EP2792886A3 - Turbofan - Google Patents

Turbofan Download PDF

Info

Publication number
EP2792886A3
EP2792886A3 EP14152662.4A EP14152662A EP2792886A3 EP 2792886 A3 EP2792886 A3 EP 2792886A3 EP 14152662 A EP14152662 A EP 14152662A EP 2792886 A3 EP2792886 A3 EP 2792886A3
Authority
EP
European Patent Office
Prior art keywords
curved
turbofan
blades
main plate
protruding
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
EP14152662.4A
Other languages
German (de)
French (fr)
Other versions
EP2792886A2 (en
EP2792886B1 (en
Inventor
Namjoon Cho
Dongkeun Yang
Youngmin Park
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP2792886A2 publication Critical patent/EP2792886A2/en
Publication of EP2792886A3 publication Critical patent/EP2792886A3/en
Application granted granted Critical
Publication of EP2792886B1 publication Critical patent/EP2792886B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • 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
    • 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
    • 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
    • F04D29/66—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
    • 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
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade

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)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)

Abstract

Provided is a turbofan (200). The turbofan (200) comprises a main plate (115) rotating by a fan motor (120) providing power; and a plurality of blades (400) having one ends connected to the main plate (115), the plurality of blades (400) being disposed along a circumferential direction on the main plate (115), wherein each of the plurality of blades (400) comprises: a first curved part (421) curved in one direction with respect to an extension part (500); and a second curved part (422) curved in the other direction with respect to the extension part (500), wherein a plurality of projections (423) protruding in one direction from the one end of the blade (400) and a plurality of grooves (424) protruding in the other direction are alternately disposed on the first (421) and second (422) curved parts.
Figure imgaf001
EP14152662.4A 2013-04-19 2014-01-27 Turbofan Active EP2792886B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130043387A KR20140125522A (en) 2013-04-19 2013-04-19 turbo fan

Publications (3)

Publication Number Publication Date
EP2792886A2 EP2792886A2 (en) 2014-10-22
EP2792886A3 true EP2792886A3 (en) 2015-06-17
EP2792886B1 EP2792886B1 (en) 2017-08-02

Family

ID=49999809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14152662.4A Active EP2792886B1 (en) 2013-04-19 2014-01-27 Turbofan

Country Status (3)

Country Link
US (1) US20140314575A1 (en)
EP (1) EP2792886B1 (en)
KR (1) KR20140125522A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102203939B1 (en) * 2014-01-06 2021-01-18 삼성전자주식회사 Guide blade and air conditioner having the same
KR102479815B1 (en) * 2015-11-30 2022-12-23 삼성전자주식회사 Blowing fan and air conditioner having the same
EP3882470A4 (en) * 2018-11-22 2022-02-23 GD Midea Air-Conditioning Equipment Co., Ltd. Axial-flow impeller and air-conditioner having the same
TWI774890B (en) 2018-12-07 2022-08-21 宏碁股份有限公司 Blade and fan structure
KR102271595B1 (en) * 2020-12-08 2021-07-01 (주)다모아테크 Sterilization air nozzle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2105791A (en) * 1981-09-22 1983-03-30 Gebhardt Gmbh Wilhelm >Centrifugal fan
EP0942175A1 (en) * 1997-09-30 1999-09-15 Daikin Industries, Limited Centrifugal blower, method of manufacturing the same, and air-conditioner provided with the same
EP1688623A1 (en) * 2003-11-27 2006-08-09 Daikin Industries, Ltd. Blade wheel for centrifugal blower and centerifugal blower with the same
EP1750015A2 (en) * 2005-08-03 2007-02-07 Mitsubishi Heavy Industries, Ltd. Shroud and rotary vane wheel of propeller fan and propeller fan
JP2008223760A (en) * 2007-02-13 2008-09-25 Daikin Ind Ltd Impeller for blower
EP2230407A1 (en) * 2008-01-07 2010-09-22 Daikin Industries, Ltd. Propeller fan
WO2012042245A1 (en) * 2010-09-30 2012-04-05 Imperial Innovations Ltd Fluid flow modification apparatus and method of manufacture
US20120328420A1 (en) * 2010-03-29 2012-12-27 Mitsubishi Electric Corporation Turbofan and indoor unit of air-conditioning apparatus including the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3953085B1 (en) * 2006-03-08 2007-08-01 ダイキン工業株式会社 Centrifugal blower impeller blade, blade support rotating body, centrifugal blower impeller, and method for manufacturing centrifugal blower impeller
JP4396775B2 (en) * 2007-11-26 2010-01-13 ダイキン工業株式会社 Centrifugal fan

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2105791A (en) * 1981-09-22 1983-03-30 Gebhardt Gmbh Wilhelm >Centrifugal fan
EP0942175A1 (en) * 1997-09-30 1999-09-15 Daikin Industries, Limited Centrifugal blower, method of manufacturing the same, and air-conditioner provided with the same
EP1688623A1 (en) * 2003-11-27 2006-08-09 Daikin Industries, Ltd. Blade wheel for centrifugal blower and centerifugal blower with the same
EP1750015A2 (en) * 2005-08-03 2007-02-07 Mitsubishi Heavy Industries, Ltd. Shroud and rotary vane wheel of propeller fan and propeller fan
JP2008223760A (en) * 2007-02-13 2008-09-25 Daikin Ind Ltd Impeller for blower
EP2230407A1 (en) * 2008-01-07 2010-09-22 Daikin Industries, Ltd. Propeller fan
US20120328420A1 (en) * 2010-03-29 2012-12-27 Mitsubishi Electric Corporation Turbofan and indoor unit of air-conditioning apparatus including the same
WO2012042245A1 (en) * 2010-09-30 2012-04-05 Imperial Innovations Ltd Fluid flow modification apparatus and method of manufacture

Also Published As

Publication number Publication date
US20140314575A1 (en) 2014-10-23
KR20140125522A (en) 2014-10-29
EP2792886A2 (en) 2014-10-22
EP2792886B1 (en) 2017-08-02

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