EP1353134A1 - Accumulateur sécheur - Google Patents

Accumulateur sécheur Download PDF

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Publication number
EP1353134A1
EP1353134A1 EP02008327A EP02008327A EP1353134A1 EP 1353134 A1 EP1353134 A1 EP 1353134A1 EP 02008327 A EP02008327 A EP 02008327A EP 02008327 A EP02008327 A EP 02008327A EP 1353134 A1 EP1353134 A1 EP 1353134A1
Authority
EP
European Patent Office
Prior art keywords
receiver drier
casing
ring
wall
connector head
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
EP02008327A
Other languages
German (de)
English (en)
Other versions
EP1353134B1 (fr
Inventor
Michele Bernini
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.)
Finber SpA
Original Assignee
SKG Italiana SpA
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 SKG Italiana SpA filed Critical SKG Italiana SpA
Priority to EP20020008327 priority Critical patent/EP1353134B1/fr
Priority to DE2002609395 priority patent/DE60209395T2/de
Publication of EP1353134A1 publication Critical patent/EP1353134A1/fr
Application granted granted Critical
Publication of EP1353134B1 publication Critical patent/EP1353134B1/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
    • F25B43/006—Accumulators

Definitions

  • the invention relates to a receiver drier for a refrigerating system operating with a liquid and/or gaseous refrigerant particularly for an automotive air-conditioning system.
  • the connector head of a metallic receiver drier casing of DE 36 06 029 is unitarily formed with the casing wall by forging.
  • the separately prefabricated metallic connector head inserted into the casing end is fixed in place by welding.
  • the separately fabricated connector head of the receiver drier of DE 29 710 638 U is inserted into the open casing end and is fixed in place by a bayonet connection or a threaded connection.
  • the connector head and the casing are made from plastics materials enforced by long glass fibres.
  • the connector head of the receiver drier of DE 90 11 384 U is secured in place in the open end of the drier casing by forming the opening edge of the casing into a circumferential groove of the connector head.
  • the casing is made from fibre reinforced plastics materials.
  • receiver drier of the kind disclosed and which can be fabricated with low costs and with small diameter dimensions. Furthermore, the receiver drier concept should allow to provide a simple and tight connection of the receiver drier with the mounting structure to which the receiver drier is to be mounted, even in case of CO 2 refrigerant in the system. Of particular interest is to achieve a small diameter receiver drier apt to be combined with a condenser casing in a space saving manner.
  • a rigid coupling between the casing and the connector head defined by circular inward plastic deformation of the casing wall surprisingly allows to design the receiver drier with very small outer diameter, as it is, e.g., desirable for combining the receiver drier with a condenser.
  • the connection easily can be sealed reliably and is easy to manufacture. This connection principle is useful for receiver driers installed separately from or at or integrated into a condenser.
  • a reliable and secure joint is achieved when one circumferential wall region is crimped inwardly.
  • the casing wall either is crimped in circumferential direction continuously, or in separated crimped wall spots.
  • the circumferential crimping or the crimped wall spots may engage into a circumferential continuous outer groove or in circumferentially distributed depressions of the connector head. This allows to achieve a durable form-fit and a force-fit.
  • the casing wall may be deformed inwardly either directly at a casing wall end or in axial distance from the casing wall end.
  • the sealing effect between the connector head and the casing wall is not only provided by the inward deformation of the casing wall, but in addition by at least one O-ring or elastomeric sealing ring or a metallic welding ring sealing assembly located adjacently to said inward deformation of the casing wall.
  • the inward deformation of the casing wall mainly serves to reliably connect the connector head to the casing, while the sealing assembly assures the necessary tightness against the relatively high interior pressures during operation of the receiver drier.
  • connector head of steel, aluminium or another light metal alloy or plastics material, and to manufacture the casing or casing wall of aluminium or another light metal alloy or even steel.
  • Aluminium or steel provide the necessary rigidity of the inwardly deformed circumferential casing wall region.
  • an elastomeric sealing ring or a metallic welding ring (e.g. made from aluminium) is provided consisting of a tubular sleeve body and at least two axially spaced apart integrated parallel ring structures each of a radial thickness larger than the radial thickness of the sleeve body.
  • the elastomeric sealing ring is easy to manufacture and provides the necessary sealing effect by radial compression in a reliable fashion.
  • the aluminium welding ring provides the needed tightness after a thermal treatment, e.g. in an oven.
  • the elastomeric sealing ring or the metallic welding ring easily can be placed on the connector insert.
  • the connector insert needs less machining than for several O-rings.
  • each ring structure should protrude over the sleeve body inner and outer walls substantially symmetrically such that well defined inner and/or outer sealing regions will be achieved.
  • At least one of the inlet/outlet ports is defined by a unitarily integrated tubular projection of the connector head.
  • the tubular projection has an exterior, substantially cylindrical smooth seat surface for an elastomeric sealing ring or a metallic welding ring consisting of a tubular body with unitarily integrated and parallel ring structures.
  • a receiver drier R for a refrigerating system operating with a liquid and/or gaseous refrigerant, particularly for an automotive air-conditioning system operating with a standard refrigerant or even with CO 2 (Fig. 1) is intended to be mounted in the refrigerating system in a stand-alone position or in combination or integrated with a not shown condenser.
  • the task of the receiver drier is to store a predetermined amount of refrigerant and to extract water which may be contained in the refrigerant.
  • the receiver drier R contains at least one charge of a desiccant material and filter means (not shown) for holding back impurities.
  • the receiver drier R has a substantially cylindrical casing 1 which is closed at a first end 2 by a dome (or a cap) and by an inserted connected head H at the other end 3.
  • the connector head H is formed or equipped with connector inserts C serving to establish a sealed flow connection with a not shown connecting structure to which the receiver drier R is to be mounted.
  • the connector head H is inserted into the casing 1 and is rigidly coupled to the casing 1 by radial inward deformation D in a circumferential wall region A, preferably by crimping.
  • the casing 1 can be manufactured from steel or aluminium or another light metal alloy, e.g. by extrusion.
  • the connector head H can be fabricated from aluminium or another light metal alloy or from plastics material.
  • Fig. 2 shows that casing 1 has an essentially cylindrical wall 4 terminating at a free end 7.
  • Connector head H has a shoulder 6 limiting the penetration depth of connector head H into casing 1.
  • Connector head H has an exterior, circumferential continuous, outwardly opening groove 5, into which circumferential wall region A is deformed radially, e.g. by crimping or the like.
  • the deformation D is a permanent plastic deformation and provides a form-fit and a force-fit fixing connector head H in place.
  • the inward deformation D can consist of a series of circumferentially separated indents or depressions of the casing wall 4 engaging either into groove 5 or into a series of respectively designed exterior recess of the connector head H.
  • At least one O-ring 10 is located in connector head H in radial contact with the inner side of casing 4.
  • two axially distant O-rings are provided at the side of the circumferential deformation D remote from the free end 7.
  • Connector head H contains an inlet port 8 and an outlet port 9.
  • Connector inserts C are provided for insertion into the respective ports 8, 9.
  • Each connector insert C is a separately fabricated part made from aluminium or plastics material.
  • Each connector insert C is of tubular shape and has two essentially cylindrical and smooth seat surfaces 11, 12 separated by an intermediate land 17 and shoulders 16.
  • the upper connector insert C of Fig. 2 is equipped with two rings 13 either of elastomeric material or of aluminium, each consisting of a tubular sleeve body 14 with in this case two unitarily integrated and parallel ring structures 15.
  • Each ring structure 15 protrudes beyond the inner and outer surfaces of the sleeve body 14.
  • Each ring structure 15 is provided at a short distance from the adjacent sleeve body end. The axial distance between the ring structures 15 is larger than their respective distance from the adjacent sleeve body end.
  • the dimension of ring 13 is selected such that at least the ring structures 15 are compressed radially as soon as the connector insert C is inserted into port 8 or 9, respectively.
  • the other end of the connector insert C then is inserted in a respective port of a connecting structure, like into the connecting structure 19 of Fig. 4.
  • a thermal treatment welding
  • connector head H is rigidly coupled to the casing 1 by inward deformation D of casing wall 4 and only has inlet port 8 with an inner wall 18 intended for co-action with either a ring 13 of the upper connector insert C of Fig. 2, or the O-rings 13' of the lower connector insert C in Fig. 2.
  • the other connector C of outlet port 9 is constituted by a unitarily tubular projection of connector head H. The projection is machined with a substantially cylindrical and smooth seat surface 11 intended to receive a ring 13 as in Fig. 2.
  • Fig. 4 shows an embodiment of a connector head H being manufactured with integrated connectors C each formed by a tubular projection around the prolongation of inlet/outlet ports 8, 9.
  • the connector head H is rigidly coupled to the casing 1 by inward plastic deformation D of casing wall 4 and is sealed by O-rings 10 (or one ring 13).
  • Each tubular projection carries a ring 13, as described in connection with the upper connector insert C in Fig. 2.
  • the connectors C are intended to be inserted into respective ports 20, 21 of a mounting structure 19 to which the receiver drier R is to be mounted.
  • aluminium welding rings 13 they might provide the sealing effect after welding the condenser casing and the casing at the same time in an oven.
  • connector head H may contain at least one threaded hole serving to fix connector head H at mounting structure 9.
  • Each of the rings 13 may comprise more than two ring structures 15 in its sleeve body 14.
  • the casing 1 may be extruded from aluminium, e.g. with an integrated ear constituting a fixture for or constituting a mounting bracket itself.
  • the casing and/or the connector head H may be equipped with a socket for a pressure sensor or another type of a sensor
  • the receiver drier R as well is useful generally for any type of refrigerating systems, air-conditioning systems or refrigerators.
  • the deformation joint principle is particularly expedient for systems operating with CO 2 as the high pressure refrigerant (about 120 bar instead of about 30 bar of the standard refrigerant).

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)
  • Air-Conditioning For Vehicles (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP20020008327 2002-04-11 2002-04-11 Accumulateur sécheur Expired - Lifetime EP1353134B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20020008327 EP1353134B1 (fr) 2002-04-11 2002-04-11 Accumulateur sécheur
DE2002609395 DE60209395T2 (de) 2002-04-11 2002-04-11 Sammel-Trockner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020008327 EP1353134B1 (fr) 2002-04-11 2002-04-11 Accumulateur sécheur

Publications (2)

Publication Number Publication Date
EP1353134A1 true EP1353134A1 (fr) 2003-10-15
EP1353134B1 EP1353134B1 (fr) 2006-03-01

Family

ID=28051780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020008327 Expired - Lifetime EP1353134B1 (fr) 2002-04-11 2002-04-11 Accumulateur sécheur

Country Status (2)

Country Link
EP (1) EP1353134B1 (fr)
DE (1) DE60209395T2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007022882A1 (fr) * 2005-08-23 2007-03-01 Ti Automotive Cisliano S.R.L. Element d'etancheite pour dispositif de refroidissement
US9599414B2 (en) 2010-11-17 2017-03-21 Zhejiang Sanhua Automotive Components Co., Ltd Liquid reservoir
WO2023213609A1 (fr) * 2022-05-05 2023-11-09 Valeo Systemes Thermiques Ensemble pour réservoir dessiccateur au sein d'un circuit de gestion thermique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015205553A1 (de) * 2015-03-26 2016-09-29 Mahle International Gmbh Behälter einer Klimaanlage

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452897A (en) * 1965-01-05 1969-07-01 Myron L Anthony Methods of sealing cylindrical thinwall ductile metal can bodies
DE3606029A1 (de) 1985-02-25 1986-08-28 Nippondenso Co. Ltd., Kariya, Aichi Behaelter zum aufnehmen des kuehlmittels eines kuehlkreislaufes
DE9011384U1 (de) 1990-08-01 1990-10-25 CTA, Gesellschaft für Composite Technologie, Automation mbH, 2100 Hamburg Trocknerbehälter für eine Klimaanlage
US5191775A (en) * 1988-10-31 1993-03-09 Showa Aluminum Corporation Refrigerant receiver
EP0672874A1 (fr) * 1994-03-16 1995-09-20 Eaton Corporation Assemblage de conduit pour réservoir dessiccateur ou accumulateur
US5603152A (en) * 1994-12-19 1997-02-18 General Motors Corporation Method for manufacturing a two block line connector
DE29710638U1 (de) 1997-06-18 1997-08-14 Deutsche Controls GmbH, 80637 München Aufnahmebehälter für eine Dessikativ-Charge
EP0825399A1 (fr) * 1996-08-21 1998-02-25 Automotive Fluid Systems, Inc. Connexion entre accumulateur et déflecteur, et procédé de connexion
EP0833117A2 (fr) * 1996-09-27 1998-04-01 Automotive Fluid Systems, Inc. Récipient sous pression et procédé pour sa fabrication
US5845511A (en) * 1996-06-28 1998-12-08 Pacific Industrial Co., Ltd. Receiver having expansion mechanism

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452897A (en) * 1965-01-05 1969-07-01 Myron L Anthony Methods of sealing cylindrical thinwall ductile metal can bodies
DE3606029A1 (de) 1985-02-25 1986-08-28 Nippondenso Co. Ltd., Kariya, Aichi Behaelter zum aufnehmen des kuehlmittels eines kuehlkreislaufes
US5191775A (en) * 1988-10-31 1993-03-09 Showa Aluminum Corporation Refrigerant receiver
DE9011384U1 (de) 1990-08-01 1990-10-25 CTA, Gesellschaft für Composite Technologie, Automation mbH, 2100 Hamburg Trocknerbehälter für eine Klimaanlage
EP0672874A1 (fr) * 1994-03-16 1995-09-20 Eaton Corporation Assemblage de conduit pour réservoir dessiccateur ou accumulateur
US5603152A (en) * 1994-12-19 1997-02-18 General Motors Corporation Method for manufacturing a two block line connector
US5845511A (en) * 1996-06-28 1998-12-08 Pacific Industrial Co., Ltd. Receiver having expansion mechanism
EP0825399A1 (fr) * 1996-08-21 1998-02-25 Automotive Fluid Systems, Inc. Connexion entre accumulateur et déflecteur, et procédé de connexion
EP0833117A2 (fr) * 1996-09-27 1998-04-01 Automotive Fluid Systems, Inc. Récipient sous pression et procédé pour sa fabrication
DE29710638U1 (de) 1997-06-18 1997-08-14 Deutsche Controls GmbH, 80637 München Aufnahmebehälter für eine Dessikativ-Charge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007022882A1 (fr) * 2005-08-23 2007-03-01 Ti Automotive Cisliano S.R.L. Element d'etancheite pour dispositif de refroidissement
US9599414B2 (en) 2010-11-17 2017-03-21 Zhejiang Sanhua Automotive Components Co., Ltd Liquid reservoir
WO2023213609A1 (fr) * 2022-05-05 2023-11-09 Valeo Systemes Thermiques Ensemble pour réservoir dessiccateur au sein d'un circuit de gestion thermique
FR3135228A1 (fr) * 2022-05-05 2023-11-10 Valeo Systemes Thermiques Ensemble pour réservoir dessiccateur au sein d’un circuit de gestion thermique

Also Published As

Publication number Publication date
DE60209395T2 (de) 2006-08-03
EP1353134B1 (fr) 2006-03-01
DE60209395D1 (de) 2006-04-27

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