EP1002957A3 - Radial fan - Google Patents

Radial fan Download PDF

Info

Publication number
EP1002957A3
EP1002957A3 EP99122993A EP99122993A EP1002957A3 EP 1002957 A3 EP1002957 A3 EP 1002957A3 EP 99122993 A EP99122993 A EP 99122993A EP 99122993 A EP99122993 A EP 99122993A EP 1002957 A3 EP1002957 A3 EP 1002957A3
Authority
EP
European Patent Office
Prior art keywords
blade ring
impeller
radial fan
fan
airflow
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
EP99122993A
Other languages
German (de)
French (fr)
Other versions
EP1002957B1 (en
EP1002957A2 (en
Inventor
Ernst Dipl.-Ing. Claussen
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.)
Punker GmbH
Original Assignee
Punker GmbH
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 Punker GmbH filed Critical Punker GmbH
Publication of EP1002957A2 publication Critical patent/EP1002957A2/en
Publication of EP1002957A3 publication Critical patent/EP1002957A3/en
Application granted granted Critical
Publication of EP1002957B1 publication Critical patent/EP1002957B1/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
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • 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
    • 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
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/102—Shaft sealings especially adapted for elastic fluid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

The fan has an impeller (10) which has a blade ring (15) on its periphery. A partition (26) which is arranged on one of the side walls, engages with the impeller and divides its interior chamber into two chambers. The blade ring has labyrinth seal-type protrusions and/or cavities (20) directly on the peripheral wall region (19) of the blade ring for preventing the airflow between the impeller and the blade ring.
EP99122993A 1998-11-20 1999-11-19 Radial fan Expired - Lifetime EP1002957B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29820767U 1998-11-20
DE29820767U DE29820767U1 (en) 1998-11-20 1998-11-20 Radial blower

Publications (3)

Publication Number Publication Date
EP1002957A2 EP1002957A2 (en) 2000-05-24
EP1002957A3 true EP1002957A3 (en) 2002-01-16
EP1002957B1 EP1002957B1 (en) 2003-08-13

Family

ID=8065601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99122993A Expired - Lifetime EP1002957B1 (en) 1998-11-20 1999-11-19 Radial fan

Country Status (4)

Country Link
EP (1) EP1002957B1 (en)
AT (1) ATE247231T1 (en)
DE (2) DE29820767U1 (en)
ES (1) ES2200457T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE278877T1 (en) 1999-01-20 2004-10-15 Punker Gmbh & Co RADIAL FANS
EP1022470B1 (en) 1999-01-20 2004-10-13 PUNKER GmbH & CO. Radial fan
DE50006003D1 (en) 2000-09-14 2004-05-13 Punker Gmbh & Co Fan arrangement, in particular radial fan arrangement
EP1528258A1 (en) * 2003-10-31 2005-05-04 Punker GmbH & Co. Radial fan for a gas burner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420786A1 (en) * 1989-09-25 1991-04-03 Carrier Corporation Balance piston and seal arrangement
EP0589300A1 (en) * 1992-09-25 1994-03-30 Siegfried W. Schilling Radial blower
DE19501816A1 (en) * 1995-01-21 1996-07-25 Koerting Ag Radial blower for blow burner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420786A1 (en) * 1989-09-25 1991-04-03 Carrier Corporation Balance piston and seal arrangement
EP0589300A1 (en) * 1992-09-25 1994-03-30 Siegfried W. Schilling Radial blower
DE19501816A1 (en) * 1995-01-21 1996-07-25 Koerting Ag Radial blower for blow burner

Also Published As

Publication number Publication date
EP1002957B1 (en) 2003-08-13
EP1002957A2 (en) 2000-05-24
ATE247231T1 (en) 2003-08-15
ES2200457T3 (en) 2004-03-01
DE59906574D1 (en) 2003-09-18
DE29820767U1 (en) 1999-01-14

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