EP1199515A1 - Dampferzeuger mit verbesserter Düse - Google Patents

Dampferzeuger mit verbesserter Düse Download PDF

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Publication number
EP1199515A1
EP1199515A1 EP01123966A EP01123966A EP1199515A1 EP 1199515 A1 EP1199515 A1 EP 1199515A1 EP 01123966 A EP01123966 A EP 01123966A EP 01123966 A EP01123966 A EP 01123966A EP 1199515 A1 EP1199515 A1 EP 1199515A1
Authority
EP
European Patent Office
Prior art keywords
injector
steam generator
conduit
water
heating element
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
EP01123966A
Other languages
English (en)
French (fr)
Other versions
EP1199515B1 (de
Inventor
Cristiano Di Leta
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.)
Euro Star Srl
Original Assignee
Euro Star Srl
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11453187&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1199515(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Euro Star Srl filed Critical Euro Star Srl
Publication of EP1199515A1 publication Critical patent/EP1199515A1/de
Application granted granted Critical
Publication of EP1199515B1 publication Critical patent/EP1199515B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/287—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in sprays or in films

Definitions

  • the present invention refers to a steam generator, which is suitable for use in a number of different applications, such as for instance steam cleaning machines, clothes irons, fan-assisted or suction-type ironing boards with refill function, coffee brewing and similar machines, and namely such a steam generator provided with an improved water injector.
  • EP-A-1 026 306 in the name of the same Applicant discloses a so-called vertical-axis steam generator, into which the water is let via a conduit that extends through a side wall of the steam generator in a horizontal direction. The water is let under pressure into the interior of the steam generator in such a manner as to enable it to practically hit against the opposite side wall, in a zone that corresponds to the one in which the thermostat controlling the operation of the generator is actually situated.
  • the steam generator described in the above cited European patent publication is certainly advantageous, since it enables both the amount of water supplied to the generator and the steam generation rate or rapidity to be varied. Furthermore, the particular arrangement of the electric heating elements on the vertical side walls of the generator enables the power output of the generator itself to be varied, up to a doubling thereof in view of heavy-duty, industrial applications of the generator.
  • the steam generator according to the present invention illustrated in the Figures is constituted by a hollow body 10 in the shape of a parallelepiped, which is arranged with its major axis substantially vertical, and which has side faces having a larger surface than the upper and bottom bases thereof.
  • the hollow body 10 is formed by two half-shells 11 and 12 which are joined to each other along the peripheral edge 13 thereof.
  • the water is let into the interior of the hollow body via a conduit 16 which penetrates thereinto in a substantially horizontal direction by passing through the wall on the opposite side of the wall carrying the electric heating element 14.
  • thermostat 17 which controls the energization, ie. operation of the water-supply pump (not shown), and possibly a further safety thermostat 18.
  • the steam generated inside the generator 10 is delivered to the steam-using apparatus (cleaning machine, steam iron or the like) via a conduit 19.
  • the water supply conduit 16 which passes through the wall of the half-shell 12, is made out of metal tubing, preferably a stainless-steel pipe, and extends into the steam generator with an injector 21.
  • the conduit 16, and therefore also the injector 21, is normally welded on to the wall of the half-shell 12.
  • the injector 21 is arranged in a substantially horizontal direction and the internal extremity thereof terminates at a short distance from the wall of the opposite half-shell 11. In this manner, the sensitiveness and responsiveness of the thermostatic control of the steam generator are enhanced, with the advantages that have already been described in EP-A-1026306.
  • the inner surface of the injector is protected with the use of a lining sheath 22 of a polymeric material.
  • a lining sheath 22 is made of a thermosetting polymer.
  • the currently preferred one is a silicone ensuring a smooth surface and a heat resistance of at least 250°C.
  • This material furthermore features excellent heat and electric insulation properties, along with a marked water-repellent and non-stick capacity.
  • the lining sheath 22 may be applied using any practicable means known in the art, although the solution that actually seems to be the technically most simple and advantageous one is constituted by the insertion in the injector 22 of a lining sheath in the form of a tubule 22.
  • the tubule 22 is allowed to slightly protrude from the internal extremity of the same injector.
  • the tubule 22 has an annular collar 23 that enables it to abut against a corresponding inner prominence 24 of the injector 21. This makes it much easier for the tubule 22 to be inserted and properly arranged inside the injector 21, while preventing the same tubule from possibly slipping out owing to the action of the supply pressure of the water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Nozzles (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Detergent Compositions (AREA)
EP01123966A 2000-10-16 2001-10-08 Dampferzeuger mit verbesserter Düse Expired - Lifetime EP1199515B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000PN000063A ITPN20000063A1 (it) 2000-10-16 2000-10-16 Generatore di vapore con iniettore perfezionato
ITPN000063 2000-10-16

Publications (2)

Publication Number Publication Date
EP1199515A1 true EP1199515A1 (de) 2002-04-24
EP1199515B1 EP1199515B1 (de) 2003-07-02

Family

ID=11453187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01123966A Expired - Lifetime EP1199515B1 (de) 2000-10-16 2001-10-08 Dampferzeuger mit verbesserter Düse

Country Status (5)

Country Link
EP (1) EP1199515B1 (de)
AT (1) ATE244379T1 (de)
DE (1) DE60100426T2 (de)
ES (1) ES2202249T3 (de)
IT (1) ITPN20000063A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1795644A1 (de) * 2003-08-13 2007-06-13 Lg Electronics Inc. Trommelwaschmaschine und Dampferzeuger dafür

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1580293A (en) * 1925-02-09 1926-04-13 Louis A Fitzer Electrically-operated steam boiler
US4578563A (en) * 1983-10-25 1986-03-25 Taishin Electric Ind. Co., Ltd. Steam generator
EP0638684A1 (de) * 1993-08-06 1995-02-15 Moulinex S.A. Dampferzeuger für Bügeleisen
EP1026306A1 (de) * 1999-02-01 2000-08-09 Euro Star S.r.l. Dampferzeuger für Reinigungsmaschinen, Bügeleisen, Kaffemaschinen und ähnliche Maschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1580293A (en) * 1925-02-09 1926-04-13 Louis A Fitzer Electrically-operated steam boiler
US4578563A (en) * 1983-10-25 1986-03-25 Taishin Electric Ind. Co., Ltd. Steam generator
EP0638684A1 (de) * 1993-08-06 1995-02-15 Moulinex S.A. Dampferzeuger für Bügeleisen
EP1026306A1 (de) * 1999-02-01 2000-08-09 Euro Star S.r.l. Dampferzeuger für Reinigungsmaschinen, Bügeleisen, Kaffemaschinen und ähnliche Maschinen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1795644A1 (de) * 2003-08-13 2007-06-13 Lg Electronics Inc. Trommelwaschmaschine und Dampferzeuger dafür
US7591154B2 (en) 2003-08-13 2009-09-22 Lg Electronics Inc. Drum type washing machine and vapor generator thereof

Also Published As

Publication number Publication date
ES2202249T3 (es) 2004-04-01
DE60100426T2 (de) 2004-05-19
DE60100426D1 (de) 2003-08-07
EP1199515B1 (de) 2003-07-02
ATE244379T1 (de) 2003-07-15
ITPN20000063A1 (it) 2002-04-16

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