ATE130909T1 - Kombinierte zentrifugal- und vakuumpumpe. - Google Patents

Kombinierte zentrifugal- und vakuumpumpe.

Info

Publication number
ATE130909T1
ATE130909T1 AT91308102T AT91308102T ATE130909T1 AT E130909 T1 ATE130909 T1 AT E130909T1 AT 91308102 T AT91308102 T AT 91308102T AT 91308102 T AT91308102 T AT 91308102T AT E130909 T1 ATE130909 T1 AT E130909T1
Authority
AT
Austria
Prior art keywords
vacuum pump
pumping chamber
centrifugal
annular volume
intermediate wall
Prior art date
Application number
AT91308102T
Other languages
English (en)
Inventor
Reijo Vesala
Vesa Vikman
Original Assignee
Ahlstroem Oy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24316766&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE130909(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ahlstroem Oy filed Critical Ahlstroem Oy
Application granted granted Critical
Publication of ATE130909T1 publication Critical patent/ATE130909T1/de

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
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating
    • 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
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/13—Kind or type mixed, e.g. two-phase fluid
    • F05B2210/132—Pumps with means for separating and evacuating the gaseous phase

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Centrifugal Separators (AREA)
  • Paper (AREA)
AT91308102T 1990-09-07 1991-09-04 Kombinierte zentrifugal- und vakuumpumpe. ATE130909T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/579,405 US5151010A (en) 1990-09-07 1990-09-07 Combined centrifugal and vacuum pump

Publications (1)

Publication Number Publication Date
ATE130909T1 true ATE130909T1 (de) 1995-12-15

Family

ID=24316766

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91308102T ATE130909T1 (de) 1990-09-07 1991-09-04 Kombinierte zentrifugal- und vakuumpumpe.

Country Status (5)

Country Link
US (1) US5151010A (de)
EP (1) EP0474478B1 (de)
AT (1) ATE130909T1 (de)
DE (1) DE69114959T2 (de)
ES (1) ES2080910T3 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023193A (en) * 1986-07-16 1991-06-11 National Semiconductor Corp. Method for simultaneously fabricating bipolar and complementary field effect transistors using a minimal number of masks
SE468293C (sv) * 1991-12-03 1996-09-09 Kvaerner Pulping Tech Pump med inbyggd vakuumpump
PT830511E (pt) * 1995-06-05 2002-04-29 Sulzer Pumpen Ag Processo para controlar o funcionamento de uma combinacao de uma bomba centrifuga e uma bomba de vacuo e uma bomba centrifuga de separacao dos gases
US6120252A (en) * 1995-12-27 2000-09-19 Ahlstrom Machinery Corporation Gas separation control in a centrifugal pump/vacuum pump
SE9802178L (sv) * 1998-06-17 1999-04-12 Sunds Defibrator Ind Ab Centrifugalpump för pumpning av en massasuspention
US6241481B1 (en) * 1998-09-09 2001-06-05 Chrysler Corporation Water pump shaft seal assembly for in-line water and power steering pumps
SE512984C2 (sv) * 1998-10-13 2000-06-12 Valmet Fibertech Ab Massapump
US6582193B1 (en) 2000-07-27 2003-06-24 Daimler Chrysler Corp Composite water and power steering pump assembly
SE518694C2 (sv) * 2001-03-21 2002-11-05 Metso Paper Inc Pumpanordning
SE519641C2 (sv) 2001-08-08 2003-03-25 Metso Paper Inc Kombinerad centrifugal- och vakuumpump för pumpning av massa
CN100365288C (zh) * 2005-10-14 2008-01-30 江苏大学 一种用于离心泵的背叶片结构
AT510538B1 (de) * 2010-09-27 2013-02-15 Andritz Ag Maschf Zentrifugalpumpe
CA2915631C (en) 2013-06-21 2020-06-02 Flow Control Llc. Debris removing impeller backvane
US10968471B2 (en) 2015-10-08 2021-04-06 Sulzer Management Ag Method of and arrangement for treating biomass

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR852435A (fr) * 1938-04-09 1940-02-01 Burckhardt Ag Maschf Pompe rotative à roue à ailettes, à anneau de liquide, pour milieux gazeux
US4776758A (en) * 1987-07-06 1988-10-11 Kamyr Ab Combined fluidizing and vacuum pump
US4877368A (en) * 1988-11-08 1989-10-31 A. Ahlstrom Corporation Fluidizing centrifugal pump

Also Published As

Publication number Publication date
EP0474478A3 (en) 1992-04-22
EP0474478B1 (de) 1995-11-29
DE69114959D1 (de) 1996-01-11
ES2080910T3 (es) 1996-02-16
US5151010A (en) 1992-09-29
EP0474478A2 (de) 1992-03-11
DE69114959T2 (de) 1996-04-18

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EEIH Change in the person of patent owner
EELA Cancelled due to lapse of time