EP1483508B1 - Electrical aspirating assembly - Google Patents

Electrical aspirating assembly Download PDF

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Publication number
EP1483508B1
EP1483508B1 EP02717040A EP02717040A EP1483508B1 EP 1483508 B1 EP1483508 B1 EP 1483508B1 EP 02717040 A EP02717040 A EP 02717040A EP 02717040 A EP02717040 A EP 02717040A EP 1483508 B1 EP1483508 B1 EP 1483508B1
Authority
EP
European Patent Office
Prior art keywords
electrical
assembly
cover
aspirating
scroll
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.)
Expired - Lifetime
Application number
EP02717040A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1483508A1 (en
Inventor
Luca Bartoli
Gabriele Sampaolesi
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.)
LN 2 - Srl
Original Assignee
LN 2 - 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
Application filed by LN 2 - Srl filed Critical LN 2 - Srl
Publication of EP1483508A1 publication Critical patent/EP1483508A1/en
Application granted granted Critical
Publication of EP1483508B1 publication Critical patent/EP1483508B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226Fan casings
    • F04D29/424Double entry casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08Centrifugal pumps
    • F04D17/10Centrifugal pumps for compressing or evacuating
    • F04D17/105Centrifugal pumps for compressing or evacuating with double suction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/60Mounting; Assembling; Disassembling
    • F04D29/601Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps

Definitions

  • This patent application for industrial invention relates to an electrical aspirating assembly provided with anchor cover that also acts to convey the air towards the aspiration inlets as specified in the preamble of claim 1.
  • Such an assembly is known e.g. from EP-A-0 846 870.
  • the electrical aspirating assembly of the invention is similar to the ones normally installed in modular kitchen hoods, typically located over the stove, in order to energetically aspirate fumes and odours originated while cooking.
  • electrical aspirating assemblies characterised by high head and capacity, comprising one or more fan wheel side by side, housed in a scroll-shaped casing that also houses the electrical motor, on whose shaft the fan wheels are mounted.
  • the casing has an opposite pair of circular openings representing the two aspiration inlets for the air.
  • the air Upon exiting the fan wheel the air is conveyed into a diverging diffuser duct that ends with the ejection or delivery opening coupled to the duct that ejects the air.
  • the assembly is anchored inside the hood on the delivery opening that is especially provided with external flange, used to anchor the assembly with screws to shelves or brackets that form an integral part of a bearing frame, on which all hood components are fixed, such as for example shell, chimney, filters, lamps with diffuser screens.
  • This anchoring method has been standardised for many years, although it imposes dimensional restrictions in the styling of the hood shell, since the height and depth of the hood must be such as to allow for housing the assembly.
  • the purpose of the invention is to design a new electrical aspirating group of the type illustrated above, characterised by the fact that it can be placed and fixed on a bearing plate, although the assembly has a conventional layout, with the delivery opening facing upwards and the shaft of the electrical motor located horizontally.
  • This purpose has been achieved by the electrical aspirating assembly of the invention, as specified in claim 1.
  • This assembly comprises a bell-shaped cover with a substantially rectangular base edge.
  • the cover only houses the lower part of the scroll-shaped casing of the electrical aspirating assembly, including the two lateral aspiration inlets that are enclosed in an opposite pair of caps, each of them coupled and directly communicating with the lower opening of the cover.
  • the assembly is anchored to the bearing structure on the lower opening that is positioned and fixed on a support plane.
  • the anchor cover indirectly conveys the air towards the aspiration inlets of the assembly that are located in the centre of the scroll-shaped casing and inside the two lateral caps that characterise the shape of the cover.
  • the air is aspirated and passes through the lower opening of the cover, touching the lower wall of the scroll-shaped casing. For this reason the air current is divided into two diverting ascending flows that are conveyed by the caps towards the two aspiration inlets.
  • the assembly according to the invention can therefore be housed above the hood shell, hidden inside the flue, using the same bearing shelf for all components of the hood.
  • the bearing shelf is firmly fixed to the wall, it will be possible to hang the shell of the hood under the shelf and anchor the cover and the flue above the shelf.
  • the structure of the shell is such that the same can be used as bearing element for the other components, it will be possible to fix the cover above the shell.
  • the electrical aspirating assembly (1) of the invention comprises a pair of fan wheels (2) side by side, located in a scroll-shaped casing (3) that also houses the electrical motor (4), on whose shaft the fan wheels are mounted.
  • the casing (3) has an opposite pair of circular openings (3a) representing the two aspiration inlets of the air.
  • the air Upon exiting the fan wheels (2) the air is conveyed into a diverging diffuser duct that ends with the ejection or delivery opening (3b).
  • the assembly (1) is characterised by the fact that it comprises a bell-shaped cover (5) with a substantially rectangular base edge (5a).
  • the cover (5) only houses the lower part of the scroll-shaped casing (3), including the two lateral aspiration inlets (3a), which are enclosed in an opposite pair of caps (5b) that are an integral part of the cover (5); each of the cap (5b) is coupled and directly communicates with the lower opening (5c) of the cover (5).
  • the assembly (1) is anchored to the bearing structure of the hood on the lower opening (5c) that is positioned and fixed on a support plane.
  • the edge (5a) of the opening (5c) is provided with an external flange (5d) used to anchor the assembly with screws to any support plane (P) that can be represented by the shell (6) of the hood, as illustrated in the embodiment shown in Fig. 1, which shows a shell (6) acting as bearing structure for all the elements of the hood, including the flue (7) that houses the assembly (1).
  • the aspirated air current passes through the lower opening (5c) of the cover (5) and touches the lower wall of the scroll-shaped casing (5), in such a way that it is divided into two diverging ascending flows that are conveyed by the caps (5b) towards the two aspiration inlets (3a).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Ventilation (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Organic Insulating Materials (AREA)
  • Massaging Devices (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Developing Agents For Electrophotography (AREA)
EP02717040A 2002-03-05 2002-03-05 Electrical aspirating assembly Expired - Lifetime EP1483508B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2002/000136 WO2003074882A1 (en) 2002-03-05 2002-03-05 Electrical aspirating assembly

Publications (2)

Publication Number Publication Date
EP1483508A1 EP1483508A1 (en) 2004-12-08
EP1483508B1 true EP1483508B1 (en) 2006-07-19

Family

ID=27773188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02717040A Expired - Lifetime EP1483508B1 (en) 2002-03-05 2002-03-05 Electrical aspirating assembly

Country Status (7)

Country Link
EP (1) EP1483508B1 (es)
AT (1) ATE333592T1 (es)
AU (1) AU2002247960A1 (es)
DE (1) DE60213285T2 (es)
ES (1) ES2269663T3 (es)
NO (1) NO20034812D0 (es)
WO (1) WO2003074882A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20100047U1 (it) * 2010-06-24 2011-12-25 Ln 2 Srl Socio Unico Ventilatore centrifugo perfezionato, particolarmente per cappe aspiranti

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058724B (de) * 1956-07-11 1959-06-04 Rox Lufttechnische Geraetebau Elastisch gelagerter Radialventilator fuer lufttechnische Schrank- und Kastengeraete
US3182899A (en) * 1960-06-01 1965-05-11 Whirlpool Co Wall mounted dual fan structure
FR2664539B1 (fr) * 1990-07-11 1994-07-08 Valeo Dispositif de pulseur d'air pour une installation de chauffage-ventilation d'un vehicule automobile.
IT232119Y1 (it) * 1996-12-06 1999-09-10 Bacchiocchi Alberto Gruppo di aspirazione per cappe, forni e simili, avvalentesi di una carcassa formata da due coclee affiancate e distanziate tra loro
US5893705A (en) * 1996-12-13 1999-04-13 General Electric Company Integrated motor and blower apparatus having two back-to-back coupled rotors

Also Published As

Publication number Publication date
WO2003074882A1 (en) 2003-09-12
ES2269663T3 (es) 2007-04-01
AU2002247960A1 (en) 2003-09-16
NO20034812D0 (no) 2003-10-28
ATE333592T1 (de) 2006-08-15
EP1483508A1 (en) 2004-12-08
DE60213285T2 (de) 2007-05-10
DE60213285D1 (de) 2006-08-31

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