EP0195758A2 - Pompe de fluide - Google Patents

Pompe de fluide Download PDF

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Publication number
EP0195758A2
EP0195758A2 EP86850024A EP86850024A EP0195758A2 EP 0195758 A2 EP0195758 A2 EP 0195758A2 EP 86850024 A EP86850024 A EP 86850024A EP 86850024 A EP86850024 A EP 86850024A EP 0195758 A2 EP0195758 A2 EP 0195758A2
Authority
EP
European Patent Office
Prior art keywords
pump
tubular member
fluid
tube
tube member
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.)
Ceased
Application number
EP86850024A
Other languages
German (de)
English (en)
Other versions
EP0195758A3 (fr
Inventor
Ulf Jöran Lagne
Jean-Paul Denisart
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.)
Institut Cerac SA
Original Assignee
Institut Cerac SA
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 Institut Cerac SA filed Critical Institut Cerac SA
Publication of EP0195758A2 publication Critical patent/EP0195758A2/fr
Publication of EP0195758A3 publication Critical patent/EP0195758A3/fr
Ceased legal-status Critical Current

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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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • F04B43/0072—Special features particularities of the flexible members of tubular flexible members
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/10—Pumps having fluid drive

Definitions

  • the present invention relates to a fluid pump which advantageously can be used for pumping a variety of fluids, e.g. concrete, berries and other food substances.
  • the present invention proposes a fluid pump which is cheap and reliable and which is light and does not need to be fixed in space.
  • the pump can, therefore, be hung in the conduit through which the fluid is delivered.
  • the pump can easily be designed such that it can pump berries or other fragile material without destroying it
  • the pump can advantageously be used for pumping concrete because it is easy to clean the pump.
  • a number of pumps can easily be connected in series in a conduit to accomplish pumping to substantial heights without the use of high drive pressures.
  • fig 1 shows a section through a pump according to the invention.
  • Fig 2 shows a section through a part of a tubular element used in the invention.
  • Fig 3 shows a section through a valve element used in the pump.
  • Fig 4 shows the valve element from above.
  • Fig 5 shows four pumps connected in series.
  • the fluid pump shown in fig 1 comprises a tubular member 31 and tube member 21.
  • Tubular member 31 has a first end 32 and a second end 34.
  • Tube member 21 has a first end 19 and a second end 20.
  • the first ends are connected to one another by means of clamping. Rings 23,24,25 are used for the clamping.
  • the second ends are similarly clamped to one another by means of rings 26,27,28.
  • Tubular member 31 and tube member 21 may be tensioned relative to one another before they are clamped together in order to optimize the pump for a given counterpressure.
  • Tubular member 31 is provided with a pump chamber 33, an inlet valve 35 through which fluid is entered into the pump chamber and an outlet valve 37 through which fluid is delivered from the pump chamber.
  • Valve element 35 is mounted in an end piece 30 by means of an elastic ring 29.
  • End piece 30 is provided with an inlet opening 36 and a thread 38 for connection to a conduit or another pump.
  • End piece 30 is connected with ring 26.
  • the pump ' is provided with another end piece 15 which is connected with ring 23.
  • Valve element 37 is held in end piece 15 by an elastic ring 18.
  • End piece 15 is provided with an outlet opening 1 6 and a thread 1 7 for connection to a conduit or another pump.
  • a space 22 is provided inside tube member 21. This space is via a channel 14 and a conduit 13 connected to a fluid pressure source 12 of variable pressure.
  • Tube member 21 the same is valid for tubular member 31, comprises a tube 41 in which reinforcing threads 42 are embedded. Threads 42 extend helically along the tube at a pitch angle v. The threads extend in both directions.
  • tube member 21 has a pitch angle of 20° and tubular member 31 a pitch angle of 60°. The values are thus on either side of the value arccot (sqrt(2)), approx 35.3.°. This means that when space 22 is pressurized tube member 21 is lengthened and the volume of space 22 increased. As a result tubular member 31 is lengthened. The volume of pump chamber 33 is then as a result of the pitch angle decreased so that fluid is pushed out from the pump chamber. Pumping is accomplished by successively pressurizing and depressurizing space 22. In the fig 1 example the pump chamber is in the centre with space 22 extending about tubular member 31, although these volumes could be arranged in the opposite way.
  • valves exemplified by outlet valve 37, comprise a metal ring 51 to which a rubber cone 52 has been vulcanized.
  • the rubber cone has been provided with cuts 53 in form of a cross.
  • the valves act as check valves.
  • pumps 61,62,63,64 are connected in series.
  • the arrangement of several pumps, the number being virtually unlimited, in series makes it possible to raise a fluid to a desired height without using unduly high pressures.
  • Many fluids, e g certain types of concrete, must not be exerted to high pressures if the quality of the product is to be maintained.
  • Space 22 of pumps 61 and 63 are via a conduit 65 connected to valve 67.
  • Space 22 of pumps 62 and 6 4 are via a conduit 66 connected to valve 67.
  • Valve 67 is via a conduit 69 connected to a fluid pressure source 68.
  • One of conduits 65 and 66 is pressurized while the other is depressurized depending on the position of valve 67.
  • Valve 67 is shown as manually operated. However, it is understood that the operation can be automated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP86850024A 1985-03-04 1986-01-28 Pompe de fluide Ceased EP0195758A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH961/85 1985-03-04
CH96185A CH661565A5 (fr) 1985-03-04 1985-03-04 Pompe pour fluide.

Publications (2)

Publication Number Publication Date
EP0195758A2 true EP0195758A2 (fr) 1986-09-24
EP0195758A3 EP0195758A3 (fr) 1986-12-30

Family

ID=4199213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86850024A Ceased EP0195758A3 (fr) 1985-03-04 1986-01-28 Pompe de fluide

Country Status (3)

Country Link
EP (1) EP0195758A3 (fr)
JP (1) JPS61201889A (fr)
CH (1) CH661565A5 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014929A1 (fr) * 1991-02-22 1992-09-03 Qed Environmental Systems, Inc. Dispositif de pompage pour la collecte, l'echantillonnage, etc, des fluides
FR3032751A1 (fr) * 2015-02-12 2016-08-19 Du Rocher Bertrand Boisseau Pompe peristaltique.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021079409A1 (fr) * 2019-10-21 2021-04-29 ネイチャーダイン株式会社 Système de pompe à liquide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689204A (en) * 1970-05-18 1972-09-05 Gen Motors Corp Laminated liquid pump and method of making same
DE2120850A1 (de) * 1971-04-28 1972-11-09 Jourdan, Klaus, Dipl.-Ing., 6460 Gelnhausen Vorrichtung zum gleichförmigen Fördern von in einer Rohrleitung intermittierend strömendem flüssigem Beton
GB2033967B (en) * 1978-10-03 1982-12-22 Secr Defence Pumping devices
DE3000142A1 (de) * 1980-01-04 1981-07-09 Werner 7129 Talheim Heyberger Injektionspumpe fuer den bergbau und grundbau

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5147185A (en) * 1990-05-14 1992-09-15 Qed Environmental Systems, Inc. Pump apparatus for fluid sampling and collection, and the like
WO1992014929A1 (fr) * 1991-02-22 1992-09-03 Qed Environmental Systems, Inc. Dispositif de pompage pour la collecte, l'echantillonnage, etc, des fluides
FR3032751A1 (fr) * 2015-02-12 2016-08-19 Du Rocher Bertrand Boisseau Pompe peristaltique.

Also Published As

Publication number Publication date
JPS61201889A (ja) 1986-09-06
CH661565A5 (fr) 1987-07-31
EP0195758A3 (fr) 1986-12-30

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Inventor name: DENISART, JEAN-PAUL

Inventor name: LAGNE, ULF JOERAN