EP1813819A3 - Centrifugal Pump - Google Patents

Centrifugal Pump Download PDF

Info

Publication number
EP1813819A3
EP1813819A3 EP07000756A EP07000756A EP1813819A3 EP 1813819 A3 EP1813819 A3 EP 1813819A3 EP 07000756 A EP07000756 A EP 07000756A EP 07000756 A EP07000756 A EP 07000756A EP 1813819 A3 EP1813819 A3 EP 1813819A3
Authority
EP
European Patent Office
Prior art keywords
gasket
shaft
outlet
centrifugal pump
seal
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
EP07000756A
Other languages
German (de)
French (fr)
Other versions
EP1813819A2 (en
EP1813819B1 (en
Inventor
Roland Stracke
Helmut Rückwardt
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.)
Wilo SE
Original Assignee
Wilo AG
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 Wilo AG filed Critical Wilo AG
Publication of EP1813819A2 publication Critical patent/EP1813819A2/en
Publication of EP1813819A3 publication Critical patent/EP1813819A3/en
Application granted granted Critical
Publication of EP1813819B1 publication Critical patent/EP1813819B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
    • F04D29/128—Shaft sealings using sealing-rings especially adapted for liquid pumps with special means for adducting cooling or sealing fluid
    • 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
    • F04D29/106—Shaft sealings especially adapted for liquid pumps

Abstract

The pump has a control leakage shaft seal (12) surrounded by a seal space (13) through which a partial current of conveyed fluid flows. A circular gasket (14) is fixed on a shaft (5) in axial direction between a rotor (4) and the control leakage shaft seal. The gasket for the fluid partial current has an outlet (19) that is connected with an outlet channel (17) leading to a rotor inlet (6). The outlet is provided between the shaft and a central opening of the gasket.
EP07000756A 2006-01-31 2007-01-16 Centrifugal Pump Active EP1813819B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006004266A DE102006004266A1 (en) 2006-01-31 2006-01-31 rotary pump

Publications (3)

Publication Number Publication Date
EP1813819A2 EP1813819A2 (en) 2007-08-01
EP1813819A3 true EP1813819A3 (en) 2008-02-27
EP1813819B1 EP1813819B1 (en) 2011-04-27

Family

ID=38024250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07000756A Active EP1813819B1 (en) 2006-01-31 2007-01-16 Centrifugal Pump

Country Status (3)

Country Link
EP (1) EP1813819B1 (en)
AT (1) ATE507395T1 (en)
DE (2) DE102006004266A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113357186A (en) * 2021-05-22 2021-09-07 中国计量大学 Structure of totally enclosed type water pump
CN113236599A (en) * 2021-05-22 2021-08-10 中国计量大学 Chemical pump structure capable of preventing liquid molecules conveyed in pump from leaking and with lift determined by motor
CN113202809A (en) * 2021-05-22 2021-08-03 中国计量大学 Structure of totally-enclosed water pump capable of preventing liquid molecules from leaking out of pump

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1120231A (en) * 1964-07-08 1968-07-17 Worthington Simpson Rotary pumps
DE3438662A1 (en) * 1984-10-22 1986-04-24 Sihi Gmbh & Co Kg, 2210 Itzehoe Turbine pump for hot media
DE8627766U1 (en) * 1986-10-17 1988-02-11 Sihi Gmbh & Co Kg
DE3825799A1 (en) * 1988-07-29 1990-02-01 Messer Griesheim Gmbh Centrifugal pump
DE3914652A1 (en) * 1989-05-03 1990-11-08 Sihi Gmbh & Co Kg CENTRIFUGAL PUMP
US5156522A (en) * 1990-04-30 1992-10-20 Exxon Production Research Company Deflector means for centrifugal pumps
DE19519799A1 (en) * 1994-05-31 1995-12-07 Ingersoll Dresser Pump Co Centrifugal pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2914652A1 (en) * 1979-04-11 1980-10-30 Kloeckner Humboldt Deutz Ag Compact hand-held microfiche reader - has two support plates hinged to grip microfiche with magnifying lens viewer
DE3432662C2 (en) * 1984-09-05 1986-10-16 Tanabe Machinery Co., Ltd., Tokio/Tokyo Device for detecting a nominal size of a box blank for a box manufacturing machine
DE8601166U1 (en) * 1986-01-18 1986-02-27 Sihi Gmbh & Co Kg, 2210 Itzehoe Pump for pumping hot water

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1120231A (en) * 1964-07-08 1968-07-17 Worthington Simpson Rotary pumps
DE3438662A1 (en) * 1984-10-22 1986-04-24 Sihi Gmbh & Co Kg, 2210 Itzehoe Turbine pump for hot media
DE8627766U1 (en) * 1986-10-17 1988-02-11 Sihi Gmbh & Co Kg
DE3825799A1 (en) * 1988-07-29 1990-02-01 Messer Griesheim Gmbh Centrifugal pump
DE3914652A1 (en) * 1989-05-03 1990-11-08 Sihi Gmbh & Co Kg CENTRIFUGAL PUMP
US5156522A (en) * 1990-04-30 1992-10-20 Exxon Production Research Company Deflector means for centrifugal pumps
DE19519799A1 (en) * 1994-05-31 1995-12-07 Ingersoll Dresser Pump Co Centrifugal pump

Also Published As

Publication number Publication date
EP1813819A2 (en) 2007-08-01
DE502007007033D1 (en) 2011-06-09
DE102006004266A1 (en) 2007-08-02
EP1813819B1 (en) 2011-04-27
ATE507395T1 (en) 2011-05-15

Similar Documents

Publication Publication Date Title
GB2442417A (en) Pressurized bearing system for submersible motor
WO2010122299A3 (en) Pump with a resilient seal
WO2011128502A3 (en) Liquid ring pump and method for operating a liquid ring pump
GB2444220B (en) Apparatus and method for controlling supply of barrier gas in a compressor module
MY155865A (en) A fan
GB2450061A (en) Rotor and nozzle assembly for a radial turbine and method of operation
WO2009018560A3 (en) Thrust and intake chamber for pump
GB2478259A (en) A compressor
ATE470093T1 (en) RADIAL SEALING DEVICE
MX2014001013A (en) Centrifugal impeller and turbomachine.
EP2397700A3 (en) Volute shaped pump casing for a centrifugal pump
WO2010091698A8 (en) Motor pump unit
ATE377152T1 (en) PUMP UNIT
US9574558B2 (en) High pressure gear pump with dual wall housing
EP1813819A3 (en) Centrifugal Pump
EA200900134A1 (en) POND PUMP
WO2011037697A3 (en) Gasification cooling system having seal
EP2128432A3 (en) Wind turbine assembly with axial air intake and radial air outlet
ATE409810T1 (en) VANE PUMP
PL2172654T3 (en) Centrifugal pump assembly
GB201212018D0 (en) Scroll pump
WO2007070596A3 (en) Fuel cell compressor system
WO2011149842A3 (en) Multiphase pump flow recirculation system
RU160826U1 (en) DEVICE FOR INCREASING THE CAVITATION RESERVE OF AXIAL PUMPS
WO2011058339A3 (en) Corrosion resistant shaft sealing for a vacuum pump

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

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 BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20080403

17Q First examination report despatched

Effective date: 20080609

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: WILO SE

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502007007033

Country of ref document: DE

Date of ref document: 20110609

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007007033

Country of ref document: DE

Effective date: 20110609

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110427

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110829

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110827

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110807

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110728

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20120130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007007033

Country of ref document: DE

Effective date: 20120130

BERE Be: lapsed

Owner name: WILO SE

Effective date: 20120131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120131

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 507395

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110727

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070116

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20150114

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160116

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230103

Year of fee payment: 17

Ref country code: DE

Payment date: 20221220

Year of fee payment: 17

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230615

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231219

Year of fee payment: 18