EP1767134A2 - Unité de lavage - Google Patents

Unité de lavage Download PDF

Info

Publication number
EP1767134A2
EP1767134A2 EP06120061A EP06120061A EP1767134A2 EP 1767134 A2 EP1767134 A2 EP 1767134A2 EP 06120061 A EP06120061 A EP 06120061A EP 06120061 A EP06120061 A EP 06120061A EP 1767134 A2 EP1767134 A2 EP 1767134A2
Authority
EP
European Patent Office
Prior art keywords
washing
nozzles
washing unit
series
ducts
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
Application number
EP06120061A
Other languages
German (de)
English (en)
Other versions
EP1767134A3 (fr
EP1767134B1 (fr
Inventor
Luciano Achille Luigi Berti
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.)
Comenda Ali SpA
Original Assignee
Comenda Ali SpA
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 Comenda Ali SpA filed Critical Comenda Ali SpA
Publication of EP1767134A2 publication Critical patent/EP1767134A2/fr
Publication of EP1767134A3 publication Critical patent/EP1767134A3/fr
Application granted granted Critical
Publication of EP1767134B1 publication Critical patent/EP1767134B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays

Definitions

  • the present invention relates to a whirl washing unit for dishwashers, and in particular to a whirl washing unit for industrial dishwashers.
  • Industrial dishwashers are traditionally provided with a washing unit comprising a first washing whirl, provided with two arms provided with dispensing nozzles, and with a second rinsing whirl arranged coaxially to the first washing whirl.
  • washing unit necessarily implies a considerable vertical development of the machine, with consequent inconvenience of use and overall dimensions.
  • washing units have therefore been proposed provided with cross shaped whirls, with dispensing jets located on all the four arms of the cross.
  • the cleaning efficiency increases but not proportionally to the construction complexity of the whirl. Moreover, in any case the cleaning effect does not achieve the desired efficiency.
  • This type of whirls further implies a high waste of water and energy, due to the high amount of hot water required for washing.
  • the object of the present invention therefore is to obviate the disadvantages mentioned above and in particular, that of obtaining a washing unit capable of reducing the consumption of water and energy required for washing.
  • Another object of the present invention is to obtain a washing unit which should be easy and inexpensive to make and which should achieve at the same time a high washing efficiency.
  • a washing unit 10 for dishwashers of the type provided with at least one washing whirl 11 comprising at least two series of nozzles 5, 5' for dispensing the washing liquid.
  • the two series of nozzles 5, 5' are arranged according to a first and a second row, lying on the same plane and parallel.
  • the washing unit 10 comprises a separate washing feeding duct 3, 4 for each row of washing nozzles 5, 5'.
  • each washing duct 3 or 4 sequentially connects all the washing nozzles 5, 5' of a same row.
  • the washing ducts 3, 4 are, of course like the rows, arranged in parallel and are spaced.
  • the spraying zone of washing liquid that impinges the kitchenware and consequently the washing efficiency by mechanical action increase.
  • the distance between the rows of nozzles 5, 5' implies during the dispensing of the washing liquid that also the two sheets of washing liquid, produced thereby, are temporally spaced.
  • the temporal distance between the two washing sheets corresponds to the time required for the whirl to cover half a turn, as a consequence the emollient action of the washing liquid (detergent mixed with water) is amplified.
  • the washing unit 10 further comprises, as mentioned hereinbefore, at least one series of rinsing nozzles 7, arranged according to a third row.
  • the row of rinsing nozzles 7 lies in the same plane as the series of washing nozzles 5, 5'.
  • the washing unit 10 comprises a feeding duct 6 especially dedicated to the feeding of the row of rinsing nozzles 7.
  • the rinsing duct 6 sequentially connects all the rinsing nozzles 7 so as to form the above row.
  • the row of rinsing nozzles 7 therefore lies in the same plane as the rows of washing nozzles 5, 5' and is parallel thereto.
  • the washing unit 10 consists of an enclosure 17 which comprises at least two half shells 18, 19 of stamped plate.
  • the two half shells 19, 18 are suitably shaped so as to form upper and lower half ducts.
  • the two half ducts 18, 19 are connected to each other for obtaining the ducts from the connection of the half ducts.
  • the two half shells 18, 19 are connected to one another by seaming, whereas the hydraulic separation between ducts 3, 4, 6 thus formed is obtained by projection welding.
  • the hydraulic separation between ducts 3, 4, 6 formed by the connection of the two half shells 18, 19 is obtained by seaming.
  • the washing unit 10 further comprises a mount 20 for a driving shaft of the known type or in any case within the capacity of the man skilled in the art.
  • nozzles 5, 5', 7 are of known type or, in any case, easy to find on the market and for this reason they are not described in further detail.
  • washing unit consisting of two rows of nozzles 5, 5' for dispensing washing liquid and of a row of rinsing nozzles 7, in any case it is possible to provide for more rows of nozzles for dispensing washing liquid 5, 5' and more rows of rinsing nozzles 7.
  • the two pairs shall be arranged substantially perpendicular to one another, forming a cross shaped whirl.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Nozzles (AREA)
EP20060120061 2005-09-22 2006-09-04 Unité de lavage Active EP1767134B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20051770 ITMI20051770A1 (it) 2005-09-22 2005-09-22 Gruppo di lavaggio

Publications (3)

Publication Number Publication Date
EP1767134A2 true EP1767134A2 (fr) 2007-03-28
EP1767134A3 EP1767134A3 (fr) 2009-01-14
EP1767134B1 EP1767134B1 (fr) 2014-11-05

Family

ID=37563231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060120061 Active EP1767134B1 (fr) 2005-09-22 2006-09-04 Unité de lavage

Country Status (3)

Country Link
EP (1) EP1767134B1 (fr)
ES (1) ES2528817T3 (fr)
IT (1) ITMI20051770A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017171619A1 (fr) * 2016-03-30 2017-10-05 Granuldisk Ab Bras de pulvérisation pour appareil de lavage de vaisselle
US11464391B2 (en) 2017-10-31 2022-10-11 Electrolux Appliances Aktiebolag Spray arm assembly
US11612299B2 (en) 2017-10-31 2023-03-28 Electrolux Appliances Aktiebolag Wash arm assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3393327B1 (fr) 2015-12-21 2020-06-17 Electrolux Appliances Aktiebolag Lave-vaisselle comportant un agencement de bras de lavage
WO2019086108A1 (fr) 2017-10-31 2019-05-09 Electrolux Appliances Aktiebolag Ensemble bras gicleur de lave-vaisselle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063746A (en) * 1930-11-03 1936-12-08 Hobart Mfg Co Washing machine
DE7024995U (de) * 1970-07-03 1971-03-11 Robert Bosch Gmbh Geschirrspülmaschine
EP0795292A2 (fr) * 1996-02-09 1997-09-17 CANDY S.p.A. Lave vaisselle comportant un bras tournant d'arrosage avec des buses de pulvérisation et procédé
US5725002A (en) * 1996-07-24 1998-03-10 Tca, Inc. Dish washing machine having interchangeable top and bottom spray arms
EP1040787A1 (fr) * 1999-03-29 2000-10-04 Electrolux Zanussi S.p.A. Machine à laver la vaisselle avec bras d'arrosage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063746A (en) * 1930-11-03 1936-12-08 Hobart Mfg Co Washing machine
DE7024995U (de) * 1970-07-03 1971-03-11 Robert Bosch Gmbh Geschirrspülmaschine
EP0795292A2 (fr) * 1996-02-09 1997-09-17 CANDY S.p.A. Lave vaisselle comportant un bras tournant d'arrosage avec des buses de pulvérisation et procédé
US5725002A (en) * 1996-07-24 1998-03-10 Tca, Inc. Dish washing machine having interchangeable top and bottom spray arms
EP1040787A1 (fr) * 1999-03-29 2000-10-04 Electrolux Zanussi S.p.A. Machine à laver la vaisselle avec bras d'arrosage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017171619A1 (fr) * 2016-03-30 2017-10-05 Granuldisk Ab Bras de pulvérisation pour appareil de lavage de vaisselle
US11464391B2 (en) 2017-10-31 2022-10-11 Electrolux Appliances Aktiebolag Spray arm assembly
US11612299B2 (en) 2017-10-31 2023-03-28 Electrolux Appliances Aktiebolag Wash arm assembly

Also Published As

Publication number Publication date
EP1767134A3 (fr) 2009-01-14
EP1767134B1 (fr) 2014-11-05
ES2528817T3 (es) 2015-02-12
ITMI20051770A1 (it) 2007-03-23

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