WO1992009805A1 - Pompe - Google Patents

Pompe Download PDF

Info

Publication number
WO1992009805A1
WO1992009805A1 PCT/CH1991/000237 CH9100237W WO9209805A1 WO 1992009805 A1 WO1992009805 A1 WO 1992009805A1 CH 9100237 W CH9100237 W CH 9100237W WO 9209805 A1 WO9209805 A1 WO 9209805A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
eccentric
pump
pump according
ring
Prior art date
Application number
PCT/CH1991/000237
Other languages
German (de)
English (en)
Inventor
Mathias Reichmuth
Original Assignee
Mathias Reichmuth
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 Mathias Reichmuth filed Critical Mathias Reichmuth
Priority to JP91517327A priority Critical patent/JPH05505863A/ja
Publication of WO1992009805A1 publication Critical patent/WO1992009805A1/fr

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
    • 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
    • F04B43/123—Machines, pumps, or pumping installations having flexible working members having peristaltic action using an excenter as the squeezing element
    • 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

Definitions

  • the invention relates to a pump consisting of a pump housing forming a cylindrical chamber, an eccentric that can be driven in rotation as well as a hose arranged in between and containing a medium to be conveyed, which is squeezed by the eccentric to the inner wall of the housing and thus the medium in the hose is conveyed peristaltically.
  • a pump of the type described is known from CH-PS 411 582, in which small amounts of liquid, for example chlorinated liquid, are conveyed into a swimming pool.
  • An elastic flexible hose is guided almost twice around a roller which is arranged on a bearing of an eccentric shaft. Due to the rotary drive of the shaft, the roller is moved along an eccentric path and thus the hose there locally squeezed, where the outer surface of the roller is closest to the inner wall of a pressure element in the housing. Liquid in the hose is thus pumped from an inlet towards an outlet.
  • the space provided around the hose can only absorb a relatively low pressure (1 to 2 bar), otherwise it would inflate and burst prematurely when the burst pressure is reached. It has also been shown in practice that the hose makes an uncontrollable flexing movement when it is placed directly on the roll (eccentric), which can lead to operational malfunctions or even make the pump unsuitable.
  • the object of the present invention is to further develop a pump of the type described at the outset in such a way that, with a significantly higher possible operating pressure, it achieves perfect operating behavior and a long service life is achieved with the hose used.
  • the object is achieved in that, on the one hand, the hose is continuously enclosed within the pump housing, as a result of which media of all types primarily with a higher pressure, i.e. 6 to 10 bar can be promoted.
  • a flexible ring arranged between the hose and the eccentric which preferably consists of several parts, enables the hose to no longer be exposed to flexing and, moreover, the service life of the hose to be increased.
  • its parts can consist of rollers which are axially parallel to the eccentric and of segments of approximately the same thickness between them, or of segments or only of rollers.
  • the hose is advantageously guided inside the pump housing in one turn around the eccentric and its ends should be angled approximately radially or axially outwards and arranged next to one another, but separated from a wall, form the inlet and outlet of the pump.
  • the inlet to the outlet is preferably to be arranged in such a way that the rotating eccentric momentarily squeezes both ends as it squeezes from the outlet-side to the inlet-side region of the hose. This means that the pump can be operated without using check valves.
  • the ring has a wedge-shaped filler piece which projects between the hose arranged on the outlet and outlet sides and which is preferably made of elastic material.
  • the cross section of the tube is advantageously rectangular. This results in a particularly favorable shape in the squeezed state than in a conventional round hose cross-section; this in turn leads to an increase in the service life of the hose, which is already heavily used anyway.
  • it can consist of silicone material.
  • FIG. 1 shows a top view of a pump according to the invention
  • FIG. 2 shows a cross section of the pump according to FIG. 3 and 4 each show an enlarged cross section through a hose of the pump
  • Fig.l on the one hand in the unloaded and on the other hand in the squeezed state
  • Fig.5 and Fig.6 each a top view of a pump in two further versions
  • Fig.7 a partial section of an inlet and outlet hose arrangement.
  • Fig. 1 and Fig. 2 show a pump 10 with a pump housing 11, which has a substantially cylindrical outer shape and can be fastened, for example, to a commercially available, not shown electric motor by means of screws 13.
  • the drive shaft 14 of the motor protrudes into the interior of the pump housing 11.
  • a cover 12 of the aforementioned screws 13 is also attached to the end of the pump housing 11.
  • a cylindrical chamber 15 is thus formed in the interior of the housing 11, in which an eccentric 16 fixed on the drive shaft 14 with a roller bearing 16 'fixed thereon is arranged such that it can be driven in rotation. While the inner ring of the roller bearing 16 'designed as a ball bearing rotates with the eccentric, its outer ring is practically stationary.
  • a hose 20 arranged in the cylindrical chamber 15 is continuously surrounded by the pump housing 11 and, on the other hand, a flexible ring 25 is arranged between this hose 20 and the eccentric 16, which surrounds the hose 20 on the inside.
  • the ring 25 consists of rollers 26 which Arranged axially parallel to the eccentric 16 and distributed at a distance of 60 ° over its circumference 16 ", as well as from the intermediate segments 27, which are approximately the same thickness as the rollers 26, end faces 27 'and slots 27" for the purpose of the rollers Have increased radial flexibility.
  • the rollers 26 are made of steel while the segments 27 are made of plastic.
  • the hose 20 is within the housing 11 in one turn around the eccentric 16 and. guided the ring 25.
  • the hose ends 20 are angled approximately radially outwards and are arranged next to one another, a wall 29 separating the hose ends from one another. These form the input 21 resp. Outlet 22 of pump 10.
  • a wedge-shaped elastic filler 28 which is in contact with or fastened to the ring 25 enables the hose ends 20 'not to be bent too sharply, which in turn strives for a longer service life of the hose. Moreover, its contact surfaces with the hose are also provided with a radius and the filler is guided on said wall 29 in a displaceable manner.
  • coupling pieces for connecting lines or hoses can be provided, the latter with possibly reinforced training, which are suitable for receiving pressures up to 10 bar.
  • the drive shaft 14 and thus the eccentric 16 rotate in the direction 14 ′ shown at a certain speed, the direction of rotation could just as well be reversed, which is a further advantage of this pump.
  • the rotating eccentric 16 now causes the hose 20 to be squeezed via the flexible ring 15 on the outer region furthest away from the drive shaft 14.
  • the medium to be pumped is now pumped against the outlet 22.
  • the hose 20, which opens again after being squeezed, sucks in the medium again from the inlet 21.
  • the hose 20 is in this case arranged from the inlet to the outlet in such a way that both hose ends 20 'are squeezed at the moment, so that no check valve is required on either the outlet or the outlet side. Due to the elastic design of the filler 28, this momentary squeezing of both hose ends 20 'can be achieved without any problems.
  • an operating delivery pressure of 6 to 10 bar can be achieved. It is particularly suitable for conveying food or similar media where contact with pump parts should be avoided. From this point of view, the pump is also very suitable in medicine because it can be used to convey media in an absolutely sterile manner. This pump can also be used to pump gaseous, liquid or even solids. It is also particularly suitable in the chemical sector, where direct contact of the medium with pump parts must also be avoided, such as with very aggressive or reactive media.
  • the tube 20 is approximately rectangular, with its longer side resting on the ring 25.
  • the hose 20 ′′ shown in dash-dotted lines is provided absolutely rectangular, which, in the uncrimped state, corresponds to the cross section formed by the pump housing 11 and the ring 25.
  • it can be enclosed more holistically, which can also be seen in FIG. 2, and on the other hand it is much less deformed in the crimped state, which is shown in FIG. 4, than would be the case, for example, with a round cross-section, whereby round hoses can in principle also be used for the present invention , so that it is more wear-resistant when it comes into contact with the housing inner wall.
  • the hose 20 is preferably produced in such a way that it is poured into an injection mold which corresponds to the space for the hose formed by the pump housing 11 and the ring 25 Silicone material or made of application-specific material, which can also be reinforced.
  • FIG. 5 and FIG. 6 only just different types of flexible rings are shown compared to the pump 10. Therefore, only these rings are explained in detail below.
  • the ring 32 provided in FIG. 5, which is arranged around the eccentric 16, consists of four adjoining segments 32 '.
  • Outlet 22 in turn has a wedge-shaped filler 32 ".
  • Outlet 22 ' is angled, the inlet 21' and the outlet 22 'are arranged approximately axially parallel to the eccentric and on or in the cover. emerge.
  • the dividing wall 29 ' extends up to the ring and is radially displaceably pressed against the ring by a spring 36, so that the dividing wall 29' is always in contact with the ring.
  • the outlet-side hose 20 when the outlet-side hose 20 is angled, it can have a cam which extends against and touches the inlet-side hose 20 and which is surrounded by a spring steel plate, so that the outlet-side hose 20 does not compress the inlet-side hose during pressure build-up and is sucked in of the medium would prevent.
  • a cam 40 and a spring steel sheet 42 surrounding it are provided at the outlet of the hose 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Une pompe (10) a un carter de pompe (11) constituant une chambre cylindrique (15), dans lequel est disposé un excentrique (16) pouvant être entraîné en rotation par l'intermédiaire d'un arbre moteur (14). Cet excentrique a pour effet, par l'intermédiaire d'une bague flexible (25) disposée autour de lui, d'écraser un tuyau flexible (20) enroulé autour de la bague (25) contre la paroi extérieure (11') du carter. Par le mouvement de rotation de l'excentrique (16), un fluide dans le tuyau flexible (20) est refoulé de manière péristaltique. Le tuyau flexible (20) est en outre entouré de manière continue par le carter de pompe (11) et permet ainsi une tenue en service impeccable de cette pompe (10), même lors de pressions de refoulement élevées de 6 à 10 (bars).
PCT/CH1991/000237 1990-11-30 1991-11-20 Pompe WO1992009805A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP91517327A JPH05505863A (ja) 1990-11-30 1991-11-20 ポンプ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3788/90-2 1990-11-30
CH378890A CH682586A5 (de) 1990-11-30 1990-11-30 Pumpe.

Publications (1)

Publication Number Publication Date
WO1992009805A1 true WO1992009805A1 (fr) 1992-06-11

Family

ID=4263487

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1991/000237 WO1992009805A1 (fr) 1990-11-30 1991-11-20 Pompe

Country Status (5)

Country Link
EP (1) EP0513259A1 (fr)
JP (1) JPH05505863A (fr)
CA (1) CA2073775A1 (fr)
CH (1) CH682586A5 (fr)
WO (1) WO1992009805A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004024641A1 (de) * 2004-05-18 2005-12-22 Ruetz, Stefan Schlauchpumpe
WO2014135325A1 (fr) * 2013-03-05 2014-09-12 Emitec Gesellschaft Für Emissionstechnologie Mbh Pompe de dosage d'un additif liquide pour un dispositif de réduction catalytique sélective
WO2014198597A1 (fr) * 2013-06-13 2014-12-18 Emitec Gesellschaft Für Emissionstechnologie Mbh Pompe de débit de liquide
WO2014198498A1 (fr) * 2013-06-13 2014-12-18 Emitec Gesellschaft Für Emissionstechnologie Mbh Pompe de refoulement de liquide
US9523359B1 (en) * 2013-02-04 2016-12-20 Robert C. Geschwender Linear peristaltic pump having opposing staggered curved surfaces

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5688112A (en) * 1996-02-22 1997-11-18 Garay; Thomas William Rotor axis aligned tube and outlet for a peristaltic pump system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2251235A (en) * 1940-04-25 1941-07-29 Edward E Stout Pump
GB1031595A (en) * 1963-10-22 1966-06-02 William Alexander Wemyss Improvements in compressible tube pumps
DE2152352A1 (de) * 1971-10-21 1973-04-26 Bodenseewerk Perkin Elmer Co Schlauchpumpe
WO1986003255A1 (fr) * 1984-11-21 1986-06-05 Eric Bruce Pompe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2251235A (en) * 1940-04-25 1941-07-29 Edward E Stout Pump
GB1031595A (en) * 1963-10-22 1966-06-02 William Alexander Wemyss Improvements in compressible tube pumps
DE2152352A1 (de) * 1971-10-21 1973-04-26 Bodenseewerk Perkin Elmer Co Schlauchpumpe
WO1986003255A1 (fr) * 1984-11-21 1986-06-05 Eric Bruce Pompe

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004024641A1 (de) * 2004-05-18 2005-12-22 Ruetz, Stefan Schlauchpumpe
US9523359B1 (en) * 2013-02-04 2016-12-20 Robert C. Geschwender Linear peristaltic pump having opposing staggered curved surfaces
WO2014135325A1 (fr) * 2013-03-05 2014-09-12 Emitec Gesellschaft Für Emissionstechnologie Mbh Pompe de dosage d'un additif liquide pour un dispositif de réduction catalytique sélective
CN105121851A (zh) * 2013-03-05 2015-12-02 大陆汽车有限责任公司 用于对选择性催化还原设备定量供应液态添加剂的泵
US10054116B2 (en) 2013-03-05 2018-08-21 Continental Automotive Gmbh Pump for metering a liquid additive for a selective catalytic reduction device
WO2014198597A1 (fr) * 2013-06-13 2014-12-18 Emitec Gesellschaft Für Emissionstechnologie Mbh Pompe de débit de liquide
WO2014198498A1 (fr) * 2013-06-13 2014-12-18 Emitec Gesellschaft Für Emissionstechnologie Mbh Pompe de refoulement de liquide
CN105492770A (zh) * 2013-06-13 2016-04-13 大陆汽车有限责任公司 用于输送液体的泵
US10393102B2 (en) 2013-06-13 2019-08-27 Continental Automotive Gmbh Pump for pumping a liquid along at least one delivery path delimited by a deformable element braced in an axial direction by a stress anchor projecting through a pump rotation shaft
DE102013106167B4 (de) 2013-06-13 2022-01-27 Vitesco Technologies GmbH Pumpe zur Förderung einer Flüssigkeit

Also Published As

Publication number Publication date
EP0513259A1 (fr) 1992-11-19
CH682586A5 (de) 1993-10-15
CA2073775A1 (fr) 1992-05-31
JPH05505863A (ja) 1993-08-26

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