EP0924436B1 - Lüftergehäuse - Google Patents

Lüftergehäuse Download PDF

Info

Publication number
EP0924436B1
EP0924436B1 EP98830730A EP98830730A EP0924436B1 EP 0924436 B1 EP0924436 B1 EP 0924436B1 EP 98830730 A EP98830730 A EP 98830730A EP 98830730 A EP98830730 A EP 98830730A EP 0924436 B1 EP0924436 B1 EP 0924436B1
Authority
EP
European Patent Office
Prior art keywords
semi
fan
cast aluminum
bracket
die
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
EP98830730A
Other languages
English (en)
French (fr)
Other versions
EP0924436A2 (de
EP0924436A3 (de
Inventor
Lino Natalini
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 S.R.L.
LN DI NATALINI LINO & C. S.P.A.
Original Assignee
Ln Di Natalini Lino & C - 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 Di Natalini Lino & C - Srl filed Critical Ln Di Natalini Lino & C - Srl
Publication of EP0924436A2 publication Critical patent/EP0924436A2/de
Publication of EP0924436A3 publication Critical patent/EP0924436A3/de
Application granted granted Critical
Publication of EP0924436B1 publication Critical patent/EP0924436B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards

Definitions

  • This patent application refers to a fan for installation in gas boilers with proof combustion, which is provided with a die-cast aluminum casing including a bracket for the support and centering of the motor-rotor assembly.
  • the combustion chamber of the "proof combustion” boilers is hermetically sealed and works in light depression thanks to the suction action of a fan, used to suck in the fumes of the combustion chamber and push them along the flue from which the said fumes are expelled into the air.
  • the fan comprises a centrifuge rotor with cylindrical cage configuration housed inside a spiral composed of two semi-shells that is rigidly fixed to the boiler frame.
  • the motor-rotor assembly is supported on the outside of the back wall of the spiral with the interposition of some anti-vibration rubber collars, used to prevent the assembly vibrations from being integrally transmitted to the spiral and from the spiral to the boiler casing. thus generating annoying noises.
  • bracket used as an additional support for the motor-rotor assembly onto the external side of the back wall of the spiral.
  • the bracket supports the whole weight of the motor-rotor assembiy during the operation of the fan that is fixed to the boiler casing with the driving shaft in perfectly horizontal position.
  • the bracket Since the orientation of the fan on the boiler casing is known in advance, the bracket is located in such a position that, once the fan is installed, the bracket is located on the projection of the barycenter of the motor-rotor assembly, in order to represent a perfectly centered point of support with respect to the barycenter of the motor-rotor assembly above it.
  • the assembling and fixing of the bracket to the fan casing is usually carried out manually. Even if this operation is carried out by specialized workers, it is not possible to guarantee with utmost certainty that all the brackets are positioned exactly in the same position on the fan casing.
  • a fan for gas boilers of the type described above is illustrated in European patent No. EP-A-0596837 wherein the anti-vibration rubber collars that support the motor-rotor assembly are located on a bracket screwed to the external wall of the spiral.
  • French patent No. FR-A-0596837 instead, is described a monoblock die-cast aluminum fan.
  • the purpose of the present invention is to find a solution to guarantee with utmost accuracy and reliability the perfect position of the bracket outside the spiral of the fans that are normally used in proof combustion boilers.
  • the fan according to this invention features an ordinary centrifuge rotor with cylindrical cage configuration - not shown in the enclosed drawings since it is of known structure and does not have anything to do with the present invention - housed inside a spiral composed of two semi-shells (1 and 2).
  • the bottom wall (1 a) of the first semi-shell (1) features a small central hole (1b) for the shaft of the electrical motor (M) that operates the above mentioned rotor, which is screwed onto the external side of the bottom wall (1a) provided with an annular series of drilled indentations (1c) used to fix the support U bolt (C) of the motor-rotor assembly with the interposition of anti-vibration rubber collars (G).
  • the bottom wall (2a) of the second semi-shell (2) features a wide circular window (2b) that represents the suction opening of the fan.
  • the fan casing is obtained by matching the two semi-shells (1 and 2) to obtain a spiral ending with a nozzle of circular delivery (4) obtained half with the semi-shell (1) and half with the semi-shell (2).
  • each semi-shell (1 and 2) is obtained from one die-cast aluminum piece.
  • the external wall of the semi-shell (1) features a bracket (5) obtained from one die-cast piece together with the semi-shell, composed of a small shelf (5a) that projects perpendicularly from the said wall and is tangent to the circumference on which the above mentioned annular series of drilled indentations is distributed.
  • the shelf (5a) is hardened by a lateral pair of triangular pieces and features a central hole (5c) on which the anti-shock rubber (G) is located to support the weight of the motor-rotor assembly, once the fan is instalied inside the boiler.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Centrifugal Separators (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Gas Burners (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Claims (2)

  1. Ventilator für Gasheizkessel mit luftdichter Brennkammer, der mit einem Gehäuse aus Druckgussaluminium jenes Typs versehen ist, der ein Zentrifugenlaufrad besitzt, welches in einer Förderschnecke untergebracht ist, die aus zwei spiegelgleich zusammengefügten Halbschalen (1 und 2) besteht, wobei die Halbschale (2) eine Bodenwand (2a) besitzt, die mit einem großen Rundfenster (2b) versehen ist, durch welches Luft vom Ventilator angesaugt wird, während die Halbschale (1) eine Bodenwand (1a) besitzt, auf welcher ringförmig angebrachte, gelochte Erhebungen (1c) zur Befestigung eines Bügelbolzens (C) zur Halterung der Motoren-Laufradgruppe sowie ein Winkeleisen (5) vorgesehen ist, das aus einer Konsole (5a) besteht, welche senkrecht das der genannten Bodenwand (1a) hervorsteht und den Umkreis berührt, auf dem die ringförmig angebrachten, gelochten Erhebungen (1c) verteilt sind; welcher Ventilator dadurch gekennzeichnet ist, dass die genannten Halbschalen (1 und 2) jeweils einstückig aus Aluminium druckgegossen werden und dass auch das Winkeleisen (5) einstückig mittels Druckguss zusammen mit der Halbschale (1) hergestellt wird.
  2. Ventilator gemäß vorstehendem Anspruch, dadurch gekennzeichnet, dass die Konsole (5a) durch ein Paar seitliche, dreieckige Eckbleche (5b) versteift ist, die mittels Druckguss einstückig zusammen mit dem Winkeleisen (5) hergestellt werden und ein Loch (5c) in der Mitte besitzt.
EP98830730A 1997-12-17 1998-12-03 Lüftergehäuse Expired - Lifetime EP0924436B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMC970027U 1997-12-17
IT1997MC000027U IT238513Y1 (it) 1997-12-17 1997-12-17 Ventilatore per caldaie a gas a combustione stagna, corredato di unacarcassa pressofusa in alluminio incorporante una squadretta di

Publications (3)

Publication Number Publication Date
EP0924436A2 EP0924436A2 (de) 1999-06-23
EP0924436A3 EP0924436A3 (de) 2000-02-23
EP0924436B1 true EP0924436B1 (de) 2004-04-21

Family

ID=11357353

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98830730A Expired - Lifetime EP0924436B1 (de) 1997-12-17 1998-12-03 Lüftergehäuse
EP98830731A Withdrawn EP0924437A3 (de) 1997-12-17 1998-12-03 Lüftergehäuse mit Kondensatansammlung und Ableitung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP98830731A Withdrawn EP0924437A3 (de) 1997-12-17 1998-12-03 Lüftergehäuse mit Kondensatansammlung und Ableitung

Country Status (3)

Country Link
EP (2) EP0924436B1 (de)
DE (1) DE69823318T2 (de)
IT (1) IT238513Y1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6193463B1 (en) * 1999-06-30 2001-02-27 Alliedsignal, Inc. Die cast compressor housing for centrifugal compressors with a true volute shape
DE10204037C5 (de) * 2002-02-01 2009-07-23 Ebm-Papst Landshut Gmbh Radialgebläse mit Elektromotor
JP2005315236A (ja) * 2004-04-30 2005-11-10 Nidec Shibaura Corp 送風機
JP2014092149A (ja) * 2012-11-07 2014-05-19 Nippon Densan Corp 遠心ファン、ハウジング部品鋳造体およびハウジング部品製造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446435A1 (de) * 1984-12-20 1986-07-03 Wolfgang 6630 Saarlouis Arweiler Rohr zur be- und entlueftung
DE3523223A1 (de) * 1985-06-28 1987-01-02 Sueddeutsche Kuehler Behr Als motorhalter ausgebildete luefterzarge
US4899726A (en) * 1988-09-12 1990-02-13 Carrier Corporation Furnace inducer outlet elbow
US4892045A (en) * 1988-09-22 1990-01-09 Snyder General Corporation Condensate drain system
IT1265782B1 (it) * 1992-10-28 1996-12-02 Fime Fab It Motor Elett Supporto baricentrico per l'equilibratura del gruppo motore-girante installato sulle caldaie a camera di combustione stagna
DE29608984U1 (de) * 1995-05-15 1996-07-04 Joh. Vaillant Gmbh U. Co, 42859 Remscheid Heizgerät
US5620302A (en) * 1995-08-31 1997-04-15 Fasco Industries, Inc. Dynamic condensate evacuator for high efficiency gas furnaces

Also Published As

Publication number Publication date
ITMC970027U1 (it) 1999-06-17
IT238513Y1 (it) 2000-11-13
EP0924436A2 (de) 1999-06-23
DE69823318D1 (de) 2004-05-27
EP0924437A2 (de) 1999-06-23
DE69823318T2 (de) 2005-05-04
EP0924437A3 (de) 2000-02-23
EP0924436A3 (de) 2000-02-23

Similar Documents

Publication Publication Date Title
KR870010322A (ko) 전동송풍기
US5810322A (en) Apparatus for mounting a compressor
KR950019234A (ko) 캔드모터펌프
EP1135610A1 (de) Flüssigkeitspumpen
US3145910A (en) Spring mount for fan motor of ventilating equipment
EP0924436B1 (de) Lüftergehäuse
MXPA02008537A (es) Ventilador que tiene aparato a prueba de polvo.
DK1795754T3 (en) Universal flange.
CA2354805C (en) Inducer fan motor assembly
SE8605486L (sv) Takflekt
JP2005264882A (ja) 送風機
US10704566B2 (en) Connector unit for a fan
KR19990072843A (ko) 침지식펌프
KR960041756A (ko) 모터내장형 송풍기의 케이싱구조
CN111788396B (zh) 排水泵的安装构造
CN218864256U (zh) 一种用于集成灶的油烟机及集成灶
CN111801502B (zh) 排水泵的安装构造
JPH0533754Y2 (de)
JPS5949440B2 (ja) 送風装置
JPS5943520Y2 (ja) モ−トルポンプ
KR960010654Y1 (ko) 배출기 블로워 모터(Ventilation Blower Moter)의 구조
JPH0510299A (ja) 送風装置
JPH09144688A (ja) 送風機
WO2019138482A1 (ja) 天井扇風機
EP1081826A2 (de) Stossdämpfendes System für elektrische Lüfter in Gaskessel mit geschlossener Brennkammer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIC1 Information provided on ipc code assigned before grant

Free format text: 7F 04D 29/42 A, 7F 04D 29/02 B, 7F 04D 29/66 B

17P Request for examination filed

Effective date: 20000817

AKX Designation fees paid

Free format text: DE FR GB IT NL

17Q First examination report despatched

Effective date: 20030416

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69823318

Country of ref document: DE

Date of ref document: 20040527

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051203

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CJ

Ref country code: FR

Ref legal event code: CD

NLS Nl: assignments of ep-patents

Owner name: LN 2 S.R.L.

Effective date: 20060202

Owner name: LN DI NATALINI LINO & C. S.P.A.

Effective date: 20060202

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20090401

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20091222

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20091218

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20110104

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20101222

Year of fee payment: 13

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20110701

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20101122

Year of fee payment: 13

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20101203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120831

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69823318

Country of ref document: DE

Effective date: 20120703

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120703

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121203