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

Chamber pump and method for operating same

A chamber and function technology, applied in the components, pumps, pump elements, etc. of pumping devices for elastic fluids, can solve the problems of complex balance requirements, cost, and more expensive manufacturing and maintenance of linear pumps, and achieve good reliability. readability effect

Inactive Publication Date: 2018-06-29
DRAGERWERK AG
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such linear pumps are likewise significantly more expensive and more complex to manufacture and maintain, since an additional and primarily faster sensor system for detecting the position and / or speed of the drive is required for the regulation of the linear movement
Furthermore, the necessary balance of linearly moving masses for low-vibration operation requires complex construction

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
  • Chamber pump and method for operating same
  • Chamber pump and method for operating same
  • Chamber pump and method for operating same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] exist figure 1 and figure 2 The illustration in FIG. 2 shows, in a schematically simplified form, two embodiments of a chamber pump 10 that are sometimes also referred to simply as pump 10 in the following, which are basically known per se. Each pump 10 has a pump chamber 12 which is delimited on the one hand by an elastic membrane 14 and on the other hand by a housing part 16 of the pump housing with at least one inflow opening and outflow opening respectively formed therein. The membrane 14 , which is referred to below as the chamber membrane 14 to distinguish it, is connected laterally to the housing part 16 . The or each inflow opening and the or each outflow opening are respectively associated with a valve 18 , 20 which opens or closes the inflow or outflow opening synchronously with the pump cycle.

[0060] This pump cycle results during the operation of the pump 10 on the basis of a corresponding drive of the pump 10 . as a driver, in figure 1 shows a rotary...

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 discloses a chamber pump (10) and a method for operating the same. The chamber pump (10) includes a pump chamber (12), a chamber diaphragm (14) or a piston (34) as well as an axially movable driving rod (24) acting on the chamber diaphragm (14) or on the piston (34) for changing the volume of the pump chamber (12). The chamber pump (10) includes an electroactive diaphragm (40, 40'),which acts as an actuator for influencing an axial position of the driving rod (24) and acts on the driving rod (24), on the one hand, and on a housing of the pump (10), on the other hand. An electricpotential is applied to the electroactive diaphragm (40, 40') during the operation of the chamber pump (10) to influence an axial position of the driving rod (24) and to achieve a return stroke or aforward stroke of the chamber pump (10).

Description

technical field [0001] The invention relates to a gas chamber pump or a liquid chamber pump, referred to below simply as a pump. Piston pumps or diaphragm pumps are referred to here as chamber pumps, in which, in a manner known per se, the at least part of the pump chamber is changed periodically during operation due to the movement of the piston or diaphragm. A corresponding delivery of medium and / or a pressure change upstream or downstream of the pump is produced by means of the volume defined by the piston or diaphragm and due to the periodic volume change of the pump chamber. The invention relates to such a chamber pump intended for use in medical devices or in safety engineering systems. Background technique [0002] In medical devices, such pumps are used, for example, to drive breathing gas in order to transport measurement gas (in particular patient gas) from a sampling point to a measuring point or to control or drive further actuators. With regard to the use of s...

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): F04B43/04
CPCF04B43/046F04B17/03F04B43/04F04B49/06F04B53/1037F04B53/146F04B2201/0201F04B2203/0209F05C2251/02
Inventor H-U.汉斯曼
Owner DRAGERWERK AG