EP1479919A3 - Convertible transfer pump - Google Patents

Convertible transfer pump Download PDF

Info

Publication number
EP1479919A3
EP1479919A3 EP04010771A EP04010771A EP1479919A3 EP 1479919 A3 EP1479919 A3 EP 1479919A3 EP 04010771 A EP04010771 A EP 04010771A EP 04010771 A EP04010771 A EP 04010771A EP 1479919 A3 EP1479919 A3 EP 1479919A3
Authority
EP
European Patent Office
Prior art keywords
transfer pump
pump body
liquids
diffuser
air
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
EP04010771A
Other languages
German (de)
French (fr)
Other versions
EP1479919B1 (en
EP1479919A2 (en
Inventor
Antonio Velo
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.)
Velo SpA
Original Assignee
Velo SpA
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 Velo SpA filed Critical Velo SpA
Publication of EP1479919A2 publication Critical patent/EP1479919A2/en
Publication of EP1479919A3 publication Critical patent/EP1479919A3/en
Application granted granted Critical
Publication of EP1479919B1 publication Critical patent/EP1479919B1/en
Anticipated expiration legal-status Critical
Active 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
    • F04D31/00—Pumping liquids and elastic fluids at the same time
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps

Abstract

Rotary pump for liquids comprising a pump body (2) with a rotary portion that may include either a single or several stages to the purpose of attaining a head of at least 3 kg/cm<2>. When air at a lower pressure than the pressure of the ambient air is to be blown into the liquids, a convergent diffuser (30) is installed upstream of the pump body (2) and, furthermore, a point situated between the outflow section (34) of such diffuser and the rotary portion of the pump body (2) is connected with the outside air. <IMAGE>
EP04010771A 2003-05-20 2004-05-06 Convertible transfer pump Active EP1479919B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000077A ITTV20030077A1 (en) 2003-05-20 2003-05-20 CONVERTIBLE TRANSFER PUMP.
ITTV20030077 2003-05-20

Publications (3)

Publication Number Publication Date
EP1479919A2 EP1479919A2 (en) 2004-11-24
EP1479919A3 true EP1479919A3 (en) 2004-12-08
EP1479919B1 EP1479919B1 (en) 2006-04-05

Family

ID=33042736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04010771A Active EP1479919B1 (en) 2003-05-20 2004-05-06 Convertible transfer pump

Country Status (4)

Country Link
EP (1) EP1479919B1 (en)
AT (1) ATE322620T1 (en)
DE (1) DE602004000585D1 (en)
IT (1) ITTV20030077A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH237063A (en) * 1942-02-14 1945-03-31 Aschaffenburger Zellstoffwerke Process and system for the simultaneous suction and delivery of air and water with a centrifugal pump.
US3689237A (en) * 1970-02-19 1972-09-05 North American Utility Constru Fuel gas pipeline system
US4641679A (en) * 1983-12-30 1987-02-10 Institute Francais Du Petrole Feed device for a two-phase fluid pump and a hydrocarbon producing installation with such feed device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH237063A (en) * 1942-02-14 1945-03-31 Aschaffenburger Zellstoffwerke Process and system for the simultaneous suction and delivery of air and water with a centrifugal pump.
US3689237A (en) * 1970-02-19 1972-09-05 North American Utility Constru Fuel gas pipeline system
US4641679A (en) * 1983-12-30 1987-02-10 Institute Francais Du Petrole Feed device for a two-phase fluid pump and a hydrocarbon producing installation with such feed device

Also Published As

Publication number Publication date
EP1479919B1 (en) 2006-04-05
DE602004000585D1 (en) 2006-05-18
ITTV20030077A1 (en) 2004-11-21
EP1479919A2 (en) 2004-11-24
ATE322620T1 (en) 2006-04-15

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