EP1387134A2 - Sécheur pour condenseur à fluide frigorigène - Google Patents

Sécheur pour condenseur à fluide frigorigène Download PDF

Info

Publication number
EP1387134A2
EP1387134A2 EP03015294A EP03015294A EP1387134A2 EP 1387134 A2 EP1387134 A2 EP 1387134A2 EP 03015294 A EP03015294 A EP 03015294A EP 03015294 A EP03015294 A EP 03015294A EP 1387134 A2 EP1387134 A2 EP 1387134A2
Authority
EP
European Patent Office
Prior art keywords
dryer
collector
molded part
refrigerant
injection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03015294A
Other languages
German (de)
English (en)
Other versions
EP1387134A3 (fr
EP1387134B1 (fr
Inventor
Uwe Dipl.-Ing. Förster (FH)
Kurt Dr.-Ing. 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 EP1387134A2 publication Critical patent/EP1387134A2/fr
Publication of EP1387134A3 publication Critical patent/EP1387134A3/fr
Application granted granted Critical
Publication of EP1387134B1 publication Critical patent/EP1387134B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a dryer for a refrigerant circuit, in particular for motor vehicle air conditioners, and a collector with such a dryer and a heat exchanger with such a collector.
  • a dryer was known from DE-A 197 12 714 of the applicant.
  • the invention also relates to the use of a polymer product known under the trademark CSP Technologies .
  • Automotive air conditioning systems are operated with a refrigerant (R134 a), which, for. B. due to leaks in the system after a certain Operating time absorbs moisture (H2O).
  • This water is in the refrigerant undesirable and is therefore by means of a dryer, either in one separate collector or a collector integrated with the condenser is disposed of, withdrawn.
  • DE-C 42 38 853 of the Applicant was a so-called capacitor module known in which the collector in the condenser is integrated and in it a dryer cartridge or so called dryer bag receives.
  • the dryer cartridge consists of a perforated plastic container containing drier granules, e.g. B. off Molecular sieve is filled.
  • the dryer bag consists of one for the Refrigerant permeable fabric or fleece and is also with Dryer granules filled.
  • a similar dryer cartridge was by DE-A 197 12 714 of Applicant known: it consists of a cage-like plastic container, which is lined with a sieve and also dryer granules in the form absorbs a bed of material. So that the granules during the Operation in the vehicle is not subject to excessive abrasion, the Granule filling by a spring-loaded disc, which within the Plastic container is movable, compressed.
  • These known Dryer versions for refrigerant circuits are with regard to their Production and transfer as well as positioning in the collector with one associated with certain production and costs.
  • the dryer is produced as a plastic injection-molded part from a known mass, which consists essentially of a polymer, a so-called channel former and a molecular sieve.
  • the molecular sieve performs the function of drying, ie the dehydration of the refrigerant.
  • the channel former causes channels to form in the polymer composition.
  • the refrigerant has access from the outside to the molecular sieve and can be dried.
  • the advantage of this dryer is that two functions, namely the container and the drying are combined in an injection molded part, because the polymer mass absorbs the dryer in itself and thus acts as a kind of container.
  • the entire dryer is made of plastic, such as from the commercial, sold under the brand "CSP Technologies" material, as an injection molded part made of any shape.
  • the injection-molded part is attached to the inner shape of a collector adapted to the refrigerant circuit.
  • the injection molded part can be massive or be designed as a hollow body - it only has enough Dryer material (molecular sieve) for the drying of the refrigerant Make available.
  • This injection molded part can also be placed anywhere in the Collector arranged and z. B. be fixed by clamping.
  • the outer surface of the injection molded part with openings is provided, through which the refrigerant better access into the "Channel system" receives with the embedded molecular sieve.
  • the Injection molded part for example, have a fir tree-shaped structure.
  • the solution to the above problem is also the use of a known polymer product, which is known and sold under the brand CSP Technologies .
  • the new use of this product is that it is processed as an injection molded part in a plastic injection molding machine and used as a dryer for dehydrating refrigerant of an air conditioner.
  • the polymer composition is thus used as an amorphous carrier of the molecular sieve or dryer material.
  • Dryer with a filter unit connectable so that the dryer through or flowing refrigerant is also filtered.
  • the connection is here for example, a plug-in, a clips, an adhesive or any other connection.
  • the dryer forms with a Filter unit a structural unit.
  • the filter unit can, for example, a fine-meshed network have, with the foreign body as with a sieve from the refrigerant be filtered.
  • a collector for a refrigerant in a closed circuit used so that a refrigerant flowing through the collector can be dried, that is, that deprived of the refrigerant water can be.
  • the dryer arranged filter element such as a sieve, the can If necessary, additional refrigerant can be filtered, whereby the collector combines several functions.
  • the collector with the inventive dryer in a heat exchanger with pipes, ribs and two headers inserted such that a refrigerant containing the Passes through the heat exchanger before, during or after the Collector flows through.
  • the heat exchanger is as Capacitor formed.
  • Such heat exchangers are known from DE 42 38 853 C2 became known, which hereby expressly to Disclosure content belongs.
  • Fig. 1 shows an injection molded part 1, which acts as a dryer in the refrigerant circuit of a motor vehicle air conditioning, not shown.
  • This injection-molded part 1 is produced by injection molding as a solid cylinder made of a special plastic mixture, which will be explained below.
  • the injection molded part 1 has circumferentially distributed cam-like spacers 2, which serve to fix in a housing, not shown here.
  • openings 3 are provided, which allow a better access of the refrigerant into the internal structure of the dryer 1.
  • the mass of this injection-molded part 1 is porous, wherein the carrier, which also causes the strength, consists of a polymer.
  • the plastic in the form of polymer is traversed by a multiplicity of channels, which are produced by a so-called channel former during manufacture. In these channels is incorporated as a third component, a molecular sieve in the form of particles.
  • Such a plastic blend is known as a commercial product under the CSP Technologies brand.
  • FIG. 2 shows an enlarged view of a detail X from a section in the plane II-II through the mass of the injection molded part 1 - in a highly simplified, schematic representation.
  • a carrier 4 cross-hatched
  • channels 5 are about cubic particles 6 (hatched) embedded, which are referred to as molecular sieve and consist of a known dryer material. This molecular sieve 6 is therefore able to absorb the moisture contained in the refrigerant.
  • Fig. 3 shows a portion of a refrigerant condenser 10 having a manifold 11 and an integrated collector 12, the z. T. shown as a view and z. T. is cut open, ie the window 13 releases the view into the interior.
  • the collector 12 is connected in a known manner via the two overflow openings 14, 15 with the manifold 11, so that the collector 13 is constantly flowed through during operation of the air conditioner of refrigerant.
  • the overflow opening 14 of the dryer 1 shown in Fig. 1 is arranged, approximately coaxial with the cross section of the collector 13.
  • an annular gap 16 over the the refrigerant (not shown) rise in the liquid or vapor phase and the surface of the dryer 1 wash around or can flow around.
  • the refrigerant first penetrates under the surface of the injection molded part 1 and thus enters the channel structure 5 shown schematically in FIG. 2 with the molecular sieve 6. This causes a drying of the refrigerant.
  • the collector 13 can - which is not shown here - with a detachable Cover be provided so that an exchange of the injection molded part 1 from Maintenance is possible.
  • the injection molded part 1 is not in here shown manner in the collector 13 fixed, z. B. by clamping with the Inner wall of the collector 13 or by resting on a not shown sieve part in the lower region of the collector thirteenth
  • FIG. 4 shows a further arrangement of a dryer 20 in a collector 21 of a capacitor module 22.
  • the dryer 20 consists of a polymer, a channel former and a molecular sieve, and, in contrast to the dryer shown in FIG. 3, is formed integrally with a filter unit 23 in that the filter unit 23 is injection-molded onto the dryer 20.
  • the filter unit 23 has a frame 24 with openings 25 for a Flow through a refrigerant. Sealing lips 26 provide for a Sealing against the collector 21 so that the refrigerant is forced to flow through a screen 27 injected into the filter unit 23. The Sealing lips 26 serve at the same time a fixation of the filter unit 23rd and the dryer 20 existing component group in the collector 21st
  • the collector 21 is integrated into the capacitor module 22 such that a Refrigerant, which flows through the condenser 22, after cooling in the tube-fin network 28 through an inlet opening 29 of a Collecting tube 30 of the capacitor module 22 flows into the collector 21. After an optionally occurring drying in the dryer 20 and Filtered by the filter unit 23, the refrigerant flows through a Outlet 31 back into the manifold 30 and from there to a further cooling in an unspecified undercooling of the capacitor module 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Drying Of Solid Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP03015294A 2002-07-31 2003-07-07 Sécheur pour condenseur à fluide frigorigène Expired - Lifetime EP1387134B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10234889A DE10234889A1 (de) 2002-07-31 2002-07-31 Trockner für Kältemittelkondensator
DE10234889 2002-07-31

Publications (3)

Publication Number Publication Date
EP1387134A2 true EP1387134A2 (fr) 2004-02-04
EP1387134A3 EP1387134A3 (fr) 2005-12-21
EP1387134B1 EP1387134B1 (fr) 2007-08-15

Family

ID=30010527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03015294A Expired - Lifetime EP1387134B1 (fr) 2002-07-31 2003-07-07 Sécheur pour condenseur à fluide frigorigène

Country Status (4)

Country Link
EP (1) EP1387134B1 (fr)
AT (1) ATE370374T1 (fr)
DE (2) DE10234889A1 (fr)
ES (1) ES2291567T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1566600A1 (fr) * 2004-02-20 2005-08-24 Delphi Technologies, Inc. Cartouche déshydratante
EP1764569A1 (fr) * 2005-09-16 2007-03-21 Behr GmbH & Co. KG Accumulateur avec un élément sécheur-filtre pour un condenseur
EP1703234A3 (fr) * 2005-02-03 2008-11-19 Behr GmbH & Co. KG Collecteur pour condenseur à refrigérant, en particulier pour vehicule automobile
US9599414B2 (en) 2010-11-17 2017-03-21 Zhejiang Sanhua Automotive Components Co., Ltd Liquid reservoir

Families Citing this family (2)

* 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
DE102006056469A1 (de) * 2006-11-28 2008-05-29 Behr Gmbh & Co. Kg Sammler für einen Kältekreis

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19712714A1 (de) 1997-03-26 1998-10-01 Behr Gmbh & Co Einsatz für ein Sammlerprofil eines Kondensators
DE4238853C2 (de) 1992-11-18 2001-05-03 Behr Gmbh & Co Kondensator für eine Klimaanlage eines Fahrzeuges

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013566A (en) * 1975-04-07 1977-03-22 Adsorbex, Incorporated Flexible desiccant body
DE4319293C2 (de) * 1993-06-10 1998-08-27 Behr Gmbh & Co Kondensator für eine Klimaanlage
DE4402927B4 (de) * 1994-02-01 2008-02-14 Behr Gmbh & Co. Kg Kondensator für eine Klimaanlage eines Fahrzeuges
US6124006A (en) * 1995-04-19 2000-09-26 Capitol Specialty Plastics, Inc. Modified polymers having controlled transmission rates
DE29700640U1 (de) * 1997-01-15 1997-05-22 Deutsche Controls GmbH, 80637 München Fahrzeug-Klimaanlage und Trocknerpatrone für eine Fahrzeug-Klimaanlage
DE29721546U1 (de) * 1997-12-05 1998-01-29 Deutsche Controls GmbH, 80637 München Trocknerpatrone für Fahrzeug-Klimaanlage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238853C2 (de) 1992-11-18 2001-05-03 Behr Gmbh & Co Kondensator für eine Klimaanlage eines Fahrzeuges
DE19712714A1 (de) 1997-03-26 1998-10-01 Behr Gmbh & Co Einsatz für ein Sammlerprofil eines Kondensators

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1566600A1 (fr) * 2004-02-20 2005-08-24 Delphi Technologies, Inc. Cartouche déshydratante
EP1703234A3 (fr) * 2005-02-03 2008-11-19 Behr GmbH & Co. KG Collecteur pour condenseur à refrigérant, en particulier pour vehicule automobile
EP1764569A1 (fr) * 2005-09-16 2007-03-21 Behr GmbH & Co. KG Accumulateur avec un élément sécheur-filtre pour un condenseur
US9599414B2 (en) 2010-11-17 2017-03-21 Zhejiang Sanhua Automotive Components Co., Ltd Liquid reservoir

Also Published As

Publication number Publication date
DE50307933D1 (de) 2007-09-27
EP1387134A3 (fr) 2005-12-21
DE10234889A1 (de) 2004-02-19
EP1387134B1 (fr) 2007-08-15
ATE370374T1 (de) 2007-09-15
ES2291567T3 (es) 2008-03-01

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