EP1361401B1 - Cartouche de filtrage et séchage - Google Patents

Cartouche de filtrage et séchage Download PDF

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Publication number
EP1361401B1
EP1361401B1 EP20030010038 EP03010038A EP1361401B1 EP 1361401 B1 EP1361401 B1 EP 1361401B1 EP 20030010038 EP20030010038 EP 20030010038 EP 03010038 A EP03010038 A EP 03010038A EP 1361401 B1 EP1361401 B1 EP 1361401B1
Authority
EP
European Patent Office
Prior art keywords
filter
screen
filter cage
cage
openings
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.)
Expired - Lifetime
Application number
EP20030010038
Other languages
German (de)
English (en)
Other versions
EP1361401A1 (fr
Inventor
Adam Pawlowski
Albrecht Waldenburg
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.)
Hansa Metallwerke AG
Original Assignee
Hansa Metallwerke AG
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 Hansa Metallwerke AG filed Critical Hansa Metallwerke AG
Publication of EP1361401A1 publication Critical patent/EP1361401A1/fr
Application granted granted Critical
Publication of EP1361401B1 publication Critical patent/EP1361401B1/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
    • 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

Definitions

  • Such a filter dryer cartridge is in the EP 1 147 930 A1 described.
  • the filter cage has only a single set of window openings, all of which are at the same axial height.
  • the sieves which cover these window openings can all be radiated radially in the same way radially from the refrigerant over their entire area. It has been found in practice that enforce these screens relatively quickly with dirt, so that after a relatively short time the filter dryer cartridge must be replaced or cleaned.
  • Object of the present invention is to provide a filter dryer cartridge of the type mentioned in such a way that their life is longer.
  • the inventively provided Siebong provides with the existing at the bottom of the filter cage annular shell for a kind of "dirt trap” in which entrained by the refrigerant dirt particles, such as abrasion of the desiccant, and can be collected for a long time, without to hinder the flow through the filter cage.
  • This dirt particles can namely pass through the relatively coarse mesh screen of the portafilter from top to bottom, the vibrations and shocks to which the entire condenser is exposed during operation, promotes the passage of dirt particles.
  • the return of the dirt particles from bottom to top, which is not supported by such vibrations, however, is much less likely, so that the screen of the portafilter acts in a sense similar to a check valve.
  • the window openings arranged above the sieve carrier or the sieves mounted thereon can therefore only be reduced in size by the dirt which has accumulated in the lower annular bowl Probability can be achieved. At least these upper window openings therefore remain free for a long time for a flow.
  • the fact that the underlying window openings of the filter cage, for which the filter holder can not prevent an upward movement, clog over time, is in this context without interest.
  • the design according to the invention can significantly increase the time that the capacitor can operate without servicing the filter-dryer cartridge.
  • the filter cage has a set of first window openings arranged at the same axial height and a set of further window openings arranged therebelow at a different axial height.
  • the flow cross section for the refrigerant is very large in this way, so that the throttle losses remain small.
  • the screen surfaces of the filter cage and / or the screen carrier may optionally consist of screen fabric or be formed by perforations in the filter cage and / or the filter holder.
  • the filter holder on his radially outer edge is provided with a sealing lip. This sealing lip settles in the mounting position of the filter dryer cartridge on the inner circumferential surface of the collector housing and ensures that the refrigerant must actually flow through the carried by the portafilter screens on its way down.
  • reference numeral 1 denotes the housing of a collector which is part of a condenser as mentioned in the above-mentioned EP 1 147 930 A1 is described.
  • a tube-and-fins block through which refrigerant flows.
  • the partially liquid phase, partially in the gaseous phase refrigerant leaves the upper portion of the tube-fin block and enters via an inlet port 2 in the interior of the housing 1 of the collector, flows through this in the manner to be described below and passes through an outlet opening 3 from the housing 1 of the collector and in a lower section of the tube-rib block.
  • a filter dryer cartridge is arranged, which carries the reference numeral 4 as a whole. Again, this is shown in Figure 1 only in its lower part.
  • the filter-dryer cartridge 4 comprises a cylindrical, tubular desiccant housing 5, which is provided with a plurality of radial passage openings 6. Inside the desiccant housing 5 is a bed 7 of desiccant, the grain size is so large that the individual desiccant particles through the openings 6 of the desiccant housing 5 can not happen.
  • the desiccant housing 5 is elastically locked at its lower edge, which for this purpose has radially inwardly projecting projections 8, in a circumferential groove 9 of a generally provided with the reference numeral 10 filter cage.
  • the filter cage 10 has the shape of an upside down, so downwardly open pot. It has in its peripheral surface a first set of large window openings 11 which are covered by screen material 12. Axially below the first set of window openings 11, a second set of window openings 13 is provided, which are also covered with screen material 14.
  • axially parallel webs 15 which are also in the same axial height window openings 13 by axially parallel webs 16, while lying at different axial heights window openings 11 on the one hand and 13 on the other hand by a circumferentially extending web 17th are separated from each other.
  • a radially outwardly extending annular shell 18 is formed on this, which terminates in its radially outermost region in a sealing lip 19.
  • the sealing lip 19 is elastically resiliently against the inner circumferential surface of the housing 1 of the collector.
  • a groove 20 is formed in the outer circumferential surface of the filter cage 10.
  • an annular, downwardly conically widening portafilter 21 is used. This has in its conical lateral surface, as can be seen in particular in Figure 4, four annular segment-shaped openings 22, 23, 24, 25, which are each covered with coarse-meshed screen material 26.
  • the lower, radially outer edge of the portafilter 21 is bent back upwards and formed as a sealing lip 27, which bears resiliently on the inner circumferential surface of the housing 1 of the collector.
  • the present in gaseous form of the refrigerant flowing through the inlet opening 2 into the interior of the housing 1 flows primarily into the region of the collector shown in Figure 1 and occurs there, but also in the region of the desiccant housing 5 shown in the drawing, on the Through openings 6 in the interior of the desiccant housing 5 and is there dried by the desiccant 7.
  • the liquid phase of the refrigerant flows mainly in the direction shown by the arrows in the annular gap between the filter-dryer cartridge 4 and the housing 1 of the collector down and then with a first partial flow in the radial direction through the upper window openings 11 of the filter cage 10 inward, there again changes its flow direction and flows in the axial direction down from the filter cage 10 and through the outlet port. 3 of the housing 1 from the collector and in the not shown tube-fin block of the capacitor.
  • a second partial flow of the liquid refrigerant passes through the meshes of the screen material 26, then flows radially inwardly through the lower window openings 13 of the filter cage 10 and the screen material 14 covering these openings 13, merges with the refrigerant flow which has passed through the upper window openings 11 and flows together with this via the outlet opening 3.
  • Dirt particles for example, abrasion of the desiccant material 7, which is carried by the refrigerant flow, is retained by the screen material 12 of the upper window openings 11 and the screen material 14 of the lower window openings 13. Due to the vibrations to which the entire condenser and in particular also the filter cage 10 is exposed during operation of the plant, dirt retained by the filter material 12 of the upper window openings 11 passes through the coarse mesh material 26 via the openings 22 to 25 of the portafilter 21 Also, the passage of the screen material 26 is supported by the vibrations to which the filter cage 10 is constantly exposed.
  • a return of the dirt particles that have settled in the annular shell 18 of the filter cage 10, in the region of the upper window openings 11 of the screen cage 10 is largely prevented by the coarse-meshed screen material 26 of the portafilter 21.
  • the upward movement of the dirt is - unlike the downward movement - not supported by the vibrations of the Siebhimfiges 10 so that a sort of "check valve" is formed by the Siebango 21 and the sieve material located on it for the movement of dirt particles , However, this does not completely prevent a movement in the reverse direction but makes them only less likely than the movement of the dirt particles in the forward direction, ie down.
  • the filter holder 21 therefore fulfills the function of a "dirt trap" in interaction with the annular shell 18 of the filter cage 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Gases (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Claims (5)

  1. Cartouche (4) de filtration et de dessiccation pour le collecteur d'un condenseur d'une installation de climatisation, notamment d'une installation de climatisation de véhicule, avec
    a) un boîtier de dessiccateur (5), dans lequel est logé un dessiccateur (7) et qui présente des ouvertures de passage (6) pour le frigorigène de l'installation de climatisation ;
    b) une cage de filtre (10) disposée en dessous du boîtier de dessiccateur (5), qui présente dans sa face d'enveloppe au moins une baie (11) formant une surface de tamisage (12), et qui présente à son extrémité inférieure une coupelle annulaire (18) s'étendant radialement,
    caractérisée en ce que
    c) la cage de filtre (10) présente au moins une baie supplémentaire (13) formant une surface de tamisage (14), qui est disposée en dessous de la première baie (11) au moins unique et est séparée de celle-ci par une entretoise de matériau (17) s'étendant en direction circonférentielle ;
    d) un porte-tamis (21) s'étendant radialement vers l'extérieur est fixé dans la région de l'entretoise de matériau (17) sur la cage de filtre (10), lequel porte un tamis (26) à relativement grandes mailles qui doit être parcouru par le flux de frigorigène sur son parcours menant de haut en bas vers la baie supplémentaire (13) au moins unique.
  2. Cartouche de filtration et de dessiccation selon la revendication 1, caractérisée en ce que la cage de filtre (10) présente un premier groupe de premières baies (11) disposées à la même hauteur axiale, et un groupe de baies supplémentaires (13) disposées en dessous à une autre hauteur axiale.
  3. Cartouche de filtration et de dessiccation selon la revendication 1 ou 2, caractérisée en ce que les tamis (12, 14, 26) de la cage de filtre (10) et/ou du porte-tamis (21) sont réalisés en gaze métallique.
  4. Cartouche de filtration et de dessiccation selon la revendication 1 ou 2, caractérisée en ce que les tamis de la cage de filtre et/ou du porte-tamis sont formés par des perforations.
  5. Cartouche de filtration et de dessiccation selon l'une des revendications précédentes, caractérisée en ce que le porte-tamis (21) est pourvu d'une lèvre d'étanchéité (27) sur son bord situé radialement à l'extérieur.
EP20030010038 2002-05-10 2003-05-02 Cartouche de filtrage et séchage Expired - Lifetime EP1361401B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002120673 DE10220673C1 (de) 2002-05-10 2002-05-10 Filtertrocknerpatrone
DE10220673 2002-05-10

Publications (2)

Publication Number Publication Date
EP1361401A1 EP1361401A1 (fr) 2003-11-12
EP1361401B1 true EP1361401B1 (fr) 2007-08-29

Family

ID=7714508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030010038 Expired - Lifetime EP1361401B1 (fr) 2002-05-10 2003-05-02 Cartouche de filtrage et séchage

Country Status (4)

Country Link
EP (1) EP1361401B1 (fr)
DE (2) DE10220673C1 (fr)
ES (1) ES2290376T3 (fr)
PT (1) PT1361401E (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10353939A1 (de) * 2003-11-18 2005-06-16 Modine Manufacturing Co., Racine Kondensator und Herstellungsverfahren
DE102004040880B4 (de) * 2004-08-24 2008-03-27 Jahn Gmbh Umform- Und Zerspanungstechnik Filtriervorrichtung für einen Kühlmedienkreislauf, insbesondere für eine PKW-Klimaanlage
DE102005005186A1 (de) * 2005-02-03 2006-08-10 Behr Gmbh & Co. Kg Sammler eines Kältemittelkondensators, insbesondere für ein Kraftfahrzeug
ITMI20110252A1 (it) * 2011-02-21 2012-08-22 Skg Italia S P A Tubo collettore per condensatori di impianti di climatizzazione per veicoli

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4402927B4 (de) * 1994-02-01 2008-02-14 Behr Gmbh & Co. Kg Kondensator für eine Klimaanlage eines Fahrzeuges
DE29700640U1 (de) * 1997-01-15 1997-05-22 Deutsche Controls GmbH, 80637 München Fahrzeug-Klimaanlage und Trocknerpatrone für eine Fahrzeug-Klimaanlage
ES2167299T3 (es) * 2000-03-24 2002-05-16 Modine Mfg Co Condensador para la instalacion de climatizacion de un vehiculo automovil.

Also Published As

Publication number Publication date
EP1361401A1 (fr) 2003-11-12
DE50308044D1 (de) 2007-10-11
DE10220673C1 (de) 2003-07-03
PT1361401E (pt) 2007-10-23
ES2290376T3 (es) 2008-02-16

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