EP3671068B1 - Wärmetauscher mit filter für kühlmittelflüssigkeitskreislauf - Google Patents

Wärmetauscher mit filter für kühlmittelflüssigkeitskreislauf Download PDF

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Publication number
EP3671068B1
EP3671068B1 EP18461649.8A EP18461649A EP3671068B1 EP 3671068 B1 EP3671068 B1 EP 3671068B1 EP 18461649 A EP18461649 A EP 18461649A EP 3671068 B1 EP3671068 B1 EP 3671068B1
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EP
European Patent Office
Prior art keywords
block
heat exchanger
path
refrigerant fluid
orifice
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.)
Active
Application number
EP18461649.8A
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English (en)
French (fr)
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EP3671068A1 (de
Inventor
Filip CICHOSZ
Mateusz KACZMARCZYK
Karol POKRYWINSKI
Pawe SUS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Autosystemy Sp zoo
Original Assignee
Valeo Autosystemy Sp zoo
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to EP18461649.8A priority Critical patent/EP3671068B1/de
Priority to PCT/EP2019/085869 priority patent/WO2020127437A1/en
Publication of EP3671068A1 publication Critical patent/EP3671068A1/de
Application granted granted Critical
Publication of EP3671068B1 publication Critical patent/EP3671068B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
    • 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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0251—Massive connectors, e.g. blocks; Plate-like connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/043—Condensers made by assembling plate-like or laminated elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0441—Condensers with an integrated receiver containing a drier or a filter
    • 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
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • 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
    • F28F2275/04—Fastening; Joining by brazing

Definitions

  • the present invention concerns a heat exchanger for a refrigerant fluid loop. More specifically, the present invention concerns such a heat exchanger comprising devices for filtering the refrigerant fluid that flows through such heat exchangers.
  • a refrigerant fluid loop generally comprises at least two heat exchangers, at least one compressor and at least one expansion device.
  • the compressor and the expansion device are both fragile and comprise movable elements that can easily break. It is therefore important that only the refrigerant fluid enters this compressor or the expansion device. In order to achieve that goal, it is already known to filter the refrigerant fluid before it reaches one of these components.
  • Documents [ US5901573A ], [ EP2587194] A1 and [ CN103727706B ] show such heat exchangers, where out of these documents, document [ US5901573A ] shows a heat exchanger according to the preamble of claim 1.
  • Some particles may be inside heat exchangers, for instance due to manufacturing processes or default in the cleaning system of such heat exchanger.
  • the cleaning of such particles appears to be really expensive and complex. And even with all the care that can be given to this cleaning, some of those particles, especially particles that have a diameter smaller than 60 ⁇ m can remain in those heat exchangers and can then be dragged by the refrigerant fluid to finally damage the compressor, the expansion device or any other element in which this refrigerant fluid could flow.
  • the present invention solves at least this issue, by providing a heat exchanger for a refrigerant fluid loop, the heat exchanger being defined by appended independent claim 1 and comprising inter alia at least one inlet configured to allow a refrigerant fluid to enter in the heat exchanger, and at least one outlet configured to allow the refrigerant fluid to exit the heat exchanger, the heat exchanger comprising at least one block in which a filter is arranged.
  • the at least one block is arranged downstream the at least one outlet of the heat exchanger, the block comprises at least one first part and at least one second part secured to the first part, and the filter is arranged between said first part and said second part.
  • the filter therefore comprises at least one portion which is in contact with both the first part and the second part of the block.
  • the word "downstream" is to be understood with respect to a direction of the refrigerant fluid flow.
  • the parts of the block are configured as defined by appended independent claim 1.
  • the block comprises at least one first orifice through which the refrigerant fluid enters the block and at least one second orifice through which the refrigerant fluid exits the block, the first orifice being arranged in the first part of the block and the second orifice being arranged in the second part of the block.
  • the first part comprises a first path through which the refrigerant fluid is able to flow
  • the second part comprises a second path through which the refrigerant fluid is able to flow
  • the first path being connected to the second path and the first path extending mainly along a first axis, this first axis intersecting a second axis along which the second path mainly extends.
  • the word "connected” must, here, be understood as a fluidic connection, that is to say that the refrigerant fluid that flows through the first path reaches the second path as soon as it leaves the first path.
  • the block comprises at least a third part secured, at least, to the second part of said block, the block comprising at least one first orifice through which the refrigerant fluid enters the block and at least one second orifice through which the refrigerant fluid exits the block, the first orifice being arranged in the first part of the block and the second orifice being arranged in the third part of the block.
  • the first part, the second part and the third part of the block comprise, respectively, a first path, a second path and a third path, the refrigerant fluid being able to flow through each of these paths and at least the second path being connected to both the first path and the third path.
  • the first path, the second path and the third path extend along a unique axis.
  • the first path, the second path and the third path extend parallel to each other, and are arranged one after the other, therefore forming a unique path extending from the first orifice to the second orifice.
  • Obviously other arrangements of said paths is conceivable within the scope of the invention.
  • the refrigerant fluid enters the block along a first direction and exits the block along a second direction, the first direction and the second direction intersecting each other.
  • the first orifice and the second orifice of the block which respectively allow the entrance and the exit of the refrigerant fluid in the block, are non-linear, that is to say that the second orifice through which the refrigerant fluid exits the block is arranged obliquely with respect to the first orifice through which the refrigerant fluid enters the block.
  • the heat exchanger comprises at least one manifold in which the outlet is arranged.
  • the first part of the block can be secured to the manifold of the heat exchanger in such a way that said outlet is directly continued by the first orifice of the block. It is understood that the first part of the block is, according to this example, directly secured to the manifold, in the vicinity of the outlet.
  • a conduit can be interposed between the outlet of the heat exchanger and the first orifice of the block.
  • the block can be placed away from the heat exchanger.
  • said conduit is able to carry the refrigerant fluid, in order for this refrigerant fluid to reach the first orifice of the block once out of the heat exchanger.
  • the first path arranged in the first part of the block comprises a chamber which houses the filter, this chamber presenting a diameter bigger than a diameter of the rest of the first path.
  • the diameter of the chamber which houses the filter is bigger than a diameter of the second path arranged in the second part of the block.
  • a diameter of the third path arranged in the third part of the block is smaller than the diameter of the chamber which houses the filter.
  • the diameter of the second path arranged in the second part can be bigger than the diameter of the third path arranged in the third part of the block.
  • the block can be made of a single piece. That is to say that, at least, the first part and the second part form, together, a single piece which cannot be separated without damaging at least the first part and/or the second part.
  • the first part, the second part and the third part can therefore form, together, a single piece which cannot be separated without damaging at least the first part and/or the second part and/or the third part.
  • the first part and the second part of the block are two distinct parts.
  • the first part can be screwed to the second part.
  • the first part and the second part of the block can be brazed together.
  • the filter is made of a material that resists high temperatures, and in particular, that resists at least the temperature at which the brazing is operated, that is to say for example up to 660°C, depending on the material used for the brazing operation.
  • the heat exchanger is used as condenser.
  • the heat exchanger according to this example of application is configured to liquefy the refrigerant fluid that flows through it, that is to say that the refrigerant fluid enters the heat exchanger in a gaseous state and exits it in a liquid state.
  • upstream and downstream both refer to a direction of circulation of a refrigerant fluid in the concerned object.
  • FIG 1 is a schematic view of a refrigerant fluid loop 100 intended to be accommodated in a motor vehicle.
  • This refrigerant fluid loop 100 comprises at least a compressor 110 configured to increase the pressure of a refrigerant fluid R circulating through the loop 100, a first heat exchanger 120 configured to undertake a heat exchange between the refrigerant fluid R and a first airflow AF1, an expansion device 130 configured to decrease the pressure of the refrigerant fluid R and a second heat exchanger 140 configured to undertake a heat exchange between the refrigerant fluid R and a second airflow AF 2 .
  • the first airflow AF 1 is taken outside the motor vehicle in which the refrigerant fluid loop 100 is accommodated, and the second airflow AF 2 is reserved to be sent in a passenger compartment of said motor vehicle.
  • the first heat exchanger 120 is realized according to the invention and comprises a block 200 in which, as explained in more details below, a filter 300 is arranged.
  • this filter 300 is located at an outlet 122 of the heat exchanger, that is to say that the block 200 which houses said filter 300 is arranged downstream the first heat exchanger 120 along a flowing direction of the refrigerant fluid R, this flowing direction being illustrated by the arrow R.
  • the refrigerant fluid R exits the compressor 110 in a gaseous state and reaches the first heat exchanger 120, and more precisely it reaches an inlet 121 of the first heat exchanger 120.
  • a transfer of calories is undertaken between said refrigerant fluid R circulating in this first heat exchanger 120 and the first airflow AF1 that flows through it. More precisely, the refrigerant fluid R gives calories to the first airflow AF1 and liquefies.
  • the first heat exchanger 120 acts, in this particular example, as a condenser.
  • the refrigerant fluid R exits the first heat exchanger 120 in a liquefied state and reaches the block 200 wherein it is filtered by the filter 300.
  • the block 200 is connected on one hand to an outlet 122 of the first heat exchanger 120 configured to allow the refrigerant fluid R to exit said first heat exchanger 120 and on the other hand to a pipe 101 of the refrigerant fluid loop 100.
  • the refrigerant fluid R goes through the expansion device 130 in which its pressure is reduced before it reaches the second heat exchanger 140.
  • the refrigerant fluid R takes calories from the second airflow AF2 and evaporates.
  • the second airflow AF2 can then be sent to the passenger compartment to drop the temperature of this compartment and the refrigerant fluid R, which is again in a gaseous state, can again reach the compressor 110 to start a new cycle.
  • the first heat exchanger 120 and the second heat exchanger 140 are similar and both comprise at least two manifolds or header tanks arranged at an extremity of a heat exchange area wherein the heat exchange between the refrigerant fluid and the first or the second airflow AF1, AF2 takes place.
  • the outlet 122 of the first heat exchanger 120 is arranged in one of its head tanks, and the inlet 121 of this first heat exchanger 120 is arranged in the other one.
  • first heat exchanger and "heat exchanger” will be used with no distinction.
  • the block 200 arranged near the outlet 122 of the first heat exchanger 120 could be placed at an outlet of the second heat exchanger without departing from the scope of the invention.
  • Figures 2 and 4 illustrate, in perspective views, the block 200 according, respectively, to a first embodiment and to a second embodiment of the invention.
  • Figure 3 illustrates another perspective view of the block 200 according to the first embodiment.
  • the block 200 comprises a first part 201 and a second part 202 secured to the first part 201.
  • a first orifice 211 is arranged in the first part 201 of this block 200, such first orifice 211 being configured to allow the refrigerant fluid to enter the block 200.
  • a second orifice 212 is arranged in the second part 202 of the block 200, such second orifice 212 being configured to allow the refrigerant fluid to exit the block 200.
  • the first part 201 and more specifically the first orifice 211 arranged in this first part 201, is intended to be connected, directly or indirectly, to the outlet of the heat exchanger and the second part 202, and especially the second orifice 212 arranged in this second part 202, is intended to be connected to the pipe of the refrigerant fluid loop described above.
  • the first part 201 and the second part 202 can, for instance, be brazed together. Obviously this feature does not restrict the invention and the first part 201 could be secured to the second part 202 thanks to any other existing means within the scope of the invention.
  • the first part 201 of the block 200 comprises two ribs 210 configured to allow the crimping of said first part 201 to one of the head tanks of the heat exchanger the block 200 is designed for. As illustrated on figure 2 , such ribs 210 extend parallel to each other and are distributed on both sides of the first orifice 211.
  • the first orifice 211 arranged in the first part 201 of the block 200 is intended to be connected to the outlet of the heat exchanger.
  • the ribs 210 of the first part 201 of the block 200 is configured to allow the crimping of said first part 201 to the header tank of the heat exchanger in which said outlet is arranged.
  • first part 201 of the block 200 presents a bulge 204 created near the ribs 210, such bulge 204 resulting of the arrangement of a baffle near the first orifice 211 of the first part 201.
  • the first part 201 and the second part 202 of the block 200 present different shapes. More precisely, the second part 202 has the general shape of an L, therefore comprising at least two branches 205, 206 arranged perpendicularly to one another, a first branch 205 being longer than a second branch 206 of this general L-shape.
  • the first part 201 extends mainly along a straight line that is perpendicular to a plane which comprises both the first branch 205 and the second branch 206. In other words, an angle of approximately 90° is formed between the first part 201 and the second part 202 of the block 200.
  • the first part 201 can take different position thanks to a cooperation between a finger 207 realized on the first part 201 of the block 200 and a groove 208 realized in the second part 202 of said block 200.
  • This cooperation is for instance illustrated on figure 3 which displays a different perspective view of the block 200 according to the first embodiment of the invention.
  • the finger 207 presents a rounded end 217 and the groove 208 presents a complementary shape, that is to say that a bottom of this groove 208 is curved.
  • the rounded end 217 of the finger 207 can be moved with respect to the groove 208, along the illustrated arrow A, thus modifying the position of the first part 201, and more precisely, modifying the orientation of the ribs 210 distributed on either side of the first orifice.
  • this movement enables the block 200 of the invention to be attached to different heat exchangers, and more particularly to different head tanks of such heat exchangers. It is understood, that this position has to be chosen before the brazing operation. Indeed, once the two parts are brazed the first part 201 and the second part 202 cannot be moved anymore.
  • first part 201 and of the second part 202 of the block can be modified without departing from the scope of the invention.
  • the block 200 according to the second embodiment illustrated on figure 4 differs from the first embodiment in that the block 200 comprises a third part 203 and in that the second orifice 212 is arranged in this third part 203.
  • the first part 201 and more precisely the first orifice 211 arranged in this first part 201, is connected, directly or indirectly to the outlet of the heat exchanger, the third part 203, and more specifically the second orifice 212 arranged in such third part 203, is connected to the pipe of the refrigerant loop and the second part 202 is interposed between the first part 201 and the third part 203.
  • the first part 201, the second part 202 and the third part 203 are screwed together.
  • this is only an example and that any other means for fixing pieces together can be used within the scope of the invention.
  • Another difference between the example of the first embodiment illustrated on figure 2 and the example of the second embodiment represented on figure 4 stands in that the block 200 according to the second embodiment lacks the ribs 210. In other words, said block 200 cannot be crimped to the head tank of the heat exchanger. Instead, the first orifice 211 is connected to the outlet of the heat exchanger thanks to a conduit - not shown on the figures. Advantageously, using this conduit allows to place the block away from the heat exchanger, reducing the bulk of such heat exchanger.
  • the first orifice 211 and the second orifice 212 of the block 200 are not linear.
  • the refrigerant fluid enters the block 200, via the first orifice 211 along a first direction R1 and the refrigerant fluid exits said block 200, via the second orifice 212 along a second direction R2, the second direction R2 intersecting the first direction R1.
  • a filter 300 is disposed in the block 200, and especially, said filter 300 is interposed between the first part 201 and the second part 202 of the block 200.
  • Figure 5 represents a cross-section view of the block 200 according to the first embodiment
  • figure 6 illustrates a cross-section view of the block 200 according to the second embodiment.
  • a first path 221 is arranged in the first part 201 and a second path 222 is arranged in the second part 202, both this paths 221, 222 being adapted to the circulation of the refrigerant fluid.
  • the first path 221 is connected, directly or indirectly, to the first orifice 211 through which the refrigerant fluid enters the block 200 on one end and to the second path 222 on another end.
  • the word "connected” must, here, be understood as a “fluidic connection”, that is to say a connection that allows the circulation of the refrigerant fluid.
  • the first path 221 extends mainly along a first axis A1 and the second path 222 - which is only partially represented on figure 5 - extends along a second axis A2, the first axis A1 intersecting the second axis A2.
  • the second axis A2 can extend perpendicular to the first axis A1.
  • the filter 300 extends mainly along a direction parallel to the first axis A1.
  • the filter 300 according to the invention has a cylindrical shape adapted to fit at least in the first path 221 and/or in the second path 222 arranged in the first part 201 and/or in the second part 202 of the block 200.
  • a wall 301 defining the filter 300 has a cylindrical shape that fits an internal shape of said paths 221, 222.
  • the first path 221 and the second path 222 are both formed as rounded tubes.
  • the filter 300 viewed in the cross-sections illustrated on figures 5 and 6 , has a U-shaped profile, an opening 302 of the U-shape facing the first orifice 211 through which the refrigerant fluid enters the block 200.
  • the refrigerant fluid enters the filter 300 along the first axis A1 and exits this filter 300 along the second axis A2.
  • an edge 303 defining the opening 302 of the U-shape extends perpendicular to the first axis A1, beyond the wall 301 defining the filter 300.
  • the filter 300 is interposed between the first part 201 and the second part 202 of the block 200.
  • a first groove 232 is arranged in the second part 202, such groove 232 being configured to receive, at least, the edge 303 defining the opening 302 of the filter 300.
  • the first part 201 comprises a second groove 231 which presents a shape which complement the shape of the first groove 232 arranged in the second part 202.
  • the first part 201 and the second part 202 of the block 200 are, according to the first embodiment described in this document, brazed together.
  • the filter 300 is, according to said first embodiment, disposed between the first part 201 and the second part 202 before the brazing of those pieces.
  • the filter 300 is firmly maintained between them.
  • the filter 300 is therefore made of a material that resists high temperatures, and especially a material that resists temperatures at which the brazing operation is realized.
  • the block 200 comprises three parts 201, 202, 203 in which are realized, respectively, the first path 221, the second path 222 and a third path 223.
  • the first path 221 is connected to the first orifice 211 on one end and to the second path 222 on another end.
  • the second path 222 is therefore connected to the first path 221 on one side and to the third path 223 on another side and this third path 223 is connected both to the second path 222 and to the second orifice 212 through which the refrigerant fluid exits the block 200.
  • the third path 223 partially extends in the second path 222.
  • the second embodiment of the present invention differs from the first embodiment in that it comprises three parts 201, 202, 203 instead of two and in that the first path 221, the second path 222 and the third path 223 extend mainly along a unique axis A3.
  • the first path 221, the second path 222 and the third path 223 extend parallel to one another, thus forming a unique path starting from the first orifice 211 and ending at the second orifice 212.
  • the first part 201, the second part 202 and the third part 203 of the block 200 according to the second embodiment illustrated on figure 6 are screwed together. More precisely, the first part 201 is screwed to the second part 202 which is, in turn, screwed to the third part 203.
  • At least two holes 242, 243 are pierced in the second part 202, a first hole 242 extending through the first part 201 and receiving a first screw 401 which fixes the first part 201 to the second part 202 and a second hole 243 extending through the third part 203 and receiving a second screw 402 for fixing the third part 203 to the second part 202.
  • the third part 203 presents an L-shaped profile, viewed in the cross-section illustrated on figure 6 . As illustrated, this specific profile is designed to allow the screwing of each part to one another.
  • the second hole 243 is arranged through one branch 213 of this L-shaped profile and the other branch 214 extends in a way that a free space is created, this free space being able to receive a head 411 of the first screw 401.
  • the first part 201 and the second part 202 both presents rectangular cross-sections.
  • the block 200 according to the second embodiment illustrated here also comprises the filter 300, which is, as mentioned above, disposed between the first part 201 and the second part 202 of the block 200.
  • the filter 300 presents, according to this second embodiment, a similar shape to the shape of the filter 300 according to the first embodiment, that is to say a U-shaped profile viewed in the cross-section illustrated here, this U-shaped profile comprising the opening 302 defined by the edge 303 that extends beyond the wall 301 defining the filter 300. Focusing on the differences between first and second embodiments, the opening 302 of the filter 300 faces away from the first orifice 211 through which the refrigerant fluid enters the block 200. In other word, a base of the U-shaped profile faces this first orifice 211.
  • the filter 300 also comprises at least one aperture 304, advantageously several apertures 304, closed by a meshed element 305 configured to filter the refrigerant fluid.
  • the meshed element 305 can be configured to retain particles presenting a diameter bigger than 50 ⁇ m. In other configurations, the meshed element 305 can be configured to retain particles presenting a diameter bigger than 30 ⁇ m.
  • the first path 221 comprises a chamber 251 in which the filter 300 is housed.
  • This chamber 251 advantageously presents a diameter Dc bigger than a diameter D1 of the rest of the first path 201, bigger than a diameter D2 of the second path 222 and also bigger than a diameter D3 of the third path 223.
  • the third path 223 partially protrudes in the second path 222, resulting in that the diameter D3 of this third path 223 is smaller than the diameter D2 of the second path 222.
  • the second part 202 also comprises at least a first annular cut 262 and a second annular cut 272, which respectively receive a first sealing device 261 and a second sealing device 263, the first sealing device 261 being adapted to seal a junction between the first part 201 and the second part 202 and the second sealing device 263 being designed to seal a junction between the second part 202 and the third part 203.
  • the block according to the second embodiment of the invention can be provided with ribs allowing it to be crimped to the head tank of the heat exchanger within the scope of the invention. Any other combination of the features described above is also possible within the scope of the invention.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (16)

  1. Wärmetauscher (120) für einen Kältemittelfluidkreislauf (100), der Wärmetauscher (120) umfassend mindestens einen Einlass (121), dazu konfiguriert, zu ermöglichen, dass ein Kältemittelfluid (R) in den Wärmetauscher (120) eintritt, und mindestens einen Auslass (122), dazu konfiguriert, zu ermöglichen, dass das Kältemittelfluid (R) aus dem Wärmetauscher (120) austritt, der Wärmetauscher (120) umfassend mindestens einen Block (200), in dem ein Filter (300) angeordnet ist, dadurch gekennzeichnet, dass der mindestens eine Block (200) stromabwärts des mindestens einen Auslasses (122) des Wärmetauschers (120) angeordnet ist, wobei der Block (200) mindestens einen ersten Teil (201) und mindestens einen zweiten Teil (202), der an dem ersten Teil (201) gesichert ist, umfasst, und wobei der Filter (300) zwischen dem ersten Teil (201) und dem zweiten Teil (202) angeordnet ist, dadurch gekennzeichnet, dass der erste Teil (201) einen Finger (207) umfasst, der auf dem ersten Teil (201) des Blocks (200) ausgebildet ist, und der zweite Teil (202) eine Nut (208) umfasst, die auf dem zweiten Teil (202) des Blocks (200) ausgebildet ist, wobei der erste Teil (201) durch ein Zusammenwirken zwischen dem Finger (207) und der Nut (208) positioniert wird.
  2. Wärmetauscher (120) nach dem vorhergehenden Anspruch, wobei der Block (200) mindestens eine erste Öffnung (211) umfasst, durch die das Kältemittelfluid (R) in den Block (200) eintritt, und mindestens eine zweite Öffnung (212), durch die das Kältemittelfluid (R) aus dem Block (200) austritt, wobei die erste Öffnung (211) im ersten Teil (201) des Blocks (200) angeordnet ist und die zweite Öffnung (212) im zweiten Teil (202) des Blocks (200) angeordnet ist.
  3. Wärmetauscher (120) nach einem der vorhergehenden Ansprüche, wobei der erste Teil (201) einen ersten Pfad (221) umfasst, durch den das Kältemittelfluid (R) strömen kann, wobei der zweite Teil (202) einen zweiten Pfad (222) umfasst, durch den das Kältemittelfluid (R) strömen kann, wobei der erste Pfad (221) mit dem zweiten Pfad (222) verbunden ist und wobei sich der erste Pfad (221) hauptsächlich entlang einer ersten Achse (A1) erstreckt, wobei diese erste Achse (A1) eine zweite Achse (A2) schneidet, entlang derer sich der zweite Pfad (222) hauptsächlich erstreckt.
  4. Wärmetauscher (120) nach Anspruch 1, wobei der Block (200) mindestens einen dritten Teil (203) umfasst, mindestens an dem zweiten Teil (202) des Blocks (200) gesichert, der Block (200) umfassend mindestens eine erste Öffnung (211), durch die das Kältemittelfluid (R) in den Block (200) eintritt, und mindestens eine zweite Öffnung (212), durch die das Kältemittelfluid (R) aus dem Block (200) austritt, wobei die erste Öffnung (211) im ersten Teil (201) des Blocks (200) angeordnet ist und die zweite Öffnung (212) im dritten Teil (203) des Blocks (200) angeordnet ist.
  5. Wärmetauscher (120) nach dem vorhergehenden Anspruch, wobei der erste Teil (201), der zweite Teil (202) und der dritte Teil (203) des Blocks (200) einen ersten Pfad (221), einen zweiten Pfad (222) bzw. einen dritten Pfad (223) umfassen, wobei das Kältemittelfluid durch jeden dieser Pfade (221, 222, 223) strömen kann, wobei mindestens der zweite Pfad (222) sowohl mit dem ersten Pfad (221) als auch mit dem dritten Pfad (223) verbunden ist, und wobei der erste Pfad (221), der zweite Pfad (222) und der dritte Pfad (223) sich entlang einer eindeutigen Achse (A3) erstrecken.
  6. Wärmetauscher (120) nach einem der vorhergehenden Ansprüche, wobei das Kältemittelfluid (R) entlang einer ersten Richtung (R1) in den Block (200) eintritt und entlang einer zweiten Richtung (R2) aus dem Block (200) austritt, wobei die erste Richtung (R1) und die zweite Richtung (R2) einander schneiden.
  7. Wärmetauscher (120) nach einem der vorhergehenden Ansprüche, umfassend mindestens einen Verteiler, in dem der Auslass (122) angeordnet ist, wobei der erste Teil (201) des Blocks (200) derart am Verteiler des Wärmetauschers (120) gesichert ist, dass der Auslass (122) direkt durch die erste Öffnung (211) des Blocks (200) fortgesetzt wird.
  8. Wärmetauscher (120) nach einem der Ansprüche 1 bis 6, wobei eine Leitung zwischen dem Auslass (122) des Wärmetauschers (120) und der ersten Öffnung (211) des Blocks (200) angeordnet ist.
  9. Wärmetauscher (120) nach einem der vorhergehenden Ansprüche in Kombination mit Anspruch 3 oder 5, wobei der erste Pfad (221), der im ersten Teil (201) des Blocks (200) angeordnet ist, eine Kammer (251) umfasst, die den Filter (300) aufnimmt, wobei diese Kammer (251) einen Durchmesser (Dc) aufweist, der größer ist als ein Durchmesser (D1) des Rests des ersten Pfads (201).
  10. Wärmetauscher (120) nach Anspruch 9, wobei der Durchmesser (Dc) der Kammer (251), die den Filter (300) aufnimmt, größer ist als ein Durchmesser (D2) des zweiten Pfads (222), der im zweiten Teil (202) des Blocks (200) angeordnet ist.
  11. Wärmetauscher (120) nach den Ansprüchen 5 und 9, wobei ein Durchmesser (D3) des im dritten Teil (203) des Blocks (200) angeordneten dritten Pfads (223) kleiner ist als der Durchmesser (Dc) der Kammer (251), die den Filter (300) aufnimmt.
  12. Wärmetauscher (120) nach einem der vorhergehenden Ansprüche, wobei der erste Teil (201) und der zweite Teil (202) des Blocks (200) miteinander verlötet sind, sodass der Block (200) aus einem einzigen Stück besteht.
  13. Wärmetauscher (120) nach einem der Ansprüche 1 bis 11, wobei mindestens der erste Teil (201) und der zweite Teil (202) des Blocks (200) zwei separate Teile sind.
  14. Wärmetauscher (120) nach dem vorhergehenden Anspruch, wobei der erste Teil (201) mit dem zweiten Teil (202) verschraubt ist.
  15. Wärmetauscher (120) nach Anspruch 13, wobei der erste Teil (201) und der zweite Teil (202) des Blocks (200) miteinander verlötet sind.
  16. Wärmetauscher (120) nach einem der vorhergehenden Ansprüche, wobei der Wärmetauscher (120) als Kondensator verwendet wird.
EP18461649.8A 2018-12-18 2018-12-18 Wärmetauscher mit filter für kühlmittelflüssigkeitskreislauf Active EP3671068B1 (de)

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EP18461649.8A EP3671068B1 (de) 2018-12-18 2018-12-18 Wärmetauscher mit filter für kühlmittelflüssigkeitskreislauf
PCT/EP2019/085869 WO2020127437A1 (en) 2018-12-18 2019-12-18 Heat exchanger with filter, for refrigerant fluid loop

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EP18461649.8A EP3671068B1 (de) 2018-12-18 2018-12-18 Wärmetauscher mit filter für kühlmittelflüssigkeitskreislauf

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EP3671068B1 true EP3671068B1 (de) 2023-09-13

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EP3982076A1 (de) * 2020-10-07 2022-04-13 Valeo Autosystemy SP. Z.O.O. Wärmetauscher mit einem anschlussblock

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US5901573A (en) * 1995-11-02 1999-05-11 Calsonic Corporation Condenser structure with liquid tank
US6694773B1 (en) * 2003-01-29 2004-02-24 Calsonickansei North America, Inc. Condenser system with nondetachably coupled receiver
CN201852383U (zh) * 2010-11-17 2011-06-01 浙江三花汽车控制系统有限公司 一种热交换器及其贮液器
CN103727706B (zh) * 2013-12-26 2015-11-18 武汉微冷科技有限公司 带干燥过滤和节流功能的集成微型换热器组件

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