Unlock instant, AI-driven research and patent intelligence for your innovation.

Peristaltic micropump

一种微型泵、泵体的技术，应用在泵、机器/发动机、具有柔性工作元件的泵等方向，能够解决高耗费等问题

Inactive Publication Date: 2005-09-28
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Alternatively, a pneumatically actuated actuation is possible, however, it requires high effort in terms of external pneumatics, as do the switching valves required for this

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Peristaltic micropump
  • Peristaltic micropump
  • Peristaltic micropump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The invention peristaltic micropump integrated in the fluid system, its first embodiment is in figure 1 displayed in . The micromembrane pump includes a membrane module 10 having three membrane sections 12 , 14 and 16 . Each membrane part 12, 14 and 16 is equipped with a pressure cell 22, 24 and 26 respectively, and thus together form a pressure membrane transducer. The pressure units 22, 24 and 26 may be glued to the membrane portions, or formed on the membrane by a screen printing or other thick film technique.

[0035] The membrane assembly is bonded around an outer region of the pump body 30 so that there are regions of fluid tight connection therebetween. Two fluid passages 32 and 34 are formed in the pump body 30, and one of them represents a fluid inlet and the other is a fluid outlet according to its suction direction. exist figure 1 In the shown embodiment, the fluid channels 32 , 34 are each surrounded by a sealing edge 36 .

[0036] In addition, in figu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention concerns a peristaltic micropump comprising a first membrane zone (12) , a second membrane zone (14), and a third membrane zone (16). A pump body (30) forms, with the first membrane zone (12), one first valve whereof the passage orifice (32) is open when the first membrane zone (12) is not actuated and is closed when the first membrane zone (12) is operating. The pump body (30) forms, with the second membrane zone (14), a pumping cavity (42) whereof the volume decreases when the second membrane zone (14) is operating. Said pump body (30) forms, with the third membrane zone (16), a second valve (64) whereof the passage orifice (34) is open when the third membrane zone (16) is not actuated and is closed when the third membrane zone (16) is operating. The first and second valves (62, 64) are in fluid connection with the pumping cavity (42).

Description

technical field [0001] The invention relates to a micropump, and in particular to a micropump operating according to a peristaltic pumping principle. Background technique [0002] Micropumps which operate according to a peristaltic pumping principle are known in the prior art. Published by Li Cao et al. in Sensors and Actuators, A94(2001), the article "Design and simulation of animplantable medical drug delivery system using microelectromechanicalsystems" on pages 117 to 125 technology) ", including an inlet, three pump chambers, three silicon membranes, three generally closed movable valves, a pressure stack starter of trizirconate titanate, a microchannel between the pump chambers, and a Outlet of the peristaltic micropump. The three pump chambers have the same dimensions and are etched into a silicon wafer. [0003] It is also known from WO 87 / 07218 that a peristaltic micropump has three membrane regions in the region of a continuous substrate. In a support layer supp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/02F04B43/04
CPCF04B43/043F04B43/046F04B43/14
Inventor 马丁·李奇特尔马丁·瓦克尔雷约瑟·康格尔朱利亚·尼森
Owner FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV