EP0321025A2 - Lave-vaisselle avec bras d'aspersion entraîné en rotation par un moteur hydraulique - Google Patents

Lave-vaisselle avec bras d'aspersion entraîné en rotation par un moteur hydraulique Download PDF

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Publication number
EP0321025A2
EP0321025A2 EP88202807A EP88202807A EP0321025A2 EP 0321025 A2 EP0321025 A2 EP 0321025A2 EP 88202807 A EP88202807 A EP 88202807A EP 88202807 A EP88202807 A EP 88202807A EP 0321025 A2 EP0321025 A2 EP 0321025A2
Authority
EP
European Patent Office
Prior art keywords
spray
arms
dish
hydraulic
water
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.)
Withdrawn
Application number
EP88202807A
Other languages
German (de)
English (en)
Other versions
EP0321025A3 (fr
Inventor
Erminio Dall'oglio
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0321025A2 publication Critical patent/EP0321025A2/fr
Publication of EP0321025A3 publication Critical patent/EP0321025A3/fr
Withdrawn legal-status Critical Current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
    • A47L15/14—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
    • 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

Definitions

  • Dish-washing machines usually feature rotary spray-arms which wash and rinse the dishes by the agency of the jets of water emitted by the said arms.
  • the spray-arms are set in rotation by the reaction brought about by the emission of the jets at an appropriate angle with respect to the axis of rotation of the spray-arms.
  • the overall object of the present invention is to obviate the aforesaid disadvantages by embodying a rotary spray-arm device which remains economical to produce, still employs the flow of water within the machine to rotate the spray-arms, but which at the same time can be embodied with the said jets of water orientated in any direction - in particular so as to strike the dishes in a uniform manner.
  • the present invention embodies a device for a dish-washing machine of the type comprising at least one spray-arm supported rotatably on a first shaft, wherein the said first shaft is connected to a second rotary shaft is connected of a hydraulic motor.
  • Figure 1 shows a first example of embodiment in accordance with the principles of the invention, in the form of a device consisting of a set of spray-arms 10, of generally circular section, on the surfaces of which are bores communicating with the exterior by means of nozzles 11 whose orientation determines the direction in which the jets of water will be emitted.
  • the spray-arms 10 are at one end solidly interconnected by means of a hollow connector 12 which is in turn connected to one end of a hollow shaft 13 disposed at right angles to the surface formed by the spray-arms 10.
  • the shaft 13 Proximal to its other end, the shaft 13 carries blades 14 disposed radially to it.
  • the said end carrying the blades 14 is inserted within a container 15 and is supported so as to permit free rotation of the shaft 13 about its own axis.
  • the container has a filler mouth 16.
  • the container 15 and the blades 14 thus form a hydraulic turbine; when a line (not shown in the Figures) carrying a flow of water is connected to the filler mouth 16, on entering the container 15 the said flow sets in rotary motion the blades 14, so causing the set of spray-arms 10 to rotate. Not having any other outlet, the water thas has entered the container then flows within the shaft 13 until it reaches the connector 12, from which it deviates along the spray-arms 10 and finally issues in the form of jets from the nozzles 11 given the desired angling.
  • FIG. 2 A second example of application of the principles of the invention is as shown in Figure 2 and 3.
  • the rotary spray-arms are divided into two independent sets - one set of upper arms 17 and one set of lower arms 18, both comparable to the heretofore described spray-arms 10.
  • the upper arms 17, which on their surfaces carry nozzles 19 communicating with the interior of the said arms, are interconnected by means of a connector 20 which is in turn connected to a shaft 21 carrying blades 22 at its other end (in the same way as in the case of the spray-arms 10, the connector 12, the shaft 13 and the blades 14 of the previously described embodiment).
  • the shaft 21 with blades 22 is inserted into a first cavity 23 of a container 24 and supported by means of a hollow shaft 35 coaxial with and external to the latter, solid with the container 24 and carrying on its top a ring nut 36 and at its base a bush 37 so as to permit the free rotation of the shaft 21 about its own axis.
  • the first cavity 23 communicates with the exterior by means of a filler mouth 25 positioned at the level of the blades 22, in this way forming with the blades 22 a first hydraulic turbine (comparable to the one hitherto described in the first example of embodiment of Figure 1).
  • a second cavity 26 of form generally annular around the hollow shaft 35 is formed in part by an upper wall 27 of the container 24 that extends above the first cavity 23 and in part by a shell shaped cover 28 rotating about the hollow shaft 35 and having its lateral surface absolutely flush with the upper portion of the wall 27; the cover 28 carries within it second blades 29 which extend into the interior of the part of the cavity 26 formed by the upper wall 27 of the container 24.
  • the cover 28 features emission mouths 30 to which are connected the lower arms 18 carrying nozzles 31 communicating with the interior of the latter.
  • a second filler mouth 32 which communicates with the cavity 26 at the level of the blades 29.
  • the cover 28 and the blades 29 connected thereto thus come to form a second hydraulic turbine disposed axially with respect to the first hydraulic turbine.
  • FIG. 4 A diagrammatic example of such an embodiment is given in Figure 4, where the two devices are disposed as follows within the same dish-washing machine: one device (similar to that shown in Figure 1) overhead and one device (similar to that shown in Figure 2) below. Together with the upper set of arms of the device situated in the lower position, the overhead device is fed through a line 33 with clean water during the rinsing cycle, while the lower set of arms of the device in the lower position is fed, during the washing cycle, through a second line 34, with water mixed with detergent. In this way the washing and rinsing cycles of the dish-washing machine can be kept completely separate and there can at the same time be obtained two different dish spraying characteristics depending on the operation (washing with detergent or rinsing) being carried out by the machine.
  • the form of the rotary spray-arms herein described is an exemplifying form only, and the form may be any held to be helpful in obtaining the best washing action with the dish-washing machine.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP88202807A 1987-12-18 1988-12-08 Lave-vaisselle avec bras d'aspersion entraíné en rotation par un moteur hydraulique Withdrawn EP0321025A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2291387U 1987-12-18
IT2291387U IT213087Z2 (it) 1987-12-18 1987-12-18 Dispositivo a bracci rotanti tramite un motore idraulico per macchina lavastoviglie.

Publications (2)

Publication Number Publication Date
EP0321025A2 true EP0321025A2 (fr) 1989-06-21
EP0321025A3 EP0321025A3 (fr) 1989-07-12

Family

ID=11201839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88202807A Withdrawn EP0321025A3 (fr) 1987-12-18 1988-12-08 Lave-vaisselle avec bras d'aspersion entraíné en rotation par un moteur hydraulique

Country Status (3)

Country Link
EP (1) EP0321025A3 (fr)
JP (1) JPH01201226A (fr)
IT (1) IT213087Z2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10039880A1 (de) * 2000-08-16 2002-03-07 Aeg Hausgeraete Gmbh Sprühvorrichtung für eine Geschirrspülmaschine
EP1183983A3 (fr) * 2000-08-16 2003-04-02 AEG Hausgeräte GmbH Dispositif d'arrosage pour lave-vaisselle
EP3222192A1 (fr) * 2016-03-21 2017-09-27 Whirlpool Corporation Lave-vaisselle ayant un système de lavage alimenté hydrauliquement
EP4098172A1 (fr) 2021-06-03 2022-12-07 Belimed Life Science AG Dispositif de pulvérisation pour une machine de nettoyage permettant de nettoyer des ustensiles médicaux, pharmaceutiques et/ou de laboratoire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR30464E (fr) * 1925-01-14 1926-07-17 P Navarre Et Fils Soc Machine à laver la vaisselle
DE474197C (de) * 1926-02-10 1929-04-06 P Navarre & Fils Soc Wasserverteilungsvorrichtung fuer Geschirrspuelmaschinen
US2286203A (en) * 1939-01-13 1942-06-16 Hobart Mfg Co Washing machine
US4298015A (en) * 1979-12-12 1981-11-03 Garza Antonio M Dishwasher

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10039880A1 (de) * 2000-08-16 2002-03-07 Aeg Hausgeraete Gmbh Sprühvorrichtung für eine Geschirrspülmaschine
EP1183983A3 (fr) * 2000-08-16 2003-04-02 AEG Hausgeräte GmbH Dispositif d'arrosage pour lave-vaisselle
EP3222192A1 (fr) * 2016-03-21 2017-09-27 Whirlpool Corporation Lave-vaisselle ayant un système de lavage alimenté hydrauliquement
US10064536B2 (en) 2016-03-21 2018-09-04 Whirlpool Corporation Dishwasher with hydraulically powered wash system
US10405725B2 (en) 2016-03-21 2019-09-10 Whirlpool Corporation Dishwasher with hydraulically powered wash system
EP4098172A1 (fr) 2021-06-03 2022-12-07 Belimed Life Science AG Dispositif de pulvérisation pour une machine de nettoyage permettant de nettoyer des ustensiles médicaux, pharmaceutiques et/ou de laboratoire
US12172196B2 (en) 2021-06-03 2024-12-24 Belimed Life Science Ag Spraying device for a cleaning machine for cleaning medical, pharmaceutical and/or laboratory utensils

Also Published As

Publication number Publication date
IT213087Z2 (it) 1989-10-13
EP0321025A3 (fr) 1989-07-12
JPH01201226A (ja) 1989-08-14
IT8722913V0 (it) 1987-12-18

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