EP0947708A3 - A cross-flow fan and an air-conditioner using it - Google Patents

A cross-flow fan and an air-conditioner using it Download PDF

Info

Publication number
EP0947708A3
EP0947708A3 EP99106442A EP99106442A EP0947708A3 EP 0947708 A3 EP0947708 A3 EP 0947708A3 EP 99106442 A EP99106442 A EP 99106442A EP 99106442 A EP99106442 A EP 99106442A EP 0947708 A3 EP0947708 A3 EP 0947708A3
Authority
EP
European Patent Office
Prior art keywords
conditioner
air
cross
flow fan
disposed
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
EP99106442A
Other languages
German (de)
French (fr)
Other versions
EP0947708B1 (en
EP0947708A2 (en
Inventor
Noriyuki Nabeshima
Tomohito Takada
Michihiro Kurokawa
Tomohito Koizumi
Yoshinori Toya
Kiyoshi Koyama
Shigeya Ishigaki
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of EP0947708A2 publication Critical patent/EP0947708A2/en
Publication of EP0947708A3 publication Critical patent/EP0947708A3/en
Application granted granted Critical
Publication of EP0947708B1 publication Critical patent/EP0947708B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
    • 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
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes

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)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

A number of vanes 12 are disposed in a peripheral direction of a plurality of supporting disks disposed along a rotary shaft 14 at given intervals. Each vane 12 is disposed at an angular interval as determined by a logistic representation. Thereby the intensity and variations of noise levels at around 8N on the low-frequency side, as well as the noise level caused by rotary first-order sounds, can be reduced.
EP99106442A 1998-03-30 1999-03-29 A cross-flow fan and an air-conditioner using it Expired - Lifetime EP0947708B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8327898 1998-03-30
JP8327898 1998-03-30

Publications (3)

Publication Number Publication Date
EP0947708A2 EP0947708A2 (en) 1999-10-06
EP0947708A3 true EP0947708A3 (en) 2001-03-07
EP0947708B1 EP0947708B1 (en) 2005-02-02

Family

ID=13797905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99106442A Expired - Lifetime EP0947708B1 (en) 1998-03-30 1999-03-29 A cross-flow fan and an air-conditioner using it

Country Status (4)

Country Link
EP (1) EP0947708B1 (en)
KR (1) KR100545985B1 (en)
DE (1) DE69923490T2 (en)
TW (1) TW377393B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1119082A3 (en) * 2000-01-18 2004-05-26 Ushiodenki Kabushiki Kaisha Cross-flow fan for discharge excited gas laser
CN110857701B (en) * 2018-08-23 2021-06-01 广东威灵电机制造有限公司 Blade arrangement method of impeller
CN112797483B (en) * 2021-02-10 2021-12-07 珠海格力电器股份有限公司 Air supply control method and control system for indoor unit of air conditioner and air conditioner
CN114060302B (en) * 2021-10-09 2023-06-02 佛山市顺德区美的电子科技有限公司 Control method and device of double cross-flow fans, double cross-flow fans and medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5266007A (en) * 1993-03-01 1993-11-30 Carrier Corporation Impeller for transverse fan
DE4421604C1 (en) * 1994-06-21 1995-04-13 Siemens Ag Side-passage compressor
EP0785362A1 (en) * 1996-01-18 1997-07-23 Mitsubishi Denki Kabushiki Kaisha Cross flow fan impeller
US5681145A (en) * 1996-10-30 1997-10-28 Itt Automotive Electrical Systems, Inc. Low-noise, high-efficiency fan assembly combining unequal blade spacing angles and unequal blade setting angles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5266007A (en) * 1993-03-01 1993-11-30 Carrier Corporation Impeller for transverse fan
DE4421604C1 (en) * 1994-06-21 1995-04-13 Siemens Ag Side-passage compressor
EP0785362A1 (en) * 1996-01-18 1997-07-23 Mitsubishi Denki Kabushiki Kaisha Cross flow fan impeller
US5681145A (en) * 1996-10-30 1997-10-28 Itt Automotive Electrical Systems, Inc. Low-noise, high-efficiency fan assembly combining unequal blade spacing angles and unequal blade setting angles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MELLIN R C ET AL: "CONTROLLING THE TONAL CHARACTERISTICS OF THE AERODYNAMIC NOISE GENERATED BY FAN ROTORS", TRANSACTIONS OF THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS, SERIES D: JOURNAL OF BASIC ENGINEERING,US,ASME. NEW YORK, vol. 92, no. 1, 1 March 1970 (1970-03-01), pages 143 - 154, XP002030072 *

Also Published As

Publication number Publication date
DE69923490D1 (en) 2005-03-10
EP0947708B1 (en) 2005-02-02
KR100545985B1 (en) 2006-01-25
KR19990078295A (en) 1999-10-25
EP0947708A2 (en) 1999-10-06
TW377393B (en) 1999-12-21
DE69923490T2 (en) 2006-02-16

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