EP1580499A2 - Condenser cartridge, in particular for an air-conditioning unit for vehicles - Google Patents

Condenser cartridge, in particular for an air-conditioning unit for vehicles Download PDF

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Publication number
EP1580499A2
EP1580499A2 EP05075616A EP05075616A EP1580499A2 EP 1580499 A2 EP1580499 A2 EP 1580499A2 EP 05075616 A EP05075616 A EP 05075616A EP 05075616 A EP05075616 A EP 05075616A EP 1580499 A2 EP1580499 A2 EP 1580499A2
Authority
EP
European Patent Office
Prior art keywords
casing
cartridge
cartridge according
filtering element
cap
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.)
Withdrawn
Application number
EP05075616A
Other languages
German (de)
French (fr)
Other versions
EP1580499A3 (en
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.)
SKG Italia SpA
Original Assignee
SKG Italia 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 Italia SpA filed Critical SKG Italia SpA
Publication of EP1580499A2 publication Critical patent/EP1580499A2/en
Publication of EP1580499A3 publication Critical patent/EP1580499A3/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003Filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00Details of evaporators; Details of condensers
    • F25B2339/04Details of condensers
    • F25B2339/044Condensers with an integrated receiver
    • F25B2339/0441Condensers with an integrated receiver containing a drier or a filter
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00General 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
    • F25B2400/16Receivers
    • F25B2400/162Receivers characterised by the plug or stop

Definitions

  • the present invention refers to a condenser cartridge, in particular of an air-conditioning unit for vehicles.
  • An air-conditioning unit for vehicles comprises, amongst other things, a condenser, a drying means for removing particles of water from the cooling liquid and a filtering element for holding impurities that may be present in the cooling liquid.
  • the so-called condenser equipped with integrated dehydrating filter therefore has the task of removing water particles from the cooling liquid, filtering impurities that may be present in the cooling liquid and acting as an accumulator for a certain amount of liquid.
  • the drying means which must be replaced after a certain period of operation of the air-conditioning unit, can be contained in a rigid casing or else in a permeable bag.
  • the collector tube is therefore provided at one of its cylindrical ends with a removable cap, which makes a hermetic seal during the operation of the unit and allows access to the internal components for maintenance.
  • the cylindrical caps are therefore, for example, generally equipped with at least one seat for the insertion of a rubber sealing ring, or O-ring, which makes the seal against the inside of the wall of the collector tube.
  • an elastic safety element to keep the cap stably in position in the cylindrical tube during the operation of the condenser.
  • the elastic safety element for example consisting of a Seeger ring, is positioned on the top of the cap itself in engagement against the inner wall of the collector tube.
  • the removable caps for collector tubes can either be separate from the casing containing the drying means or possibly joined to it through a spacer shaft, rigidly connected, or else made integrally, with the cap and coupled with the cartridge.
  • Cartridges made in such a way occupy the entire height of the collector tube and are positioned in axis with respect to it on the bottom, at the cap and at a separator ring that divides the inlet portion of the fluid into the collector tube from the outlet portion.
  • the described cartridges with integrated cap which occupy the entire height of the tube, significantly reduce the useful volume for the cooling fluid.
  • known cartridges require a spacer shaft that shall be of greater length the smaller the size of the casing containing the drying means.
  • Long spacer shafts represent a waste of material, a reduction of the useful volume for the cooling fluid and increase the aforementioned problems of positioning of the cartridge inside the collector tube.
  • the purpose of the present invention is that of making a condenser cartridge, in particular of an air-conditioning unit for vehicles that overcomes the quoted drawbacks.
  • Another purpose of the present invention is that of making a cartridge that improves the performance of the unit.
  • Another purpose of the present invention is that of making a cartridge that is particularly simple and functional, with low production and assembly costs.
  • a condenser cartridge in particular of an air-conditioning unit for vehicles is shown, wholly indicated with 10.
  • the cartridge 10 is shown inserted axially in an end of a cylindrical collector tube 11, stably coupled through suitable known supports with an end of a condenser, not shown.
  • the cartridge 10, shown in figure 1, comprises a cylindrical cap 12, which makes the seal inside the collector tube 11, and a casing 13 that contains a drying means.
  • the casing 13 can comprise a rigid containment element provided with a portion equipped with a plurality of holes, or openings 14 for the passage of the cooling fluid through the drying means, as shown in figure 1, or else it can comprise a bag that is permeable to the cooling fluid applied to the filtering element 15 according to that which is depicted in figure 4.
  • the casing 13 also carries, at one of its ends, a filtering element 15 that holds possible impurities contained in the cooling liquid.
  • the cap 12 and the casing 13 are coupled through a ball-and-socket joint 16.
  • the ball-and-socket joint 16 in the example shown in the figures, comprises a first portion 17, or spherical element, made integrally at one end of the casing 13 and a second portion 18, or matching socket, made integrally on the inner surface of the cap 12.
  • the ball-and-socket joint 16, and in particular the spherical element 17, is made on the casing 13 close to the end carrying the filtering element 15.
  • a perimetric 0-ring 23 is arranged that, in the example shown, is formed integrally on the outer wall of the casing 13, but which could also be made integral with the collector tube 11.
  • the cartridge 10 according to the present invention is inserted from the bottom towards the top in the lower end of the collector tube 11.
  • An elastic safety ring 21 is arranged in contact with the outer surface of the cap and in engagement against the inner wall of the collector tube 11 to ensure the seal of the cap 12 in operating conditions.
  • the cap 12 which makes a seal against the inner wall of the tube 11, supports the casing 13 of the cartridge 10 arranged with the filtering element 15 in the lower part of the tube 11.
  • the separator ring 23 is also positioned making a seal against the inner wall of the tube 11 and divides the collector tube in a watertight manner into two separate chambers.
  • the cooling fluid coming from the condenser enters through the upper inlet opening 19 into an upper chamber in which the portion of casing 13 provided with openings 14 is immersed. Then the fluid, through the openings 14, reaches the inside of the casing 13 where it meets the drying means contained. The fluid then goes out from the lower part of the casing 13 through the filtering element 15 and fills the lower chamber of the collector tube 11, from which it comes out through a lower outlet opening 20.
  • projecting centring elements 22 can also be foreseen on the casing 13 of the cartridge 10, to guide the positioning of the cartridge 10 itself in the collector tube 11.
  • the condenser cartridge in particular of an air-conditioning unit for vehicles object of the present invention has the advantage, when mounted in the tube, of adapting to it even in the presence of possible size imperfections ensuring a better seal of the separator ring.
  • the cartridge object of the present invention is advantageously used in condenser tubes open at the lower end, in which the filtering part must be arranged close to the lower part of the tube.
  • the cartridge according to the present invention can advantageously be made in small sizes.

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  • 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

A condenser cartridge, in particular of an air-conditioning unit for vehicles, which can be inserted axially in an end of a cylindrical collector tube (11), comprises a cylindrical cap (12), suitable for making the seal inside the collector tube (11), and a casing (13) for a drying means that carries a filtering element (15) at one end, in which the cap (12) and the casing (13) are coupled through a ball-and-socket joint (16).

Description

  • The present invention refers to a condenser cartridge, in particular of an air-conditioning unit for vehicles.
  • An air-conditioning unit for vehicles comprises, amongst other things, a condenser, a drying means for removing particles of water from the cooling liquid and a filtering element for holding impurities that may be present in the cooling liquid.
  • It is know commonplace to integrate the drying means and the filtering element directly inside a collector tube of the condenser.
  • The so-called condenser equipped with integrated dehydrating filter therefore has the task of removing water particles from the cooling liquid, filtering impurities that may be present in the cooling liquid and acting as an accumulator for a certain amount of liquid. The drying means, which must be replaced after a certain period of operation of the air-conditioning unit, can be contained in a rigid casing or else in a permeable bag.
  • The collector tube is therefore provided at one of its cylindrical ends with a removable cap, which makes a hermetic seal during the operation of the unit and allows access to the internal components for maintenance.
  • The cylindrical caps are therefore, for example, generally equipped with at least one seat for the insertion of a rubber sealing ring, or O-ring, which makes the seal against the inside of the wall of the collector tube.
  • Moreover, it is known to arrange an elastic safety element to keep the cap stably in position in the cylindrical tube during the operation of the condenser. The elastic safety element, for example consisting of a Seeger ring, is positioned on the top of the cap itself in engagement against the inner wall of the collector tube.
  • The removable caps for collector tubes can either be separate from the casing containing the drying means or possibly joined to it through a spacer shaft, rigidly connected, or else made integrally, with the cap and coupled with the cartridge.
  • Cartridges made in such a way occupy the entire height of the collector tube and are positioned in axis with respect to it on the bottom, at the cap and at a separator ring that divides the inlet portion of the fluid into the collector tube from the outlet portion.
  • Such cartridges do not carry out an optimal positioning between the cartridge and the collector tube. Indeed, both of the components must currently be produced with a high precision of dimensions to make a correct seal of the intermediate ring on the inner wall of the collector tube, an indispensable condition for the correct operation of the air-conditioning unit.
  • Moreover, the described cartridges with integrated cap, which occupy the entire height of the tube, significantly reduce the useful volume for the cooling fluid.
  • In addition, known cartridges require a spacer shaft that shall be of greater length the smaller the size of the casing containing the drying means. Long spacer shafts represent a waste of material, a reduction of the useful volume for the cooling fluid and increase the aforementioned problems of positioning of the cartridge inside the collector tube.
  • The purpose of the present invention is that of making a condenser cartridge, in particular of an air-conditioning unit for vehicles that overcomes the quoted drawbacks.
  • Another purpose of the present invention is that of making a cartridge that improves the performance of the unit.
  • Another purpose of the present invention is that of making a cartridge that is particularly simple and functional, with low production and assembly costs.
  • These purpose according to the present invention are accomplished by making a condenser cartridge, in particular of an air-conditioning unit for vehicles as outlined in claim 1.
  • Further characteristics of a cartridge are object of the dependent claims.
  • The characteristics and advantages of a condenser cartridge, in particular of an air-conditioning unit for vehicles according to the present invention shall become clearer from the following description, given as an example and not limiting purposes, referring to the attached schematic drawings in which:
  • figure 1 is a top side view of the cartridge according to the present invention mounted inside a collector tube shown in section;
  • figures 2 and 3 show an enlarged and partially sectioned detail of the cartridge of figure 1;
  • figure 4 shows a further cartridge according to the present invention provided with a permeable bag containing the drying means.
  • With reference to the figures, a condenser cartridge, in particular of an air-conditioning unit for vehicles is shown, wholly indicated with 10.
  • In figures 1 and 4 the cartridge 10 is shown inserted axially in an end of a cylindrical collector tube 11, stably coupled through suitable known supports with an end of a condenser, not shown.
  • The cartridge 10, shown in figure 1, comprises a cylindrical cap 12, which makes the seal inside the collector tube 11, and a casing 13 that contains a drying means.
  • According to what is known, the casing 13 can comprise a rigid containment element provided with a portion equipped with a plurality of holes, or openings 14 for the passage of the cooling fluid through the drying means, as shown in figure 1, or else it can comprise a bag that is permeable to the cooling fluid applied to the filtering element 15 according to that which is depicted in figure 4.
  • The casing 13 also carries, at one of its ends, a filtering element 15 that holds possible impurities contained in the cooling liquid.
  • In the cartridge 10, according to the present invention, the cap 12 and the casing 13 are coupled through a ball-and-socket joint 16.
  • The ball-and-socket joint 16, in the example shown in the figures, comprises a first portion 17, or spherical element, made integrally at one end of the casing 13 and a second portion 18, or matching socket, made integrally on the inner surface of the cap 12.
  • The ball-and-socket joint 16, and in particular the spherical element 17, is made on the casing 13 close to the end carrying the filtering element 15.
  • Between the filtering element 15 and the portion of casing 13 provided with openings 14, as well as the permeable bag, a perimetric 0-ring 23 is arranged that, in the example shown, is formed integrally on the outer wall of the casing 13, but which could also be made integral with the collector tube 11.
  • According to what is shown in figure 1, the cartridge 10 according to the present invention is inserted from the bottom towards the top in the lower end of the collector tube 11. An elastic safety ring 21 is arranged in contact with the outer surface of the cap and in engagement against the inner wall of the collector tube 11 to ensure the seal of the cap 12 in operating conditions.
  • The cap 12, which makes a seal against the inner wall of the tube 11, supports the casing 13 of the cartridge 10 arranged with the filtering element 15 in the lower part of the tube 11.
  • Moreover, with the cartridge 10 mounted, the separator ring 23 is also positioned making a seal against the inner wall of the tube 11 and divides the collector tube in a watertight manner into two separate chambers.
  • Indeed, the cooling fluid coming from the condenser enters through the upper inlet opening 19 into an upper chamber in which the portion of casing 13 provided with openings 14 is immersed. Then the fluid, through the openings 14, reaches the inside of the casing 13 where it meets the drying means contained. The fluid then goes out from the lower part of the casing 13 through the filtering element 15 and fills the lower chamber of the collector tube 11, from which it comes out through a lower outlet opening 20.
  • As exemplified in figure 1, projecting centring elements 22 can also be foreseen on the casing 13 of the cartridge 10, to guide the positioning of the cartridge 10 itself in the collector tube 11.
  • The condenser cartridge, in particular of an air-conditioning unit for vehicles object of the present invention has the advantage, when mounted in the tube, of adapting to it even in the presence of possible size imperfections ensuring a better seal of the separator ring.
  • The cartridge object of the present invention is advantageously used in condenser tubes open at the lower end, in which the filtering part must be arranged close to the lower part of the tube.
  • Moreover, the cartridge according to the present invention can advantageously be made in small sizes.

Claims (9)

  1. Condenser cartridge, in particular of an air-conditioning unit for vehicles, which can be inserted axially in an end of a cylindrical collector tube (11), comprising a cylindrical cap (12), suitable for making the seal inside said collector tube (11), and a casing (13) for a drying means that carries a filtering element (15) at one end, characterized in that said cap (12) and said casing (13) are coupled through a ball-and-socket joint (16).
  2. Cartridge according to claim 1, characterised in that said ball-and-socket joint (16) comprises a first portion (17), or spherical element, made integrally at one end of said casing (13) and a second portion (18), or matching socket, made integrally on the inner surface of said cap (12).
  3. Cartridge according to claim 1, characterised in that said ball-and-socket joint (16) is made on said casing (13) close to said end carrying the filtering element (15).
  4. Cartridge according to claim 1, characterised in that said casing (13) comprises a rigid containment element integral with said filtering element (15) provided with a plurality of holes or openings (14).
  5. Cartridge according to claim 4, characterised in that a portion of said casing (13) provided with openings (14) is separated with respect to said filtering element (15) by a perimetric ring (23).
  6. Cartridge according to claim 1, characterised in that said casing (13) comprises a bag that is permeable to the cooling fluid connected to said filtering element (15).
  7. Cartridge according to claim 6, characterised in that said permeable bag is separated with respect to said filtering element (15) by a perimetric ring (23).
  8. Cartridge according to claims 5 or 7, characterised in that said perimetric ring (23) is formed integrally on the outer wall of said casing (13).
  9. Cartridge according to claim 1, characterised in that said casing (13) carries a plurality of projecting centring elements (22) on an outer part.
EP05075616A 2004-03-17 2005-03-14 Condenser cartridge, in particular for an air-conditioning unit for vehicles Withdrawn EP1580499A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000111U ITMI20040111U1 (en) 2004-03-17 2004-03-17 CARTRIDGE FOR A CONDENSER IN PARTICULAR OF AN AIR CONDITIONING SYSTEM FOR VEHICLES
ITMI20040111U 2004-03-17

Publications (2)

Publication Number Publication Date
EP1580499A2 true EP1580499A2 (en) 2005-09-28
EP1580499A3 EP1580499A3 (en) 2007-03-28

Family

ID=34856905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05075616A Withdrawn EP1580499A3 (en) 2004-03-17 2005-03-14 Condenser cartridge, in particular for an air-conditioning unit for vehicles

Country Status (4)

Country Link
US (1) US20050204770A1 (en)
EP (1) EP1580499A3 (en)
CN (1) CN100501278C (en)
IT (1) ITMI20040111U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1818631A2 (en) * 2006-02-09 2007-08-15 SKG Italia S.p.A. Improved plug for pressure-sealing a condenser of an air conditioning system for vehicles and related condenser
DE102005024158B4 (en) * 2005-05-23 2008-04-10 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for a cooling medium in a cooling medium circuit, in particular for an air conditioning system of a vehicle
DE102005024167B4 (en) * 2005-05-23 2008-05-15 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for a cooling medium in a cooling medium circuit, in particular for an air conditioning system of a vehicle
FR3032267A1 (en) * 2015-01-30 2016-08-05 Valeo Systemes Thermiques ASSEMBLY COMPRISING A BOTTLE FOR A HEAT EXCHANGER, IN PARTICULAR HEAT EXCHANGER FOR A MOTOR VEHICLE, AND A HEAT EXCHANGER CONTAINING SUCH AN ASSEMBLY.

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102538323B (en) * 2012-02-27 2014-04-02 浙江三花汽车零部件有限公司 Air conditioner refrigeration system and liquid reservoir thereof
DE102012220594A1 (en) * 2012-09-21 2014-03-27 Behr Gmbh & Co. Kg capacitor
CN104764260A (en) * 2015-04-22 2015-07-08 重庆超力高科技股份有限公司 Drying bottle with connecting pieces
US11566826B2 (en) * 2019-11-20 2023-01-31 Denso International America, Inc. Modular refrigerant cap

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867670A2 (en) * 1997-03-26 1998-09-30 Behr GmbH & Co. Insert for a receiver section of a condenser
EP1104877A1 (en) * 1999-12-01 2001-06-06 Visteon Global Technologies, Inc. Condenser with integral receiver dryer
EP1202007A1 (en) * 2000-10-25 2002-05-02 Skg Italiana Spa Condenser module and dryer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4599006A (en) * 1979-10-03 1986-07-08 Permawick Bearing Corporation Cartridge bearing assembly
US4474661A (en) * 1983-06-27 1984-10-02 Parker-Hannifin Corporation Filter dryer
KR100730567B1 (en) * 2002-07-09 2007-06-20 한라공조주식회사 Receiver-drier for an air-conditioning system and a method for making it

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867670A2 (en) * 1997-03-26 1998-09-30 Behr GmbH & Co. Insert for a receiver section of a condenser
EP1104877A1 (en) * 1999-12-01 2001-06-06 Visteon Global Technologies, Inc. Condenser with integral receiver dryer
EP1202007A1 (en) * 2000-10-25 2002-05-02 Skg Italiana Spa Condenser module and dryer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005024158B4 (en) * 2005-05-23 2008-04-10 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for a cooling medium in a cooling medium circuit, in particular for an air conditioning system of a vehicle
DE102005024167B4 (en) * 2005-05-23 2008-05-15 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for a cooling medium in a cooling medium circuit, in particular for an air conditioning system of a vehicle
DE102005024158C5 (en) 2005-05-23 2018-12-06 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for a cooling medium in a cooling medium circuit, in particular for an air conditioning system of a vehicle
EP1818631A2 (en) * 2006-02-09 2007-08-15 SKG Italia S.p.A. Improved plug for pressure-sealing a condenser of an air conditioning system for vehicles and related condenser
EP1818631A3 (en) * 2006-02-09 2008-03-12 SKG Italia S.p.A. Improved plug for pressure-sealing a condenser of an air conditioning system for vehicles and related condenser
FR3032267A1 (en) * 2015-01-30 2016-08-05 Valeo Systemes Thermiques ASSEMBLY COMPRISING A BOTTLE FOR A HEAT EXCHANGER, IN PARTICULAR HEAT EXCHANGER FOR A MOTOR VEHICLE, AND A HEAT EXCHANGER CONTAINING SUCH AN ASSEMBLY.

Also Published As

Publication number Publication date
ITMI20040111U1 (en) 2004-06-17
CN100501278C (en) 2009-06-17
US20050204770A1 (en) 2005-09-22
EP1580499A3 (en) 2007-03-28
CN1670453A (en) 2005-09-21

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