EP0354154A1 - Peristaltische Pumpe - Google Patents

Peristaltische Pumpe Download PDF

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Publication number
EP0354154A1
EP0354154A1 EP89500035A EP89500035A EP0354154A1 EP 0354154 A1 EP0354154 A1 EP 0354154A1 EP 89500035 A EP89500035 A EP 89500035A EP 89500035 A EP89500035 A EP 89500035A EP 0354154 A1 EP0354154 A1 EP 0354154A1
Authority
EP
European Patent Office
Prior art keywords
conduits
conduit
helicoid
tubular
peristaltic pump
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Withdrawn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
EP89500035A
Other languages
English (en)
French (fr)
Inventor
Enrique Costa Bastart
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0354154A1 publication Critical patent/EP0354154A1/de
Withdrawn legal-status Critical Current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
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • 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
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/021—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms the plate-like flexible member is pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the plane of the plate-like flexible member and each having its own driving mechanism
    • 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
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/14—Machines, pumps, or pumping installations having flexible working members having peristaltic action having plate-like flexible members

Definitions

  • the present invention relates to a peristaltic pump of the type comprising at least a flexible tubular conduit, means for crushing a point of the length of the conduit thus creating a fluid tight restriction between upstream and downstream portions of the conduit, and means for moving the said restriction along the conduit, thus impelling a fluid present within at least a said tubular conduit to move along this latter in the direction of mo­tion of the said restriction.
  • the impeller means Both crushing and moving means, taken as an ensemble, will be termed hereafter "the impeller means”.
  • the flexible tubular conduit is isolated from the driving means, and this is specially suitable for moving on the one hand aggressive liquids which could damage the pump mechanisms, and on the other hand liquids which want not to be altered, such as liquids to be used for consumption (for example wines and the like).
  • Peristaltic pumps according to the above definition are well known.
  • the Spanish patent 518 515 in the name of the same applicant des­cribes a peristaltic pump wherein the crusher and impeller means are constituted of electromagnets acting upon com­pression plates in contact with the flexible tubular con­duit, thus avoiding the expensive mechanisms used hitherto for driving this kind of pumps.
  • this pump had the drawback that the compression plates were applied suddenly onto the flexible tubular conduit, thus causing an hydraulic ram effect in the hydraulic ducting in which the pump is installed.
  • the Spanish patent 526 982 is an addition to the above patent and has the aim of solving the above drawback in that the compression plates are driven by a camshaft, each of whose cams is arranged at a given angular position about their rotation axis.
  • the peristaltic pump making the subject of the invention responds to the above definition and is charac­terized in that the fluid impelling means comprise a revolving body connected to rotation means, and a helical extending rib, the flexible tubular conduit or conduits being placed about the revolving body such that the outer border of the rib crushes the tubular conduit or conduits at a point or points which move along the said conduits, thus impelling the fluid therethrough, when the body with the helicoidal rib is rotated about the axis of the former.
  • the helicoid made-up by the revolving body and the helicoidal rib acts upon the flexible tubular conduit or conduits in a continuous fashion, without the discon­tinuities and jumps of the known peristaltic pumps.
  • the peristaltic pump of the invention succeeds in solving the above drawbacks and provides a continuous and smooth working.
  • the borders of the helicoidal rib or helicoid are rounded in order that the contact between the helicoid and the tubular conduit or conduits becomes as smooth as possible.
  • the pump comprises a fabric web arranged between the helicoid and she at least one flexible tubular conduit to easy the helicoid displacement over the at least one tubular conduit. It is thus avoided that the tubular conduit or conduits become trapped by the helicoid and subjected to an excessive wear.
  • the movement of the helicoid is per­formed in a dry condition, though it is also possible to perform it within a lubricating means in order to cut down friction between the helicoid and the fabric web or webs.
  • the pump according to the invention comprises a pair of flexible tubular conduits located at diametral opposite positions as regards the helicoid.
  • the use of two tubular conduits affords an increase of the pump flow capabilities as regards the flow of a pump using only one tubular conduit.
  • the pump of the invention is specially suitable for moving chemicals, champagne, sparkling wines and the like, which become al­tered when they are shacked suddenly.
  • the peristaltic pump shown in the Figures com strictlyprises a pair of flexible tubular conduits 1,2 to be described further later, and a so called helicoid 3 formed of an elongated body secured to a shaft 3a for connection to a conventional means for rotating it.
  • This body is formed with a helical rib 3b, the outer border 18 of which crushes flat the tubular conduits with their mutually faced inner surfaces in contact along a transverse line at one point of their length, thus forming an interruption or restriction of the inner volume of the conduits which moves, when the helicoid is made to revolve, along the length of the same, thus impelling the fluid contained in a circuit of which the said conduits form part, in the direction of motion of the restriction along both tubular conduits.
  • the outer rounded border of the rib 3b of the helicoid 3 shows, in profile, protruding zones 18a and recessed zones 18 which move along the pump when the helicoid is rotated by a conven­tional driving means, such as an electric motor.
  • Figures 1 and 2 show two different positions of the pump parts.
  • a protruding zone 18a is ac­ting upon the upper flexible tubular conduit 1a recessed zone 18 being located at the lower part, thus leaving the tubular conduit 2 free.
  • the protruding zone 18a is acting upon the tubular conduit 2 thus leaving the tubular conduit 1 free.
  • the helicoid 3 acts upon the flexible tubular conduits 1,2 in a continuous manner, with no discontinuities or jumps as in the known peristaltic pumps. It will also be observed in the Figures that the outer borders of the rib 3b are rounded in order that the contact between the helicoid 3 and the tubular conduits 1,2 is as smooth as possible.
  • the fabric webs 4,5 are located between the helicoid 3 and the flexible tubular conduits 1,2 to facilitate the displacement of the helicoid 3 over the said tubular conduits, thus avoiding that these latter could become trapped by the helicoid and subjected to an excessive wear.
  • the movement of the helicoid is performed preferably in a dry condition, though it could also be performed in a lubricant medium in order to cut down friction between the helicoid 3 and the fabric webs 4,5.
EP89500035A 1988-08-05 1989-03-20 Peristaltische Pumpe Withdrawn EP0354154A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES8802455 1988-08-05
ES8802455A ES2010015A6 (es) 1988-08-05 1988-08-05 Bomba peristaltica.

Publications (1)

Publication Number Publication Date
EP0354154A1 true EP0354154A1 (de) 1990-02-07

Family

ID=8257629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89500035A Withdrawn EP0354154A1 (de) 1988-08-05 1989-03-20 Peristaltische Pumpe

Country Status (2)

Country Link
EP (1) EP0354154A1 (de)
ES (1) ES2010015A6 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014004476A1 (de) * 2014-03-28 2015-10-01 Fresenius Medical Care Deutschland Gmbh Peristaltische Pumpe, Pumpvorrichtung und tragbare Blutbehandlungsvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629333A (en) * 1950-07-01 1953-02-24 Roger G Olden Rotary compress pump
EP0200448A2 (de) * 1985-04-24 1986-11-05 Alphacrete Construction Linings (Uk) Limited Peristaltische Pumpe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629333A (en) * 1950-07-01 1953-02-24 Roger G Olden Rotary compress pump
EP0200448A2 (de) * 1985-04-24 1986-11-05 Alphacrete Construction Linings (Uk) Limited Peristaltische Pumpe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014004476A1 (de) * 2014-03-28 2015-10-01 Fresenius Medical Care Deutschland Gmbh Peristaltische Pumpe, Pumpvorrichtung und tragbare Blutbehandlungsvorrichtung

Also Published As

Publication number Publication date
ES2010015A6 (es) 1989-10-16

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