EP0961087A3 - Fan scroll - Google Patents

Fan scroll Download PDF

Info

Publication number
EP0961087A3
EP0961087A3 EP99630038A EP99630038A EP0961087A3 EP 0961087 A3 EP0961087 A3 EP 0961087A3 EP 99630038 A EP99630038 A EP 99630038A EP 99630038 A EP99630038 A EP 99630038A EP 0961087 A3 EP0961087 A3 EP 0961087A3
Authority
EP
European Patent Office
Prior art keywords
flow path
scroll
fan
cubage
increasing
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
Application number
EP99630038A
Other languages
German (de)
French (fr)
Other versions
EP0961087B1 (en
EP0961087A2 (en
Inventor
Shau-Tak R. Chou
Mark A. Daniels
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.)
Carrier Corp
Original Assignee
Carrier Corp
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 Carrier Corp filed Critical Carrier Corp
Publication of EP0961087A2 publication Critical patent/EP0961087A2/en
Publication of EP0961087A3 publication Critical patent/EP0961087A3/en
Application granted granted Critical
Publication of EP0961087B1 publication Critical patent/EP0961087B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/40—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
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The angular extent of the flow path in a fan scroll is extended by reducing the rate of radial expansion of the flow path. By extending the angular as circumferential extent of the scroll flow path downstream of the fan impeller ANC structure can be located in/on the scroll while being located a sufficient distance downstream of the impeller. The flow path length can be increased without increasing the cubage of the scroll and, if desired, a further flow path increase can be achieved by a combination of the reduced rate of radial expansion together with increasing the cubage.
EP19990630038 1998-05-26 1999-04-16 Fan scroll Expired - Lifetime EP0961087B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8446498P 1998-05-26 1998-05-26
US84464 1998-05-26

Publications (3)

Publication Number Publication Date
EP0961087A2 EP0961087A2 (en) 1999-12-01
EP0961087A3 true EP0961087A3 (en) 2003-01-08
EP0961087B1 EP0961087B1 (en) 2004-11-24

Family

ID=22185125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990630038 Expired - Lifetime EP0961087B1 (en) 1998-05-26 1999-04-16 Fan scroll

Country Status (3)

Country Link
EP (1) EP0961087B1 (en)
DE (1) DE69922083T2 (en)
ES (1) ES2230824T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005004180U1 (en) * 2005-03-14 2006-07-27 Ebm-Papst Landshut Gmbh centrifugal blower
DE102005057399B4 (en) * 2005-11-30 2015-12-24 Siemens Aktiengesellschaft Gas flow generator with a gas outlet and with a noise reducer and method
ITAN20120079U1 (en) 2011-11-21 2013-05-22 Sipe Srl SILENT SMOKE SUCTION HOOD.
US9508337B2 (en) 2013-05-17 2016-11-29 Ask Industries Societa Per Azioni Low-noise fume extractor hood

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182596A (en) * 1978-02-16 1980-01-08 Carrier Corporation Discharge housing assembly for a vane axial fan
US5156524A (en) * 1990-10-26 1992-10-20 Airflow Research And Manufacturing Corporation Centrifugal fan with accumulating volute
WO1993002445A1 (en) * 1991-07-16 1993-02-04 Noise Cancellation Technologies, Inc. High efficiency fan with adaptive noise cancellation
US5279515A (en) * 1992-12-21 1994-01-18 American Standard Inc. Air handling unit with improved acoustical performance
EP0596846A1 (en) * 1992-11-03 1994-05-11 Aktiebolaget Electrolux Kitchen ventilator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182596A (en) * 1978-02-16 1980-01-08 Carrier Corporation Discharge housing assembly for a vane axial fan
US5156524A (en) * 1990-10-26 1992-10-20 Airflow Research And Manufacturing Corporation Centrifugal fan with accumulating volute
WO1993002445A1 (en) * 1991-07-16 1993-02-04 Noise Cancellation Technologies, Inc. High efficiency fan with adaptive noise cancellation
EP0596846A1 (en) * 1992-11-03 1994-05-11 Aktiebolaget Electrolux Kitchen ventilator
US5279515A (en) * 1992-12-21 1994-01-18 American Standard Inc. Air handling unit with improved acoustical performance

Also Published As

Publication number Publication date
ES2230824T3 (en) 2005-05-01
EP0961087B1 (en) 2004-11-24
EP0961087A2 (en) 1999-12-01
DE69922083T2 (en) 2005-03-31
DE69922083D1 (en) 2004-12-30

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