EP0963532A1 - Dampferzeuger - Google Patents
DampferzeugerInfo
- Publication number
- EP0963532A1 EP0963532A1 EP98901436A EP98901436A EP0963532A1 EP 0963532 A1 EP0963532 A1 EP 0963532A1 EP 98901436 A EP98901436 A EP 98901436A EP 98901436 A EP98901436 A EP 98901436A EP 0963532 A1 EP0963532 A1 EP 0963532A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tank
- cover
- generator according
- fact
- steam generator
- 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
Links
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
- F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
- F22B1/285—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs the water being fed by a pump to the reservoirs
Definitions
- the present invention relates to a steam generator and more particularly a steam generator for household appliances such as irons or steam cleaners for example.
- steam generators for domestic appliances comprise a hermetically sealed container, provided with a water inlet and a steam outlet as well as a safety valve, in which a heating body is arranged.
- These steam generators have drawbacks in particular due to the fact that the heating body in contact with the water builds up and is difficult to descale and that it is necessary to provide sealed passages through the wall of the container for feeding. electric heating element.
- the present invention relates to a steam generator tending to obviate the aforementioned drawbacks.
- the object of the present invention is the cheap production of a reliable, durable, easily scalable and high quality steam generator, in particular as regards its life and its possibilities of adjusting the power delivered to the heating body.
- Another object of the present invention is to prevent the heating body from being in contact with the water contained in the sealed container.
- the present steam generator is distinguished by the characteristics listed in claim 1.
- the accompanying drawing illustrates schematically and by way of example an embodiment of the steam generator according to the invention.
- Figure 1 is a perspective view of the steam generator.
- Figure 2 is an enlarged end view of the steam generator.
- Figure 3 is an enlarged longitudinal sectional view of the steam generator.
- Figure 4 is a side elevational view of the steam generator tank.
- FIG. 5 is a view from A of the tank illustrated in FIG. 4.
- Figure 6 is a perspective view of the steam generator tank.
- Figures 7 and 8 illustrate in perspective an assembly formed by the tank and two heating bodies.
- Figures 9 to 12 illustrate all of Figures 7 and 8 in bottom plan, in elevation and at the bottom end side respectively opening side of the tank.
- Figure 13 illustrates in perspective the solid aluminum body of the steam generator.
- Figure 14 is a longitudinal section of this solid aluminum body.
- Figure 15 is an end view, seen from the bottom, of the solid aluminum body.
- Figure 16 is a perspective view of the aluminum flange or cover.
- FIG. 17 is a plan view of this cover, and FIG. 18 is a section along the line AA in FIG. 17.
- the steam generator illustrated comprises a massive hollow body of injected aluminum 1 in the mass of which one or two heating bodies 2,3 are embedded, the ends of which have to be connected to a source of electrical energy emerging from the open front face of the body 1 in a part of it forming a circular flange 4.
- This flange 4 of the body 1 also comprises means for fixing a cover 5, here studs 6 embedded in the mass of the body 1.
- the fixing means can be constituted by tapped holes cooperating with screws or by non-tapped holes cooperating with self-tapping screws.
- This solid body 1 made of injected cast aluminum is hooped by its method of manufacture on a tank 7 made of stamped stainless steel.
- This tank 7 has a circular or oval flared opening slightly set back from the front face of the flange 4 and recesses allowing the positioning of the heating bodies 2,3 before injection of the mass of aluminum.
- the tank 7 and the heating bodies 2,3 are positioned as well as the studs 6, in their relative position illustrated in FIGS. 8 to 11, on the movable core of a mold.
- This two-part mold is then closed on the core and the cast aluminum is injected into said mold.
- the cast aluminum completely surrounds the bodies of heats 2,3 and ensures by shrinking or cooling its shrinking on the tank 7 in stainless steel.
- We must of course preheat the tank 7 before the injection of the cast aluminum and determine the dimensions of both the mold and this tank 7 so that the finished assembly ensures perfect plating of the tank 7 against the mass of aluminum of the body 1 at the operating temperature of the steam generator, approximately 140 ° C., while avoiding excessive tension on the tank 7 made of stainless steel.
- One thus obtains a monolithic assembly allowing excellent heat transmission and total protection of the heating bodies 2,3.
- the presence of the tank 7 in stainless steel gives this steam generator a much better quality, longevity and possibilities for descaling.
- the tank 7 made of stainless steel can be omitted, the water then being in contact with the mass of cast aluminum injected.
- the female part of the production mold is identical to the previous one, only the core is slightly larger.
- the same mold can be used for the two variants, economic and luxury, of the steam generator which makes it possible to reduce the cost thereof.
- the heating elements 2,3 are completely embedded in the body 1 made of cast aluminum and that they are therefore never in contact with water.
- the sealing of the tank 7 is done, as will be seen below, on a diameter smaller than that on which the ends of the emerging heating bodies 2,3 are arranged. of the flange 4, there are no watertight passages to be provided for these heating bodies which also reduces the price and increases the reliability of the steam generator.
- the body 1 made of solid aluminum also comprises housings, coming from injection, 8, 9 intended to receive temperature sensors which are connected to the control of the steam generator.
- This body 1 is covered with an insulating sleeve (not shown) to prevent heat loss and users to burn themselves.
- the tank 7 made of stainless steel is slightly eccentric relative to the body 1 of injected aluminum. In this way, the mass of aluminum in the body 1 is greater around the heating elements 2, 3 which provides greater thermal inertia favorable to the regulation of the steam generator.
- This steam generator also has a cover 10 of injected aluminum or stainless steel which adjusts to the free face of the flange 4 of the body 1 and is fixed to the latter by means of bolts 11 screwed onto the studs 6 of the body 1
- the inner face of this cover 10 has a circular groove 12 intended to receive an O-ring seal (not shown).
- the O-ring seal bears on the one hand in the groove 12 of the cover but on the other hand on the flange 4 made of aluminum or on the flared edge opening of the stainless steel tank 7 when the latter is present. This ensures a minimum distance between the steel of the tank 7 and the aluminum of the cover 10 to avoid any effect of battery while ensuring the tightness of the assembly. This also makes it possible to avoid any stack effect between the tank 7 and the body 1.
- the cover 10 Apart from the five holes uniformly distributed around its periphery, giving passage to the studs 6, the cover 10 also comprises several threaded holes intended for connections or for fixing control or safety elements.
- the bore 13 is intended to be connected to a water outlet conduit during a descaling cycle of the tank.
- the hole 14 is intended to be connected to a cold water inlet pump.
- This bore is provided with a tube (not illustrated), generally a flexible silicone tube, extending inside the tank (7) up to near the bottom of the latter.
- the descaling mixture penetrating through this tube necessarily scans the entire internal surface of the tank 7 before being evacuated by the bore 13.
- the bore 15 is intended to be connected to a conduit evacuation of the steam produced.
- the hole 16 is used to fix a safety valve limiting the maximum pressure inside the steam generator.
- the hole 17 serves to fix a relief valve allowing the penetration of air inside the steam generator when the pressure inside it falls below a preset value, generally 1 bar.
- the central bore 18 is used for fixing a probe detecting the water level in the steam generator by means of an angular sensor introduced into a float. Such a sensor mechanical is reliable and resistant to scaling.
- this cover 10 also has holes 19,20 giving passage to the ends of the heating bodies 2,3 to be electrically connected.
- Another advantage of the generator described is its versatility. When used with a steam cleaner which requires a high flow of water vapor, the two heating bodies 2, 3 are supplied to obtain maximum heating power. On the other hand, if the generator is used with an iron or a suction motor requiring a lesser flow of steam, only one of the heating bodies is supplied. In this case, using a supply device identical to that used by the steam cleaner, the remaining power available can be used to heat the iron.
- this steam generator allows its reliability, its optimization and its versatility. Indeed, due to the fact that the heating bodies are embedded in the mass of the body, they are no longer subjected to scaling. In addition, the electrical supply of these heating bodies no longer requires a sealed passage. Finally, the mass of the injected aluminum body is greater in the region where the heaters are embedded, which increases the thermal inertia and facilitates the regulation of the heaters.
- the economical and luxury execution with a stainless steel tank 7 can be manufactured with the same female part of the mold, which limits tooling costs. All the waterproof outlets are grouped together on the cover, thus simplifying the construction of the body and the tank.
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Detergent Compositions (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Irons (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Cookers (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH32497 | 1997-02-14 | ||
CH32497 | 1997-02-14 | ||
PCT/IB1998/000171 WO1998036215A1 (fr) | 1997-02-14 | 1998-02-12 | Generateur de vapeur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0963532A1 true EP0963532A1 (de) | 1999-12-15 |
EP0963532B1 EP0963532B1 (de) | 2001-09-26 |
Family
ID=4184426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98901436A Expired - Lifetime EP0963532B1 (de) | 1997-02-14 | 1998-02-12 | Dampferzeuger |
Country Status (7)
Country | Link |
---|---|
US (1) | US6243535B1 (de) |
EP (1) | EP0963532B1 (de) |
JP (1) | JP2001511676A (de) |
AT (1) | ATE206193T1 (de) |
AU (1) | AU5776898A (de) |
DE (1) | DE69801809T2 (de) |
WO (1) | WO1998036215A1 (de) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6711840B1 (en) * | 2001-11-13 | 2004-03-30 | Euro-Pro Operating, Llc | Combined steam cleaner and steam iron apparatus and circuit |
US6866751B2 (en) * | 2002-03-21 | 2005-03-15 | Hitachi Global Storage Technologies Netherlands B.V. | Method of setting self-pinned AP pinned layers with a canted field |
US20040234255A1 (en) * | 2003-03-07 | 2004-11-25 | Yui George M. | Water heating vessel |
US20050019028A1 (en) * | 2003-07-25 | 2005-01-27 | Karl-Heinz Kuebler | Fluid heater with integral heater elements |
KR100540749B1 (ko) * | 2003-08-13 | 2006-01-10 | 엘지전자 주식회사 | 드럼세탁기용 증기발생장치 |
US7817907B2 (en) * | 2004-03-05 | 2010-10-19 | George Yui | Water heating vessel |
GB2415438A (en) * | 2004-06-22 | 2005-12-28 | Kenwood Marks Ltd | Steaming apparatus for home use |
US20060188239A1 (en) * | 2004-12-22 | 2006-08-24 | Carlucci Vito J | Garment steamer with standby heater |
DE102005012219A1 (de) * | 2005-03-15 | 2006-09-21 | Rational Ag | Beheizbares Gehäuse, Vorrichtung zur Erzeugung von Dampf und Gargerät |
KR100753506B1 (ko) * | 2005-03-17 | 2007-08-31 | 엘지전자 주식회사 | 세탁기용 증기발생장치의 수위감지센서 |
AU2006225449B2 (en) * | 2005-03-25 | 2009-05-21 | Lg Electronics Inc. | Steam generator, and laundry device and method thereof |
US7051462B1 (en) | 2005-07-08 | 2006-05-30 | Euro-Pro Operating, Llc | Combined steam cleaner and steam iron apparatus and circuit |
US8616157B2 (en) | 2005-12-19 | 2013-12-31 | Koninklijke Philips N.V. | Apparatus and method for generating steam |
US8933372B2 (en) | 2006-06-29 | 2015-01-13 | Dynacurrent Technologies, Inc. | Engine pre-heater system |
CN101191612A (zh) * | 2006-11-20 | 2008-06-04 | 游图明 | 用于家用电器的蒸汽形成方法及装置 |
EP2140199A4 (de) * | 2007-04-19 | 2013-08-14 | Pertti Harvia | Dampferzeuger, verfahren zum betrieb eines dampferzeugers und behälter eines dampferzeugers |
KR20090013917A (ko) * | 2007-08-03 | 2009-02-06 | 엘지전자 주식회사 | 스팀발생장치 |
CA2639413A1 (en) * | 2008-09-11 | 2010-03-11 | Ray King | Closed loop heating system |
GB201017461D0 (en) | 2010-10-15 | 2010-12-01 | Strix Ltd | Electric steam generation |
US9091457B2 (en) | 2011-03-04 | 2015-07-28 | Dynacurrent Technologies, Inc. | Electro-thermal heating system |
CA2733302C (en) * | 2011-03-04 | 2012-08-28 | Ray King | Radiant heating system adapted for interchangeable assembly facilitating replacement of components |
KR101248771B1 (ko) * | 2011-10-24 | 2013-04-03 | 주식회사 쿄류일렉트릭 | 테이블 세척기 |
ITMO20120061A1 (it) * | 2012-03-12 | 2013-09-13 | T P A Impex Spa | Una caldaia per elettrodomestici e per impianti di riscaldamento di acqua per uso domestico ed industriale con produzione di vapore |
CN103672836B (zh) * | 2012-08-31 | 2016-08-24 | 宁波新乐生活电器有限公司 | 一种自动加水汽化锅 |
EP2929242B1 (de) | 2012-12-05 | 2018-10-24 | Kim, No Eul | Elektrodenkessel mit einer elektrodeneinheit |
EP3247939B1 (de) * | 2015-01-23 | 2020-09-30 | Koninklijke Philips N.V. | Dampferzeugungssystem mit abnehmbarer abdeckung |
US10437241B2 (en) | 2016-12-16 | 2019-10-08 | General Electric Company | Systems and methods for generating maintenance packages |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1117228B (de) | 1959-02-21 | 1961-11-16 | Peter Franken | Als Handgeraet ausgebildeter, elektrisch beheizter Dampfapparat, vorzugsweise fuer die Koerper- und Gesundheitspflege |
US4414037A (en) | 1980-04-28 | 1983-11-08 | Max Friedheim | Steam jet cleaning and sterilizing system |
DE3223193A1 (de) | 1982-06-22 | 1983-12-22 | Indimant Industriediamanten GmbH, 2072 Bargteheide | Vorrichtung zum reinigen von oberflaechen mittels dampf |
DE3610235A1 (de) | 1986-03-26 | 1987-10-01 | Ego Elektro Blanc & Fischer | Friteuse |
DE4130447A1 (de) * | 1991-09-13 | 1993-03-25 | Braun Ag | Wasserkessel |
DE4443798C1 (de) * | 1994-12-08 | 1996-03-21 | Kaercher Gmbh & Co Alfred | Dampfreinigungsgerät |
FR2740537B1 (fr) * | 1995-10-31 | 1998-01-16 | Seb Sa | Generateur de vapeur a approvisionnement automatique et procede de mesure du niveau de liquide dans un tel generateur |
US5835680A (en) * | 1996-10-07 | 1998-11-10 | Appliance Development Corp. | Immersion heater and support structure |
-
1998
- 1998-02-12 AU AU57768/98A patent/AU5776898A/en not_active Abandoned
- 1998-02-12 EP EP98901436A patent/EP0963532B1/de not_active Expired - Lifetime
- 1998-02-12 WO PCT/IB1998/000171 patent/WO1998036215A1/fr active IP Right Grant
- 1998-02-12 DE DE69801809T patent/DE69801809T2/de not_active Expired - Fee Related
- 1998-02-12 US US09/367,350 patent/US6243535B1/en not_active Expired - Fee Related
- 1998-02-12 AT AT98901436T patent/ATE206193T1/de active
- 1998-02-12 JP JP53551198A patent/JP2001511676A/ja not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO9836215A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2001511676A (ja) | 2001-08-14 |
AU5776898A (en) | 1998-09-08 |
US6243535B1 (en) | 2001-06-05 |
ATE206193T1 (de) | 2001-10-15 |
WO1998036215A1 (fr) | 1998-08-20 |
DE69801809T2 (de) | 2002-04-11 |
EP0963532B1 (de) | 2001-09-26 |
DE69801809D1 (de) | 2001-10-31 |
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