EP1559971B1 - Vanne d'équilibrage pour congélateurs - Google Patents

Vanne d'équilibrage pour congélateurs Download PDF

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Publication number
EP1559971B1
EP1559971B1 EP05100212A EP05100212A EP1559971B1 EP 1559971 B1 EP1559971 B1 EP 1559971B1 EP 05100212 A EP05100212 A EP 05100212A EP 05100212 A EP05100212 A EP 05100212A EP 1559971 B1 EP1559971 B1 EP 1559971B1
Authority
EP
European Patent Office
Prior art keywords
freezer
tubular body
refrigerator
blade
pressure
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 - Fee Related
Application number
EP05100212A
Other languages
German (de)
English (en)
Other versions
EP1559971A1 (fr
Inventor
Edoardo Oldani
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.)
Whirlpool Corp
Original Assignee
Whirlpool 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 Whirlpool Corp filed Critical Whirlpool Corp
Priority to PL05100212T priority Critical patent/PL1559971T3/pl
Publication of EP1559971A1 publication Critical patent/EP1559971A1/fr
Application granted granted Critical
Publication of EP1559971B1 publication Critical patent/EP1559971B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/047—Pressure equalising devices

Definitions

  • the present invention relates to a compensator valve for freezers or refrigerators, to compensate the pressure difference between the external environment and the preservation compartment of the freezer or refrigerator.
  • a known solution described in Japanese Patent Application No. 04146344 filed on 12/201792 and published on 22/11/93 comprises a conduit connecting the preservation compartment to the external environment.
  • the conduit is positioned within the door and contains a valve linked to the (rotatable) handle which firstly opens the valve and then, on termination of its travel, opens the door.
  • EP 0 030 046 discloses a refrigerator according to the preamble of appended claim 1.
  • the main object of the present invention is to provide a compensator valve which can be considered automatic in the sense of not comprising any linkages and not depending on the opening of the door.
  • the reference numeral 1 indicates overall a freezer which in the illustrated example is specifically of front-opening type.
  • the freezer presents the conventional preservation compartment 2 defined by conventional heat insulated walls, of which the rear wall 3 is shown enlarged in Figure 1, it being that wall in which the compensator valve 4 of the present invention is preferably located.
  • the valve 4 comprises a tubular body 5 made of preferably rigid engineering polymer, for example ABS, which passes from one side to the other of the rear wall 3 and is incorporated into this wall.
  • One of the ends of said body comprises an end wall 6 provided with a series of more or less minuscule apertures 7 which connect the interior of the tubular body 5 to the preservation compartment 2.
  • an element 8 made of elastic material, for example natural or synthetic rubber, thermoplastic elastomers or the like.
  • the elastic element 8 presents an annular groove 9 and a cylindrical central part 10 penetrating into the tubular body 5.
  • the elastic element 8 presents a conventional conical sealing edge 11 which, when in use, rests and presses against the outer side of the rear wall 3.
  • the elastic element 8 presents at the end or base of its cylindrical central part 10 a thin blade-like valving element in the form of a circular tongue 12 connected along a small peripheral region, at 13 in the drawing, to said cylindrical central part 10, whereas its remaining periphery rests, when in the configuration prior to its mounting, on the inner (end) contour 10A of the cylindrical part 10.
  • two stops 14 in the form of two ribs shaped as a circular arc (less than a semicircle) which emerge from the inner wall of the tubular body 5 and are contained within a plane Z forming a given angle ⁇ (for example of about 100°) with the axis of the tubular body 5.
  • the tongue 12 rests when in its operative state against the two circular arc-shaped stops 14 of the tubular body 5 to completely close the passage cross-section of the tubular body 5.
  • the circular tongue 12 has merely to be pushed with a force F to cause it to pass, by virtue of its deformability, beyond the two stops 14 so that it abuts against them.
  • valve unit described and represented in detail in Figure 2.
  • the unit can be located in the roof or in the side walls of the compartment 2, or even in the relative door.
  • the freezer can also be of chest type.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Safety Valves (AREA)

Claims (3)

  1. Congélateur ou réfrigérateur avec une vanne d'équilibrage de pression (5, 10) qui raccorde le compartiment de conservation de congélateur à l'environnement externe, ladite vanne étant formée à partir d'un élément de vanne en forme d'aube (12) soumis d'un côté à la pression dans le compartiment de conservation (2) et de l'autre côté à la pression de l'environnement externe, ledit élément de vanne en forme d'aube contrôlant la voie de passage d'intercommunication (5, 10) à l'intérieur de laquelle il est interposé, afin de réduire au moins la différence de pression, la voie de passage comprenant un corps tubulaire (5) passant à travers une paroi (3) ou porte du congélateur ou réfrigérateur et communiquant avec le compartiment de conservation (2) via une paroi d'extrémité rigide (6) prévue avec au moins une ouverture (7) caractérisée en ce que l'élément de vanne en forme d'aube (12) est raccordé de manière flexible à un élément élastique (8) couplé au corps tubulaire (5) sur l'extrémité d'environnement externe.
  2. Congélateur ou réfrigérateur selon le revendication 1, dans lequel l'élément de vanne en forme d'aube est une languette plate (12) faisant partie de l'élément élastique (8) et agencé pour intercepter des butées (14) se présentant sous la forme de nervures en forme d'arc circulaire solidaires de la paroi interne du corps tubulaire (5).
  3. Congélateur ou réfrigérateur selon la revendication 2, dans lequel lesdites butées (14) présentent une inclinaison prédéterminée par rapport à un plan perpendiculaire au corps tubulaire (5).
EP05100212A 2004-01-28 2005-01-14 Vanne d'équilibrage pour congélateurs Expired - Fee Related EP1559971B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05100212T PL1559971T3 (pl) 2004-01-28 2005-01-14 Zawór kompensacyjny do zamrażarek

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000115A ITMI20040115A1 (it) 2004-01-28 2004-01-28 Valvola compensatrice per congelatori
ITMI20040115 2004-06-09

Publications (2)

Publication Number Publication Date
EP1559971A1 EP1559971A1 (fr) 2005-08-03
EP1559971B1 true EP1559971B1 (fr) 2007-08-29

Family

ID=34640374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05100212A Expired - Fee Related EP1559971B1 (fr) 2004-01-28 2005-01-14 Vanne d'équilibrage pour congélateurs

Country Status (5)

Country Link
EP (1) EP1559971B1 (fr)
DE (1) DE602005002151T2 (fr)
ES (1) ES2292052T3 (fr)
IT (1) ITMI20040115A1 (fr)
PL (1) PL1559971T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006005549U1 (de) * 2006-04-05 2006-06-08 BSH Bosch und Siemens Hausgeräte GmbH Gerätegehäuse und Druckausgleichsventil dafür
DE102007021600A1 (de) * 2007-05-08 2008-11-13 BSH Bosch und Siemens Hausgeräte GmbH Gehäuse für ein Kältegerät
DE102009003261A1 (de) * 2009-05-20 2010-11-25 BSH Bosch und Siemens Hausgeräte GmbH Kältegerätegehäuse mit Druckausgleichsdurchgang
DE102011014847A1 (de) * 2011-03-23 2012-09-27 Liebherr-Hausgeräte Ochsenhausen GmbH Druckausgleichsventil

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680329A (en) * 1971-02-18 1972-08-01 Emhart Corp Pressure equalizing valve
IT1126138B (it) * 1979-12-04 1986-05-14 Silvana Maccari Valvola compensatrice di pressione particolarmente per celle isotermiche calde o fredde
DE3151940A1 (de) * 1981-12-30 1983-07-07 G + H Montage Gmbh, 6700 Ludwigshafen Vorrichtung zum ausgleich von druckunterschieden zwischen einem temperaturgeregelten raum und der umgebenden atmosphaere
JPH0112150Y2 (fr) * 1985-11-06 1989-04-10

Also Published As

Publication number Publication date
DE602005002151T2 (de) 2008-05-21
PL1559971T3 (pl) 2008-01-31
ITMI20040115A1 (it) 2004-04-28
DE602005002151D1 (de) 2007-10-11
EP1559971A1 (fr) 2005-08-03
ES2292052T3 (es) 2008-03-01

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