EP1745255B1 - Condenseur pour systeme de climatisation, notamment pour automobile - Google Patents

Condenseur pour systeme de climatisation, notamment pour automobile Download PDF

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Publication number
EP1745255B1
EP1745255B1 EP05747670A EP05747670A EP1745255B1 EP 1745255 B1 EP1745255 B1 EP 1745255B1 EP 05747670 A EP05747670 A EP 05747670A EP 05747670 A EP05747670 A EP 05747670A EP 1745255 B1 EP1745255 B1 EP 1745255B1
Authority
EP
European Patent Office
Prior art keywords
condenser
manifold
pipe
stopper
collector
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
EP05747670A
Other languages
German (de)
English (en)
Other versions
EP1745255A1 (fr
Inventor
Georg Feldhaus
Uwe FÖRSTER
Martin Kaspar
Kurt Molt
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1745255A1 publication Critical patent/EP1745255A1/fr
Application granted granted Critical
Publication of EP1745255B1 publication Critical patent/EP1745255B1/fr
Not-in-force 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
    • 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
    • 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
    • F25B2339/0443—Condensers with an integrated receiver the receiver being positioned horizontally
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/16—Receivers
    • F25B2400/162—Receivers characterised by the plug or stop

Definitions

  • the invention relates to a condenser for an air conditioning system, in particular for a motor vehicle.
  • a capacitor according to the preamble of claim 1 is eg in JP-A-11304301 shown.
  • Capacitors are components of a refrigerant circuit for an air conditioner, wherein the condenser in automotive air conditioners is often arranged and fixed in the front of the engine compartment together with a coolant radiator. Capacitors are known as so-called cross-flow condensers, ie with horizontally arranged and flowed through the refrigerant tubes and as a down-flow condensers with vertically arranged and flowed through the refrigerant tubes. Both types of capacitors are from the EP-A 769 666 known. Capacitors have manifolds into which the refrigerant pipes open, wherein the manifolds are divided by partitions to achieve a multi-flow, meandering flow of the condenser with refrigerant.
  • the condenser usually consists of a condensation section and a subcooling section, in which already liquefied refrigerant is cooled below the condensation temperature.
  • the condenser is associated with a collector, which is arranged parallel to one of the manifolds and communicates with the collector side of the refrigerant side.
  • the collector takes on a filtering and / or drying device and has, inter alia, the task of separating the gaseous and the liquid phase of the refrigerant, so that the supercooling section of the capacitor as liquid as possible Refrigerant is supplied.
  • a downdraft condenser ie with vertically arranged refrigerant pipes (so-called flow-through devices) and horizontally arranged collecting pipes with an underlying integrated collector disclosed.
  • the collector has an inflow chamber with an inflow opening and an outflow chamber with an outflow opening, wherein between the two chambers and between inflow and outflow opening a separation device is provided, which has an overflow opening for liquid refrigerant in its geodetically underlying area.
  • the gaseous phase of the refrigerant is located substantially in the upper half of the collector, ie in the geodetically higher region, whereby a separation of the two phases is achieved.
  • a capacitor of the type mentioned, d. H. to improve a downflow integrated collector downflow condenser in that an effective separation of the gaseous and the liquid phase of the refrigerant is achieved by simple means.
  • the separating device in the collector to a suction device, which is preferably designed as a suction tube and in the longitudinal direction of the collector.
  • the suction tube is passed through the filter and / or drying device, and even into a storage space in which collects in the geodesic lower area refrigerant in the liquid phase.
  • the advantage here is that the refrigerant is sucked off at a point at which adjusts the highest liquid level (level of liquid refrigerant).
  • the suction tube at its end, which projects into the storage space, a proboscis or a downwardly open cap, whereby an effective extraction of liquid refrigerant is possible.
  • the separating device is designed as a plug with a passage for the liquid refrigerant to be sucked.
  • the passage is connected on the one hand to the suction pipe and on the other hand to the discharge opening in the collector; he advantageously has a right-angled deflection, which results from an axially extending longitudinal and a radially extending transverse bore.
  • the stopper is adapted in its cross section to the cross section of the collector, inserted in the latter in the longitudinal direction and sealed against the inner wall of the collector via an O-ring.
  • the filter and / or drying device is arranged in the collector such that a Forced flow from the inflow opening away in the direction of the storage chamber is achieved.
  • the refrigerant flow entering the collector through the inflow opening contains gaseous constituents which are separated due to a slowed flow of refrigerant in the longitudinal direction of the collector and the density differences and collect in the upper (geodetically overhead) region of the collector.
  • the gaseous and the liquid phase are substantially separated, with a maximum liquid level being established in the geodetic lower region of the collector.
  • the proboscis of the aspiration tube dives into it and withdraws the liquid refrigerant.
  • the refrigerant is deflected in a U-shaped manner in the collector and thus covers a relatively long path, which favors a separation of gaseous and liquid phase.
  • the filtering and / or drying device and the suction device are interchangeable with plug, d. H. they can be removed from the collector and exchanged for serviced or new parts.
  • the filter and / or dryer device housed in a plastic housing and the suction tube, as well as the plug, are made of a plastic.
  • Fig. 1 shows a downdraft condenser 1 as a component of a refrigerant circuit, not shown, of an automotive air conditioning system, wherein the condenser 1 is connected via an inlet flange 2 and an outlet flange 3 to the refrigerant circuit.
  • the capacitor 1 has a Condenser network 4 with vertically arranged flat tubes 5 and not shown, arranged between the flat tubes 5 corrugated fins, which are covered by ambient air.
  • a collector 8 which communicates with the manifold 7 on the refrigerant side, which is not shown here.
  • the headers 6, 7 have not shown in their interior partitions, so that there is a multi-flow through the network 4, the penultimate passage by an arrow A and the last passage are shown by an arrow B.
  • the last passage according to the arrow B includes only a few tubes, z. B. four and is referred to as a subcooling section. In this subcooling section, liquid refrigerant predominantly flows, which is cooled below the condensation temperature and subsequently leaves the condenser 1 via the outlet flange 3.
  • Fig. 2 shows the collector 8 located below in connection with the parallel arranged lower manifold 7, both cut longitudinally.
  • the lower manifold 7 has, by way of example, two partitions 7a, 7b and two end walls 7c, 7d and is formed in two parts, ie divided in the longitudinal direction.
  • the collector 8, which has a slightly larger cross-section than the manifold 7, via an inflow opening 9 and an outflow opening 10 with the manifold 7 and with a chamber 11, which communicates with the penultimate passage according to the arrow A, or with a Chamber 12, which communicates with the subcooling B, connected.
  • the formation of the manifold 7 and the collector 8 and their mechanical and refrigerant side connection are incidentally from the EP-A 1 310 748 the applicant known.
  • the collector 8 has an inflow-side chamber 13, which accommodates a filter and / or drier device 14, to which a storage chamber 15 connects.
  • an approximately cylindrically shaped, adapted to the cross section of the collector 8 stopper 16 is arranged, which circumferentially in the region of the partition wall 7 b by a O-ring 17 is sealed against the inner wall of the collector 8.
  • the stopper 16 has an end wall 16a delimiting the inflow chamber 13, to the lower region of which a suction tube 18 is fixed, which is passed through the filter drier 14, extends into the storage chamber 15 and at its end there is a cap 18a (suction nozzle ) having.
  • Fig. 3 shows the collector 8, which has a longitudinal axis a, with manifold 7 in a longitudinal section, wherein the same reference numerals are used for the same parts.
  • the plug 16 is substantially formed as a solid plastic part, which has a passage 19, consisting of an axial bore 19 a and a radial bore 19 b, ie with a 90 ° deflection.
  • the suction pipe 18 is connected and passed through the filter-drying device 14.
  • the protruding into the storage chamber 15 end of the suction tube 18 is covered by the downwardly open cap 18 a and forms a suction.
  • the radial bore 19b is in alignment with the outflow opening 10 and thus communicates with the subcooling section of the condenser shown here by the arrow B.
  • the plug 16 further has in the region of the inflow opening 9 a deflection surface or a recess 20, which establishes a connection between the inflow opening 9 and the inflow chamber 13.
  • the filter-drying device 14 has in its geodetically overhead Beeich, ie approximately in the upper half of the collector an end-side inlet opening 14a and an end-side outlet opening 14b for the refrigerant and thus in the longitudinal direction of the collector 8 can be flowed through.
  • the filter-drying device 14 is known, in particular by the above-mentioned earlier application of the applicant.
  • the suction tube 18, which is in alignment with the axial bore 19 a is arranged in the geodetically lower, ie lowest, region of the collector 8.
  • the collector 8 is closed by a releasable sealing plug 21 - such. B. from the DE-A 100 39 260 the applicant known.
  • a releasable sealing plug 21 - such. B. from the DE-A 100 39 260 the applicant known.
  • the plug 21 is the plug 16 by means of a connecting member 22nd axially fixable in the collector 8.
  • Plug 16 and plug 21 may also be integrally formed.
  • the function of the capacitor according to the invention is based on the Fig. 3 explained below:
  • the largely condensed refrigerant penultimate passage (arrow A) enters via the inflow 9 in the inflow chamber 13 of the collector 8, which results in a delay of the refrigerant flow due to the cross-sectional widening.
  • the refrigerant, z. B. R134a forcibly flows in the direction of the longitudinal axis a through the filter drier 14, where it is cleaned and dried. Subsequently, the refrigerant enters the storage chamber 15, in the upper region, wherein a separation of the gaseous and the liquid phase takes place due to the density differences.
  • the liquid refrigerant thus collects in the lower region of the collector 8 and is withdrawn there via the suction nozzle 18a in the suction pipe 18, passes through the passage 19 with a 90 ° deflection upwards into the manifold 7 and thus into the subcooling section (arrow B ) of the capacitor.
  • the refrigerant which enters through the inflow opening 9 in the collector 8 and exits through the discharge opening 10 again from the collector 8, is thus deflected in this way by 180 ° or U-shaped by first in the upper region of the collector 8 in the Drawing from right to left and then after deflection in the lower region of the collector 8 via the suction pipe 18 in the drawing flows from left to right. In this case takes place on the way in the upper region of the collector 8 at a relatively low flow velocity, a separation of gaseous and liquid phase.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Claims (14)

  1. Condenseur pour un système de climatisation, en particulier pour un véhicule automobile, comprenant des tube (5) disposés verticalement et traversés par un fluide frigorigène, tubes qui communiquent, par le fluide frigorigène, avec un tube collecteur (6, 7) supérieur et inférieur disposé à chaque fois horizontalement, et avec un collecteur (8) disposé parallèlement au-dessous du tube collecteur inférieur (7),
    caractérisé en ce que le collecteur (8) qui, via une ouverture d'arrivée (9) et une ouverture d'évacuation (10) entre lesquelles est agencé un dispositif de réparation, communique, par le fluide frigorigène, avec le tube collecteur (7), et loge un dispositif de filtration et / ou de séchage (14), où le dispositif de séparation présente un dispositif d'aspiration pour du fluide frigorigène pratiquement liquide.
  2. Condenseur selon la revendication 1, caractérisé en ce que le dispositif d'aspiration est configuré comme un tube d'aspiration (18) qui est disposé dans la zone géodésiquement la plus basse du tube collecteur (8).
  3. Condenseur selon la revendication 2, caractérisé en ce que le tube d'aspiration (18) s'étend dans le sens longitudinal du collecteur (8) et est traversé par le dispositif de filtration et / ou de séchage (14).
  4. Condenseur selon les revendication 1, 2 ou 3, caractérisé en ce que le dispositif de séparation est configuré comme un bouchon (16) comprenant un conduit de passage (19, 19a, 19b) qui relie l'ouverture d'évacuation (10) au dispositif d'aspiration ou au tube d'aspiration (18).
  5. Condenseur selon la revendication 4, caractérisé en ce que le bouchon (16) est introduit dans le collecteur (8) et rendu étanche circonférentiellement, en particulier par une bague d'étanchéité (17), dans la zone comprisse entre l'ouverture d'arrivée et d'évacuation 9, 10).
  6. Condenseur selon la revendication 4 ou 5, caractérisé en ce que le conduit de passage (19) est formé par un perçage longitudinal et transversal (19a, 19b), ou le perçage transversal (19b) est aligné avec l'ouverture d'évacuation (10), le perçage longitudinal (19a) étant aligné avec le tube d'aspiration (18).
  7. Condenseur selon les revendications 4, 5 ou 6, caractérisé en ce que le bouchon (16) présente, dans la zone de l'ouverture d'arrivée (9), un évidement (20) servant à rediriger l'écoulement, en particulier dans le sens longitudinal du collecteur (8).
  8. Condenseur selon l'une quelconque des revendications précédentes, caractérisé en ce que le collecteur (8), au niveau de son extrémité placée à l'opposé de l'ouverture d'arrivée (9), présente une chambre de stockage (15).
  9. Condenseur selon la revendication 8, caractérisé en ce que le dispositif de filtration et / ou de séchage (14) est traversé, dans la zone géodésiquement supérieure (14a, 14b), par le fluide frigorigène qui arrive.
  10. Condenseur selon les revendications 3 et 9, caractérisé en ce que le tube d'aspiration (18) présente une extrémité (18a) placée côté aspiration, laquelle extrémité est disposée dans la zone géodésiquement intérieure de la chambre de stockage (15).
  11. Condenseur selon la revendication 10, caractérisé en ce que l'extrémité placée côté aspiration est configurée comme une trompe d'aspiration (18a).
  12. Condenseur selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de filtration et / ou de séchage (14), le bouchon (16) et / ou le tube d'aspiration (18) sont remplaçables.
  13. Condenseur selon l'une quelconque des revendications précédentes, caractérisé en ce que le bouchon (16) et / ou le tube d'aspiration (18) peuvent être fabriqués en matière plastique, en particulier en formant une seule et même pièce.
  14. Condenseur selon l'une quelconque des revendications précédentes, caractérisé en ce que le bouchon (16) est configuré comme un bouchon d'obturation du collecteur (8).
EP05747670A 2004-05-05 2005-05-04 Condenseur pour systeme de climatisation, notamment pour automobile Not-in-force EP1745255B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004022714A DE102004022714A1 (de) 2004-05-05 2004-05-05 Kondensator für eine Klimaanlage, insbesondere für ein Kraftfahrzeug
PCT/EP2005/004855 WO2005108896A1 (fr) 2004-05-05 2005-05-04 Condenseur pour systeme de climatisation, notamment pour automobile

Publications (2)

Publication Number Publication Date
EP1745255A1 EP1745255A1 (fr) 2007-01-24
EP1745255B1 true EP1745255B1 (fr) 2012-01-25

Family

ID=34969142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05747670A Not-in-force EP1745255B1 (fr) 2004-05-05 2005-05-04 Condenseur pour systeme de climatisation, notamment pour automobile

Country Status (5)

Country Link
US (1) US7832230B2 (fr)
EP (1) EP1745255B1 (fr)
AT (1) ATE543063T1 (fr)
DE (1) DE102004022714A1 (fr)
WO (1) WO2005108896A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005005187A1 (de) * 2005-02-03 2006-08-10 Behr Gmbh & Co. Kg Kondensator für eine Klimaanlage, insbesondere eines Kraftfahrzeuges
DE102005033168B4 (de) 2005-07-13 2009-04-16 Jahn Gmbh Umform- Und Zerspanungstechnik Trockner für ein Kühlmedium in einem Kühlmediumkreislauf, insbesondere für eine Klimaanlage eines Fahrzeugs
DE102005035344A1 (de) * 2005-07-28 2007-02-01 Modine Manufacturing Co., Racine Entnahmevorrichtung für Trocknungsmittel
JP4345843B2 (ja) * 2007-04-27 2009-10-14 株式会社デンソー 熱交換器
DE102012222664A1 (de) * 2012-08-09 2014-03-06 Behr Gmbh & Co. Kg Kondensator
DE102014002407B4 (de) * 2014-02-20 2017-12-21 Modine Manufacturing Company Gelöteter Wärmetauscher
JP6575769B2 (ja) * 2014-02-26 2019-09-18 デンソー サーマル システムズ エス．ピー．エーＤｅｎｓｏ Ｔｈｅｒｍａｌ Ｓｙｓｔｅｍｓ Ｓ．Ｐ．Ａ． 冷却剤アキュムレータを有する横置き凝縮器
EP3855101B1 (fr) * 2020-01-22 2023-05-17 Valeo Autosystemy SP. Z.O.O. Échangeur de chaleur comportant un dispositif de séchage de récepteur positionné horizontalement

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04139364A (ja) 1990-09-28 1992-05-13 Nippondenso Co Ltd 凝縮器
JPH0526539A (ja) * 1991-07-19 1993-02-02 Hitachi Ltd 熱交換器
EP0769666B1 (fr) 1995-10-18 2003-03-12 Calsonic Kansei Corporation Condenseur avec un réservoir à liquide
DE69733284T2 (de) 1996-12-25 2005-10-06 Calsonic Kansei Corp. Kondensatoraufbaustruktur
JP3801348B2 (ja) * 1997-07-28 2006-07-26 株式会社ヴァレオサーマルシステムズ レシーバタンク
JP2000227265A (ja) * 1999-02-03 2000-08-15 Denso Corp 受液器一体型冷媒凝縮器
JP2000304489A (ja) 1999-04-15 2000-11-02 Denso Corp 熱交換器及び放熱器
DE10039260B4 (de) 1999-09-10 2007-03-29 Behr Gmbh & Co. Kg Verschluß für einen Sammelbehälter
DE10066393B4 (de) * 1999-09-10 2018-09-20 Mahle International Gmbh Kondensator
JP2001174103A (ja) 1999-12-14 2001-06-29 Denso Corp 冷媒凝縮器
EP1202007A1 (fr) * 2000-10-25 2002-05-02 Skg Italiana Spa Condenseur et dessiccateur
US6874569B2 (en) 2000-12-29 2005-04-05 Visteon Global Technologies, Inc. Downflow condenser
ATE441073T1 (de) 2001-11-08 2009-09-15 Behr Gmbh & Co Kg Wärmetauscher
JP2004309127A (ja) * 2003-04-03 2004-11-04 Behr Gmbh & Co Kg 冷媒凝縮装置

Also Published As

Publication number Publication date
US7832230B2 (en) 2010-11-16
EP1745255A1 (fr) 2007-01-24
DE102004022714A1 (de) 2005-12-15
WO2005108896A1 (fr) 2005-11-17
US20080156012A1 (en) 2008-07-03
ATE543063T1 (de) 2012-02-15

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