EP0947700A1 - Pompe Moineau - Google Patents

Pompe Moineau Download PDF

Info

Publication number
EP0947700A1
EP0947700A1 EP99103358A EP99103358A EP0947700A1 EP 0947700 A1 EP0947700 A1 EP 0947700A1 EP 99103358 A EP99103358 A EP 99103358A EP 99103358 A EP99103358 A EP 99103358A EP 0947700 A1 EP0947700 A1 EP 0947700A1
Authority
EP
European Patent Office
Prior art keywords
eccentric screw
coupling rod
connecting shaft
screw pump
pump according
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
EP99103358A
Other languages
German (de)
English (en)
Other versions
EP0947700B1 (fr
Inventor
Gordon L. Fenton
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.)
Seepex GmbH
Original Assignee
Seepex Seeberger GmbH and Co
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 Seepex Seeberger GmbH and Co filed Critical Seepex Seeberger GmbH and Co
Publication of EP0947700A1 publication Critical patent/EP0947700A1/fr
Application granted granted Critical
Publication of EP0947700B1 publication Critical patent/EP0947700B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics

Definitions

  • the invention relates to an eccentric screw pump, with an eccentric screw rotor mounted in an eccentric screw stator, with one in one to the eccentric screw stator connected suction housing Coupling rod and one in one to the suction housing connected seal housing, to a Drive shaft leading connecting shaft.
  • Eccentric screw pumps are the eccentric screw rotor, the coupling rod and the connecting shaft regularly Made of stainless steel and with the interposition of Joints connected together. At least the eccentric screw rotor often receives an additional one Surface coating or is polished.
  • For the Articulated connections generally become several components and elastic cuffs needed - such Construction is in constructive and material terms complex. The invention seeks to remedy this.
  • the invention has for its object a Eccentric screw pump of the embodiment described above creating an extremely simple, functional and also cost-saving Excellent design.
  • the invention solves this problem with a generic one Eccentric screw pump in that the eccentric screw rotor, the coupling rod and the connecting shaft as one-piece component made of thermoplastic are executed. After further recommendation of the invention points the component in the transition areas from the Eccentric screw rotor to the coupling rod and from the Coupling rod to the connecting shaft constrictions, e.g. concave diameter reductions, which the otherwise replace required joints. - These measures of Invention have the consequence that in the invention Eccentric screw pump only one rotating Plastic unit for power transmission and product promotion is needed.
  • an aseptic Realized construction which for the promotion of particularly suitable for food and pharmaceutical products is, especially since the eccentric screw pump according to the invention due to the one-piece construction of eccentric screw rotor, Coupling rod and connecting shaft made of plastic through special hygienic cleanliness and optimal Excellent corrosion resistance.
  • the plastic construction according to the invention on the one hand, sufficient bending stiffness to generate high pump pressures up to 24 bar, for example, on the other hand nevertheless has such a bending elasticity, that the usual hinge connections between Eccentric screw rotor, coupling rod and connecting shaft can be omitted and nevertheless achieved joint function becomes. This joint function is supported by the corresponding Cross section of concave constrictions between eccentric screw rotor, Coupling rod and connecting shaft optimized.
  • the eccentric screw rotor can be made of plastic even then if the eccentric screw stator is also made of plastic exists, regardless of whether it is an elastomer or an inelastic plastic.
  • a construction realized due to the one-piece plastic component for the rotating pump train through a distinguishes simple and functional construction, which is also inexpensive.
  • the special one Significance is provided that the one-piece Component made of glass fiber reinforced plastic and consequently enables a particularly high power transmission and is particularly true to size.
  • the one-piece component Polyamide, e.g. Polyamide 66.
  • This plastic stands out due to elastic rigidity, high abrasion resistance and Dimensional stability is beyond sterilizable and has barrier properties against Flavorings. Therefore, this plastic is especially for the one-piece construction of eccentric screw rotor, Coupling rod and connecting shaft suitable, especially since he in those properties physically and chemically includes which for the pump line of an eccentric screw pump needed to promote especially pharmaceutical and food products, but also Cosmetics and paint products serves.
  • the one-piece component can also be made of polytetrafluoroethylene exist, which is characterized by special Excellent lubricating properties.
  • a Embodiment with a graphite filling of 10% to 15% prefers.
  • the pump drive with the drive shaft 7 is only indicated.
  • the eccentric screw rotor 3, the coupling rod 5 and the Connecting shaft 8 are made as a one-piece component thermoplastic plastic.
  • the plastic component points in the transition areas from the Eccentric screw rotor 3 to the coupling rod 5 and from the coupling rod 5 to the connecting shaft 8 diameter reductions on what else in these areas replace the required articulated connections.
  • the exemplary embodiment concerns these diameter reductions from concave cross-sections 9.
  • the one-piece plastic component 3, 5, 8 can be made of glass fiber reinforced Plastic consist of power transmission on the one hand and the dimensional accuracy of this on the other hand to optimize the rotating pump line.
  • the embodiment consists of the one-piece plastic component 3, 5, 8 made of polyamide, namely polyamide 66 and leaves easily manufactured by injection molding. About that is also a machining and the Compliance with the finest tolerances possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)
EP99103358A 1998-03-28 1999-02-20 Pompe Moineau Expired - Lifetime EP0947700B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813999A DE19813999C1 (de) 1998-03-28 1998-03-28 Exzenterschneckenpumpe
DE19813999 1998-03-28

Publications (2)

Publication Number Publication Date
EP0947700A1 true EP0947700A1 (fr) 1999-10-06
EP0947700B1 EP0947700B1 (fr) 2004-01-28

Family

ID=7862839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99103358A Expired - Lifetime EP0947700B1 (fr) 1998-03-28 1999-02-20 Pompe Moineau

Country Status (7)

Country Link
US (1) US6155807A (fr)
EP (1) EP0947700B1 (fr)
JP (1) JPH11311187A (fr)
CN (1) CN1162622C (fr)
AT (1) ATE258651T1 (fr)
CA (1) CA2264361A1 (fr)
DE (2) DE19813999C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017186495A1 (fr) * 2016-04-28 2017-11-02 BSH Hausgeräte GmbH Appareil électroménager

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10243675B3 (de) * 2002-09-20 2004-01-29 Netzsch-Mohnopumpen Gmbh Exzenterschneckenpumpe mit Austauscheinheit
DE10335966B3 (de) * 2003-08-04 2004-08-26 Netzsch-Mohnopumpen Gmbh Exzenterschneckenpumpe
DE102004060222A1 (de) * 2004-12-15 2006-06-29 Netzsch-Mohnopumpen Gmbh Exzenterschneckenpumpe in Kompaktbauweise
US7530217B2 (en) * 2005-12-16 2009-05-12 General Electric Company Axial flow positive displacement gas generator with combustion extending into an expansion section
US7726115B2 (en) * 2006-02-02 2010-06-01 General Electric Company Axial flow positive displacement worm compressor
US20070237642A1 (en) * 2006-04-10 2007-10-11 Murrow Kurt D Axial flow positive displacement worm pump
CN100507274C (zh) * 2006-11-03 2009-07-01 江苏大学 电动机螺杆泵
JP5070515B2 (ja) * 2007-03-08 2012-11-14 兵神装備株式会社 ロータ駆動機構及びポンプ装置
US8708643B2 (en) 2007-08-14 2014-04-29 General Electric Company Counter-rotatable fan gas turbine engine with axial flow positive displacement worm gas generator
US20090211474A1 (en) * 2008-02-22 2009-08-27 Atwater Richard G Printing press inking systems
US7854111B2 (en) * 2008-03-07 2010-12-21 General Electric Company Axial flow positive displacement turbine
US20100029525A1 (en) 2008-07-31 2010-02-04 Chevron Oronite Company Llc Antiwear hydraulic fluid composition with useful emulsifying and rust prevention properties
CN105378781A (zh) * 2013-07-09 2016-03-02 兵神装备株式会社 化妆品定制系统以及调配系统
CN105408631B (zh) * 2014-05-16 2017-10-13 广州华力新能源发展有限公司 单螺杆泵及使用该单螺杆泵的风力抽水系统
CN104454522A (zh) * 2014-12-14 2015-03-25 张成功 串联式两级机械密封装置
BR102019005114B1 (pt) * 2019-03-15 2023-12-05 Leandro José Agostini Bomba de cavidades progressivas para indústria tintométrica
US11332978B1 (en) * 2020-11-11 2022-05-17 Halliburton Energy Services, Inc. Offset coupling for mud motor drive shaft
DE102022127309A1 (de) 2022-10-18 2024-04-18 Visec (Asia) Technology Pte Ltd. Verfahren und Spritzgussform zur Herstellung einer Rotoreinheit für eine Exzenterschneckenpumpe sowie eine Rotoreinheit, eine Statoreinheit und eine Exzenterschneckenpumpe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2040748A1 (de) * 1970-08-17 1972-02-24 Willy John Schraubenpumpe mit Drehstab
US5108273A (en) * 1990-08-30 1992-04-28 Robbins & Myers, Inc. Helical metering pump having different sized rotors
DE4303463A1 (de) * 1993-02-06 1994-08-11 Abb Patent Gmbh Fördervorrichtung
WO1997040273A1 (fr) * 1996-04-24 1997-10-30 Wood Steven M Pompes a cavite progressive comportant des materiaux composites

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844800A (en) * 1969-02-14 1974-10-29 Bendix Corp Friction material
DE3424212A1 (de) * 1984-06-30 1986-01-23 Arnold 3167 Burgdorf Jäger Stator fuer exzenterschneckenpumpen
DE4330226C1 (de) * 1993-09-07 1994-09-08 Bornemann J H Gmbh & Co Exzenterschneckenpumpe
US5769618A (en) * 1995-09-25 1998-06-23 Heishin Sobi Kabushiki Kaisha Uniaxial eccentric screw pump having a flexible plastic shaft

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2040748A1 (de) * 1970-08-17 1972-02-24 Willy John Schraubenpumpe mit Drehstab
US5108273A (en) * 1990-08-30 1992-04-28 Robbins & Myers, Inc. Helical metering pump having different sized rotors
DE4303463A1 (de) * 1993-02-06 1994-08-11 Abb Patent Gmbh Fördervorrichtung
WO1997040273A1 (fr) * 1996-04-24 1997-10-30 Wood Steven M Pompes a cavite progressive comportant des materiaux composites

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017186495A1 (fr) * 2016-04-28 2017-11-02 BSH Hausgeräte GmbH Appareil électroménager

Also Published As

Publication number Publication date
CN1162622C (zh) 2004-08-18
DE59908390D1 (de) 2004-03-04
US6155807A (en) 2000-12-05
ATE258651T1 (de) 2004-02-15
DE19813999C1 (de) 1999-11-25
JPH11311187A (ja) 1999-11-09
CA2264361A1 (fr) 1999-09-28
CN1233714A (zh) 1999-11-03
EP0947700B1 (fr) 2004-01-28

Similar Documents

Publication Publication Date Title
EP0947700A1 (fr) Pompe Moineau
EP1778979A1 (fr) Pompe a vis sans fin excentrique ayant des surfaces d'etancheite coniques
DE4031554A1 (de) Schlauchpumpe
DE102006036243A1 (de) Förderschnecke für Exzenterschneckenpumpe
EP2160965A1 (fr) Pompe à vis sans fin excentrique
DE102009037993B4 (de) Exzenterschneckenpumpe
DE4214752C2 (de) Ölpumpe
DE29812846U1 (de) Exzenterschneckenpumpe
DE102005039618A1 (de) Wellenschnittstelle
EP0713974B1 (fr) Pompe moineau
DE10243675B3 (de) Exzenterschneckenpumpe mit Austauscheinheit
DE2645933A1 (de) Excenterschraubenpumpe
DE102008036511B4 (de) Exzenterschneckenpumpe
DE2139013C2 (de) Exzenterschneckenpumpe
DE10243674B3 (de) Exzenterschneckenpumpe mit Reservestator
EP0677660B1 (fr) Pompe à engrenages
DE102008042233A1 (de) Exzenterschneckenpumpe sowie mechanisches Koppelelement für die Exzenterschnecke einer Exzenterschneckenpumpe
DE2347523B1 (de) Vorrichtung zum Anbau eines Motors,insbes. Elektromotors an einen Getriebekasten
DE10258666A1 (de) Tauchpumpeneinrichtung zur Verwendung in einem Bohrloch
DE102016207245A1 (de) Federstegkupplung und rotor für eine dosierpumpe eines hausgeräts
DE102016207247A1 (de) Exzenterschneckenpumpe
WO2020015873A1 (fr) Carter de pompe
WO2023104388A1 (fr) Joint universel à l'intérieur d'une unité tournante d'une pompe à vis excentrique
EP0744270A2 (fr) Machine à vis sans fin multiples ayant des éléments tournants dans le même sens ainsi que des éléments tournants en sens opposé
DE2901638C3 (fr)

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: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19991006

AKX Designation fees paid

Free format text: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

17Q First examination report despatched

Effective date: 20030526

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

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

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: 20040128

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20040128

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: 20040128

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: 20040128

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

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: 20040220

Ref country code: AT

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

Effective date: 20040220

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

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: 20040228

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

Ref country code: LI

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

Effective date: 20040229

Ref country code: CH

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

Effective date: 20040229

REF Corresponds to:

Ref document number: 59908390

Country of ref document: DE

Date of ref document: 20040304

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040310

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: 20040428

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: 20040428

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: 20040428

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

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: 20040509

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

BERE Be: lapsed

Owner name: SEEPEX SEEBERGER G.M.B.H. + CO

Effective date: 20040228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

ET Fr: translation filed
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: 20041029

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

Ref country code: PT

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

Effective date: 20040628

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

Ref country code: FR

Payment date: 20100226

Year of fee payment: 12

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

Ref country code: GB

Payment date: 20100218

Year of fee payment: 12

Ref country code: DE

Payment date: 20100202

Year of fee payment: 12

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

Effective date: 20110220

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20111102

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59908390

Country of ref document: DE

Effective date: 20110901

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

Ref country code: FR

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

Effective date: 20110228

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: 20110220

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

Ref country code: DE

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

Effective date: 20110901