SE7500897L - - Google Patents

Info

Publication number
SE7500897L
SE7500897L SE7500897A SE7500897A SE7500897L SE 7500897 L SE7500897 L SE 7500897L SE 7500897 A SE7500897 A SE 7500897A SE 7500897 A SE7500897 A SE 7500897A SE 7500897 L SE7500897 L SE 7500897L
Authority
SE
Sweden
Prior art keywords
stage
fuel
positive displacement
pump
inlet flow
Prior art date
Application number
SE7500897A
Other languages
Unknown language ( )
Other versions
SE404541B (en
Inventor
P Cooper
Original Assignee
Trw Inc
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 Trw Inc filed Critical Trw Inc
Publication of SE7500897L publication Critical patent/SE7500897L/
Publication of SE404541B publication Critical patent/SE404541B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/12—Combinations of two or more pumps the pumps being of different types at least one pump being of the rotary-piston positive-displacement type
    • 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
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
    • F04D9/06—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

An aircraft fuel supply system has a two-stage fuel pump having a first centrifugal booster stage receiving a main inlet flow stream and a second positive displacement pumping stage and is combined with an eductor pump for evacuating liquid and vapor from high points in the fuel system and for compressing the fluid acted upon to a volume capable of being digested. A flow impeller means constituting a third pump receives the eductor pump discharge completely independently of the main inlet flow stream and directs the fuel acted upon back into the main stream ahead of the positive displacement stage, thereby to prevent vapor lock of the positive displacement stage.
SE7500897A 1974-01-30 1975-01-28 AIRCRAFT FUEL SUPPLY SYSTEM SE404541B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US437899A US3894813A (en) 1974-01-30 1974-01-30 Aircraft fuel supply system having a dual stream tow-phase fluid pump

Publications (2)

Publication Number Publication Date
SE7500897L true SE7500897L (en) 1975-07-31
SE404541B SE404541B (en) 1978-10-09

Family

ID=23738390

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7500897A SE404541B (en) 1974-01-30 1975-01-28 AIRCRAFT FUEL SUPPLY SYSTEM

Country Status (7)

Country Link
US (1) US3894813A (en)
JP (1) JPS5217184B2 (en)
CA (1) CA1012780A (en)
DE (1) DE2503823A1 (en)
FR (1) FR2259012B1 (en)
GB (1) GB1455533A (en)
SE (1) SE404541B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3409463C2 (en) * 1984-03-15 1986-06-26 Grundfos A/S, Bjerringbro Flow pump, especially centrifugal pump
JPS6121535U (en) * 1984-07-13 1986-02-07 株式会社 サカエプロセス baby bottle
GB8925402D0 (en) * 1989-11-10 1989-12-28 British Hydromechanics Pumping liquid/gas mixture
FR2699986B1 (en) * 1992-12-29 1995-02-24 Inst Francais Du Petrole Device and method for transferring a multiphase type effluent in a single pipe.
US9482225B2 (en) * 2012-06-04 2016-11-01 Honeywell International Inc. Gear pump, pumping apparatus including the same, and aircraft fuel system including gear pump

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466792A (en) * 1947-01-24 1949-04-12 F E Myers & Bro Company Jet pumping system and apparatus
US2533028A (en) * 1948-11-24 1950-12-05 Ingersoll Rand Co Pumping system
US2845028A (en) * 1954-10-25 1958-07-29 Jacuzzi Bros Inc Shallow well expanded output pump
GB960736A (en) * 1962-03-08 1964-06-17 Abrasive Dev Improvements in or relating to centrifugal pumps
US3387644A (en) * 1966-09-15 1968-06-11 Mc Donnell Douglas Corp Fuel vapor and air eductor system
US3532441A (en) * 1968-09-04 1970-10-06 Chandler Evans Inc Pumps with vapor handling element
US3551073A (en) * 1968-12-16 1970-12-29 Chandler Evans Inc Pumping system with improved jet inducer
GB1353010A (en) * 1970-08-25 1974-05-15 Plessey Co Ltd Systems for the supply of liquid to a consumer more particularly of liquid fuel to gasturbine engines
GB1402996A (en) * 1971-10-28 1975-08-13 Plessey Co Ltd Fuel-supply systems for gas-turbine engines

Also Published As

Publication number Publication date
FR2259012B1 (en) 1980-04-11
DE2503823A1 (en) 1975-08-21
FR2259012A1 (en) 1975-08-22
US3894813A (en) 1975-07-15
CA1012780A (en) 1977-06-28
SE404541B (en) 1978-10-09
JPS5217184B2 (en) 1977-05-13
JPS50124010A (en) 1975-09-29
GB1455533A (en) 1976-11-10

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