EP0666456B1 - Accumulateur/sécheur pour fluide frigorigène - Google Patents

Accumulateur/sécheur pour fluide frigorigène Download PDF

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Publication number
EP0666456B1
EP0666456B1 EP19940101710 EP94101710A EP0666456B1 EP 0666456 B1 EP0666456 B1 EP 0666456B1 EP 19940101710 EP19940101710 EP 19940101710 EP 94101710 A EP94101710 A EP 94101710A EP 0666456 B1 EP0666456 B1 EP 0666456B1
Authority
EP
European Patent Office
Prior art keywords
inner shell
receiver
drier
header
desiccant
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
EP19940101710
Other languages
German (de)
English (en)
Other versions
EP0666456A1 (fr
Inventor
Wayne Kevin Hutchinson
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.)
Eaton Corp
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Priority to ES94101710T priority Critical patent/ES2133427T3/es
Priority to DE1994618590 priority patent/DE69418590T2/de
Priority to EP19940101710 priority patent/EP0666456B1/fr
Publication of EP0666456A1 publication Critical patent/EP0666456A1/fr
Application granted granted Critical
Publication of EP0666456B1 publication Critical patent/EP0666456B1/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

Definitions

  • the present invention relates to drying, filtering, and collecting liquid refrigerant in the high pressure side of a liquid vapor recirculating refrigeration system.
  • a device is interposed in the refrigerant line between the condenser and the thermal expansion valve or capillary tube for the purpose of removing moisture and foreign matter which could cause freezing and/or blocking of the flow upon expansion through the valve or capillary.
  • receiver/driers for automotive air conditioning systems
  • desiccant beads on the order of 1/16 inch (1.6 mm) diameter in a container such that the refrigerant flows through the desiccant beads into a collecting chamber and then is discharged from the collecting chamber by flow through a standpipe.
  • the construction of the receiver/drier which is typically formed in a cylindrical configuration of metal material has proven to be troublesome.
  • filtering media adjacent the ports in the desiccant container in order to filter all of the liquid refrigerant passing through the desiccant material.
  • US patent 5 038 582 discloses a receiver/drier comprising features (a), (b) and (c) to (e) of claim 1, as well as a closure header with inlet and outlet port.
  • the receiver comprises a desiccant charging portion 6 (inner shell) utilizing a stepped portion in a tank body (outer shell).
  • the stepped portion acts to assuredly support the desiccant charging portion for the purpose of preventing it from being displaced by the pressure of the refrigerant which is introduced through a refrigerant inlet portion.
  • the desiccant charging portion comprises an upper support.
  • the present invention provides a novel and improved construction for a refrigerant receiver/drier having filters therein as defined in claim 1.
  • This construction employs a thin wall container cup for the desiccant beads with flow ports formed as louvered slots in the closed end of the cup in a manner which stiffens the closed end of the cup to resist the pressure forces on the filter material disposed adjacent the openings.
  • the closed end of the cup has a central opening, enabling the cup to be assembled over the standpipe and the desiccant beads loaded into the cup.
  • a cup closure plate having similarly formed louvered slots is assembled over the upper end of the standpipe and into the cup, thus closely containing the desiccant beads therein.
  • the assembly of the standpipe, desiccant, filter, and plate is then assembled onto a header and the sides of the cup are deformed thereover to attach the cup to the header.
  • the outer shell is then received over the assembly thus far formed in the shell, and is sealed and retained on the header by weldment.
  • the invention is illustrated in cross-section taken along the longitudinal axis thereof.
  • the receiver/drier of the present invention is indicated generally at 10 and comprises a header or attachment block 12 which has formed therein an inlet port 14 and an outlet port 16 centrally located in the header, and which has attached thereto, preferably by press-fitting therein, a standpipe 18.
  • the standpipe passes centrally through a generally cup-shaped inner shell 20, which is filled with desiccant material in the form of beads 22 and the shell 20 is closed at its upper end by a cover plate 24 through which the standpipe 18 passes.
  • the bottom or closed end of shell 20 has formed therein a plurality of spaced openings 26 which are preferably formed as louvered slits with the louvers 27 formed integrally in the bottom of the inner shell 20.
  • the closure plate 24 has a plurality of spaced openings 28 formed therein which are also preferably formed as louvered slits by integrally stamped louvers 29.
  • the layer of filter material 30 is disposed adjacent the openings 28 in the cover plate; and, similarly, a layer of filter material 32 is disposed adjacent the openings 26 in the bottom of the inner shell 20.
  • fibrous glass material for the filter layers 30,32; and, the material may be woven or in wool-like arrangement of the fibers.
  • the desiccant beads 22 in the present practice of the invention are beads on the order of 1/16 inch (1.6 mm) and a material described as a molecular sieve and bearing manufacturer's designation XH-7, obtainable from UOP, Incorporated, 2511 Country Club Blvd., North Olmsted, Ohio 47070, has been utilized.
  • the header 12, standpipe 18, desiccant container 20, and cover plate 28 are preferably formed of aluminum material for light weight and ease of fabrication.
  • the lower filter layer 32 is installed in the container cup or inner shell 20, and the standpipe 18 inserted through the central opening therein.
  • the desired amount of desiccant beads 22 is then loaded into the inner shell 20.
  • the upper filter layer 30 is then received over the standpipe and the closure plate 24 is likewise received over the standpipe and inner periphery of the inner shell 20 to retain the filter 30 and desiccant beads 22 therein in a subassembly.
  • the header 12 is formed with a peripheral groove 34 in a reduced diameter portion 36 thereof.
  • the open end of the inner cup or inner shell 20 is received over the lip of groove 34.
  • Portions of the wall of the shell 20 are deformed inwardly as, for example, with a punch to retain the inner shell 20 onto the header 12; and, these deformed portions are denoted by reference numeral 38 in the drawing.
  • the standpipe is then press-fitted into the outlet port 16 in the header 12.
  • outer shell or casing 40 is then received over the diameter 36 of the header and secured thereon.
  • the outer shell 40 is formed of an aluminum alloy similar to that of header 12; and, the outer shell is secured to the header 12 by weldment as indicated by reference numeral 42.
  • the receiver/drier of the present invention is constructed of lightweight material, and has the desiccant beads thereof contained in a cup-shaped inner shell received over the standpipe with a cover plate also received over the standpipe and received in the open end of the cup-shaped shell to retain the desiccant material therein.
  • the closed end of the container cup and the cover plate have spaced flow openings therein which are formed as louvered slits, which stiffen the material thereof against the forces of the fluid pressure resulting from the flow restriction created by the pressure drop across the filter material disposed adjacent the flow openings.
  • the present invention permits the inner shell or cup-shaped material to be assembled as a subassembly over the standpipe in a manner which reduces spillage of the desiccant material and handling problems during assembly.
  • said desiccant comprises according to one embodiment of the invention glass bead material.

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)

Claims (12)

  1. Un accumulateur/sécheur pour réfrigérant comprenant :
    (a) une enveloppe extérieure ayant la forme générale d'une cuvette (40);
    (b) une enveloppe intérieure ayant la forme générale d'une cuvette (20), dans l'extrémité fermée de laquelle sont formées une pluralité d'ouvertures (26) espacées, ladite enveloppe intérieure (20) étant disposée à l'intérieur de ladite enveloppe extérieure (40);
    (c) un collecteur formant fermeture (12) fixé à l'extrémité ouverte de ladite enveloppe extérieure, un orifice d'entrée (14) et un orifice de sortie (16) auquel est fixé une colonne montante (18) étant formés dans ledit collecteur (12), des parties (38) de la paroi de l'enveloppe intérieure (40) étant déformées pour retenir l'enveloppe intérieure (40) sur ledit collecteur formant fermeture (12);
    (d) une matière déshydratante disposée dans ladite enveloppe intérieure (20) ; et
    (e) une plaque de fermeture (24) fixée à l'enveloppe intérieure (20) à l'extrémité ouverte de cette dernière, une pluralité d'ouvertures espacées (28) étant formées dans ladite plaque de fermeture (24), ladite colonne montante (18) s'étendant à travers ladite plaque de fermeture (24), ladite matière déshydratante et ladite extrémité fermée de ladite enveloppe intérieure (20) pour faire communiquer ledit orifice de sortie (16) avec la région intérieure de ladite enveloppe extérieure (40) entre l'extrémité fermée de cette dernière et l'extrémité fermée de ladite enveloppe intérieure.
  2. L'accumulateur/sécheur défini dans la revendication 1, comprenant, en outre, des premiers moyens filtrants (32) disposés adjacents auxdites ouvertures (26) formées dans ladite enveloppe intérieure et des seconds moyens filtrants (30) disposés adjacents auxdites ouvertures (28) formées dans ladite plaque de fermeture (24).
  3. L'accumulateur/sécheur défini dans la revendication 1, dans lequel ledit collecteur formant fermeture (12), ladite plaque de fermeture (24) et ladite enveloppe intérieure (20) contenant ladite matières déshydratante sont assemblés sur ladite colonne montante (18) et fixés audit collecteur formant fermeture pour former un sous-ensemble.
  4. L'accumulateur/sécheur défini dans la revendication 2, dans lequel chacun desdits premiers et seconds moyens filtrants (32, 30) comprend une couche de matière fibreuse.
  5. L'accumulateur/sécheur défini dans l'une quelconque des revendications 1 à 4, dans lequel lesdites ouvertures espacées (26; 28) formées dans ladite enveloppe intérieure (20) et dans ladite plaque de fermeture (24) sont munies d'ouïes.
  6. L'accumulateur/sécheur défini dans la revendication 1, dans lequel ledit collecteur (12) a une partie de plus petit diamètre et ladite enveloppe (20) intérieure est montée sur cette partie et y est fixée par déformation localisée de ladite enveloppe.
  7. L'accumulateur/sécheur défini dans la revendication 1, dans lequel ladite enveloppe intérieure (20), la plaque de fermeture (24) et la colonne montante (18) sont formées en une matière à base d'aluminium.
  8. L'accumulateur/sécheur défini dans la revendication 1, dans lequel ladite matière déshydratante est constituée par une matière en perles de verre (22).
  9. L'accumulateur/sécheur défini dans la revendication 1, dans lequel lesdites ouvertures espacées (26) formées dans ladite enveloppe intérieure (20) sont munies d'ouïes de manière à diriger l'écoulement à travers elles contre la surface intérieure de ladite enveloppe extérieure.
  10. L'accumulateur/sécheur défini dans la revendication 1, dans lequel ladite matière déshydratante comprend une matière en perles.
  11. L'accumulateur/sécheur défini dans la revendication 4, dans lequel ladite matière filtrante comprend une matière en fibres de verre.
  12. L'accumulateur/sécheur défini dans la revendication 1, dans lequel ladite colonne montante (18) est montée à la presse dans ledit collecteur (12) formant fermeture.
EP19940101710 1994-02-04 1994-02-04 Accumulateur/sécheur pour fluide frigorigène Expired - Lifetime EP0666456B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES94101710T ES2133427T3 (es) 1994-02-04 1994-02-04 Receptor/secador de refrigerante.
DE1994618590 DE69418590T2 (de) 1994-02-04 1994-02-04 Sammler/Trockner für Kältemittel
EP19940101710 EP0666456B1 (fr) 1994-02-04 1994-02-04 Accumulateur/sécheur pour fluide frigorigène

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19940101710 EP0666456B1 (fr) 1994-02-04 1994-02-04 Accumulateur/sécheur pour fluide frigorigène

Publications (2)

Publication Number Publication Date
EP0666456A1 EP0666456A1 (fr) 1995-08-09
EP0666456B1 true EP0666456B1 (fr) 1999-05-19

Family

ID=8215655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940101710 Expired - Lifetime EP0666456B1 (fr) 1994-02-04 1994-02-04 Accumulateur/sécheur pour fluide frigorigène

Country Status (3)

Country Link
EP (1) EP0666456B1 (fr)
DE (1) DE69418590T2 (fr)
ES (1) ES2133427T3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19547744A1 (de) * 1995-12-20 1997-06-26 Bosch Siemens Hausgeraete Kältegerät
US6191165B1 (en) 1996-05-31 2001-02-20 Allelix Neuroscience Inc. Pharmaceutical for treatment of neurological and neuropsychiatric disorders
US6742355B2 (en) * 2001-12-28 2004-06-01 Calsonic Kansei Corporation Receiver-drier for use in an air conditioning system
DE102004040880B4 (de) * 2004-08-24 2008-03-27 Jahn Gmbh Umform- Und Zerspanungstechnik Filtriervorrichtung für einen Kühlmedienkreislauf, insbesondere für eine PKW-Klimaanlage
US7571622B2 (en) * 2004-09-13 2009-08-11 Carrier Corporation Refrigerant accumulator
DE102006051687A1 (de) * 2006-10-30 2008-05-08 Visteon Global Technologies Inc., Van Buren Mechanische Verbindung eines Wärmeübertragerrohrs
CN201852383U (zh) 2010-11-17 2011-06-01 浙江三花汽车控制系统有限公司 一种热交换器及其贮液器
DE102015110574B4 (de) 2015-07-01 2018-12-13 Halla Visteon Climate Control Corporation Vorrichtung zum Abscheiden und Sammeln flüssigen Kältemittels eines Kältemittelkreislaufs
CN113069898B (zh) * 2021-05-06 2022-10-14 四川丹甫环境科技有限公司 一种压缩空气干燥系统及其干燥方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2225990A (en) * 1937-12-22 1940-12-24 Guy J Henry Dehydrator
FR1012074A (fr) * 1949-05-30 1952-07-03 Perfectionnements aux dispositifs utilisés pour le traitement des fluides en circulation
US3080977A (en) * 1960-05-06 1963-03-12 Henry Valve Co Drier fitting and assembly
US3545227A (en) * 1969-01-06 1970-12-08 Darwin R Grahl Receiver-dryer for refrigeration systems
DE2854710A1 (de) * 1978-12-18 1980-07-03 Bbc Brown Boveri & Cie Trockenpatrone
US4331001A (en) * 1981-05-11 1982-05-25 General Motors Corporation Accumulator-dehydrator assembly for an air conditioning system
US4707999A (en) * 1985-02-25 1987-11-24 Nippondenso Co., Ltd. Receiver for refrigerant apparatus
US4811571A (en) * 1988-03-28 1989-03-14 Thermo King Corporation Refrigerant drier
JPH0264855U (fr) * 1988-10-31 1990-05-16
JPH0648283Y2 (ja) * 1989-03-13 1994-12-12 カルソニック株式会社 リキッドタンク
US5289697A (en) * 1992-10-28 1994-03-01 Eaton Corporation Refrigerant receiver/drier

Also Published As

Publication number Publication date
DE69418590D1 (de) 1999-06-24
ES2133427T3 (es) 1999-09-16
EP0666456A1 (fr) 1995-08-09
DE69418590T2 (de) 1999-12-16

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