EP1024297A3 - Drain pump - Google Patents

Drain pump Download PDF

Info

Publication number
EP1024297A3
EP1024297A3 EP99118429A EP99118429A EP1024297A3 EP 1024297 A3 EP1024297 A3 EP 1024297A3 EP 99118429 A EP99118429 A EP 99118429A EP 99118429 A EP99118429 A EP 99118429A EP 1024297 A3 EP1024297 A3 EP 1024297A3
Authority
EP
European Patent Office
Prior art keywords
drain pump
vane
height
cylindrical wall
wall member
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
EP99118429A
Other languages
German (de)
French (fr)
Other versions
EP1024297A2 (en
EP1024297B1 (en
Inventor
Tatushi c/o Fujikoki COrporation Ninomiya
Masayuki c/o Fujikoki Corporation Imai
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.)
Fujikoki Corp
Original Assignee
Fujikoki 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 Fujikoki Corp filed Critical Fujikoki Corp
Publication of EP1024297A2 publication Critical patent/EP1024297A2/en
Publication of EP1024297A3 publication Critical patent/EP1024297A3/en
Application granted granted Critical
Publication of EP1024297B1 publication Critical patent/EP1024297B1/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
    • 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
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2216—Shape, geometry
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/24—Vanes
    • F04D29/242—Geometry, shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

A pump body 30 of a drain pump comprises an intake opening 42 protruded downward and a discharge opening 46 extending to the side. A vane 50 inside the pump body 30 is rotated by a motor. The vane 50 is formed so that the outer peripheral portion of large radius vanes 450 is surrounded by a cylindrical wall member 470. The height of the cylindrical wall member 470 against the height of the large radius vanes 450 to the upper rim portion 453 is set to be in a predetermined range, which effectively reduces the noise being generated.
EP99118429A 1999-01-27 1999-09-17 Drain pump Expired - Lifetime EP1024297B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1809699 1999-01-27
JP01809699A JP4267118B2 (en) 1999-01-27 1999-01-27 Drainage pump

Publications (3)

Publication Number Publication Date
EP1024297A2 EP1024297A2 (en) 2000-08-02
EP1024297A3 true EP1024297A3 (en) 2000-10-11
EP1024297B1 EP1024297B1 (en) 2002-03-06

Family

ID=11962109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99118429A Expired - Lifetime EP1024297B1 (en) 1999-01-27 1999-09-17 Drain pump

Country Status (7)

Country Link
EP (1) EP1024297B1 (en)
JP (1) JP4267118B2 (en)
KR (1) KR100571591B1 (en)
CN (1) CN1129717C (en)
DE (1) DE69900972T2 (en)
ES (1) ES2173693T3 (en)
TW (1) TW405023B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002138992A (en) * 2000-11-01 2002-05-17 Fuji Koki Corp Drainage pump
CN1788165B (en) * 2003-12-05 2011-04-13 大金工业株式会社 Drain pump and air conditioner with the same
JP2005282500A (en) * 2004-03-30 2005-10-13 Toshiba Corp Fluid pump, cooling device and electric apparatus
JP2006029214A (en) * 2004-07-16 2006-02-02 Fuji Koki Corp Drain pump
CN100363627C (en) * 2004-11-17 2008-01-23 深圳市兴日生实业有限公司 Automatic rotating electric water pump according to correct direction
CN101614219B (en) * 2008-06-23 2012-08-29 乐金电子(天津)电器有限公司 Draining pump component of air conditioner indoor unit for reducing noise
US8747071B2 (en) * 2009-07-07 2014-06-10 Fujikoki Corporation Drain pump
JP5658526B2 (en) * 2010-10-08 2015-01-28 日本電産サンキョー株式会社 Drain pump
JP6091066B2 (en) * 2012-02-29 2017-03-08 日本電産サンキョー株式会社 Drain pump
JP6001708B2 (en) * 2015-02-26 2016-10-05 株式会社鷺宮製作所 Drain pump
CN110056534B (en) * 2019-05-14 2024-03-26 汉宇集团股份有限公司 Impeller and water pump
CN114087207B (en) * 2020-08-24 2024-07-09 浙江三花商用制冷有限公司 Fluid discharge device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0760428A1 (en) * 1995-08-29 1997-03-05 Fujikoki Corporation Drainage pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355954A (en) * 1980-07-18 1982-10-26 The Maytag Company Pump impeller
JPH1018999A (en) * 1996-07-02 1998-01-20 Mitsubishi Heavy Ind Ltd Drain pump
JP2846853B2 (en) * 1996-07-16 1999-01-13 株式会社不二工機 Liquid discharge pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0760428A1 (en) * 1995-08-29 1997-03-05 Fujikoki Corporation Drainage pump

Also Published As

Publication number Publication date
EP1024297A2 (en) 2000-08-02
CN1129717C (en) 2003-12-03
KR20000052358A (en) 2000-08-25
KR100571591B1 (en) 2006-04-17
ES2173693T3 (en) 2002-10-16
JP2000213769A (en) 2000-08-02
EP1024297B1 (en) 2002-03-06
TW405023B (en) 2000-09-11
CN1262393A (en) 2000-08-09
DE69900972D1 (en) 2002-04-11
JP4267118B2 (en) 2009-05-27
DE69900972T2 (en) 2002-11-21

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