EP0520898B1 - Geschirrspülmaschine mit Luftaustrittsvorrichtung - Google Patents

Geschirrspülmaschine mit Luftaustrittsvorrichtung Download PDF

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Publication number
EP0520898B1
EP0520898B1 EP19920401801 EP92401801A EP0520898B1 EP 0520898 B1 EP0520898 B1 EP 0520898B1 EP 19920401801 EP19920401801 EP 19920401801 EP 92401801 A EP92401801 A EP 92401801A EP 0520898 B1 EP0520898 B1 EP 0520898B1
Authority
EP
European Patent Office
Prior art keywords
vessel
dishwasher
venting device
air
outlet channel
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
EP19920401801
Other languages
English (en)
French (fr)
Other versions
EP0520898A1 (de
Inventor
Camille Barbier
Benoit Gailledrat
Bernard Leclercq
Hélène Leroy
Jean Tenailleau
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.)
Esswein SA
Original Assignee
Esswein SA
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Filing date
Publication date
Application filed by Esswein SA filed Critical Esswein SA
Publication of EP0520898A1 publication Critical patent/EP0520898A1/de
Application granted granted Critical
Publication of EP0520898B1 publication Critical patent/EP0520898B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/488—Connections of the tub with the ambient air, e.g. air intake or venting arrangements

Definitions

  • the present invention relates to a dishwasher provided with a venting device.
  • this opening or this venting hole lets out the sounds of water jets or liquid from spinning reels, liquid shocks on the dishes, liquid fallout on the bottom of tank ... i.e. all airborne noise emitted inside the tank. For this reason, a large number of known dishwashers have an acoustic weakness and insufficient durability.
  • Document CH-A-472 208 discloses a dishwasher with a two-way venting device opening onto the front face of its door, which has drawbacks for the user.
  • the present invention aiming to avoid these drawbacks, makes it possible to produce a solid, silent dishwasher provided with an air venting device which practically does not reject moisture or vapor from the environment. washing liquid and operating noises.
  • a dishwasher provided in a wall of the tank with a venting device with two parallel outlet channels is characterized in that the venting device comprises a channel slow outlet with high pressure drop for permanently open fluid flow (air and liquid vapor), and a fast outlet channel with low pressure drop for normally closed fluid flow, which can be opened by the action of a predetermined thrust of the air leaving the tank, these two channels opening into the space between the tank and the dishwasher body .
  • a dishwasher 1 according to an exemplary embodiment of the invention, illustrated in FIG. 1, comprises a tank 2 and a body 3 which includes a front door 4, a control panel 6 and a top wall constituted by a plane work 7.
  • a lower dish basket 10 In the tank 2 with front opening are mounted a lower dish basket 10, an upper dish basket 11, a lower watering reel 12 and an upper watering reel 13.
  • an air vent device 17 which is in communication with the interior of the tank 2, through a vent opening 20 formed in the wall of this tank 2.
  • a dishwasher comprises a venting device comprising two parallel outlet channels, a slow outlet channel or outlet with high pressure drop for flow of fluid (air and liquid vapor) permanently. open and a rapid outlet or outlet with low pressure drop for fluid flow normally closed but capable of being opened by the action of a predetermined thrust of air and liquid vapor leaving the tank of this dishwasher.
  • the slow, permanently open exit path is provided, on its way, with a device for condensing moisture and liquid vapor and / or for damping noise or sound waves.
  • the rapid exit path is normally closed by a pivoting flap which is capable of being opened by the action of a predetermined thrust of the air and of the vapor of liquid leaving the tank of the dishwasher.
  • the pivoting shutter closing the rapid exit path is constantly returned to its closed position either by its own weight or by an elastic device.
  • the position of the pivot axis of the flap and the movement of this flap are predetermined so that in normal heating progress of the liquid in the tank, the gas overpressure generated is evacuated only by the slow outlet channel and that in the event of abnormal gas overpressure, most of the gases (air and vapor of liquid) in overpressure are evacuated by the rapid outlet channel with the least pressure drop when they flow.
  • there is a pre-established gas pressure threshold for lifting the shutter which is higher than that required to close it.
  • the dishwasher 1 comprises a venting device 17 comprising for the flow of air and liquid vapor and the progression of the sound waves exiting from the tank 2, two parallel outlet channels 22, 23 opening into the space 15 available between the tank 2 and the bodywork 3, and a channel common inlet 25 connected to the venting opening 20 of this tank 2.
  • the venting device has two separate inlet channels connected by one of their ends to corresponding venting openings by two parallel outlet channels, one slow exit lane and one fast exit lane.
  • the rapid exit channel 22 is closed by a pivoting flap 27 which is constantly returned to its closed position (FIG. 2) and able to be opened by the action of a predetermined thrust of air and liquid vapor from the inside to the outside ( Figure 3) corresponding to a pre-established threshold for lifting gas pressure from this flap which is reached or exceeded inside the tank.
  • the pivoting flap 27 is constantly returned to its closed position by its own weight.
  • the pivoting flap 27 is provided with an elastic device of a known type such as a spring, a torsion bar, a rubber mechanism which returns it to its closed position.
  • the slow exit path 23 comprises on its path a device for damping noise or sound waves and / or condensing moisture and liquid vapor 28, constituted for example by a block of synthetic foam with open cells or intertwined synthetic fibers or equivalent known material.
  • the venting device 17 can comprise, in the common channel 25, flow guides, not shown, for air and liquid vapor, upstream from the quick outlet 22 and slow 23 outlet channels.
  • the volume of air enclosed in the tank 2 expands.
  • the volume of expanding air tends to act on the mass of liquid in this tank 2, to cause it to overflow by the opening thereof and make it leak at the lower part, in particular of the door seal 4.
  • the expanding air and the vapor of the heated washing liquid which gradually escape from the tank 2 through the vent opening 20 enter the vent device 17 , take the slow exit path 23, since the rapid exit path 22 is closed by the flap 22, and finally pass through the device for condensing moisture and liquid vapor and / or damping noise 28 constituted by a block of synthetic foam which retains the humidity of the air and the vapor of liquid and lets practically pass only the desaturated air.
  • the noises or sound waves generated by the jets of water or liquid from the spinning reels, by the shocks of liquid on the dishes, by the fall of liquid on the bottom of the tank 2 and all other aerial noises inside this tank 2, are damped, smothered by the block of synthetic foam constituting the device for condensing moisture and liquid vapor and / or damping noise 28 and isolated from the outside by the flap 27 then closed.
  • the dishwasher 1 is silent in its operation and only lets out into the ambient environment the desaturated air which is practically harmless to the body 3 and the other mechanical and electrical organs and accessories of the appliance.
  • the venting device 17 is shown attached to a liquid distributor 35 of a known type which distributes liquid supplying different parts of the dishwasher 1.
  • This known liquid distributor 35 which is not part of the present invention is not described in detail.
  • the venting device 17 can also be a device independent of a liquid distributor 35 or another member of the dishwasher 1.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Claims (9)

  1. Geschirrspülmaschine, die in einer Wand der Wanne mit einer Entlüftungsvorrichtung mit zwei parallelen Ausgangswegen versehen ist, dadurch gekennzeichnet, daß die Entlüftungsvorrichtung (17) einen permanent geöffneten trägen Ausgangsweg (23) mit starkem Druckverlust und einen normalerweise geschlossenen flinken Ausgangsweg (22) mit geringem Druckverlust aufweist, der durch die Wirkung eines vorbestimmten Drucks der Luft und des Flüssigkeitsdampfs geöffnet werden kann, die aus der Wanne (2) austreten, wobei diese beiden Wege in den zwischen der Wanne (2) und der Verkleidung (3) der Geschirrspülmaschine enthaltenen Raum münden.
  2. Geschirrspülmaschine nach Anspruch 1, dadurch gekennzeichnet, daß in der Entlüftungsvorrichtung (17) der permanent geöffnete träge Ausgangsweg (23) in seinem Verlauf mit einer Vorrichtung (28) zum Kondensieren von Feuchtigkeit und Flüssigkeitsdampf und/oder zum Dämpfen von Geräuschen oder Schallwellen versehen ist.
  3. Geschirrspülmaschine nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß in der Entlüftungsvorrichtung (17) der flinke Ausgangsweg (22) normalerweise durch eine Schwenkklappe (27) geschlossen ist, die durch die Wirkung eines vorbestimmten Drucks der Luft und des Flüssigkeitsdampfs geöffnet werden kann, die aus der Wanne (2) der Geschirrspülmaschine austreten, wobei der Druck einer vorbestimmten Schwelle eines Gasdrucks zum Anheben dieser Klappe (27) entspricht, die im Inneren der Wanne (2) erreicht oder überschritten wird.
  4. Geschirrspülmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Entlüftungsvorrichtung (17) in dem Abschnitt, der stromaufwärts ihrer parallelen flinken und trägen Ausgangswege (22, 23) liegt, Strömungsführungen für die Luft und den Flüssigkeitsdampf aufweist.
  5. Geschirrspülmaschine nach Anspruch 3, dadurch gekennzeichnet, daß in der Entlüftungsvorrichtung (17) die den flinken Ausgangsweg (22) verschließende Schwenkklappe (27) permanent durch ihr Eigengewicht in ihre Schließstellung beaufschlagt wird.
  6. Geschirrspülmaschine nach Anspruch 3, dadurch gekennzeichnet, daß in der Entlüftungsvorrichtung (17) die den flinken Ausgangsweg (22) verschließende Schwenkklappe (27) permanent durch eine elastische Vorrichtung in ihre Schließstellung beaufschlagt wird.
  7. Geschirrspülmaschine nach Anspruch 2, dadurch gekennzeichnet, daß in der Entlüftungsvorrichtung (17) der träge Ausgangsweg (23) in seinem Verlauf eine Vorrichtung (28) zum Kondensieren von Feuchtigkeit und Flüssigkeitsdampf und/oder zum Dämpfen von Geräuschen oder Schallwellen aufweist, die durch einen Block aus synthetischem Schaum mit offenen Zellen oder aus miteinander verwobenen Synthetikfasern gebildet ist.
  8. Geschirrspülmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Entlüftungsvorrichtung (17) für das Strömen der Luft und des Flüssigkeitsdampfs und für das Ausbreiten der Geräusche oder der Schallwellen, die aus der Wanne (2) austreten, zwei parallele Ausgangswege (22, 23) aufweist, die in einen freien Raum (15) zwischen der Wanne (2) und der Verkleidung (3) münden, und einen gemeinsamen Eingangsweg (25), der mit einer Öffnung (20) zum Entlüften der Wanne (2) der Geschirrspülmaschine verbunden ist.
  9. Geschirrspülmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Entlüftungsvorrichtung (17) für das Strömen der Luft und des Flüssigkeitsdampfs und für das Ausbreiten der Geräusche oder der Schallwellen, die aus der Wanne (2) austretend, zwei parallele Ausgangswege aufweist, die in einen freien Raum (15) zwischen der Wanne (2) und der Verkleidung (3) münden, und zwei getrennte Eingangswege, die mit einem ihrer Enden mit entsprechenden Öffnungen zum Entlüften der Wanne (2) verbunden sind und die an ihrem anderen Ende durch zwei parallele Ausgangswege fortgesetzt sind, nämlich einen trägen Ausgangsweg (23) und einen flinken Ausgangsweg (22).
EP19920401801 1991-06-27 1992-06-25 Geschirrspülmaschine mit Luftaustrittsvorrichtung Expired - Lifetime EP0520898B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9108008 1991-06-27
FR9108008A FR2678155B1 (fr) 1991-06-27 1991-06-27 Lave-vaisselle muni d'un dispositif de mise a l'air libre.

Publications (2)

Publication Number Publication Date
EP0520898A1 EP0520898A1 (de) 1992-12-30
EP0520898B1 true EP0520898B1 (de) 1996-12-18

Family

ID=9414416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920401801 Expired - Lifetime EP0520898B1 (de) 1991-06-27 1992-06-25 Geschirrspülmaschine mit Luftaustrittsvorrichtung

Country Status (4)

Country Link
EP (1) EP0520898B1 (de)
DE (1) DE69215979T2 (de)
ES (1) ES2097893T3 (de)
FR (1) FR2678155B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1292286B1 (it) * 1997-04-24 1999-01-29 Merloni Elettrodomestici Spa Macchina lavastoviglie con dispositivo di dosaggio di liquido migliorato.
FR2924592B1 (fr) * 2007-12-10 2012-07-13 Fagorbrandt Sas Machine a laver et a secher la vaisselle comprenant un dispositif de condensation et procede associe
CN112006625A (zh) * 2020-07-30 2020-12-01 广东格兰仕集团有限公司 洗碗机半自动开关门装置及洗碗机的快速干燥控制方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170743A (en) * 1963-04-18 1965-02-23 Gen Electric Domestic appliance
US3387388A (en) * 1965-12-17 1968-06-11 Westinghouse Electric Corp Single vent system for dishwasher
DE6602662U (de) * 1967-03-01 1969-06-12 Bosch Hausgeraete Gmbh Geschirrspuelmaschine
CH472208A (de) * 1967-09-01 1969-05-15 Bosch Hausgeraete Gmbh Geschirrspülmaschine mit Entlüftungsöffnung

Also Published As

Publication number Publication date
DE69215979D1 (de) 1997-01-30
FR2678155B1 (fr) 1993-09-03
ES2097893T3 (es) 1997-04-16
FR2678155A1 (fr) 1992-12-31
DE69215979T2 (de) 1997-04-30
EP0520898A1 (de) 1992-12-30

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