EP0148140A3 - Impeller for aeration of water tanks - Google Patents

Impeller for aeration of water tanks Download PDF

Info

Publication number
EP0148140A3
EP0148140A3 EP84850375A EP84850375A EP0148140A3 EP 0148140 A3 EP0148140 A3 EP 0148140A3 EP 84850375 A EP84850375 A EP 84850375A EP 84850375 A EP84850375 A EP 84850375A EP 0148140 A3 EP0148140 A3 EP 0148140A3
Authority
EP
European Patent Office
Prior art keywords
impeller
aeration
water tanks
vortexes
tip
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Withdrawn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
EP84850375A
Other languages
German (de)
French (fr)
Other versions
EP0148140A2 (en
Inventor
Hjalmar Fries
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.)
Xylem Water Solutions AB
Original Assignee
Flygt AB
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 Flygt AB filed Critical Flygt AB
Publication of EP0148140A2 publication Critical patent/EP0148140A2/en
Publication of EP0148140A3 publication Critical patent/EP0148140A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention concerns an impeller for mixing purposes.
The impeller has a leading edge angle which decreases from the hub and towards the tip, the tip vortexes then diminish and a more congruent division of the vortexes over the entire impeller blade is obtained.
EP84850375A 1983-12-19 1984-12-04 Impeller for aeration of water tanks Withdrawn EP0148140A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8307006 1983-12-19
SE8307006A SE8307006D0 (en) 1983-12-19 1983-12-19 PROPELLER FOR AIRING POOLS

Publications (2)

Publication Number Publication Date
EP0148140A2 EP0148140A2 (en) 1985-07-10
EP0148140A3 true EP0148140A3 (en) 1987-05-06

Family

ID=20353785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84850375A Withdrawn EP0148140A3 (en) 1983-12-19 1984-12-04 Impeller for aeration of water tanks

Country Status (2)

Country Link
EP (1) EP0148140A3 (en)
SE (1) SE8307006D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102974128B (en) * 2012-11-28 2014-11-19 中国科学院南京土壤研究所 Centrifugal stirring extraction tower

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No search, Declaration under Rule 45 EPC *

Also Published As

Publication number Publication date
SE8307006D0 (en) 1983-12-19
EP0148140A2 (en) 1985-07-10

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Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19841218

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE DE FR GB IT NL SE

17Q First examination report despatched

Effective date: 19880222

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: 19880705

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FRIES, HJALMAR