ATE199275T1 - PUMP WITH A CUTTER - Google Patents

PUMP WITH A CUTTER

Info

Publication number
ATE199275T1
ATE199275T1 AT97118599T AT97118599T ATE199275T1 AT E199275 T1 ATE199275 T1 AT E199275T1 AT 97118599 T AT97118599 T AT 97118599T AT 97118599 T AT97118599 T AT 97118599T AT E199275 T1 ATE199275 T1 AT E199275T1
Authority
AT
Austria
Prior art keywords
impeller
conical surface
cutter
pump
blades
Prior art date
Application number
AT97118599T
Other languages
German (de)
Inventor
Max Prof Dr-Ing Ludewig
Achim Dipl-Ing Fh Nitsche
Original Assignee
Orpu 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 Orpu Gmbh filed Critical Orpu Gmbh
Application granted granted Critical
Publication of ATE199275T1 publication Critical patent/ATE199275T1/en

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
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
    • B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Food Science & Technology (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Massaging Devices (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Road Repair (AREA)

Abstract

Blade (4) or blades are mounted to rotate with the impeller and act against mating blades (5), formed in the conical surface (6a) of a fixed cover (6) by cut-outs (9) running radial to the conical surface. The cutting blade is positioned at an angle (10) to the direction of rotation (11) of the impeller and returns to rotation direction increasingly with radial distance from the centre (13).
AT97118599T 1997-10-25 1997-10-25 PUMP WITH A CUTTER ATE199275T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97118599A EP0911527B1 (en) 1997-10-25 1997-10-25 Pump with a cutting device

Publications (1)

Publication Number Publication Date
ATE199275T1 true ATE199275T1 (en) 2001-03-15

Family

ID=8227523

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97118599T ATE199275T1 (en) 1997-10-25 1997-10-25 PUMP WITH A CUTTER

Country Status (6)

Country Link
EP (1) EP0911527B1 (en)
AT (1) ATE199275T1 (en)
DE (1) DE59703018D1 (en)
DK (1) DK0911527T3 (en)
ES (1) ES2155647T3 (en)
PT (1) PT911527E (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6790016B2 (en) * 2002-02-04 2004-09-14 Ching-Yuan Chiang Motor and its blade unit
DE102004007739A1 (en) * 2004-02-16 2005-08-25 Wilo Ag Cutting tool for centrifugal pump, has convex lateral surface located opposite concave fixed counter surface
US7390179B2 (en) 2004-12-21 2008-06-24 Emerson Climate Technologies, Inc. Scroll machine having counterweights with changeable cavity
DE102011077545A1 (en) * 2011-06-15 2012-12-20 Ksb Aktiengesellschaft Centrifugal pump with integrated cutting unit
DE102011112580B4 (en) 2011-09-08 2014-03-20 Schmalenberger Gmbh & Co. Kg Self-priming pump with cutting unit
CN103557154B (en) * 2013-11-21 2016-04-13 重庆宏美科技有限公司 A kind of water pump machine
CN104888907A (en) * 2015-04-15 2015-09-09 江苏大学 Cutter head having radial cutting and stirring functions used for pump
CN110541830B (en) * 2019-08-28 2020-11-24 中国计量大学 Self-suction sewage pump with double-opening ring seal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB608741A (en) * 1946-05-09 1948-09-20 Wilfred Nathan Waterworth Pier Disintegrating unit for sewage or the like
DE1528853A1 (en) 1962-10-12 1969-12-04 Schade Geb Feissel Hertha Centrifugal pump for contaminated fluids with crushing device
CH411584A (en) * 1964-07-10 1966-04-15 Kolb Eugen Ag Centrifugal pump for pumping contaminated liquids
DE3340295A1 (en) * 1983-11-08 1985-05-15 Albert 5204 Lohmar Blum Pump for the delivery of liquids intermingled with lumpy contaminants
DE4438841C2 (en) 1994-11-02 1999-05-27 Orpu Gmbh Pump with a cutting device

Also Published As

Publication number Publication date
DE59703018D1 (en) 2001-03-29
EP0911527A1 (en) 1999-04-28
EP0911527B1 (en) 2001-02-21
PT911527E (en) 2001-07-31
ES2155647T3 (en) 2001-05-16
DK0911527T3 (en) 2001-06-11

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee