EP1201933B1 - Boîtier de pompe avec réchauffeur du fluide intégré - Google Patents

Boîtier de pompe avec réchauffeur du fluide intégré Download PDF

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Publication number
EP1201933B1
EP1201933B1 EP01124646A EP01124646A EP1201933B1 EP 1201933 B1 EP1201933 B1 EP 1201933B1 EP 01124646 A EP01124646 A EP 01124646A EP 01124646 A EP01124646 A EP 01124646A EP 1201933 B1 EP1201933 B1 EP 1201933B1
Authority
EP
European Patent Office
Prior art keywords
pump according
ring
pump
heating device
casing
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.)
Revoked
Application number
EP01124646A
Other languages
German (de)
English (en)
Other versions
EP1201933A3 (fr
EP1201933A2 (fr
Inventor
Martin Kleeman
Helmut Nauerth
Klaus-Jürgen Uhrner
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.)
Eichenauer Heizelemente GmbH and Co KG
Original Assignee
Eichenauer Heizelemente GmbH and Co KG
Kaco GmbH and Co KG
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
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Priority claimed from DE20018182U external-priority patent/DE20018182U1/de
Priority claimed from DE20107363U external-priority patent/DE20107363U1/de
Application filed by Eichenauer Heizelemente GmbH and Co KG, Kaco GmbH and Co KG filed Critical Eichenauer Heizelemente GmbH and Co KG
Publication of EP1201933A2 publication Critical patent/EP1201933A2/fr
Publication of EP1201933A3 publication Critical patent/EP1201933A3/fr
Application granted granted Critical
Publication of EP1201933B1 publication Critical patent/EP1201933B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion heaters
    • 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
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
    • 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
    • A47L15/4285—Water-heater arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps

Definitions

  • the invention relates to a pump according to the preamble of claim 1.
  • DE 199 03 951 A1 describes a pump for washing machines, dishwashers or the like with a housing and a heater for continuous liquid heating, the latter arranged on the outside of the pump housing heater and disposed between the housing wall of the pump and the heater heat distribution plate for uniform distribution having the heat generated by the heater on the pump housing.
  • a uniform heating of the water while avoiding the aforementioned disadvantages is achieved;
  • the entire pump housing consists of reasons of thermal conductivity of metal and therefore requires both relatively high material and manufacturing costs.
  • DE 197 36 794 C2 shows a circulating pump for a dishwasher, in which da pump housing is formed by a tubular heating element embedded heating coil.
  • the upper end of the radiator is circumferentially from a bearing neck of a bearing element for a spray arm includes, while the lower end side freely ends at a distance to a bearing plate, which is penetrated only by connections of the radiator.
  • the entire structure is complicated and expensive.
  • DE 29 38 883 A1 shows in a rinsing a liquid-tight capsule of the housing for a motor for driving a bottom flange-mounted on the engine pump.
  • This serves to convey rinsing liquid, which is supplied from the rinsing container via a discharge nozzle to a spray arm and is sprayed by the latter via into the rinsing container introduced, to be cleaned dishes.
  • a tubular heating element is arranged on the outside in order to heat the liquid in the washing compartment.
  • WO / 0035335 shows a heater for heating the rinsing liquid in a dishwasher with a connected to a washing liquid connected, arranged outside the washing container pump, which consists essentially of a motor and an impeller arranged in a pump housing, wherein the heating means heating means on the pump housing in having thermally conductive contact with the interior of the pump housing.
  • the invention has for its object to provide a simple and inexpensive pump of the type mentioned, which ensures a uniform continuous liquid heating while avoiding the aforementioned disadvantages.
  • this object is achieved in a pump of the type mentioned above in that on one end side of the heater, a bottom (3a) and on another end face of the heater (4) has a lid (3b) of the housing (2) are arranged sealingly.
  • the heat is not supplied by indirect heating of the pump housing via heat distribution plates, but the heater forms part of the housing of the pump, while the remaining part of the housing - bottom and lid - preferably made of plastic, which is inexpensive and in particular inexpensive is processable.
  • These housing parts may in this case consist of any known thermosetting or thermosetting plastics, such as polyolefins (polyethylene, polypropylene, etc.), polyamides, polyesters, polyacetates, polycarbonates, vinyl polymers, polyurethanes or the like or of polymer blends of known plastics, which is one for the Use of the pump have sufficient temperature stability.
  • the heating device is expediently arranged on a region of the housing at which, for fluidic reasons, the formation of a temperature gradient is avoided in the liquid.
  • the heating device is therefore preferably arranged between a bottom and a cover of the housing, wherein it forms a substantially annular jacket wall of the housing.
  • the heating device has a metal ring forming at least part of the side wall of the housing, the ring preferably being made of stainless steel, in particular of stainless steel sheet, or of aluminum.
  • the aluminum ring can be, for example, a cast or an extruded part, in which case the inside is coated.
  • the heating device may also have a ring of thermally conductive plastic forming at least part of the side wall of the housing. In this case, in particular electrically conductive plastics may be provided.
  • the heater has a outside with the ring in contact with thick-film resistor or outside with the ring in contact tubular heater, which at least a partial circumference of the ring is arranged, so this encloses at least partially.
  • the ring advantageously has a tubular heater at least partially receiving bead to set on the one hand the tubular heater safe and durable on the outside of the ring, on the other hand to ensure an increased heat exchange surface between the tubular heater and the ring.
  • a heat distribution plate which preferably consists of aluminum, can also be arranged between the ring and the tubular heater.
  • the ring is made of an electrically conductive plastic
  • the actual heating element e.g. in the form of a tubular heater or a thick-film resistor, also be dispensed with and the plastic ring are electrically heated directly.
  • the ring in the case of a housing made of thermoplastic material may be injected into the housing, it may be cast in the case of a housing made of a thermosetting plastic in the housing. In any case, the ring can be glued to the housing or - optionally with the interposition of seals - be pressed with the housing.
  • the heating device of the pump preferably has a coating on the inside. Furthermore, temperature control devices which are in contact with the heating device can be provided in order to set the desired liquid temperature individually.
  • the pump in a preferred embodiment is a centrifugal pump.
  • the invention provides in a preferred embodiment, that a holding device embraces approaches of the housing parts.
  • a leakage of the connection is reliably avoided, especially if the ring is a metal part as a heating element and the other parts of the housing made of plastic, since then by the heating and cooling processes voltages between the heater and dam plastic housing due to the different expansion coefficients
  • the materials may occur that could lead to leaks in the connection, at least for a long time.
  • connection of heater and housing is loaded in two directions. These forces are also absorbed and compensated by the invention provided and arranged holding device. This also makes it possible that the compounds mentioned can be solved nondestructively, i. It is possible to replace defective parts. Furthermore, the holding device can be used to press an excess temperature fuse against the heater, so that an additional separate mounting structure is not necessary for this.
  • the mentioned embodiment thus forms a plastic housing and heating efficiently to be produced, the internal pressure of the pump housing reliably resisting mounting option, despite the different expansion coefficients remain tight in the long term and where an excess temperature fuse can be structurally easily integrated.
  • the overarching holding device can be produced either by the heating ring itself or by an additional connection device. If the overarching holding device is produced by additional devices, this has the advantage that at the same time the attachment for the required over-temperature protection can be included in the holding device.
  • the intermediate layer of a seal has the advantage that the elasticity of the seal can compensate expansion coefficients and thus creates a tight connection in the long run.
  • projections are formed which, on their side facing away from the heating device, here referred to as the outer side of the projection, receive the fastening construction.
  • the pressure can be reliably counteracted perpendicular to the housing bottom and cover.
  • a groove may be formed, in which the connecting element is optionally clamped, pressed, pinched or snapped and thus secures the heating element against the vertical pressure.
  • the overarching fasteners are designed as a clamping bracket.
  • the clamping bracket for example made of spring steel, are spring loaded at several points in the not necessarily circumferential groove in this case snapped on both sides of the outside of the approach.
  • On the inside of the approach is a circumferential annular groove, the heater with an intermediate layer a seal absorbs.
  • a connection is created which counteracts both the lateral, as well as the vertical pressure on the heating element.
  • the attachment of the excess temperature fuse can also be implemented particularly advantageously. In this case, the excess temperature fuse between the heater and the clamping bracket is elastically clamped, optionally on a bent out of this tab.
  • a plastic molding which may consist of several segments.
  • This plastic molded part can be produced inexpensively as an injection molded part. At its ends hook-shaped projections are formed, which engage gegen Dermat in the wall of an outside groove of the approach to the plastic housing and get caught. Due to the elasticity of the plastic thus a clip connection is made.
  • the plastic connection part is further formed so that it simultaneously presses the heater with the interposition of a seal against the housing bottom and lid on the inside of the approach.
  • the connecting part reliably absorbs the pressure on the heating device in both directions.
  • this holder can be integrally formed in a simple manner, a holder for the over-temperature fuse and this thus come to rest between holding device and heater.
  • the segments may also be formed so that they completely surround the heater on the outside.
  • the heater is mechanically and electrically protected, another housing part to protect the heater can thus be omitted.
  • a ring of the heater itself is used as a cross-holding device between the housing bottom and lid.
  • the ring is not flat in its cross-section, but in its edge region is formed on both sides of a U-shaped projection, the contour of the approach of the plastic housing with the interposition of a seal surrounds.
  • the U-shaped projection of the heater is squeezed on its outside in an outside groove of the housing parts or crimped and secured against the lateral and vertical pressure.
  • the excess temperature fuse can be fixed to the heating element in this case.
  • the pump 1 shown in FIGS. 1 and 2 has a three-part housing 2 with a bottom 3a and a lid 3b made of plastic and a heating device 4, which forms the jacket wall of the housing 2 with a cylindrical ring 5.
  • the ring 5 is made of a thermally conductive material, e.g. made of stainless steel.
  • the pump 1 is designed in the manner of a centrifugal pump and has a provided with blades 6, rotating impeller 7, which is driven by a centrally mounted in the housing bottom 3a pump shaft 8. While a suction line 9 opening from above into the housing 2 of the pump 1 is provided for supplying the delivery fluid, the housing 2 has a laterally arranged diffuser 10 for discharging the delivery fluid.
  • annular groove 11 is arranged in which the ring 5 of the heater 4 is received.
  • the ring 5 may e.g. glued into the respective annular groove 11 or be pressed with this with the interposition of seals (Fig. 3).
  • the ring 5 may also be injected or cast into the housing bottom 3a and / or the housing cover 3b depending on the nature of its plastic material.
  • the ring 5 forming the central portion of the side wall of the housing 2 is on the outside with a part of the circumference of the ring 5 - in the illustrated embodiment around a peripheral portion of the ring 5 of about 300 ° (Fig. 1) - arranged tubular heater 12 connected, for example, soldered to this.
  • tubular heater 12 connected, for example, soldered to this.
  • a substantially central, inwardly directed bead 13 which receives the tubular heater 12.
  • the tubular heater 12 with the ring 5 connecting heat distribution plates may be provided.
  • a temperature control device (FIGS. 3 to 5) may be attached to the outside of the ring 5.
  • the internal pressure acting in the housing pushes u.a. in the axial direction on the housing bottom 3a and cover 3b, so it loads the connection between these parts and the ring 5 and has a tendency to solve them.
  • a holding device in the form of an overarching tensioning bow 20 is provided.
  • the clamping bracket 20 engages over the projections 21 and engages from the outside axially into the grooves 22 thereof (FIG. 3). As a result, it counteracts the axial force caused by the internal pressure acting on the connections of ring 5 with housing bottom 3a and cover 3b and thus secures these connections.
  • the pump 1 is supplied centrally with the delivery liquid via the suction line 9 and the liquid is then conveyed by means of the impeller 7 (not shown in FIG. 2) in a circular path along the inner circumference of the ring heated by the tubular heating element 12 5 (directional arrow 14) before it leaves the pump 1 via the diffuser 10.
  • the impeller 7 not shown in FIG. 2
  • the liquid is heated rapidly due to the turbulences prevailing there, the formation of a temperature gradient avoided in the liquid and thus a high efficiency is achieved.
  • the edge region of the pump having the heating device 4 and the clamping yoke 20 is enlarged and shown in greater detail in FIG. 3. It can be seen that the ring 5 is inserted with the interposition of a seal in the inner annular groove 11. On the clamping bracket 20, a tab 30 is bent out. An excess temperature fuse 19 is clamped between the heating ring 5 and this tab 30. In addition, the excess temperature fuse 19 can still be glued (not shown in Fig. 1 for the sake of clarity).
  • a holding device is formed by the ring 5 itself.
  • U-shaped annular projections 31 which engage over the lugs 21 of housing bottom 3a and cover 3b formed.
  • An annular recess 33 on the inside of the lugs 21 receives a ring seal 34.
  • the groove 22 on the approach outside of the lugs 21 may either be already formed or only by the crimping or crimping of the free ends of the annular projections 31 of the ring 5 are formed.
  • a spring element 36 which is fixed, for example, on the housing cover 3b, holds an excess temperature fuse 19 to the heater 4 by clamping, which may optionally be additionally fixed with an adhesive.
  • the holding device is formed by one or more segments of a plastic molded part 40. At the ends of the molding 40 hook-shaped undercut lugs 43 are formed. At the same time, lugs 46 are also formed on the outsides of the lugs 21 of the housing bottom 3a and lids 3b. Both parts engage each other in such a way that the hook-like noses 43 of the plastic molding 40, the hook 46 and engage behind. Due to the elasticity of the plastic so a clip connection can be made. Furthermore, the projection 21 has in its inner region a radially outwardly open annular groove 42 which receives a seal 45.
  • a significant advantage of the invention thus lies firstly in a simple and cost-effective design of the housing bottom 3a and the housing cover 3b made of plastic, on the other hand there is a high flexibility in the use of the respective heating element of the heater 4, e.g. Instead of the tubular heater 12, a thick-film resistor or any other heating elements may be provided without changing the arrangement or structure of the housing 2. Due to the arrangement of the heater 4 on the annular side wall of the pump housing 2 in the region of the impeller 7, a high efficiency of the heat transfer to the pumped liquid is further ensured.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cookers (AREA)

Claims (34)

  1. Pompe (1), en particulier pour lave-linge, lave-vaisselle ou similaires, comprenant un boîtier de pompe (2) et un dispositif de chauffage (4) pour le réchauffement continu d'un liquide traversant la pompe, en particulier de l'eau, le dispositif de chauffage étant conformé en paroi enveloppe du boîtier de pompe (2), caractérisée en ce que sur une face frontale du dispositif de chauffage est disposé à étanchéité un fond (3a) et que sur une autre face frontale du dispositif de chauffage (4) est disposé à étanchéité un couvercle (3b) du boîtier de pompe.
  2. Pompe selon la revendication 1, caractérisée en ce que le dispositif de chauffage (4) présente un flan annulaire (5) métallique formant au moins une partie de la paroi enveloppe.
  3. Pompe selon la revendication 2, caractérisée en ce que le flan annulaire (5) est en acier inoxydable, en particulier en tôle d'acier inoxydable.
  4. Pompe selon la revendication 2, caractérisée en ce que le flan annulaire (5) est en aluminium.
  5. Pompe selon la revendication 4, caractérisée en ce que le flan annulaire en aluminium est une pièce moulée.
  6. Pompe selon la revendication 4, caractérisée en ce que le flan annulaire en aluminium est une pièce extrudée.
  7. Pompe selon la revendication 1, caractérisée en ce que le dispositif de chauffage (4) présente un anneau (5) en matière plastique thermoconductrice constituant au moins une partie de la paroi enveloppe du boîtier (2).
  8. Pompe selon la revendication 7, caractérisée en ce que le flan annulaire (5) consiste en une matière plastique électriquement conductrice.
  9. Pompe selon l'une quelconque des revendications 2 à 8, caractérisée en ce que le dispositif de chauffage (4) présente une résistance à couche épaisse en contact par sa face externe avec le flan annulaire (5).
  10. Pompe selon l'une quelconque des revendications 2 à 8, caractérisée en ce que le dispositif de chauffage (4) présente un corps chauffant tubulaire (12) en contact avec le flan annulaire (5) par sa face externe.
  11. Pompe selon la revendication 9 ou 10, caractérisée en ce que le corps chauffant tubulaire (12) ou la résistance à couche épaisse est disposé autour d'au moins une partie de la circonférence du flan annulaire (5).
  12. Pompe selon la revendication 10 ou 11, caractérisée en ce que le flan annulaire (5) présente une moulure (13) logeant au moins partiellement le corps chauffant tubulaire (12).
  13. Pompe selon la revendication 10 ou 11, caractérisée en ce qu'une plaque de dissipation de la chaleur est disposée entre le flan annulaire (5) et le corps chauffant tubulaire (12).
  14. Pompe selon la revendication 13, caractérisée en ce que la plaque de dissipation de la chaleur est en aluminium.
  15. Pompe selon l'une quelconque des revendications 2 à 14, caractérisée en ce que le fond et le couvercle (3a, 3b) consistent en une matière synthétique thermoplastique et en ce que le flan annulaire (5) est injecté en tant que pièce du boîtier (2, 3a, 3b).
  16. Pompe selon l'une quelconque des revendications 4 à 16, caractérisée en ce que le fond et le couvercle (3a, 3b) sont en une matière synthétique duroplastique et en ce que le flan annulaire (5) est coulé dans le boîtier (2).
  17. Pompe selon l'une quelconque des revendications 2 à 14, caractérisée en ce que le flan annulaire (5) est collé au fond et au couvercle (3a, 3b).
  18. Pompe selon l'une quelconque des revendications 2 à 14, caractérisée en ce que le flan annulaire (5) est pressé avec le fond et le couvercle (3a, 3b).
  19. Pompe selon l'une quelconque des revendications 1 à 18, caractérisée en ce que l'on prévoit un dispositif de réglage de la température en contact avec le dispositif de chauffage (4).
  20. Pompe selon l'une quelconque des revendications 1 à 19, caractérisée en ce que la pompe (1) est une pompe de circulation.
  21. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un dispositif de maintien (20, 31, 40) enserre des saillies (21) du fond (3a) et du couvercle (3b) du boîtier (2).
  22. Pompe selon la revendication 21, caractérisée en ce que le dispositif de maintien présente des étriers de tension (20), de préférence en acier élastique.
  23. Pompe selon la revendication 21 ou 22, caractérisée en ce que les étriers de tension (20) viennent en prise dans des gorges (22) sur la face externe des saillies (21) des parties de boîtier adjacentes (3, 3b).
  24. Pompe selon l'une quelconque des revendications 21 à 23, caractérisée en ce qu'une gorge annulaire (11) est formée sur les parois internes des saillies des parties de boîtier adjacentes (3a, 3b) pour loger le dispositif de chauffage (4) avec interposition d'un joint (24).
  25. Pompe selon l'une quelconque des revendications 21 à 24, caractérisée en ce que l'on forme une languette (30) par courbure dans un étrier de tension (20), permettant de coincer un fusible (19) entre le dispositif de chauffage (4) et l'étrier de tension (20).
  26. Pompe selon la revendication 21, caractérisée en ce que le dispositif de maintien est formé de plusieurs pièces moulées en plastique (40).
  27. Pompe selon la revendication 21 ou 26, caractérisée en ce que des ergots (43) en forme de crochet, venant en prise avec des crochets (46) diamétralement opposés disposés sur la face externe des saillies des parties de boîtier adjacentes (3a, 3b), sont formés aux extrémités des pièces moulées en plastique (40).
  28. Pompe selon l'une quelconque des revendications 21, 26 ou 27, caractérisée en ce que le dispositif de chauffage (4) est fixé bilatéralement entre une gorge annulaire (42) logeant un joint (45) de la face interne de la saillie des parties de boîtier adjacentes (3a, 3b) et des ergots de tension (44) annulaires de la pièce moulée en plastique (40).
  29. Pompe selon l'une quelconque des revendications 21, 26 ou 27, caractérisée en ce qu'une bride de support (50) pour le fusible (19) est formée sur au moins une pièce moulée en plastique (40) de telle façon que le fusible se trouve en contact élastique avec le dispositif de chauffage (4).
  30. Pompe selon la revendication 21, caractérisée en ce que le dispositif de maintien est conformé sur le dispositif de chauffage (4).
  31. Pompe selon l'une quelconque des revendications 30, caractérisée en ce que des saillies (31) en forme de U sont formées bilatéralement sur le dispositif de chauffage (4), dans lesquelles viennent en prise les saillies (21) des parties de boîtier (3a, 3b) adjacentes.
  32. Pompe selon l'une quelconque des revendications 21, 30 ou 31, caractérisée en ce qu'entre les saillies en forme de U (31) et la saillie (21) prend appui un joint (34).
  33. Pompe selon l'une quelconque des revendications 21, 30 à 32, caractérisée en ce que les saillies (31) en forme de U et la saillie (21) sont reliées de manière périmétrique par enserrement ou sertissage.
  34. Pompe selon l'une quelconque des revendications 21, 30 à 33, caractérisée en ce qu'un étrier de serrage (36) est fixé à une partie de boîtier adjacente (3b) pour qu'un fusible (19) soit maintenu de manière élastique entre l'étrier de serrage (36) et le dispositif de chauffage (4).
EP01124646A 2000-10-25 2001-10-16 Boîtier de pompe avec réchauffeur du fluide intégré Revoked EP1201933B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20018182U 2000-10-25
DE20018182U DE20018182U1 (de) 2000-10-25 2000-10-25 Pumpe mit einem beheizbaren Gehäuse
DE20107363U 2001-04-27
DE20107363U DE20107363U1 (de) 2001-04-27 2001-04-27 Pumpe mit einem beheizbaren Gehäuse

Publications (3)

Publication Number Publication Date
EP1201933A2 EP1201933A2 (fr) 2002-05-02
EP1201933A3 EP1201933A3 (fr) 2004-03-10
EP1201933B1 true EP1201933B1 (fr) 2006-03-08

Family

ID=26056589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01124646A Revoked EP1201933B1 (fr) 2000-10-25 2001-10-16 Boîtier de pompe avec réchauffeur du fluide intégré

Country Status (3)

Country Link
US (1) US6736598B2 (fr)
EP (1) EP1201933B1 (fr)
DE (1) DE50109139D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
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DE102009052019A1 (de) 2008-11-13 2010-05-27 Eichenauer Heizelemente Gmbh & Co. Kg Beheizbares Pumpengehäuseteil
DE102009052019B4 (de) * 2008-11-13 2017-08-03 Eichenauer Heizelemente Gmbh & Co. Kg Beheizbares Pumpengehäuseteil
DE102009052019C5 (de) * 2008-11-13 2020-02-20 Eichenauer Heizelemente Gmbh & Co. Kg Beheizbares Pumpengehäuseteil
DE102010043727A1 (de) 2010-11-10 2012-05-10 E.G.O. Elektro-Gerätebau GmbH Pumpe
WO2012062839A1 (fr) 2010-11-10 2012-05-18 E.G.O. Elektro-Gerätebau GmbH Pompe

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EP1201933A3 (fr) 2004-03-10
US20020048513A1 (en) 2002-04-25
EP1201933A2 (fr) 2002-05-02
US6736598B2 (en) 2004-05-18

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