SE7904104L - MOVING PUMP - Google Patents

MOVING PUMP

Info

Publication number
SE7904104L
SE7904104L SE7904104A SE7904104A SE7904104L SE 7904104 L SE7904104 L SE 7904104L SE 7904104 A SE7904104 A SE 7904104A SE 7904104 A SE7904104 A SE 7904104A SE 7904104 L SE7904104 L SE 7904104L
Authority
SE
Sweden
Prior art keywords
stage
line
diaphragm
chamber
pressure
Prior art date
Application number
SE7904104A
Other languages
Unknown language ( )
Swedish (sv)
Original Assignee
Ludi Roger
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 Ludi Roger filed Critical Ludi Roger
Publication of SE7904104L publication Critical patent/SE7904104L/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/02Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00Feeding or distributing other fuel to combustion apparatus
    • F23K5/02Liquid fuel
    • F23K5/14Details thereof
    • F23K5/142Fuel pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

A two-stage pump for maintaining a constant delivery rate independently of viscosity fluctuations has a first stage e.g. a gear pump 2, which supplies fluid e.g. fuel oil, to an intermediate chamber 8. A second stage e.g. a gear pump 4, delivers a smaller quantity of fluid from the chamber 8 to a delivery line 11. The line 11 and a return line 9 from the chamber 8 are connected to opposite sides 14, 15 of a diaphragm 13. The fluid flows through throttling orifices 21, 22 regulated by the diaphragm. The diaphragm regulates the pressure differential in the lines 9, 11 to zero. Thus there is a zero pressure-gradient at the second stage, so that the viscosity changes have no effect on the delivery rate. The line 9 may contain a pressure-relief valve 17; and the second stage may be driven through reduction gears 3. <IMAGE>
SE7904104A 1978-05-11 1979-05-10 MOVING PUMP SE7904104L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH516078 1978-05-11

Publications (1)

Publication Number Publication Date
SE7904104L true SE7904104L (en) 1979-11-12

Family

ID=4288925

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7904104A SE7904104L (en) 1978-05-11 1979-05-10 MOVING PUMP

Country Status (5)

Country Link
DE (1) DE2918398A1 (en)
FR (1) FR2425564A1 (en)
GB (1) GB2020749A (en)
IT (1) IT1115198B (en)
SE (1) SE7904104L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700680A (en) * 1984-05-08 1987-10-20 Teledyne Industries, Inc. Two stage fuel pump
DE3937900A1 (en) * 1989-07-13 1991-01-17 Lenhardt Maschinenbau DEVICE FOR CONVEYING LIQUID OR PASTOES SUBSTANCES
CN108678948B (en) * 2018-04-28 2020-01-03 河南航天液压气动技术有限公司 Hydraulic system and gear pump thereof
CN108612651A (en) * 2018-07-13 2018-10-02 杜马司科学仪器(江苏)有限公司 A kind of vacuum liquid discharging pump and vacuum distillation apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB182154A (en) * 1921-01-28 1922-06-28 Vickers Ltd Improvements in or relating to pumping devices
US1881300A (en) * 1928-10-01 1932-10-04 Barmag Barmer Maschf Spinning pump
FR838565A (en) * 1937-06-02 1939-03-09 Constant flow spinning pump
US2974600A (en) * 1956-04-18 1961-03-14 Charles H Rystrom Pumping system
US3515164A (en) * 1968-10-16 1970-06-02 Servoflo Corp Flow delivery system

Also Published As

Publication number Publication date
FR2425564A1 (en) 1979-12-07
DE2918398A1 (en) 1979-11-15
IT7922546A0 (en) 1979-05-10
IT1115198B (en) 1986-02-03
GB2020749A (en) 1979-11-21

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