WO1992012665A1 - A nozzle for a dish washing machine operating with granules - Google Patents

A nozzle for a dish washing machine operating with granules Download PDF

Info

Publication number
WO1992012665A1
WO1992012665A1 PCT/SE1992/000038 SE9200038W WO9212665A1 WO 1992012665 A1 WO1992012665 A1 WO 1992012665A1 SE 9200038 W SE9200038 W SE 9200038W WO 9212665 A1 WO9212665 A1 WO 9212665A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
granules
opening
blade
shaped
Prior art date
Application number
PCT/SE1992/000038
Other languages
French (fr)
Inventor
Per JÖNEMO
Rolf Lindqvist
Original Assignee
Granuldisk Ab
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 Granuldisk Ab filed Critical Granuldisk Ab
Publication of WO1992012665A1 publication Critical patent/WO1992012665A1/en

Links

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
    • A47L15/0094—Washing or rinsing machines for crockery or tableware cleaning with abrasive solid particles, e.g. by blasting the crockery with liquid containing granules
    • 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
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
    • 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
    • A47L15/4278—Nozzles
    • 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
    • A47L2601/00—Washing methods characterised by the use of a particular treatment
    • A47L2601/18—Liquid and granule

Definitions

  • FIGS 7 and 8 are plan views of modified embodiments of the nozzle blade without holder for the attachment thereof to the nozzle conduit.
  • FIGS 1 and 2 there is provided in this embodiment of the invention at the end of each of a number of conduits 10 having circular cross section, a nozzle 11 which forms an integrated path of the conduit provided in ⁇ dividually for the related nozzle.
  • Each nozzle thus has a separate supply conduit.
  • Each nozzle changes from the circular cross section to a slot-shaped cross section having longitudinal sides depressed centrally as is most clearly shown in FIG 2, so that the nozzle opening 12 is shaped nearly as a peanut, the circular cross section and the slot-shaped cross sec- tion as well as the transition therebetween having substan ⁇ tially the same area.

Abstract

Nozzle for a dish washing machine operating with granules which is adapted to spread in a fan-shaped fashion the liquid and granules, if any, entrained therein ejected from the nozzle. The nozzle (11) is constructed as an integrated portion of a supply conduit (10) provided individually for the nozzle, said conduit being connected with the nozzle orifice (12) by a curved portion.

Description

A NOZZLE FOR A DISH WASHING MACHINE OPERATING WITH GRANULES
The invention relates to a nozzle for a dish washing machine operating with granules, for fan-shaped distribu¬ tion of the liquid ejected from the nozzle, and granules, if any, entrained therein.
In a dish washing machine operating with granules, liquid with granules entrained therein is ejected towards the goods to be washed in order to remove coatings on such goods by mechanical working, "blasting". Usually the goods to be washed is processed by means of plastic granules which are ejected towards the goods by means of water. In order that the goods will be uniformly processed it is necessary that the liquid is ejected in a fan-shaped or sector-shaped fashion when leaving the nozzle and that the granules are uniformly distributed in the liquid ejected in this fashion. At rinsing water only is ejected towards the goods, and also in that case it is desired to provide a distribution of the liquid so that the goods will be thoroughly rinsed and adhering granules, if any, will be completely removed.
In order that this will be achieved the nozzle of the invention has obtained the characterizing features accor- ding to claim 1.
In one embodiment of the invention the nozzle changes from circular cross section to slot-shaped cross section while maintaining the cross sectional area unchanged, the slot-shaped cross section having depressed longitudinal sides. This embodiment is most suitable for large dish washing machines operating with granules and large liquid and granule flows. However, in small dish washing machines operating with granules wherein the liquid and granule flows are smaller and the nozzle area is correspondingly smaller, the nozzles may be plugged due to packing of granules in the slot-shaped nozzle opening. Therefore, according to the invention also another embodiment is proposed which does not suffer from said disadvantage, and in this embodiment there is provided in front of the nozzle opening which is preferably circular a nozzle blade projecting at least partly into the way of the nozzle jet, said blade forming an impact surface for the liquid and granules, if any, entrained therein.
In order to explain the invention in more detail reference is made to the accompanying drawing in which FIG 1 is a side view disclosing a number of nozzles according to the first embodiment, said nozzles being loca¬ ted at different levels,
FIG 2 is an enlarged end view of one of the nozzles in FIG 1, FIG 3 is a plan view of a number of nozzles according to the other embodiment,
FIG 4 is a side view of a nozzle blade in the embodi¬ ment according to FIG 3,
FIG 5 is an end view of the nozzle blade in FIG 4, FIG 6 is a plan view of the nozzle blade, and
FIGS 7 and 8 are plan views of modified embodiments of the nozzle blade without holder for the attachment thereof to the nozzle conduit.
Referring to FIGS 1 and 2 there is provided in this embodiment of the invention at the end of each of a number of conduits 10 having circular cross section, a nozzle 11 which forms an integrated path of the conduit provided in¬ dividually for the related nozzle. Each nozzle thus has a separate supply conduit. Each nozzle changes from the circular cross section to a slot-shaped cross section having longitudinal sides depressed centrally as is most clearly shown in FIG 2, so that the nozzle opening 12 is shaped nearly as a peanut, the circular cross section and the slot-shaped cross sec- tion as well as the transition therebetween having substan¬ tially the same area.
The longitudinal side of the nozzle opening is cur¬ ved, preferably along a circular bow, as is shown at 13 in FIG 1.
Due to the described shape of the nozzle the granules will be forced to move away from the center of the slot where the granules otherwise tend to concentrate, towards the ends of the slot so that there will be obtained a uni- form distribution of the granules in the liquid ejected in a fan-shaped or sector-shaped fashion according to the dotted lines 14 in FIG 1.
As far as small liquid and granule flows are con¬ cerned there may be in the embodiment according to FIGS 1 and 2 some risk of the nozzle being plugged by concentra¬ tion of the granules above all to the center of the slot- shaped opening. This risk is eliminated in the embodiment according to FIGS 3 - 6.
Referring to FIGS 3 - 6 there is shown in FIG 3 four supply conduits 10 having circular cross section and termi¬ nating at a circular nozzle opening. In order to provide the necessary distribution of the ejected liquid and granu¬ les, if any, entrained therein, in the required fan-shaped fashion there is mounted to each conduit 10 a nozzle blade 15 which is welded or brazed to a lap 16 on a cuff or cramp 17 which is clamped around the conduit 10 by means of a screw 18. The nozzle blade is shaped as a tongue and is angled towards the axis of the nozzle opening so that the blade is located partly in the way of the jet from the nozzle. In FIGS 3 - 6 the nozzle blade has such angle and such length that it extends slightly beyond the axis of the nozzle opening, as will be seen from FIG 3. The nozzle blade forms an impact surface for liquid and granules, if any, entrained therein so that the liquid jet from the nozzle opening will be split and will be imparted a fan- or sector-shape. Since the nozzle conduit has circular shape up to the opening there is no risk at all of plugging of the nozzle opening but nevertheless there is obtained a distribution of liquid and granules. This distribution can be influenced in different manners by changing the angle of the nozzle blade, by changing the shape of the nozzle blade, or by making the impact surface of the nozzle blade flat as in the embodiment disclosed, or curved, either con¬ vex or concave. Thus, there are disclosed in FIGS 7 and 8 modified embodiments of the nozzle blade by means of which an increased distribution of liquid and granules can be ob¬ tained. It is also possible to mount the nozzle blade in different rotated positions on the nozzle conduit in order to provide the most suitable direction of the fan-shaped nozzle jet.
The embodiment according to FIGS 3 - 8 is thus preferred because it provides greater possibilities of individually adjusting the distribution than the embodiment first des¬ cribed, the risk of plugging of the nozzle opening at the same time being removed.

Claims

1. Nozzle for a dish washing machine operating with granules, for fan-shaped distribution of the liquid ejected from the nozzle, and granules, if any, entrained therein, c h a r a c t e r i z e d in that the nozzle (11) forms an integrated part of a supply conduit (10) provided individu¬ ally for the nozzle, said conduit connecting at a curved portion to the nozzle opening.
2. Nozzle as in claim 1, c h a r a c t e r i z e d in that the nozzle changes from circular cross section to slot-shaped cross section of the nozzle opening (12) while maintaining the cross sectional area unchanged, the slot- shaped cross section having depressed longitudinal sides.
3. Nozzle as in claim 2, c h a r a c t e r i z e d in that the opening edge of the longitudinal side (13) of the slot-shaped nozzle opening (12) is curved, preferably along a circular bow.
4. Nozzle as in claim 1, c h a r a c t e r i z e d in that in front of the nozzle opening there is provided a nozzle blade (15) projecting at least partly into the way of the nozzle jet, said blade forming an impact surface for the liquid and granules, if any, entrained therein.
5. Nozzle as in claim 4, c h a r a c t e r i z e d in that the nozzle opening is circular.
6. Nozzle as in claim 4 or 5, c h a r a c t e r¬ i z e d in that the edge of the nozzle blade has a convex curvature.
7. Nozzle as in any of claims 4 to 6, c h a r a c¬ t e r i z e d in that the nozzle blade (15) is demountably attached to the nozzle conduit (10) by means of a clamp (17).
8. Nozzle as in any of claims 4 to 7, c h a r a c¬ t e r i z e d in that the impact surface is flat or is cur¬ ved concavely or convexly.
PCT/SE1992/000038 1991-01-18 1992-01-20 A nozzle for a dish washing machine operating with granules WO1992012665A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9100157A SE9100157L (en) 1991-01-18 1991-01-18 NOZZLE FOR GRANULD DISK MACHINE
SE9100157-8 1991-01-18

Publications (1)

Publication Number Publication Date
WO1992012665A1 true WO1992012665A1 (en) 1992-08-06

Family

ID=20381650

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1992/000038 WO1992012665A1 (en) 1991-01-18 1992-01-20 A nozzle for a dish washing machine operating with granules

Country Status (3)

Country Link
AU (1) AU1178592A (en)
SE (1) SE9100157L (en)
WO (1) WO1992012665A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996009790A1 (en) * 1994-09-27 1996-04-04 Henkel-Ecolab Gmbh & Co. Ohg Method of cleaning crockery in commercial dish washers and a dish washer suitable for implementing the said method
WO2011144540A2 (en) 2010-05-19 2011-11-24 Electrolux Home Products Corporation N.V. Arrangement in a dishwasher
EP2671494A1 (en) * 2012-06-05 2013-12-11 Samsung Electronics Co., Ltd Dish washing machine
EP2870907A1 (en) * 2013-11-12 2015-05-13 Samsung Electronics Co., Ltd Dishwasher
CN106028896A (en) * 2013-12-31 2016-10-12 三星电子株式会社 Dishwasher and control method therefor
CN106102541A (en) * 2013-12-31 2016-11-09 三星电子株式会社 Dish-washing machine and its control method
US11272827B2 (en) 2013-11-12 2022-03-15 Samsung Electronics Co., Ltd. Jet unit, jet nozzle and manufacturing method thereof, and dish washing machine having the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1220095B (en) * 1960-09-02 1966-06-30 Wilhelm Lepper Dr Ing Dishwasher
CH426128A (en) * 1964-10-02 1966-12-15 Ed Hildebrand Fa Ing Spray nozzle
NO118903B (en) * 1965-07-05 1970-02-23 A Vegeby
GB1271004A (en) * 1969-12-02 1972-04-19 Horstine Farmery Ltd Improvements in and relating to air flow nozzles for distributing materials onto the ground or onto growing crops
GB2159733A (en) * 1984-06-07 1985-12-11 George Beale Wills Water dispensing device
GB2189169A (en) * 1986-04-19 1987-10-21 Harold Bone Gardening aid

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1220095B (en) * 1960-09-02 1966-06-30 Wilhelm Lepper Dr Ing Dishwasher
CH426128A (en) * 1964-10-02 1966-12-15 Ed Hildebrand Fa Ing Spray nozzle
NO118903B (en) * 1965-07-05 1970-02-23 A Vegeby
GB1271004A (en) * 1969-12-02 1972-04-19 Horstine Farmery Ltd Improvements in and relating to air flow nozzles for distributing materials onto the ground or onto growing crops
GB2159733A (en) * 1984-06-07 1985-12-11 George Beale Wills Water dispensing device
GB2189169A (en) * 1986-04-19 1987-10-21 Harold Bone Gardening aid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DERWENT'S ABSTRACT, No. 89- 21 814/03; & SU,A,1 407 566, publ. week 8903, (WOOL IND REST INST). *

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996009790A1 (en) * 1994-09-27 1996-04-04 Henkel-Ecolab Gmbh & Co. Ohg Method of cleaning crockery in commercial dish washers and a dish washer suitable for implementing the said method
CN102917629B (en) * 2010-05-19 2015-06-17 伊莱克斯家用产品公司 Arrangement in a dishwasher
WO2011144540A2 (en) 2010-05-19 2011-11-24 Electrolux Home Products Corporation N.V. Arrangement in a dishwasher
WO2011144540A3 (en) * 2010-05-19 2012-01-19 Electrolux Home Products Corporation N.V. Arrangement in a dishwasher
CN102917629A (en) * 2010-05-19 2013-02-06 伊莱克斯家用产品公司 Arrangement in a dishwasher
US9211051B2 (en) 2010-05-19 2015-12-15 Electrolux Home Products Corporation N.V. Dishwasher spray arm with spreading member
CN103462574A (en) * 2012-06-05 2013-12-25 三星电子株式会社 Dish washing machine
US9282873B2 (en) 2012-06-05 2016-03-15 Samsung Electronics Co., Ltd. Dish washing machine
CN103462574B (en) * 2012-06-05 2017-10-24 三星电子株式会社 Dish-washing machine
US8876984B2 (en) 2012-06-05 2014-11-04 Samsung Electronics Co., Ltd. Dish washing machine
EP2671494A1 (en) * 2012-06-05 2013-12-11 Samsung Electronics Co., Ltd Dish washing machine
US10362924B2 (en) 2013-11-12 2019-07-30 Samsung Electronics Co., Ltd. Jet unit, jet nozzle and manufacturing method thereof, and dish washing machine having the same
CN104622403A (en) * 2013-11-12 2015-05-20 三星电子株式会社 Jet unit, jet nozzle and manufacturing method the same and dish washing machine
EP2870907A1 (en) * 2013-11-12 2015-05-13 Samsung Electronics Co., Ltd Dishwasher
US11272827B2 (en) 2013-11-12 2022-03-15 Samsung Electronics Co., Ltd. Jet unit, jet nozzle and manufacturing method thereof, and dish washing machine having the same
CN106028896A (en) * 2013-12-31 2016-10-12 三星电子株式会社 Dishwasher and control method therefor
CN106102541A (en) * 2013-12-31 2016-11-09 三星电子株式会社 Dish-washing machine and its control method
US10149594B2 (en) 2013-12-31 2018-12-11 Samsung Electronics Co., Ltd. Dishwasher and method for controlling same
US10420451B2 (en) 2013-12-31 2019-09-24 Samsung Electronics Co., Ltd. Dishwasher and control method therefor
CN106102541B (en) * 2013-12-31 2019-11-05 三星电子株式会社 Dish-washing machine and its control method
CN106028896B (en) * 2013-12-31 2019-11-15 三星电子株式会社 Dish-washing machine and its control method

Also Published As

Publication number Publication date
SE9100157D0 (en) 1991-01-18
SE9100157L (en) 1992-07-19
AU1178592A (en) 1992-08-27

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