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Films for transmission media

A membrane pump, working membrane technology, applied in the direction of pumps with flexible working elements, liquid variable capacity machinery, machines/engines, etc., can solve problems such as limited service life, and achieve the effect of improving installation

Active Publication Date: 2017-02-15
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this places very high mechanical demands on the elastic region of the working membrane and has only a limited service life

Method used

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  • Films for transmission media
  • Films for transmission media
  • Films for transmission media

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] exist figure 1 shows the working membrane supported by a disc-shaped support element received on the armature.

[0028] figure 1 The working membrane 14 is shown firmly received on the armature head 12 of the armature 10 by means of the undercut 16 . The connection between the working diaphragm 14 and the armature head 12 of the armature 10 can take place, for example, by vulcanization. The armature 10 transmits the reciprocating movement to the working membrane 14 , which is deformed in the elastic region 26 by the reciprocating movement. In order to stabilize the working membrane 14 , a support disc 18 is received on the armature 10 . The connection between the armature 10 and the support disk 18 is realized by means of a press connection, a welding connection, an adhesive connection and / or a screw connection 20 . The edge of the support disc 18 is provided with a rolling radius 48 . Due to the rolling radius 48 on the support disc 18 , the film 14 rests on the s...

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Abstract

The invention relates to a working diaphragm (14) for the volumetric conveying of a fluid. In the installed state (28), the working diaphragm (14) is received between components (30, 38). The working diaphragm (14) is connected to an actuator (10, 12) for carrying out conveying strokes. The working diaphragm (14) is stabilized by a supporting element (18, 54) in the elastic region (26).

Description

Background technique [0001] In conveying devices, for example in diaphragm pumps for conveying working media, the working diaphragm is mainly made of elastic materials. Using the conveying device, in particular a membrane pump, it is possible to convey, for example, working material / auxiliary material or a working medium, for example a reducing agent such as an aqueous urea solution which is used in exhaust gas aftertreatment systems to reduce the NO X Element. [0002] However, working membranes mainly made of elastic materials are limited to use in the low-pressure range of up to about 6 bar. In principle, the purpose of such a working membrane is to be able to oscillate and continuously generate a low pressure for aspiration or an alternation of pressure for a delivery volume by coupling a mechanical component connected to the actuator. [0003] The working membranes used for this purpose are generally locked and sealed to the outside by the backing plate and the housing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B43/02
CPCF04B43/02
Inventor W·克尼斯O·普里斯尼茨C·瓦莱策克G·嫩特维希
Owner ROBERT BOSCH GMBH
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