EP1293680A4 - Drainage pump - Google Patents

Drainage pump

Info

Publication number
EP1293680A4
EP1293680A4 EP01941029A EP01941029A EP1293680A4 EP 1293680 A4 EP1293680 A4 EP 1293680A4 EP 01941029 A EP01941029 A EP 01941029A EP 01941029 A EP01941029 A EP 01941029A EP 1293680 A4 EP1293680 A4 EP 1293680A4
Authority
EP
European Patent Office
Prior art keywords
drainage
straightening ring
drainage pump
guide
straightening
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.)
Withdrawn
Application number
EP01941029A
Other languages
German (de)
French (fr)
Other versions
EP1293680A1 (en
Inventor
Akira Kasuya
Katsuya Taguchi
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.)
Saginomiya Seisakusho Inc
Original Assignee
Saginomiya Seisakusho 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 Saginomiya Seisakusho Inc filed Critical Saginomiya Seisakusho Inc
Publication of EP1293680A1 publication Critical patent/EP1293680A1/en
Publication of EP1293680A4 publication Critical patent/EP1293680A4/en
Withdrawn legal-status Critical Current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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal 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
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
    • 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
    • F04D29/2238—Special flow patterns
    • 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
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance
    • 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
    • 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
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (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 drainage pump capable of reducing operating noise, wherein a drainage straightening ring (30) is vertically provided on the outer periphery of the vanes (22) of an impeller (20) and on the outer peripheral edge of drain guide surfaces apart a specified radius from a shaft part (21), and a drainage guide parts (25) are provided on the inside of the drainage straightening ring (30), whereby air bubbles are suppressed from producing in the drainage in association of the drainage straightening ring (30) with the drainage guide part (25) so as to reduce noise and vibration.
EP01941029A 2000-06-21 2001-06-13 Drainage pump Withdrawn EP1293680A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000185549 2000-06-21
JP2000185549A JP3511044B2 (en) 2000-06-21 2000-06-21 Drain drain pump
PCT/JP2001/005008 WO2001098667A1 (en) 2000-06-21 2001-06-13 Drainage pump

Publications (2)

Publication Number Publication Date
EP1293680A1 EP1293680A1 (en) 2003-03-19
EP1293680A4 true EP1293680A4 (en) 2005-10-19

Family

ID=18685858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01941029A Withdrawn EP1293680A4 (en) 2000-06-21 2001-06-13 Drainage pump

Country Status (5)

Country Link
EP (1) EP1293680A4 (en)
JP (1) JP3511044B2 (en)
KR (1) KR100720377B1 (en)
CN (1) CN1193172C (en)
WO (1) WO2001098667A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006029214A (en) * 2004-07-16 2006-02-02 Fuji Koki Corp Drain pump
KR100970822B1 (en) * 2004-09-30 2010-07-16 가부시키가이샤 사기노미야세이사쿠쇼 Vertical shaft centrifugal pump, rotor for the pump, and air conditioner
MX2009013028A (en) * 2007-06-01 2010-03-29 Gorman Rupp Co Pump and pump impeller.
KR100937927B1 (en) * 2008-02-01 2010-01-21 경남중천전화(주) Impeller for draining pump
JP2009293852A (en) * 2008-06-05 2009-12-17 Fuji Electric Retail Systems Co Ltd Ice storage type beverage cooling device
JP5227370B2 (en) * 2010-07-09 2013-07-03 パナソニック株式会社 Drain pump
JP5889051B2 (en) * 2011-08-30 2016-03-22 株式会社不二工機 Drainage pump
CN102454628A (en) * 2011-12-30 2012-05-16 新昌县富士精工科技有限公司 Impeller for air conditioning draining pump
CN103899541B (en) * 2012-12-28 2016-03-02 常州雷利电机科技有限公司 draining pump
CN103470538A (en) * 2013-09-12 2013-12-25 昆山市巴城镇顺拓工程机械配件厂 Low-noise drainage pump
CN105464995B (en) * 2014-09-26 2019-01-11 株式会社不二工机 draining pump
JP6427428B2 (en) * 2014-09-26 2018-11-21 株式会社不二工機 Drainage pump
JP2017106388A (en) * 2015-12-10 2017-06-15 株式会社鷺宮製作所 Pump rotor and drain pump
CN113351831B (en) * 2021-05-06 2022-12-23 江山市通联泵业成套有限公司 High-precision and integrally-formed water pump impeller
KR20220162988A (en) 2021-06-02 2022-12-09 주식회사 에스 씨디 Drain pump
CN114923218B (en) * 2022-03-29 2023-08-18 青岛海信日立空调系统有限公司 Air conditioner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08189662A (en) * 1995-01-12 1996-07-23 Fuji Koki Seisakusho:Kk Drainage pump
JPH0979171A (en) * 1995-09-14 1997-03-25 Fuji Koki:Kk Drainage pump
JPH09145085A (en) * 1995-11-24 1997-06-06 Saginomiya Seisakusho Inc Drain discharge pump

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3910665B2 (en) 1996-10-11 2007-04-25 株式会社不二工機 Drainage pump
JP2000046363A (en) * 1998-05-25 2000-02-18 Saginomiya Seisakusho Inc Drain pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08189662A (en) * 1995-01-12 1996-07-23 Fuji Koki Seisakusho:Kk Drainage pump
JPH0979171A (en) * 1995-09-14 1997-03-25 Fuji Koki:Kk Drainage pump
JPH09145085A (en) * 1995-11-24 1997-06-06 Saginomiya Seisakusho Inc Drain discharge pump

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 11 29 November 1996 (1996-11-29) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 07 31 July 1997 (1997-07-31) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 10 31 October 1997 (1997-10-31) *
See also references of WO0198667A1 *

Also Published As

Publication number Publication date
JP2002005083A (en) 2002-01-09
CN1193172C (en) 2005-03-16
CN1383476A (en) 2002-12-04
KR20020035121A (en) 2002-05-09
EP1293680A1 (en) 2003-03-19
JP3511044B2 (en) 2004-03-29
KR100720377B1 (en) 2007-05-21
WO2001098667A1 (en) 2001-12-27

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 20020219

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A4 Supplementary search report drawn up and despatched

Effective date: 20050902

RIC1 Information provided on ipc code assigned before grant

Ipc: 7F 04D 1/14 B

Ipc: 7F 04D 29/66 B

Ipc: 7F 04D 29/22 A

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20051117