FR2445904A1 - Perfectionnements apportes aux turbopompes - Google Patents

Perfectionnements apportes aux turbopompes

Info

Publication number
FR2445904A1
FR2445904A1 FR8000134A FR8000134A FR2445904A1 FR 2445904 A1 FR2445904 A1 FR 2445904A1 FR 8000134 A FR8000134 A FR 8000134A FR 8000134 A FR8000134 A FR 8000134A FR 2445904 A1 FR2445904 A1 FR 2445904A1
Authority
FR
France
Prior art keywords
central
radially inward
conical screw
screw rotor
low pressure
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Withdrawn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
FR8000134A
Other languages
English (en)
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of FR2445904A1 publication Critical patent/FR2445904A1/fr
Withdrawn legal-status Critical Current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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2277—Rotors specially for centrifugal pumps with special measures for increasing NPSH or dealing with liquids near boiling-point
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • F04D29/0416—Axial thrust balancing balancing pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

L'invention a trait à des perfectionnements apportés aux turbopompes. Elle a pour objet une turbopompe possédant un carter 30 à l'intérieur duquel peut tourner une turbine 33 pour délivrer du fluide à une sortie 32 en forme de volute. Des faces opposées du carter 30 et de la turbine 33 délimitent des étranglements d'écoulement 43, 46 entre la sortie 32 et une zone à basse pression 48. Entre les étranglements 43, 46 se trouve un volume annulaire 47, dans lequel la pression est fonction des positions axiales relatives de la turbine 33 et du carter 30, des variations de cette pression s'opposant au déplacement axial de la turbine 33. Le fluide se trouvant dans la zone 48 est retourné à l'orifice de sortie 32 par un passage 49 dans la turbine 33. Application notamment à l'alimentation en carburant de moteurs d'aéronefs.
FR8000134A 1979-01-06 1980-01-04 Perfectionnements apportes aux turbopompes Withdrawn FR2445904A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7900490 1979-01-06

Publications (1)

Publication Number Publication Date
FR2445904A1 true FR2445904A1 (fr) 1980-08-01

Family

ID=10502363

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8000134A Withdrawn FR2445904A1 (fr) 1979-01-06 1980-01-04 Perfectionnements apportes aux turbopompes

Country Status (4)

Country Link
JP (1) JPS5593999A (fr)
DE (1) DE3000344A1 (fr)
FR (1) FR2445904A1 (fr)
IT (1) IT1130164B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19808311B4 (de) * 1998-02-27 2007-11-08 Armin Stelzig Einrichtung zur Aufladung von Verbrennungsmotoren mit einem Verdichtergebläse
DE102007044646A1 (de) * 2007-09-18 2009-03-26 Ksb Aktiengesellschaft Laufradbefestigung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR379125A (fr) * 1907-06-21 1907-10-25 Wilhelm Heinrich Eyermann équilibrage de la pression axiale dans les turbines, pompes rotatives et compresseurs
DE325196C (de) * 1920-09-14 Aeg Achsialdruckausgleichvorrichtung fuer Zentrifugalpumpen
FR526930A (fr) * 1921-09-30 1921-10-15 Paul Joseph Charles Marechal Perfectionnements aux turbo-machines
DE1528719A1 (de) * 1965-07-24 1971-11-04 Halbergerhuette Gmbh Entlastungseinrichtung fuer mehrstufige Kreiselpumpen
FR2101348A5 (fr) * 1970-08-06 1972-03-31 Nikkiso Co Ltd
US4086020A (en) * 1974-06-07 1978-04-25 Hitachi, Ltd. Hydraulic machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325196C (de) * 1920-09-14 Aeg Achsialdruckausgleichvorrichtung fuer Zentrifugalpumpen
FR379125A (fr) * 1907-06-21 1907-10-25 Wilhelm Heinrich Eyermann équilibrage de la pression axiale dans les turbines, pompes rotatives et compresseurs
FR526930A (fr) * 1921-09-30 1921-10-15 Paul Joseph Charles Marechal Perfectionnements aux turbo-machines
DE1528719A1 (de) * 1965-07-24 1971-11-04 Halbergerhuette Gmbh Entlastungseinrichtung fuer mehrstufige Kreiselpumpen
FR2101348A5 (fr) * 1970-08-06 1972-03-31 Nikkiso Co Ltd
US4086020A (en) * 1974-06-07 1978-04-25 Hitachi, Ltd. Hydraulic machine

Also Published As

Publication number Publication date
JPS5593999A (en) 1980-07-16
DE3000344A1 (de) 1980-07-24
IT8019022A0 (it) 1980-01-03
IT1130164B (it) 1986-06-11

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Legal Events

Date Code Title Description
ST Notification of lapse