EP1447568A3 - Impellers and diffusers for fans and compressors - Google Patents

Impellers and diffusers for fans and compressors Download PDF

Info

Publication number
EP1447568A3
EP1447568A3 EP04000093A EP04000093A EP1447568A3 EP 1447568 A3 EP1447568 A3 EP 1447568A3 EP 04000093 A EP04000093 A EP 04000093A EP 04000093 A EP04000093 A EP 04000093A EP 1447568 A3 EP1447568 A3 EP 1447568A3
Authority
EP
European Patent Office
Prior art keywords
flow
diffusers
impellers
compressors
fans
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
EP04000093A
Other languages
German (de)
French (fr)
Other versions
EP1447568A2 (en
EP1447568B1 (en
Inventor
Klaus Dr.-Ing. habil. Döge
Uwe Prof. Dr.-Ing. Franzke
Ralph Dr.-Ing. Krause
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.)
Institut fuer Luft und Kaeltetechnik Gemeinnuetzige GmbH
Original Assignee
Institut fuer Luft und Kaeltetechnik Gemeinnuetzige GmbH
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 Institut fuer Luft und Kaeltetechnik Gemeinnuetzige GmbH filed Critical Institut fuer Luft und Kaeltetechnik Gemeinnuetzige GmbH
Publication of EP1447568A2 publication Critical patent/EP1447568A2/en
Publication of EP1447568A3 publication Critical patent/EP1447568A3/en
Application granted granted Critical
Publication of EP1447568B1 publication Critical patent/EP1447568B1/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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The wheels (1,2) are made from a solid matrix with a number of flow channels (21) in which deflection of the flow and the associated pressure increase take place to reduce flow noise and to improve the characteristic stability between the inlet and outlet flow cross-sections. The solid matrix is made non-isotropically from separate segments through which the flow channels are formed.
EP04000093A 2003-01-17 2004-01-07 Impellers and diffusers for fans and compressors Expired - Lifetime EP1447568B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10302773 2003-01-17
DE10302773A DE10302773B3 (en) 2003-01-17 2003-01-17 Impeller and idler wheels for flow machines, especially compressors and fans, are made from solid matrix with flow channels in which deflection of flow and associated pressure increase take place

Publications (3)

Publication Number Publication Date
EP1447568A2 EP1447568A2 (en) 2004-08-18
EP1447568A3 true EP1447568A3 (en) 2005-10-26
EP1447568B1 EP1447568B1 (en) 2009-03-11

Family

ID=31502579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04000093A Expired - Lifetime EP1447568B1 (en) 2003-01-17 2004-01-07 Impellers and diffusers for fans and compressors

Country Status (5)

Country Link
US (1) US20040184914A1 (en)
EP (1) EP1447568B1 (en)
JP (1) JP2005290987A (en)
AT (1) ATE425367T1 (en)
DE (2) DE10302773B3 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005044470A1 (en) * 2005-09-16 2007-03-22 Orbiter Group Beteiligungs Gmbh Use of a metal foam in turbomachines, especially in turbines, fans and pumps
JP5061447B2 (en) * 2005-10-06 2012-10-31 パナソニック株式会社 Blower
US7455504B2 (en) * 2005-11-23 2008-11-25 Hill Engineering High efficiency fluid movers
US20070140842A1 (en) * 2005-11-23 2007-06-21 Hill Charles C High efficiency fluid movers
US20070177349A1 (en) * 2005-11-23 2007-08-02 Himanshu Pokharna High efficiency fluid mover
GB0612993D0 (en) * 2006-06-30 2006-08-09 Qinetiq Ltd Centrifugal impeller
GB0613012D0 (en) * 2006-06-30 2006-08-09 Qinetiq Ltd Axial flow impeller
JP6085835B2 (en) 2009-08-11 2017-03-08 レスメド・モーター・テクノロジーズ・インコーポレーテッド Single stage, axisymmetric blower and portable ventilator
JP5819590B2 (en) 2010-03-17 2015-11-24 東京電力株式会社 Axial flow compressor
CN103959195B (en) * 2011-12-07 2018-04-20 英特尔公司 Volume resistance fan equipment and system
US9239060B2 (en) * 2012-09-28 2016-01-19 Intel Corporation Blower assembly for electronic device
US10545546B2 (en) 2018-02-23 2020-01-28 Intel Corporation Reversible direction thermal cooling system
JP7035617B2 (en) 2018-02-26 2022-03-15 日本電産株式会社 Centrifugal fan
EP3628872B1 (en) 2018-09-27 2023-01-25 INTEL Corporation Volumetric resistance blowers
CN112983852B (en) * 2021-03-22 2022-05-31 联想(北京)有限公司 Fan blade, fan assembly, electronic equipment and manufacturing method of fan assembly
US20240060511A1 (en) * 2021-10-06 2024-02-22 Narasimma Achari Arumugam Swirl flow ceiling fan

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH409225A (en) * 1960-06-02 1966-03-15 Junker & Ruh Ag Centrifugal fan
GB2065773A (en) * 1979-12-21 1981-07-01 Rolls Royce Rotary Pumps
JPH03237298A (en) * 1990-02-09 1991-10-23 Matsushita Electric Ind Co Ltd Air blower impeller and manufacture thereof
US5584656A (en) * 1995-06-28 1996-12-17 The Scott Fetzer Company Flexible impeller for a vacuum cleaner
JP2002089492A (en) * 2000-09-11 2002-03-27 Matsushita Seiko Co Ltd Impeller for centrifugal fan
JP2002213391A (en) * 2001-01-15 2002-07-31 Matsushita Seiko Co Ltd Centrifugal blast impeller

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE174180C (en) *
US5265348A (en) * 1992-08-12 1993-11-30 Fleishman Roc V Porous rotor
US5244349A (en) * 1992-09-24 1993-09-14 Wang Sui Mu Air fan with lightly-constructed reinforcing fan blades
DE19545977A1 (en) * 1995-12-09 1997-06-12 Fluck Hans Joachim Dr Dipl Ing Ventilator rotor manufacture for turbo machines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH409225A (en) * 1960-06-02 1966-03-15 Junker & Ruh Ag Centrifugal fan
GB2065773A (en) * 1979-12-21 1981-07-01 Rolls Royce Rotary Pumps
JPH03237298A (en) * 1990-02-09 1991-10-23 Matsushita Electric Ind Co Ltd Air blower impeller and manufacture thereof
US5584656A (en) * 1995-06-28 1996-12-17 The Scott Fetzer Company Flexible impeller for a vacuum cleaner
JP2002089492A (en) * 2000-09-11 2002-03-27 Matsushita Seiko Co Ltd Impeller for centrifugal fan
JP2002213391A (en) * 2001-01-15 2002-07-31 Matsushita Seiko Co Ltd Centrifugal blast impeller

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 026 (M - 1202) 22 January 1992 (1992-01-22) *
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 07 3 July 2002 (2002-07-03) *
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 11 6 November 2002 (2002-11-06) *

Also Published As

Publication number Publication date
JP2005290987A (en) 2005-10-20
EP1447568A2 (en) 2004-08-18
EP1447568B1 (en) 2009-03-11
US20040184914A1 (en) 2004-09-23
DE502004009108D1 (en) 2009-04-23
DE10302773B3 (en) 2004-03-11
ATE425367T1 (en) 2009-03-15

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