein derartiger Plattenwärmetauscher ist aus der EP 0 470 200 B1 bekannt. Bei diesem Plattenwärmetauscher weisen die Platten in Draufsicht gesehen im Wesentlichen eine Rechteckform auf, die an den Schmalseiten abgerundet sind. Innerhalb dieser Schmalseiten sind zwischen den Platten Distanzstücke und Abstandshalter vorgesehen, wobei sich an die Platten im Bereich der Sammelkanäle Endbleche anschließen. Sowohl die Endbleche als auch die Distanzstücke sowie Abstandshalter füllen die bogenförmigen Schmalseiten der Platten vollständig aus und weisen durchgehende Bohrungen für Schrauben auf, mit denen der Plattenwärmetauscher an einer Brennkraftmaschine oder einem Gehäuse einer Brennkraftmaschine anschraubbar ist.Such a plate heat exchanger is from the EP 0 470 200 B1 known. In this plate heat exchanger, the plates in a plan view have a substantially rectangular shape, which are rounded at the narrow sides. Within these narrow sides spacers and spacers are provided between the plates, which connect to the plates in the region of the collecting ducts End sheets. Both the end plates and the spacers and spacers fill the arcuate narrow sides of the plates completely and have through holes for screws, with which the plate heat exchanger to an internal combustion engine or a housing of an internal combustion engine can be screwed.

Ist der Plattenwärmetauscher so an der Brennkraftmaschine bzw. an einem Gehäuse angeordnet, dass er in Längsrichtung durchströmt wird, so bilden die die volle Breite des Wärmetauschers ausfüllenden Platten mit Distanzstücken und Abstandshalter in ihrer Summe eine breite Barriere für die den Wärmetauscher auf seiner Schmalseite anströmenden Flüssigkeit, so dass selbst dann, wenn der Deckel des Gehäuses seitlich erweitert ist, eine ungünstige Durchströmung des Plattenwärmetauschers gegeben ist, wobei die Wärmetauscherleistung beeinträchtigt ist.If the plate heat exchanger is arranged on the internal combustion engine or on a housing in such a way that it flows through in the longitudinal direction, then the plates with spacers and spacers filling the full width of the heat exchanger form a broad barrier for the liquid flowing in on the narrow side of the heat exchanger so that even if the lid of the housing is laterally expanded, an unfavorable flow through the plate heat exchanger is given, the heat exchanger performance is impaired.

Weiterhin ist der Plattenwärmetauscher durch die durch den kompletten Wärmetauscher führenden Bohrungen, die auch durch die die Führungskanäle bildenden Platten führen, fest mit dem Gehäuse oder der Brennkraftmaschine verspannt, so dass Wärmespannungen entstehen können, die dann die Lebensdauer des Plattenwärmetauschers beeinträchtigen.Furthermore, the plate heat exchanger by the leading through the complete heat exchanger holes, which also lead through the guide channels forming plates firmly clamped to the housing or the engine, so that thermal stresses can occur, which then affect the life of the plate heat exchanger.

Weiterhin müssen auch die Schrauben abgedichtet werden, da sie durch die inneren Räume des Plattenwärmetauschers führen.Furthermore, the screws must be sealed as they pass through the internal spaces of the plate heat exchanger.

Schließlich ist es aufwendig, die den kompletten Wärmetauscher durchdringenden Bohrungen für die Schrauben herzustellen.Finally, it is expensive to produce the complete heat exchanger penetrating holes for the screws.

Aufgabe der Erfindung ist es, einen gattungsbildenden Plattenwärmetauscher dahingehend zu verbessern, dass er eine höhere Wärmetauscherleistung zur Verfügung stellt, insbesondere wenn er längsdurchströmt ist. Er soll weiterhin zwar dichtend, aber nicht so starr am Gehäuse oder der Brennkraftmaschine angeordnet sein, dass Spannungen entstehen. Schließlich soll er auch preisgünstiger in der Herstellung sein.The object of the invention is to improve a generic plate heat exchanger to the effect that it provides a higher heat exchanger performance available, especially if it is passed longitudinally. He should continue to be sealing, but not so rigidly arranged on the housing or the internal combustion engine that stresses arise. Finally, he should also be cheaper to manufacture.

Die Aufgabe der Erfindung wird dadurch gelöst, dass die Platten in Richtung zu den Sammelkanälen in ihren Abmessungen sich verjüngend ausgebildet sind und dass neben den Sammelkanälen außerhalb der Platten zumindest je eine Spannschraube vorgesehen ist. Durch diese Ausgestaltung wird erreicht, dass die die Sammelkanäle umgebenden Plattenbereiche mit Distanzstücken und die Abstandshalter wesentlich schmäler ausgeführt sind, so dass eine gute Durchströmung in Längsrichtung des Wärmetauschers möglich ist. Dazu trägt sowohl die Verjüngung der Platten auf das für die Sammelkanäle erforderliche Mindestmaß bei als auch die Anordnung einer oder mehrerer Schrauben außerhalb der Schmalseite der Platten, die der den Plattenwärmetauscher längs durchströmenden Flüssigkeit nur einen geringen Strömungswiderstand entgegensetzen.The object of the invention is achieved in that the plates in the direction of the collecting channels in their dimensions are tapered are formed and that in addition to the collecting channels outside the plates at least one clamping screw is provided. By this configuration it is achieved that the plate areas surrounding the collecting channels with spacers and the spacers are designed substantially narrow, so that a good flow in the longitudinal direction of the heat exchanger is possible. Contributes to both the taper of the plates to the minimum required for the collection channels and the arrangement of one or more screws outside the narrow side of the plates, which oppose the plate heat exchanger along the liquid flowing through only a low flow resistance.

In vorteilhafter Weise weist der Plattenwärmetauscher außerhalb der verschlossenen Enden der Sammelkanäle, also auf der der Anschlussstelle an die Fluidkanäle entgegengesetzten Seite, je eine Jochplatte auf, die mittels zweier Schrauben am Gehäuse befestigt ist. Dadurch wird der Plattenwärmetauscher hinreichend fest gegen das Gehäuse bzw. die Brennkraftmaschine gepresst, es entsteht aber keine Zwangsführung, insbesondere im Bereich der Dichtflächen zu den Fluidkanälen, die eine Verspannung des Plattenwärmetauschers verursachen könnte. Die Jochplatte kann sowohl bei der Montage auf den Plattenwärmetauscher außen aufgelegt werden, sie kann aber auch am Plattenwärmetauscher befestigt, insbesondere angelötet sein. Der Abstand der Schraubenlöcher in der Jochplatte ist dabei so weit von den Dichtflächen zwischen dem Plattenwärmetauscher und dem Gehäuse bzw. der Brennkraftmaschine entfernt, dass keine Verpassung zu befürchten ist.Advantageously, the plate heat exchanger outside the closed ends of the collecting ducts, ie on the opposite side of the connection to the fluid channels, each a yoke plate, which is fastened by means of two screws on the housing. As a result, the plate heat exchanger is pressed sufficiently firmly against the housing or the internal combustion engine, but there is no positive guidance, especially in the area of the sealing surfaces to the fluid channels, which could cause a distortion of the plate heat exchanger. The yoke plate can be placed externally both during installation on the plate heat exchanger, but it can also be attached to the plate heat exchanger, in particular soldered. The distance of the screw holes in the yoke plate is so far away from the sealing surfaces between the plate heat exchanger and the housing or the internal combustion engine, that no adjustment is to be feared.

An Stelle der Jochplatte kann an den dem Gehäuse zugewandten Enden der Sammelkanäle je eine Befestigungsplatte vorgesehen und mit dem Plattenwärmetauscher verbunden sein. Diese Befestigungsplatte dient der Abdichtung und der Befestigung des Wärmetauschers am Gehäuse. Die Befestigungsplatten weisen ebenfalls seitliche Ösen auf, in denen kurze Schrauben angeordnet sind. Auch wenn dadurch die Befestigungsplatten mit dem Gehäuse verschraubt sind und eine gewisse Zwangsfestlegung erfolgt, hat der darüber angeordnete und frei bewegliche PJattenwärmetauscher doch hinreichende Möglichkeiten zur Dehnung und Verformung.Instead of the yoke plate may each be provided on the housing facing the ends of the collecting channels a mounting plate and connected to the plate heat exchanger. This mounting plate serves to seal and secure the heat exchanger to the housing. The mounting plates also have lateral Eyelets in which short screws are arranged. Even if this causes the fastening plates to be bolted to the housing and a certain forced fastening takes place, the freely movable PJatt heat exchanger arranged above it nevertheless has sufficient possibilities for stretching and deformation.

In weiterer Ausgestaltung der Erfindung wird vorgeschlagen, dass die Platten, in Draufsicht gesehen, im Wesentlichen parallel verlaufende Außenränder aufweisen, von denen aus beidseitig Verjüngungsränder ausgehen. In vorteilhafter Weise ist der Winkel zwischen den parallelen Außenwänden und den Verjüngungsrändern ca. 20 bis 30°, insbesondere 25° und die Verjüngungsränder laufen in einen Radius zwischen 18 und 28 mm, vorzugsweise 23 mm, um die Achse der Sammelkanäle aus. Dadurch wird ein hinreichender Querschnitt für die Sammelkanäle und auch eine hinreichende Druckfestigkeit im Bereich der Sammelkanäle erreicht und trotzdem nur eine der Flüssigkeit entgegengerichtete Säule von ca. 46 mm Breite erzeugt, so dass seitliche daneben auf beiden Seiten ein hinreichender Strömungsquerschnitt zur Verfügung gestellt wird, der nur dann, wenn lange Schrauben vorgesehen sind, durch diese relativ dünne Schrauben beeinträchtigt wird. Bei kurzen Schrauben in Verbindung mit den Befestigungsplatten erfolgt überhaupt keine Beeinträchtigung.In a further embodiment of the invention, it is proposed that the plates, as seen in plan view, have substantially parallel outer edges, from which taper edges originate on both sides. Advantageously, the angle between the parallel outer walls and the tapering edges is approximately 20 to 30 degrees, in particular 25 degrees, and the tapering edges extend to a radius of between 18 and 28 mm, preferably 23 mm, around the axis of the collecting channels. As a result, a sufficient cross section for the collecting ducts and also a sufficient compressive strength in the area of the collecting ducts is achieved and nevertheless only one column of the approximate 46 mm width of the liquid is produced, so that a sufficient flow cross-section is provided on both sides alongside the liquid only if long screws are provided, is affected by these relatively thin screws. With short screws in conjunction with the mounting plates there is no impairment at all.

Der Plattenwärmetauscher weist am gehäuseseitigen Ende der Sammelkanäle je eine Dichtplatte bei Verwendung von Jochplatten und langen Schrauben oder je eine Befestigungsplatte auf, die mit zumindest je einem am Gehäuse gelagerten Dichtring in Wirkverbindung gebracht werden kann. Die Dichtplatten und die Befestigungsplatten sind dichtend mit dem Plattenwärmetauscher verbunden, vorzugsweise mit diesem verlötet. Dadurch wird eine Dichtfläche zur Verfügung gestellt, die unterschiedliche Dehnungen zwischen Plattenwärmetauscher und Gehäuse zulässt. Um eine einfache Montage mit geringem Justieraufwand zur Verfügung zu stellen, wird vorgeschlagen, dass die an die Sammelkanäle anschließenden Öffnungen in den Dichtplatten jeweils kleiner sind als die Abmessungen der zugeordneten Fluidkanäle im Gehäuse, so dass es auf ein genaues Fluchten der Öffnung in der Dichtplatte gegenüber den Abmessungen des Fluidkanals nicht ankommt. Es ist für den Fachmann dabei natürlich klar, dass die Öffnung in der Dichtplatte hinreichend groß ist, um eine gute Durchströmung des Plattenwärmetauschers zu gewährleisten. Die Abmessungen des Fluidkanals sind daher für die durchtretende Fluidmenge überdimensioniert.The plate heat exchanger has at the housing end of the collecting ducts depending on a sealing plate when using yoke plates and long screws or a respective mounting plate, which can be brought into operative connection with at least one mounted on the housing sealing ring. The sealing plates and the mounting plates are sealingly connected to the plate heat exchanger, preferably soldered to it. As a result, a sealing surface is provided which permits different expansions between the plate heat exchanger and the housing. In order to provide a simple assembly with little adjustment effort, it is proposed that the adjoining the collecting channels openings in the sealing plates are each smaller than the dimensions of the associated fluid channels in the housing, so that it does not depend on a precise alignment of the opening in the sealing plate with respect to the dimensions of the fluid channel. Of course, it is clear to the person skilled in the art that the opening in the sealing plate is sufficiently large to ensure good flow through the plate heat exchanger. The dimensions of the fluid channel are therefore oversized for the amount of fluid passing through.

Es hat sich als günstig und ausreichend erwiesen, wenn der kreiszylindrisch geformt Fluidkanal einen Durchmesser von 28 mm hat, wenn eine kreiszylindrische Öffnung in der Dichtplatte bzw. ein kreiszylindrischer Querschnitt der Sammelkanäle einen Durchmesser von 20 mm aufweisen.It has proved to be favorable and sufficient if the circular-cylindrical fluid channel has a diameter of 28 mm when a circular cylindrical opening in the sealing plate or a circular cylindrical cross section of the collecting ducts have a diameter of 20 mm.

In weiterer Ausgestaltung der Erfindung ist außerhalb der verschlossenen Enden der Sammelkanäle eine Brücke vorgesehen, die mittels Schrauben am Gehäuse befestigt ist. Die Brücke ist ein einstückiges Befestigungsteil, das vorzugsweise auf der oberen Platte des Plattenwärmetauschers aufliegt und beispielsweise durch entsprechende Ausgestaltung der Brücke mit Zentriervorrichtungen besonders leicht zu dem Plattenwärmetauscher ausgerichtet werden kann. Bevorzugt ist diese Brücke mit vier Schrauben an dem Gehäuse befestigt, es kann gegebenenfalls aber auch ausreichend sein, nur zwei diagonal gegenüberliegende Schrauben an den Sammelkanälen vorzusehen. Die Befestigung des Plattenwärmetauschers mit oberhalb der oberen Patte angeordneten Jochplatten beziehungsweise der Brücke hat auch den Vorteil, dass entsprechend lange Schrauben zum Einsatz kommen, die entsprechend auch eine große Dehnlänge aufweisen. Diese große Dehnlänge bietet eine hohe Sicherheit gegen ein Lösen der Schrauben im normalen Betrieb.In a further embodiment of the invention, a bridge is provided outside the closed ends of the collecting ducts, which is fastened by means of screws to the housing. The bridge is a one-piece fastening part, which preferably rests on the upper plate of the plate heat exchanger and can be particularly easily aligned, for example by appropriate design of the bridge with centering to the plate heat exchanger. Preferably, this bridge is attached to the housing with four screws, but it may optionally be sufficient to provide only two diagonally opposite screws on the collecting channels. The attachment of the plate heat exchanger with above the upper flap arranged yoke plates or the bridge also has the advantage that correspondingly long screws are used, which also have a corresponding large elongation. This large stretch provides high security against loosening the screws during normal operation.

In alternativer Ausgestaltung ist außerhalb der verschlossenen Enden der Sammelkanäle ein Federelement vorgesehen, das sich an einen den Plattenwärmetauscher überdeckenden Deckel abstützt und den Plattenwärmetauscher gegen das Gehäuse presst. Dieses Federelement kann zentral in der Mitte des Plattenwärmetauschers zwischen den beiden Sammelkanälen vorgesehen sein. Bevorzugt sind aber zwei Federelemente vorgesehen, die jeweils im Bereich der Sammelkanäle zwischen der obersten Platte des Plattenwärmetauschers und dem Deckel angeordnet sind. Das oder die Federelemente sind bevorzugt an dem Plattenwärmetauscher oder dem Deckel durch eine geeignete Vorrichtung festlegbar, so dass bei der Montage eine definierte Stellung gewährleistet ist. Die Länge der Federelemente ist so bemessen, dass im entlasteten Zustand die Befestigungsschrauben des Deckels gerade in die entsprechenden Gewindelöcher in dem Gehäuse eingesetzt werden können und beim vollständigen Eindrehen dieser Schrauben in die Gewindelöcher die Federelemente einen solchen Druck ausüben, dass der Plattenwärmetauscher fest gegen das Gehäuse gepresst wird. Die Schrauben, die bei der Befestigung mit Jochplatten oder Brücke notwendig sind, können bei der Verwendung des Federelements grundsätzlich entfallen, es ist aber vorgesehen mit diesen Schrauben Zentrierelemente auf dem Gehäuse zu befestigen, wobei die Zentrierelemente seitlich mit den Dichtplatten zusammenwirken und eine definierte Montageposition des Plattenwärmetauscher gewährleisten.In an alternative embodiment, a spring element is provided outside the closed ends of the collecting ducts, which is supported on a lid covering the plate heat exchanger and presses the plate heat exchanger against the housing. This spring element can be provided centrally in the middle of the plate heat exchanger between the two collection channels. Preferably, however, two spring elements are provided which are each arranged in the region of the collecting ducts between the uppermost plate of the plate heat exchanger and the lid. The one or more spring elements are preferably fixed to the plate heat exchanger or the lid by a suitable device, so that during assembly a defined position is ensured. The length of the spring elements is dimensioned so that in the unloaded state, the fastening screws of the cover can be inserted straight into the corresponding threaded holes in the housing and exert complete pressure when screwing these screws into the threaded holes, the spring elements such a pressure that the plate heat exchanger firmly against the housing is pressed. The screws, which are necessary in the attachment with yoke plates or bridge, can basically be omitted when using the spring element, but it is provided with these screws centering on the housing, the centering cooperate laterally with the sealing plates and a defined mounting position of the Ensure plate heat exchanger.

Schließlich kann in alternativer Ausgestaltung in jedem Sammelkanal ein zentrales Befestigungselement eingesetzt sein, das in den Fluidkanal eingreift. Dieses Befestigungselement wird durch den Sammelkanal von der dem Gehäuse abgewandten Seite eingesetzt, wobei dann selbstverständlich an dieser Stelle - also in der obersten Platte - eine Öffnung vorgesehen ist, die nach erfolgter Montage mit einem Verschlussstopfen verschlossen wird. Das Befestigungselement kann als Hohlschraube ausgebildet sein, die auf einem Stützflansch der untersten Platte aufliegt. Alternativ kann die Schraube sich auch durch den gesamten Sammelkanal erstrecken und außen auf der obersten Platte abstützen. Bei dieser Ausgestaltung kann der sonst erforderliche Deckel in die Hohlschraube integriert sein. Für einen ungehinderten Ölfluss zwischen den Sammelkanälen und den Kühlräumen des Plattenwärmetauschers sind entsprechende Übertrittsöffnungen in die Hohlschraube eingelassen. Diese Ausbildung hat zudem den Vorteil, dass - wie bei der Befestigung mit zumindest einem Federelement - die Umströmung des Plattenwärmetauschers mit Kühlwasser weiter verbessert wird, da keine strömungsstörenden Schrauben den gesamten Kühlwasserraum durchqueren. Auch bei dieser Ausgestaltung es ist aber vorgesehen mit den entsprechend kleiner dimensionierten Schrauben Zentrierelemente auf dem Gehäuse zu befestigen, wobei die Zentrierelemente seitlich mit den Dichtplatten zusammenwirken und eine definierte Montageposition des Plattenwärmetauscher gewährleisten. Damit ist sichergestellt, dass die Hohlschrauben problemlos montiert werden können.Finally, in an alternative embodiment, a central fastening element which engages in the fluid channel can be used in each collecting channel. This fastener is inserted through the collecting channel of the side facing away from the housing, in which case, of course, at this point - ie in the top plate - an opening is provided which is closed after installation with a sealing plug. The fastener may be formed as a hollow screw, which on a support flange of the bottom plate rests. Alternatively, the screw may extend through the entire collection channel and be supported on the outside of the top plate. In this embodiment, the otherwise required lid can be integrated into the hollow screw. For an unobstructed flow of oil between the collecting channels and the cooling chambers of the plate heat exchanger corresponding transfer openings are embedded in the hollow screw. This design also has the advantage that - as in the attachment with at least one spring element - the flow around the plate heat exchanger with cooling water is further improved because no flow disturbing screws traverse the entire cooling water space. Also in this embodiment, it is provided with the correspondingly smaller sized screws centering on the housing, the centering laterally interact with the sealing plates and ensure a defined mounting position of the plate heat exchanger. This ensures that the banjo bolts can be easily mounted.

In weiterer Ausgestaltung sind an den Plattenwärmetauscher Leitvorrichtungen beispielsweise in Form von Fangblechen angebracht, die zu dem Strömungskanal, aus dem die kühlende Flüssigkeit zugeführt wird, ausgerichtet sind. Diese Leitvorrichtungen sind so ausgelegt, dass sie eine besonders intensive und effiziente Durchströmung des Plattenwärmetauschers mit der Flüssigkeit bewirken. Dabei können die Leitvorrichtungen gerade ausgebildet sein oder aber sich unter Vorspannung seitlich an den Deckel anlegen, so dass die zugeführte Flüssigkeit zwangsläufig durch den Plattenwärmetauscher geleitet wird. Die Länge der Leitvorrichtungen ist je nach der Auslegung optimiert.In a further embodiment, guide devices are attached to the plate heat exchanger, for example in the form of catch plates, which are aligned with the flow channel from which the cooling liquid is supplied. These guide devices are designed so that they cause a particularly intensive and efficient flow through the plate heat exchanger with the liquid. In this case, the guide devices may be formed straight or laterally biased on the lid, so that the liquid supplied is inevitably passed through the plate heat exchanger. The length of the guide devices is optimized depending on the design.

Zur weiteren Erläuterung der Erfindung wird auf die Zeichnungen verwiesen, in denen Ausführungsbeispiele der Erfindung vereinfacht dargestellt sind. Es zeigen:

Fig. 1
eine perspektivische Ansicht eines Plattenwärmetauschers mit eingesetzten Schrauben,
Fig. 2
einen Teilschnitt durch ein Gehäuse mit Deckel einer Brenn- kraftmaschine und Seitenansicht des Plattenwärmetau- schers,
Fig. 3
einen Schnitt durch den Deckel und das Gehäuse mit Teil- schnitt durch den Plattenwärmetauscher gemäß der Linie A- A in Fig. 2,
Fig. 4
eine Teil-Draufsicht auf den Deckel mit gestrichelt darge- stelltem Plattenwärmetauscher,
Fig. 5
eine Teil-Draufsicht auf den Deckel wie Fig. 4, wobei an den Plattenwärmetauscher seitliche Leitvorrichtungen ange- bracht sind und
Fig. 6
einen Schnitt durch den Deckel wie Fig. 3 mit einer alter- nativen Befestigung
For further explanation of the invention reference is made to the drawings, in which embodiments of the invention are shown in simplified form. Show it:
Fig. 1
a perspective view of a plate heat exchanger with inserted screws,
Fig. 2
2 a partial section through a housing with cover of an internal combustion engine and a side view of the plate heat exchanger,
Fig. 3
a section through the lid and the housing with a section through the plate heat exchanger according to the line A- A in Fig. 2 .
Fig. 4
2 is a partial plan view of the lid with a plate heat exchanger shown in dashed lines,
Fig. 5
a partial top view on the lid like Fig. 4 in which lateral guide devices are attached to the plate heat exchanger and
Fig. 6
a cut through the lid like Fig. 3 with an alternative attachment

In den Figuren 1 bis 4 ist, soweit im Einzelnen dargestellt, mit 1 allgemein ein Plattenwärmetauscher bezeichnet, der eine größere Anzahl von mit 2 bezeichneten Führungskanälen aufweist, die aus Platten 3a und 3b zusammengesetzt sind. Die Führungskanäle 2 sind an den Enden der Platten 3a und 3b mittels Sammelkanälen 4a und 4b miteinander verbunden, so dass die Führungskanäle strömungstechnisch gesehen zueinander parallel geschaltet sind. Zwischen den Platten 3a und 3b sind innerhalb der Führungskanäle 2 Distanzstücke 5 eingesetzt und zwischen den Platten 3a und 3b sind außerhalb der Führungskanäle 2 Abstandshalter 6 vorgesehen. Die Platten 3a und 3b, die Distanzstücke 5 und die Abstandshalter 6 sind miteinander verlötet, so dass sich ein kompakter Plattenwärmetauscher ergibt. Die Platten 3a und 3b haben auf den Flächen der Platten verteilt Noppen 7, die der Erhöhung der Stabilität und der Verbesserung der Wärmeübertragung zwischen der den Plattenwärmetauscher 1 umströmenden Flüssigkeit und dem den Plattenwärmetauscher 1 durchströmenden Fluid dienen. An die in Fig. 1 voll sichtbare Platte 3a ist im Bereich der Sammelkanäle 4a und 4b je eine Dichtplatte 9 dichtend an die Platte 3a angelötet, wobei an der gegenüberliegenden Seite im Bereich der Sammelkanäle 4a und 4b je eine Jochplatte 10 angelötet ist. Die Jochplatte 10 weist seitliche Ösen auf, die die Sammelkanäle 4a und 4b seitlich überragen. Durch die Ösen sind Schrauben 11 geführt, die in einem mit 12 bezeichneten Gehäuse einer nicht dargestellten Brennkraftmaschine eingedreht sind. Zwischen den Gewindebohrungen im Gehäuse 12 der Schrauben 11 ist jeweils ein Fluidkanal 13 eingeformt, der an einen nicht dargestellten Fluidkreislauf der Brennkraftmaschine angeschlossen ist. Um die Fluidkanäle 13 herum sind im Gehäuse 12 Nuten eingearbeitet, in denen O-Ringe 14a und 14b eingesetzt sind. Diese O-Ringe 14a und 14b stehen mit den Dichtplatten 9 in Wirkverbindung, so dass sich in Verbindung mit der Vorspannung der Schrauben 11 ein dichter Anschluss der Sammelkanäle 4a und 4b an die Fluidkanäle 13 ergibt. Um eine einfache Ausrichtung des Plattenwärmetauschers 1 am Gehäuse 12 zu ermöglichen, sind die Querschnitte der Fluidkanäle 13 größer als die Querschnitte der Sammelkanäle 4a und 4b bzw. der Öffnungen in den Dichtplatten 9, so dass Montagetoleranzen zwischen dem Plattenwärmetauscher 1 und dem Gehäuse 12 bzw. unterschiedliche Dehnungen zueinander ausgeglichen werden können.In the FIGS. 1 to 4 As far as shown in detail, 1 generally designates a plate heat exchanger which has a larger number of guide channels designated 2, which are composed of plates 3a and 3b. The guide channels 2 are connected to each other at the ends of the plates 3a and 3b by means of collecting channels 4a and 4b, so that the guide channels are fluidly connected in parallel with each other. Between the plates 3 a and 3 b 2 spacers 5 are inserted within the guide channels and spacers 6 are provided between the plates 3 a and 3 b outside the guide channels. The plates 3a and 3b, the spacers 5 and the spacers 6 are connected to each other soldered, so that results in a compact plate heat exchanger. The plates 3a and 3b have on the surfaces of the plates distributed nubs 7, which serve to increase the stability and the improvement of the heat transfer between the liquid flowing around the plate heat exchanger 1 and the fluid flowing through the plate heat exchanger 1. To the in Fig. 1 Fully visible plate 3a is in the region of the collecting channels 4a and 4b each sealing plate 9 sealingly soldered to the plate 3a, wherein on the opposite side in the region of the collecting channels 4a and 4b each a yoke plate 10 is soldered. The yoke plate 10 has lateral eyelets, which project beyond the collecting channels 4a and 4b. Through the eyelets screws 11 are guided, which are screwed in a designated 12 housing of an internal combustion engine, not shown. Between the threaded holes in the housing 12 of the screws 11, a fluid channel 13 is formed in each case, which is connected to a fluid circuit, not shown, of the internal combustion engine. Around the fluid channels 13 around 12 grooves are incorporated in the housing, in which O-rings 14a and 14b are used. These O-rings 14a and 14b are in operative connection with the sealing plates 9, so that in conjunction with the bias of the screws 11, a tight connection of the collecting channels 4a and 4b to the fluid channels 13 results. In order to enable a simple alignment of the plate heat exchanger 1 on the housing 12, the cross sections of the fluid channels 13 are larger than the cross sections of the collecting channels 4a and 4b or the openings in the sealing plates 9, so that mounting tolerances between the plate heat exchanger 1 and the housing 12 and different strains can be compensated for each other.

An den Stirnseiten des Plattenwärmetauschers (siehe Fig. 2 und 4) sind im Gehäuse 12 Strömungskanäle 15 eingearbeitet, durch die eine Flüssigkeit zu- und abgeführt wird, die den Plattenwärmetauscher 1 auf seinen Außenflächen umströmt.At the ends of the plate heat exchanger (see Fig. 2 and 4 ) 12 flow channels 15 are incorporated in the housing, through which a liquid is supplied and removed, which flows around the plate heat exchanger 1 on its outer surfaces.

Durch die mit 16 bezeichneten Verjüngungsränder, die gegenüber den Außenrändern 17 der Platten 3a und 3b bis auf einen kleinen Radius der Platten im Bereich der Sammelkanäle 4a und 4b zusammengezogen sind, ergeben sich schmale Distanzstücke innerhalb der Führungskanäle und schmale Abstandshalter außerhalb der Führungskanäle, so dass nur eine verhältnismäßig dünne Säule der Flüssigkeit aus den Strömungskanälen 15 entgegensteht und eine günstige Strömung entlang des Plattenwärmetauschers 1 gegeben ist. Die Schrauben 11 behindern die Strömung nur geringfügig, da zwischen den Schrauben und den Abstandshaltern 6 (siehe Fig. 3, linke Seite) noch Durchlässe bestehen. Zur Führung der Flüssigkeit zwischen den Strömungskanälen 15 entlang des Plattenwärmetauschers 1 und zwischen den Platten 3a und 3b ist der Plattenwärmetauscher von einem Deckel 18 umgeben, der dichtend mit dem Gehäuse 12 verbunden ist.Narrower spacers within the guide channels and narrow spacers outside the guide channels result due to the tapered edges denoted 16, which are contracted with respect to the outer edges 17 of the plates 3a and 3b to a small radius of the plates in the region of the collecting channels 4a and 4b only a relatively thin column of the liquid from the flow channels 15 opposes and a favorable flow along the plate heat exchanger 1 is given. The screws 11 impede the flow only slightly, as between the screws and the spacers 6 (see Fig. 3 , left side) passages still exist. To guide the liquid between the flow channels 15 along the plate heat exchanger 1 and between the plates 3a and 3b, the plate heat exchanger is surrounded by a cover 18 which is sealingly connected to the housing 12.

Fig. 5 zeigt den gleichen Schnitt wie Fig. 4, hier sind zusätzlich an den Plattenwärmetauscher 1 an die Außenränder 17 seitliche und/oder obere Leitvorrichtungen 20 angebracht, die zu dem zuführenden Strömungskanal 15 in ausgerichtet sind. Die Leitvorrichtungen 21 können - wie dargestellt - gerade ausgebildet sein oder aber sich auch an die Seitenwände beziehungsweise die Dachwand des Deckels 18 unter Vorspannung anlegen. Fig. 5 shows the same cut as Fig. 4 , here in addition to the plate heat exchanger 1 to the outer edges 17 side and / or upper guide devices 20 are mounted, which are aligned with the feeding flow channel 15 in. The guide devices 21 can - as shown - be formed straight or also create the side walls or the roof wall of the lid 18 under tension.

Fig. 6 zeigt eine alternative Befestigungsmethode, wobei der Plattenwärmetauscher 1 von einem Federelement 19, das zwischen dem Plattenwärmetauscher 1 und dem oberen Teil des Deckels 18 angeordnet ist, gegen das Gehäuse 12 gedrückt wird. Fig. 6 shows an alternative method of attachment, wherein the plate heat exchanger 1 by a spring member 19 which is disposed between the plate heat exchanger 1 and the upper part of the lid 18, is pressed against the housing 12.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
PlattenwärmetauscherPlate heat exchanger
22
Führungskanäleguide channels
3a, 3b3a, 3b
Plattenplates
4a, 4b4a, 4b
Sammelkanälecollecting channels
55
Distanzstückespacers
66
Abstandshalterspacer
77
Noppenburl
99
Dichtplattensealing plates
1010
Jochplattenyoke plates
1111
Schraubenscrew
1212
Gehäusecasing
1313
Fluidkanälefluid channels
14a, 14b14a, 14b
O-RingeO-rings
1515
Strömungskanäleflow channels
1616
Verjüngungsränderrejuvenation edges
1717
Außenränderouter edges
1818
Deckelcover
1919
Federelementspring element
2020
Leitvorrichtungguide

Claims (15)

  1. Plate heat exchanger (1) having a number of guide ducts (2) for a fluid, which guide ducts (2) are connected parallel to one another by means of collecting ducts (4a, 4b), with the guide ducts (2) having a pair of plates (3a, 3b) which are sealingly connected to one another at their edges, with distancing pieces (5) being provided between the plates (3a, 3b) within the guide ducts (2), and spacers (6) being provided between the plates (3a, 3b) outside the guide ducts (2), in the region of the collecting ducts (4a, 4b), and with it being possible for the collecting ducts (4a, 4b) to be sealingly connected to fluid ducts (13) in a housing (12) and with the collecting ducts (4a, 4b) being closed off at the opposite end, and with it being possible for the plate heat exchanger (1) to be fastened to the housing (12) by means of screws (11),
    characterized in that the plates (3a, 3b) are designed so as to taper in terms of their dimensions in the direction of the collecting ducts (4a, 4b) and in that at least in each case one screw (11) is provided adjacent to the collecting ducts (4a, 4b) and outside the plates (3a, 3b).
  2. Plate heat exchanger (1) according to Claim 1, characterized in that in each case one yoke plate (10) is provided outside the closed-off ends of the collecting ducts (4a, 4b), which yoke plate (10) is fastened to the housing (12) by means of two screws (11).
  3. Plate heat exchanger (1) according to Claim 1,
    characterized in that in each case one fastening plate is provided at the housing-side end of the collecting ducts (4a,4b), which fastening plate is fastened to the housing (12) by means of two screws.
  4. Plate heat exchanger (1) according to one of Claims 2 or 3,
    characterized in that the yoke plates (10) and the fastening plates are connected, preferably soldered, to the plate heat exchanger (1).
  5. Plate heat exchanger (1) according to Claim 1,
    characterized in that the plates (3a, 3b), as seen in plan view, have substantially parallel-running outer edges (17) from which tapering edges (16) extend at both sides.
  6. Plate heat exchanger (1) according to Claims 1 or 5,
    characterized in that the angle between the parallel outer edges (17) and the tapering edges (16) is approximately 20 to 30°, in particular 25°.
  7. Plate heat exchanger (1) according to one of Claims 1, 5 or 6,
    characterized in that the tapering edges (16) run out into a radius of 18 to 28 mm, preferably 23 mm, around the axis of the collecting ducts (4a, 4b).
  8. Plate heat exchanger (1) according to one of Claims 1 or 2,
    characterized in that the plate heat exchanger (1) has in each case one sealing plate (9) at the housing-side end of the collecting ducts (4a, 4b), which sealing plate (9) can be placed in operative connection with at least in each case one sealing ring (0-rings 14a, 14b) which is mounted on the housing (12).
  9. Plate heat exchanger (1) according to Claim 8,
    characterized in that the sealing plates (9) are sealingly fastened, preferably soldered, to the plate heat exchanger (1).
  10. Plate heat exchanger (1) according to one of the preceding claims,
    characterized in that the openings, which adjoin the collecting ducts (4a, 4b), in the sealing plates (9) or in the fastening plates are in each case smaller than the dimensions of the associated fluid ducts (13) or vice versa.
  11. Plate heat exchanger (1) according to Claim 10,
    characterized in that the collecting ducts (4a, 4b) and/or the openings in the sealing plates (9) and in the fastening plates are of round cylindrical design with a diameter of approximately 20 mm, and the fluid ducts (13) are likewise of round cylindrical design, with a diameter of approximately 28 mm, at least at their ends which face toward the plate heat exchanger (1).
  12. Plate heat exchanger (1) according to one of Claims 1 and 5 to 11,
    characterized in that a bridge is provided outside the closed-off ends of the collecting ducts (4a, 4b), which bridge is fastened to the housing (12) by means of the screws (11).
  13. Plate heat exchanger (1) according to one of Claims 1 and 5 to 11,
    characterized in that at least one spring element (19) is provided outside the closed-off ends of the collecting ducts (4a, 4b), which spring element (19) is supported against a cover (18) which covers the plate heat exchanger and which spring element (19) presses the plate heat exchanger (1) against the housing (12).
  14. Plate heat exchanger (1) according to one of Claims 1 and 5 to 11,
    characterized in that a central fastening element is inserted into each collecting duct (4a, 4b), which central fastening element engages in each case into the fluid duct (13).
  15. Plate heat exchanger (1) according to one of the preceding claims,
    characterized in that guide devices (20) are attached to the plate heat exchanger (1), which guide devices (20) are aligned in the direction of the flow duct (15).
EP05770113A 2004-07-22 2005-07-12 Plate heat exchanger Not-in-force EP1769207B1 (en)

Applications Claiming Priority (2)

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DE102004035448A DE102004035448A1 (en) 2004-07-22 2004-07-22 Plate heat exchanger
PCT/EP2005/007509 WO2006010463A1 (en) 2004-07-22 2005-07-12 Plate heat exchanger

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EP1769207A1 EP1769207A1 (en) 2007-04-04
EP1769207B1 true EP1769207B1 (en) 2009-04-29

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EP (1) EP1769207B1 (en)
AT (1) ATE430296T1 (en)
DE (2) DE102004035448A1 (en)
WO (1) WO2006010463A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359806A1 (en) 2003-12-19 2005-07-14 Modine Manufacturing Co., Racine Heat exchanger with flat tubes and flat heat exchanger tube
DE102005053924B4 (en) 2005-11-11 2016-03-31 Modine Manufacturing Co. Intercooler in plate construction
US8424592B2 (en) 2007-01-23 2013-04-23 Modine Manufacturing Company Heat exchanger having convoluted fin end and method of assembling the same
SE532084C2 (en) 2007-05-10 2009-10-20 Alfa Laval Corp Ab plate heat exchangers
CN101691973B (en) * 2009-10-20 2011-04-13 江苏宝得换热设备有限公司 Plate-type heat exchanger
DE102013014434A1 (en) * 2013-08-30 2015-03-05 Modine Manufacturing Company Brazed heat exchanger
ES2588828T3 (en) 2013-12-20 2016-11-07 Alfa Laval Corporate Ab Plate heat exchanger with mounting flange
DE102016100305A1 (en) * 2016-01-11 2017-07-13 Hanon Systems Arrangement for intercooling
FR3053453B1 (en) 2016-06-29 2019-07-05 Liebherr-Aerospace Toulouse Sas THERMAL EXCHANGE DEVICE COMPRISING AT LEAST ONE STIFFENING DEVICE, AIR CONDITIONING SYSTEM AND VEHICLE
DE102017000183A1 (en) * 2017-01-12 2018-07-12 Modine Manufacturing Company Guiding / steering device for heat exchangers flowing through fluid streams
WO2019169501A1 (en) * 2018-03-07 2019-09-12 Dana Canada Corporation Heat exchangers with integrated electrical heating elements and with multiple fluid flow passages

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1204157B (en) * 1986-02-07 1989-03-01 Fonderie E Officine San Giorgi HEAT EXCHANGER PARTICULARLY SUITABLE FOR USE AS A HEAT RECOVERY FROM WET GASES
SE462763B (en) * 1989-04-28 1990-08-27 Torell Ab PLATFORM HEAT EXCHANGE / COOLER AND WERE MANUFACTURED TO MANUFACTURE THIS
DE4403144C3 (en) * 1994-02-02 2002-05-29 Laengerer & Reich Gmbh & Co Plate heat exchangers
AU2001273879A1 (en) * 2000-09-28 2002-04-08 Dantherm Hms A/S A heat exchanger comprising plate elements with spiral ducts
US20030145979A1 (en) * 2002-02-05 2003-08-07 Beddome David Wilson Heat exchanger having variable thickness tie rods and method of fabrication thereof
SE0202747L (en) * 2002-09-17 2004-02-10 Valeo Engine Cooling Ab Device at a plate heat exchanger

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DE102004035448A1 (en) 2006-02-16
EP1769207A1 (en) 2007-04-04
DE502005007198D1 (en) 2009-06-10
WO2006010463A1 (en) 2006-02-02
ATE430296T1 (en) 2009-05-15

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