EP1287779A2 - Dispositif dans l'entrée d'eau d'un appareil ménager - Google Patents
Dispositif dans l'entrée d'eau d'un appareil ménager Download PDFInfo
- Publication number
- EP1287779A2 EP1287779A2 EP02016678A EP02016678A EP1287779A2 EP 1287779 A2 EP1287779 A2 EP 1287779A2 EP 02016678 A EP02016678 A EP 02016678A EP 02016678 A EP02016678 A EP 02016678A EP 1287779 A2 EP1287779 A2 EP 1287779A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fine distribution
- water
- air
- distribution device
- air bubbles
- 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
Links
Images
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
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
Definitions
- the invention relates to a device in the water inlet Household appliance, especially a dishwasher, with a water return prevention device, and a household appliance with such a device.
- a back suction preventer In a conventional dishwasher, there is water in the inlet a back suction preventer, which is also called Backflow preventer or free flow path called becomes.
- the back suction preventer prevents that possibly contaminated Water from the dishwasher in the pipe system of the domestic water supply runs back.
- the Backflow preventer has an air opening that matches the outside atmosphere communicates. Air bubbles in the water, that flows through the backflow preventer, lead in Area of the back suction preventer from a certain size to cavitation-like noises or bang noises. Air bubbles in the water occur especially with hot water connections and lines with a lot of air in the inlet, so that the resulting noise is subjectively unpleasant be felt. If between the house water connection and an additional water tank e.g.
- a device in the water inlet water-carrying household appliance provided a Water return prevention device and one of the water return prevention device upstream in the direction of flow Device for the fine distribution of air bubbles having.
- a water return prevention device is doing so regularly a facility that a return or Sucking water back from the household appliance to the domestic water supply line prevented.
- the water return prevention device is also used as a backflow preventer or designated free flow path.
- a device for fine distribution of air bubbles is a facility that Air bubbles crushed when flowing through the device or distributed. Air bubbles above a certain size, that flow through the facility become through the facility divided into small and tiny air bubbles in the water flowing through.
- the fine distribution device has a passage opening has the smallest dimension only a fraction of the opening width or opening cross-section the inflow area of the water return prevention device has, form behind the passage opening initially small air bubbles, the others Growth is prevented by the fact that even the little ones Air bubbles are carried away by the flowing water.
- the smallest opening width is preferably the passage opening smaller than 4 mm, or to produce even smaller ones Air bubbles less than 1 mm.
- the fine distribution device does not need the whole Cross-sectional area in the inflow area of the water return prevention device to limit. It is enough if the fine distribution device in an area of the inflow area is arranged, through which the air bubbles are preferred flow concentrated in the incoming water. While maintaining the function of the fine distribution device becomes the flow resistance in the water inlet of the household appliance not significantly increased. Particularly large air bubbles rise within the incoming water due to the Gravity upwards so that e.g. the arrangement of the fine distribution device on an upper edge of an obliquely formed Inflow range is sufficient.
- the fine distribution device is particularly advantageous such in the inflow area of the water return prevention device arranged that the water that the fine spreading device flows around, on the outlet side of the Fine distribution device is passed over, whereby the penetrating, small air bubbles are particularly effective get carried away.
- the so-called Venturi effect exploited the surface tension of the Air bubbles when passing through the fine distribution device counteracts and the air bubbles in front of the fine distribution device through the fine distribution device through sucks.
- the fine distribution device By connecting an air retention device upstream the fine distribution device is prevented from being large Air bubbles or large amounts of air directly at the fine distribution device concern and impair their function.
- the air retention device is activated during the water intake the air flowing in through the flowing water small quantities are delivered to the fine distribution device. Large air bubbles collect in the air retention device, which are irregular due to the domestic water connection in the Water intake or air bubbles that arise from small Air bubbles while the water stops in one of the Water return prevention device upstream water tank (e.g. heat exchanger).
- the larger by flow turbulence Distribute air bubbles into smaller air bubbles before then the smaller air bubbles through the fine distribution device be crushed even further.
- Fig. 1 shows a schematic cross section through a Back-suction preventer 1 and an upstream heat exchanger tank 2 in the inlet area of a dishwasher.
- the back suction preventer 1 is an arched upward arched channel through which the fresh water from a Domestic water supply system to the inside of the dishwasher is directed. It is centered on the lower arch wall an air opening 3 is arranged, which in a known manner Domestic water supply system from the water cycle within the Dishwasher decoupled.
- the device for fine distribution according to the invention of air bubbles does not require the use of a heat exchanger tank 2 ahead.
- An arrangement of the fine distribution device in front of the backflow preventer in one Cable with a conventional cable cross section is also used.
- the fresh water from the house water supply system occurs through an inlet 4 into the heat exchanger tank 2 there deflected several times by deflection webs 5, so that a good mixing of the water inside the heat exchanger tank 2 results, and then flows into the inflow area 6 of the back suction preventer 1.
- the water From the back suction preventer 1 the water enters a channel 7 which is the water a regeneration / dosing unit and a connection channel to the interior of the dishwasher (not shown).
- the overall height of the back suction preventer 1, the heat exchanger tank 2 and the channel 7 and those arranged therein Elements is approximately 1 to 3 cm.
- an air bubble atomizer 10 In the opening or. Inflow area 6 of the back suction preventer 1, an air bubble atomizer 10 is arranged.
- the Bubble atomizer 10 divides air bubbles 11 medium Size above about 1 mm in diameter in small air bubbles 12 with a diameter of less than 1 mm, preferably below 0.5 mm.
- an air collection chamber 14 is formed.
- the Air dissolved or entrained in the fresh water supplied collects within the heat exchanger tank 2 at the Top in the air chamber 14.
- Fig. 2 shows a detailed view of the inflow region 6 of the Back suction preventer 1 adjacent to the heat exchanger tank 2.
- the air bubble atomizer 10 includes a first one Web 20 and a second web 21 which extend in the plane of the drawing are formed and the front side wall of the Back suction preventer 1 or the heat exchanger tank 2 connect to the rear side wall. Between the top Inner wall of the heat exchanger container 2 and the first web 20, a first gap 22 is formed and between the first and second web 20, 21, a second gap 23 is formed. The cross section of the first and second gap 22, 23 decreases in the direction of flow. The smallest gap width is approximately 0.5 mm.
- the air bubbles 11 of medium size in front of the air bubble atomizer 10 by the flow congestion and the flow suction on the outlet side into the column 22, 23 pressed and on the outlet side as air bubbles 12 small size in the main water flow.
- the Main water flow flows on the outlet side of the air atomizer 10 over and distributes the air bubbles 12 spatially.
- Fig. 3 shows a second embodiment in the place of the individual web 13 shown in FIG. 1 several upper webs 31 and a plurality of lower webs 32 together Form bubble labyrinth 30.
- Fig. 1 is in front of the upper web 31 shown on the right Air chamber 14 formed in the larger amounts of air collect.
- By redirecting the flow through the bubble maze 30 becomes a pre-distribution of the air bubbles and crushing the air bubbles in the air / water flow reached through the bubble maze.
- In order to the size of the air bubbles 11 is still medium size further reduced or ensured that no major Air bubbles from the vent chamber 14 to the air atomizer 10 arrive.
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Washing And Drying Of Tableware (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10142885 | 2001-09-03 | ||
| DE10142885 | 2001-09-03 | ||
| DE10146443 | 2001-09-20 | ||
| DE10146443A DE10146443A1 (de) | 2001-09-03 | 2001-09-20 | Vorrichtung im Wasserzulauf eines Haushaltsgerätes |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1287779A2 true EP1287779A2 (fr) | 2003-03-05 |
| EP1287779A3 EP1287779A3 (fr) | 2006-10-18 |
| EP1287779B1 EP1287779B1 (fr) | 2009-09-09 |
Family
ID=26010051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20020016678 Expired - Lifetime EP1287779B1 (fr) | 2001-09-03 | 2002-07-26 | Dispositif dans l'entrée d'eau d'un appareil ménager |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP1287779B1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9445705B2 (en) | 2011-09-22 | 2016-09-20 | Electrolux Home Products, Inc. | Fluid inlet for controlled filling of a dishwasher |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3717168A (en) * | 1971-05-12 | 1973-02-20 | Design & Mfg Corp | Water inlet unit for appliances |
| DE2908824A1 (de) * | 1979-03-07 | 1980-09-18 | Miele & Cie | Rueckflussverhinderer fuer ein haushaltgeraet, wie geschirrspuelmaschine oder waschmaschine |
| GB2155316B (en) * | 1984-03-13 | 1988-06-15 | Balay Sa | Hydraulic feeder having a steam outlet for dishwashers |
-
2002
- 2002-07-26 EP EP20020016678 patent/EP1287779B1/fr not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9445705B2 (en) | 2011-09-22 | 2016-09-20 | Electrolux Home Products, Inc. | Fluid inlet for controlled filling of a dishwasher |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1287779B1 (fr) | 2009-09-09 |
| EP1287779A3 (fr) | 2006-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3317230C2 (fr) | ||
| EP0143944B1 (fr) | Dispositif pour refroidir et granuler de la matière synthétique thermoplastique extrudée | |
| DE69407138T2 (de) | Ofen mit Vorrichtung zur Behandlung von überschüssigem Dampf | |
| DE19505213C1 (de) | Luftzuführeinrichtung | |
| DE3330951A1 (de) | Frischluftzufuehreinrichtung fuer eine heizungs-lueftungs- und/oder klimatisierungseinrichtung | |
| DE2233480A1 (de) | Abscheider fuer die im abluftstrom eines wasserkuehlturms enthaltenen wassertroepfchen | |
| DE2361636A1 (de) | Venturi-vorrichtung | |
| DE2526912A1 (de) | Vorrichtung zur reinigung eines gasstroms | |
| DE2348269C2 (de) | Gasentstaubungsvorrichtung | |
| DE2509630A1 (de) | Filter-sumpfanordnung fuer einen verdunstungswaermetauscher | |
| DE3137503C2 (de) | Entspannungs-Verdampfer für ein geothermisches Kraftwerk | |
| DE3623185C2 (fr) | ||
| DE2045082B2 (de) | Berieselungskoerper fuer luftbefeuchter | |
| DE60316835T2 (de) | Entfernung von verunreinigungen aus einem verunreinigten gas- oder dampfstrom | |
| DE1421310A1 (de) | Nassstaubabscheider | |
| EP1287779A2 (fr) | Dispositif dans l'entrée d'eau d'un appareil ménager | |
| DE2629581A1 (de) | Verfahren und vorrichtung zur dekontaminierung einer mit schadstoffen beladenen fluessigkeit | |
| DE102008008401B4 (de) | Vorrichtung zur Abscheidung von festen oder flüssigen Substanzen aus einem Gasstrom | |
| DE2944081C2 (de) | Vorrichtung zur biologischen Abwasserreinigung | |
| AT396736B (de) | Vorrichtung zum abscheiden von dunst-, fett- und staubpartikeln aus einem luftstrom | |
| DE19923195C1 (de) | Luftansaugvorrichtung | |
| DE10146443A1 (de) | Vorrichtung im Wasserzulauf eines Haushaltsgerätes | |
| EP0148289A1 (fr) | Sous-plafond à filtre pour séparer et déposer des matières en suspension dans de l'air d'échappement ascendant | |
| DE3244168C2 (de) | Dampfverteiler, insbesondere für Luftbefeuchtungsanlagen | |
| DE60035241T2 (de) | Luftwäscher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| 17P | Request for examination filed |
Effective date: 20061006 |
|
| AKX | Designation fees paid |
Designated state(s): DE ES FR GB IT |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR GB IT |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REF | Corresponds to: |
Ref document number: 50213830 Country of ref document: DE Date of ref document: 20091022 Kind code of ref document: P |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20091220 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20100610 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20100726 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090909 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20110331 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110201 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50213830 Country of ref document: DE Effective date: 20110201 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100802 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100726 |