EP0080948B1 - Geräuscharme Geschirrspülmaschine mit beschränktem Wasserverbrauch - Google Patents
Geräuscharme Geschirrspülmaschine mit beschränktem Wasserverbrauch Download PDFInfo
- Publication number
- EP0080948B1 EP0080948B1 EP82402158A EP82402158A EP0080948B1 EP 0080948 B1 EP0080948 B1 EP 0080948B1 EP 82402158 A EP82402158 A EP 82402158A EP 82402158 A EP82402158 A EP 82402158A EP 0080948 B1 EP0080948 B1 EP 0080948B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- water
- cycling
- dish
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 49
- 230000001351 cycling effect Effects 0.000 claims description 30
- 239000000203 mixture Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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
- A47L15/4244—Water-level measuring or regulating arrangements
-
- 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
- A47L15/4209—Insulation arrangements, e.g. for sound damping or heat insulation
-
- 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
- A47L15/50—Racks ; Baskets
- A47L15/507—Arrangements for extracting racks, e.g. roller supports
Definitions
- the invention relates to a dishwasher.
- a dishwasher usually includes a cycling pump that draws water from a tank to spray it onto the dishes to be cleaned. After this projection the water falls back into the tank and is again sucked up by the pump through a filter. There is also a drain pump to empty the tank at the end of the wash.
- This pump which rotates during this filling, then sucks in a mixture of air and water and the pressure in the pump body is relatively low. This pressure rises suddenly when water enters said conduit, the pump then sucking more air but only water. This sudden increase in pressure is used to interrupt the filling of water.
- the dishwasher according to the invention which is of the same type as that of US-A-3,415,261, does not have this drawback.
- the cycling pump comprises, above the blades intended for cycling, auxiliary blades in the vicinity of the duct which suck in air during filling with water so that the pump mixes practically only air during this filling, these auxiliary vanes also making it possible to deactivate the cycling pump during emptying, and in that the body of the cycling pump is such that, when filling with water, the latter cannot enter this body only by its lower part.
- the vertical duct, or chimney is coaxial with the wheel of the cycling pump.
- the dishwasher comprises at its base a tank or tank 10 in the bottom of which is disposed the drain pump 12 driven by the shaft 13 of an electric motor 14 installed under the bottom of the tank 10.
- This shaft 13 is therefore vertical and extends above the drain pump 12 to drive the cycling pump 15, the purpose of which is to draw the water 11 in order to spray it under pressure towards baskets (not shown) containing the dishes to be cleaned.
- the body 16 of the cycling pump 15 is connected to a first pipe 17 opening into a rotating reel 18 projecting the water onto the dishes.
- the body of the cycling pump is also connected to another pipe 19 opening into another reel (not shown) located in the upper position in the frame of the dishwasher.
- the water which has been projected onto the dishes falls back into the tank 10 and is sucked in again by the pump 15 after passing through a filter 40.
- the pump 15 comprises a impeller driven by the shaft 13.
- This impeller has a flange 20 (FIG. 2) from the lower face of which protruding vanes 21 intended to ensure the actual cycling and from the upper face of which are protruding other vanes 23 of height slightly lower than that of the vanes 21 and whose role is to deactivate the pump during emptying in order to avoid annoying noises and to prevent priming during filling.
- the vanes 21 and 23 do not have a radial position; they occupy a certain angular sector.
- Each blade 21 has a peripheral end 21. and an internal end 21 b ; the angular sector is traversed in the direction of clockwise of 21a to 21b.
- each blade 23 has a peripheral end 23, and an internal end 23 b .
- the angular sector is traversed in an anti-clockwise direction from 23. to 23 b .
- the orientation of the blades 23 is in the opposite direction to the orientation of the blades 21.
- the body 25 of the drain pump 12 is connected to the evacuation pipe 26 by means of a non-return valve 27 preventing the suction, by the pump 12, of liquid in the pipe 26.
- the suction end 28 of the cycling pump 15 is at the base of the body 16 of this pump.
- the body 16 of the cycling pump is extended upwards by a duct or chimney 30 whose axis coincides with that of the shaft 13 and. so with that of the wheels of pumps 12 and 15.
- the body of the cycling pump 15 is in relation to a pressure switch 31a which thus detects the water pressure produced by this pump.
- the pressure switch 31a controls a solenoid valve 32 which is open when the tank 10 is to be filled with water.
- This pressure switch is such that as long as the water pressure it detects is below a PN value ( Figure 3) the solenoid valve 32 remains open while this solenoid valve is closed when the pressure has reached this value p N .
- this cycling pump can hardly be started as long as the upper end 31 of the chimney 30 is in the air.
- the water pressure delivered by this pump is therefore relatively low. Its value is noted p 1 in FIG. 3. Although this value does not allow jets of water having the pressure necessary to carry out the washing, however, with this pressure, the pump produces small jets which spray the dishes. These small water jets allow, when the dishwasher is supplied directly with hot water, progressive heating of the dishes and, after washing in hot water, progressive cooling before rinsing in cold water.
- the pump 15 "does not start until the free surface of the filling water has reached the end 31 and thus enters the body 16 through the chimney 30.
- the outlet pressure of the pump detected by the pressure switch 31a , then rises sharply and reaches the value p N.
- the solenoid valve 32 is then closed to stop filling.
- the pressure p has been plotted on the ordinate and the quantity q of water introduced into the tank on the abscissa.
- the quantity q 1 corresponds to the moment when the water begins to enter the chimney 30, the free surface having reaches end 31.
- the pump Once the pump has been primed, it sucks up a greater quantity of water than before it was primed and, consequently, the free surface of the water drops sharply below the level of the end 31. This is however not bothersome because it has been found that the pump does not prime.
- the solenoid valve 32 is closed as soon as the pressure detected by the pressure switch 31 reaches the value PN, the quantity of water introduced is the quantity q l .
- a control means is provided to keep the solenoid valve 32 open for a determined time after detection of the priming of the pump. Under these conditions the level of the free surface of the water may, when washing the dishes, be above the level of the end 31.
- the operation is not noisy because the pump 15 mainly mixes air. It has in fact been found that the pump is noisy when it sucks in a mixture of water and air. As shown in Figure 3, the pump hardly ever works with such a mixture of air and water because the transition between the defused state and the primed state is sudden; this transition is represented by a line segment 35 parallel to the ordinate axis P.
Landscapes
- Washing And Drying Of Tableware (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Detergent Compositions (AREA)
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8122587A FR2517194B1 (fr) | 1981-12-02 | 1981-12-02 | Lave-vaisselle utilisant une quantite d'eau limitee |
FR8122587 | 1981-12-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0080948A1 EP0080948A1 (de) | 1983-06-08 |
EP0080948B1 true EP0080948B1 (de) | 1986-11-12 |
Family
ID=9264595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82402158A Expired EP0080948B1 (de) | 1981-12-02 | 1982-11-26 | Geräuscharme Geschirrspülmaschine mit beschränktem Wasserverbrauch |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0080948B1 (de) |
AU (1) | AU561252B2 (de) |
DE (1) | DE3274183D1 (de) |
FI (1) | FI74604C (de) |
FR (1) | FR2517194B1 (de) |
GR (1) | GR77111B (de) |
NO (1) | NO155374C (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11284773B2 (en) | 2020-01-31 | 2022-03-29 | Haier Us Appliance Solutions, Inc. | System and method for controlling the water fill level within a dishwasher appliance |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL128938A0 (en) * | 1999-03-11 | 2000-02-17 | Mind Guard Ltd | Implantable stroke treating device |
US9751115B2 (en) | 2009-08-05 | 2017-09-05 | Electrolux Home Products Corporation N.V. | Washer such as a dishwasher or a washing machine and method for operating a washer |
PL2283759T3 (pl) | 2009-08-05 | 2015-10-30 | Electrolux Home Products Corp Nv | Czyszczące na mokro urządzenie, takie jak zmywarka lub pralka oraz sposób obsługiwania czyszczącego na mokro urządzenia |
EP2283760A1 (de) * | 2009-08-05 | 2011-02-16 | Electrolux Home Products Corporation N.V. | Waschvorrichtung wie ein Geschirrspüler oder eine Waschmaschine und Betriebsverfahren für solch eine Waschvorrichtung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3294102A (en) * | 1964-12-09 | 1966-12-27 | Whirlpool Co | Dishwashing apparatus having improved pump means |
US3415261A (en) * | 1966-02-28 | 1968-12-10 | Westinghouse Electric Corp | Dishwasher control |
-
1981
- 1981-12-02 FR FR8122587A patent/FR2517194B1/fr not_active Expired
-
1982
- 1982-11-26 DE DE8282402158T patent/DE3274183D1/de not_active Expired
- 1982-11-26 EP EP82402158A patent/EP0080948B1/de not_active Expired
- 1982-11-29 FI FI824100A patent/FI74604C/fi not_active IP Right Cessation
- 1982-12-01 GR GR69948A patent/GR77111B/el unknown
- 1982-12-01 NO NO824029A patent/NO155374C/no unknown
- 1982-12-01 AU AU91029/82A patent/AU561252B2/en not_active Ceased
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11284773B2 (en) | 2020-01-31 | 2022-03-29 | Haier Us Appliance Solutions, Inc. | System and method for controlling the water fill level within a dishwasher appliance |
Also Published As
Publication number | Publication date |
---|---|
FI74604C (fi) | 1988-03-10 |
FI824100A0 (fi) | 1982-11-29 |
AU561252B2 (en) | 1987-05-07 |
NO155374B (no) | 1986-12-15 |
EP0080948A1 (de) | 1983-06-08 |
AU9102982A (en) | 1983-06-09 |
FI74604B (fi) | 1987-11-30 |
NO824029L (no) | 1983-06-03 |
GR77111B (de) | 1984-09-06 |
FR2517194A1 (fr) | 1983-06-03 |
DE3274183D1 (en) | 1987-01-02 |
NO155374C (no) | 1987-03-25 |
FR2517194B1 (fr) | 1985-08-09 |
FI824100L (fi) | 1983-06-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0178202B1 (de) | Geschirrspüler mit Mikrofilter für Flüssigkeit | |
EP0080948B1 (de) | Geräuscharme Geschirrspülmaschine mit beschränktem Wasserverbrauch | |
FR2556952A1 (fr) | Lave-vaisselle a usage menager | |
FR2523430A3 (fr) | Lave-vaisselle avec pompe de circulation realisee sous la forme d'une pompe centrifuge | |
FR2505643A1 (fr) | Lave-vaisselle a organes de commutation pour l'alimentation alternee en eau des deux etages | |
EP2441373B1 (de) | Verteilvorrichtung für Flüssigprodukte | |
CN108709211B (zh) | 一种用于吸油烟机的清洗方法、烟机控制器及吸油烟机 | |
FR2726583A1 (fr) | Machine a laver et secher le linge a phase anti-mousse | |
FR2517375A1 (fr) | Dispositif de tranfert individuel dose de plusieurs agents actifs pouvant etre pompes | |
EP2169104B1 (de) | Reinigungsverfahren für mindestens einen Flüssigwaschmittelbehälter einer Waschmaschine und entsprechende Waschmaschine | |
EP2441876B1 (de) | Verteilvorrichtung für Flüssigprodukte | |
EP0076739B1 (de) | Gerät zum Pumpen einer Flüssigkeit und Maschine, versehen mit einem solchen Gerät | |
FR2669207A1 (fr) | Machine a laver la vaisselle a groupe de pompage a moteur reversible. | |
JPH08266785A (ja) | 洗濯機 | |
FR2523431A3 (fr) | Pompe de circulation pour un lave-vaisselle a usage menager | |
EP2584083B1 (de) | Laundry washing machine including a water recirculation device | |
FR2572922A1 (fr) | Pompe centrifuge pour un lave-vaisselle | |
FR2618857A3 (fr) | Turbopompe a chambre de pompe realisee dans un carter de pompe, dans laquelle est dispose un rotor de pompe | |
FR2528690A3 (fr) | Disposition de la roue de pompe et du moteur electrique sur un lave-vaisselle | |
EP4012092A1 (de) | Verfahren zum wäschewaschen, waschmaschine und programm zum durchführen eines solchen verfahrens | |
EP0335452A1 (de) | Waschmaschine mit Überfluss | |
KR0121235Y1 (ko) | 식기세척기의 세척수 펌핑장치 | |
KR0124281Y1 (ko) | 세탁기 | |
FR2785302A1 (fr) | Systeme automatique d'alimentation d'une machine a laver le linge en produit de lavage, et machine equipee d'un tel systeme | |
FR2805144A1 (fr) | Appareil menager aquifere avec un systeme d'evacuation et procede pour le remplissage et la surveillance d'une evacuation d'une cuve de travail |
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 |
Designated state(s): BE CH DE GB IT LI SE |
|
17P | Request for examination filed |
Effective date: 19830615 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE CH DE GB IT LI SE |
|
ITF | It: translation for a ep patent filed | ||
REF | Corresponds to: |
Ref document number: 3274183 Country of ref document: DE Date of ref document: 19870102 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Free format text: ESSWEIN S.A. |
|
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 | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19901015 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19901019 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19901022 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19911126 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19911130 Ref country code: CH Effective date: 19911130 Ref country code: BE Effective date: 19911130 |
|
BERE | Be: lapsed |
Owner name: ESSWEIN S.A. Effective date: 19911130 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
ITTA | It: last paid annual fee | ||
EAL | Se: european patent in force in sweden |
Ref document number: 82402158.8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19961019 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19961021 Year of fee payment: 15 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971127 |
|
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: 19980801 |
|
EUG | Se: european patent has lapsed |
Ref document number: 82402158.8 |