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Peristaltic pump having reduced pulsation and use of the peristaltic pump

A technology of peristaltic pumps and pulsation effects, applied to pumps with flexible working elements, pumps, pump components, etc., can solve problems such as high failure probability and pump wear

Active Publication Date: 2016-04-13
BAUSCH STROEBEL MASCHFAB ILSHOFEN GMBH CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage of the last two mentioned solutions is that the hose squeeze mechanism must be designed to be movable in the rotating part, which leads to wear and a higher probability of failure of the pump

Method used

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  • Peristaltic pump having reduced pulsation and use of the peristaltic pump
  • Peristaltic pump having reduced pulsation and use of the peristaltic pump
  • Peristaltic pump having reduced pulsation and use of the peristaltic pump

Examples

Experimental program
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Embodiment Construction

[0045] figure 1 A perspective view is shown of a peristaltic pump 1 comprising a saddle 2 inside which a rotor 3 is arranged. The hose 4 is arranged in the gap between the saddle inner surface 5 and the peripheral surface of the rotary part 3 . Arranged on the periphery of the rotary part 3 are four hose squeezing means 6 largely covered by the rotary part 3 . The hose squeezing means 6 are designed as rollers, which are each rotatable about the axis 7 of the rotor. The hose squeeze mechanism 6 engages in the hose 4 and compresses the hose so that it is at least temporarily closed by the hose squeeze mechanism 6 . The hose 4 is fixedly arranged in the saddle 2 . During the rotation of the rotor 3 , the hose squeezing mechanism 6 travels along the hose 4 and compresses it before the saddle inner face 5 . The illustrated peristaltic pump 1 has a winding angle of approximately 360°, the ends of the hoses 4 emerging from the peristaltic pump 1 crossing one another in or shortl...

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Abstract

The invention relates to a peristaltic pump (1), comprising a saddle and a rotor (3) that can be rotated therein, between which a hose (4) is arranged. The rotor (3) bears hose-squeezing means (6), which slide over the hose (4) with the rotation of the rotor (3) and thus pump a pumping fluid. Pulsation effects occur when the hose-squeezing means (6) emerge from the hose (4). According to the invention, said pulsation effects are suppressed by suitably shaping an inner saddle surface (5) on which the hose (4) rests. In addition, the pulsation effects can be reduced or avoided by adjusting the rotational speed of the rotor in a controlled manner, suitably selecting a pumping end position for the metering of the pumping medium, or defining certain unchanging pumping end positions. The invention further relates to the use of such a peristaltic pump (1) for metering.

Description

technical field [0001] The invention relates to a peristaltic pump for conveying a conveying medium of a fluid through a hose, which has a saddle with an arcuately shaped saddle inner face and a rotor arranged in the saddle rotatably about an axis of rotation, said The swivel part comprises a plurality of hose pressing means, distributed angularly around the swivel axis, arranged at least temporarily opposite the inner surface of the saddle, in order to act from the outside on the hose to be arranged between the inner saddle and the swivel part. , so that the corresponding local narrowing of the passage cross-section of the hose due to the external loading of the hose by the hose squeeze mechanism can move along the inner surface of the saddle with the relevant hose squeeze mechanism when the rotating part rotates , in order to convey the conveying medium in the hose, wherein the saddle has, in the stated order, a sinking area along the saddle inner surface of preferably 30°, ...

Claims

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Application Information

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IPC IPC(8): F04B43/12
CPCF04B43/12F04B43/1253F04B43/1261F04B11/00
Inventor S·阿克曼H·鲍尔
Owner BAUSCH STROEBEL MASCHFAB ILSHOFEN GMBH CO KG
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