EP0837246A3 - Fan housing for feeding air to a ventilation system - Google Patents

Fan housing for feeding air to a ventilation system Download PDF

Info

Publication number
EP0837246A3
EP0837246A3 EP97850137A EP97850137A EP0837246A3 EP 0837246 A3 EP0837246 A3 EP 0837246A3 EP 97850137 A EP97850137 A EP 97850137A EP 97850137 A EP97850137 A EP 97850137A EP 0837246 A3 EP0837246 A3 EP 0837246A3
Authority
EP
European Patent Office
Prior art keywords
impeller
fan housing
ventilation system
feeding air
shaft
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.)
Withdrawn
Application number
EP97850137A
Other languages
German (de)
French (fr)
Other versions
EP0837246A2 (en
Inventor
Gunnar Berg
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.)
PM-Luft AB
PM Luft
Original Assignee
PM-Luft AB
PM Luft
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 PM-Luft AB, PM Luft filed Critical PM-Luft AB
Publication of EP0837246A2 publication Critical patent/EP0837246A2/en
Publication of EP0837246A3 publication Critical patent/EP0837246A3/en
Withdrawn legal-status Critical Current

Links

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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • 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
    • F04D29/424—Double entry casings

Abstract

The present invention relates to a fan housing for feeding air via an outlet (14) to a ventilation system. The fan housing comprises a radial impeller (16) rotatably mounted to a shaft which wheel has at least one centrally arranged inlet (17) and a number of impeller blades (18). Furthermore, there is a wall (20) being substantially parallel to the rotational axis which wall is curved with a monotonous increasing radius in relation to said shaft, between a first end edge (21) at a certain distance from said impeller and a second end edge (22) at a larger distance from said impeller. An imagined, straight line (23) between the two end edges (21, 22) extends through the impeller (16).
EP97850137A 1996-10-15 1997-10-14 Fan housing for feeding air to a ventilation system Withdrawn EP0837246A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9603762 1996-10-15
SE9603762A SE9603762L (en) 1996-10-15 1996-10-15 Fan housing for supplying air to a ventilation system

Publications (2)

Publication Number Publication Date
EP0837246A2 EP0837246A2 (en) 1998-04-22
EP0837246A3 true EP0837246A3 (en) 1998-11-18

Family

ID=20404248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97850137A Withdrawn EP0837246A3 (en) 1996-10-15 1997-10-14 Fan housing for feeding air to a ventilation system

Country Status (2)

Country Link
EP (1) EP0837246A3 (en)
SE (1) SE9603762L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19934586A1 (en) * 1999-07-23 2001-01-25 Behr Gmbh & Co fan
JP2004169579A (en) * 2002-11-18 2004-06-17 Sanden Corp Centrifugal blower
US7591633B2 (en) * 2005-09-13 2009-09-22 Trane International, Inc. Centrifugal blower for air handling equipment

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB926088A (en) * 1960-11-08 1963-05-15 Brightside Heating & Engineeri Improvements relating to centrifugal fans
US3174682A (en) * 1961-07-01 1965-03-23 Daimler Benz Ag Heating or cooling fan
US3312389A (en) * 1964-05-04 1967-04-04 Fukuo Saeki Air blower device with silencer
US3485443A (en) * 1968-12-12 1969-12-23 Trane Co Fan scroll
GB1419591A (en) * 1972-03-03 1975-12-31 Ltg Lufttechnische Gmbh Radial flow fan
US3950835A (en) * 1974-10-02 1976-04-20 Carrier Corporation Fan assembly and method of manufacturing same
DE7129939U (en) * 1971-08-04 1977-03-24 Papst - Motoren Kg, 7742 St Georgen Fans, in particular desktop fans
EP0083704A1 (en) * 1981-12-24 1983-07-20 FSL Fenster-System-Lüftung GmbH Fan, especially a fan to be built in

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB926088A (en) * 1960-11-08 1963-05-15 Brightside Heating & Engineeri Improvements relating to centrifugal fans
US3174682A (en) * 1961-07-01 1965-03-23 Daimler Benz Ag Heating or cooling fan
US3312389A (en) * 1964-05-04 1967-04-04 Fukuo Saeki Air blower device with silencer
US3485443A (en) * 1968-12-12 1969-12-23 Trane Co Fan scroll
DE7129939U (en) * 1971-08-04 1977-03-24 Papst - Motoren Kg, 7742 St Georgen Fans, in particular desktop fans
GB1419591A (en) * 1972-03-03 1975-12-31 Ltg Lufttechnische Gmbh Radial flow fan
US3950835A (en) * 1974-10-02 1976-04-20 Carrier Corporation Fan assembly and method of manufacturing same
EP0083704A1 (en) * 1981-12-24 1983-07-20 FSL Fenster-System-Lüftung GmbH Fan, especially a fan to be built in

Also Published As

Publication number Publication date
SE9603762L (en) 1998-04-16
SE9603762D0 (en) 1996-10-15
EP0837246A2 (en) 1998-04-22

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