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EP0928899A3 - Once-through blower - Google Patents

Once-through blower Download PDF

Info

Publication number
EP0928899A3
EP0928899A3 EP98114422A EP98114422A EP0928899A3 EP 0928899 A3 EP0928899 A3 EP 0928899A3 EP 98114422 A EP98114422 A EP 98114422A EP 98114422 A EP98114422 A EP 98114422A EP 0928899 A3 EP0928899 A3 EP 0928899A3
Authority
EP
European Patent Office
Prior art keywords
once
impeller
arc
casing
stabilizer
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
EP98114422A
Other languages
German (de)
French (fr)
Other versions
EP0928899A2 (en
EP0928899B1 (en
Inventor
Makoto c/o Mitsubishi Denki K.K. Yoshihashi
Katsumi c/o Mitsubishi Denki K.K. Ohashi
Tetsuji c/o Mitsubishi Elec Eng Co.Ltd. Uchiyama
Yauyuki c/o Mitsubishi Elec Eng Co.Ltd. Arai
Kengo c/o Mitsubishi Elec Eng Co Ltd. Takahashi
Yoshiaki c/o Mitsubishi Elec Eng Co Ltd. Kuwahara
Masaharu c/o Mitsubishi Elec Eng Co Ltd. Miwa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0928899A2 publication Critical patent/EP0928899A2/en
Publication of EP0928899A3 publication Critical patent/EP0928899A3/en
Application granted granted Critical
Publication of EP0928899B1 publication Critical patent/EP0928899B1/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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/422—Discharge tongues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

A once-through blower including a once-through impeller (8) is described. The blower includes a blowout duct (10), a stabilizer (13) and a scroll casing (9). The stabilizer (13) provided at an end of the blowout duct (10) so as to face the once-through impeller (8). The scroll casing (9) is provided at the back of the once-through impeller (8) and connected to the blowout duct (10). The stabilizer (13) has a curved surface (18) which is formed along an arc (15). The diameter of the arc (15) is 103% or more of that of the once-through impeller (8). The scroll casing (9) has an interior curved surface (19) which is formed along a casing arc. The casing arc is concentric with the arc center (21). A clearance between a predetermined outer peripheral point (23) of the once-through impeller (8) and the inflow-side end of the scroll casing (9) is set so as to become 3% or more of the diameter of the once-through impeller (8).
EP19980114422 1998-01-12 1998-07-31 Once-through blower Expired - Lifetime EP0928899B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP00360698A JP3649567B2 (en) 1998-01-12 1998-01-12 Once-through fan
JP360698 1998-01-12

Publications (3)

Publication Number Publication Date
EP0928899A2 EP0928899A2 (en) 1999-07-14
EP0928899A3 true EP0928899A3 (en) 2000-05-03
EP0928899B1 EP0928899B1 (en) 2004-01-07

Family

ID=11562160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980114422 Expired - Lifetime EP0928899B1 (en) 1998-01-12 1998-07-31 Once-through blower

Country Status (7)

Country Link
EP (1) EP0928899B1 (en)
JP (1) JP3649567B2 (en)
CN (1) CN1115523C (en)
DE (1) DE69820976T2 (en)
ES (1) ES2212179T3 (en)
HK (1) HK1021656A1 (en)
TW (1) TW360767B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3497073B2 (en) * 1998-01-19 2004-02-16 三菱電機株式会社 Once-through blower
AU767078B2 (en) 2000-09-29 2003-10-30 Mitsubishi Denki Kabushiki Kaisha Air conditioner
ITVI20020145A1 (en) * 2002-07-02 2004-01-02 Comefri Spa ANTI-NOISE AND ANTI-VORTE DIVIDER
EP1747917B1 (en) 2005-07-28 2009-10-21 ebm-papst St. Georgen GmbH & Co. KG Heating device
CN1955564B (en) * 2005-10-27 2010-05-05 乐金电子(天津)电器有限公司 Indoor unit of split air conditioner
JP2007120880A (en) * 2005-10-28 2007-05-17 Mitsubishi Electric Corp Cross flow fan
JP5029109B2 (en) * 2007-04-12 2012-09-19 パナソニック株式会社 Air conditioner
JP5862655B2 (en) * 2013-12-27 2016-02-16 ダイキン工業株式会社 Air conditioning indoor unit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2934987A1 (en) * 1979-08-30 1981-03-19 Kurt Dr.-Ing. 7500 Karlsruhe Zenkner Roof ventilator with centrifugal fan - has spiral plate and body for flat pressure-volume characteristic
DE8034229U1 (en) * 1980-12-22 1986-07-03 Ltg Lufttechnische Gmbh, 7000 Stuttgart Tangential fan
EP0303543A1 (en) * 1987-08-13 1989-02-15 ETAT-FRANCAIS représenté par le DELEGUE GENERAL POUR L'ARMEMENT (DPAG) Cross-flow fan
JPH05296479A (en) * 1992-04-17 1993-11-09 Toshiba Corp Indoor unit for air conditioning device
JPH07305695A (en) * 1995-04-14 1995-11-21 Sanyo Electric Co Ltd Air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2934987A1 (en) * 1979-08-30 1981-03-19 Kurt Dr.-Ing. 7500 Karlsruhe Zenkner Roof ventilator with centrifugal fan - has spiral plate and body for flat pressure-volume characteristic
DE8034229U1 (en) * 1980-12-22 1986-07-03 Ltg Lufttechnische Gmbh, 7000 Stuttgart Tangential fan
EP0303543A1 (en) * 1987-08-13 1989-02-15 ETAT-FRANCAIS représenté par le DELEGUE GENERAL POUR L'ARMEMENT (DPAG) Cross-flow fan
JPH05296479A (en) * 1992-04-17 1993-11-09 Toshiba Corp Indoor unit for air conditioning device
JPH07305695A (en) * 1995-04-14 1995-11-21 Sanyo Electric Co Ltd Air conditioner

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 094 (M - 1561) 16 February 1994 (1994-02-16) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 03 29 March 1996 (1996-03-29) *

Also Published As

Publication number Publication date
DE69820976T2 (en) 2004-10-21
JP3649567B2 (en) 2005-05-18
EP0928899A2 (en) 1999-07-14
TW360767B (en) 1999-06-11
CN1223360A (en) 1999-07-21
JPH11201487A (en) 1999-07-30
EP0928899B1 (en) 2004-01-07
DE69820976D1 (en) 2004-02-12
HK1021656A1 (en) 2000-06-23
CN1115523C (en) 2003-07-23
ES2212179T3 (en) 2004-07-16

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