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Piezo Valve

A piezoelectric valve, valve cavity technology, applied in the direction of valve details, valve device, valve operation/release device, etc.

Inactive Publication Date: 2013-07-31
FESTO AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a valve has the disadvantage that it can only be realized with relatively large dimensions due to the relatively large overall length of the valve element

Method used

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  • Piezo Valve
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Examples

Experimental program
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Embodiment Construction

[0036] A piezo valve, which is designated as a whole with the reference numeral 1 , is described below on the basis of a number of exemplary embodiments, wherein what has been explained applies to all exemplary embodiments, as long as nothing else is stated in the individual cases.

[0037] The piezo valve 1 has, for example, a box-shaped valve housing 2 , which encloses an interior space referred to below as a valve chamber 3 . The valve housing 2 has, for example, a lower part 2 a with a base wall 4 and a surrounding side wall 6 projecting upwards from the base wall 4 in the height direction 5 . Furthermore, the valve housing 2 comprises a cover wall 8 lying opposite the base wall 4 in the height direction 5 , which is formed in the exemplary embodiment by a housing cover 2 b which closes off the side walls of the lower part 2 a. 6 surrounds the housing opening 7 . The housing cover 2b is not shown in FIGS. 1 and 4 .

[0038] The piezoelectric bending transducer 12 is loca...

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PUM

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Abstract

The valve (1) has a valve element (36) arranged in a valve chamber (3) that is defined by a box-shaped valve housing (2), which includes a flat sealing element (42). A propulsive coupling existing between a drive portion (25) and the valve element (36) allows relative input movements in the form of relative translational movements (44a) and tilting movements between the drive portion and the valve element. The valve element is linearly displaceable to perform working movement independent of a bending transducer (12) by a linear guide unit (37) relative to the housing.

Description

technical field [0001] The invention relates to a piezoelectric valve with a valve housing delimiting a valve chamber, in which a valve element is arranged, the valve element having a flat sealing element opposite a valve seat or forming such a seal element, and the valve element is drivingly coupled (koppeln) to the drive section of the piezoelectric bending transducer (Biegewandler), which can pivot when a drive movement is carried out, in such a way that the By means of this drive movement, the valve element can be driven into a working movement towards or away from the valve seat. Background technique [0002] A piezoelectric valve of this type known from document DE 19949197 A1 comprises a piezoelectric bending transducer clamped fixedly at one end at the valve housing and having a drive section which can be swung by applying a control voltage, which The drive section carries the valve element. The valve element comprises a base body which is fastened in a bore of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/02
CPCF16K31/006
Inventor C.派因
Owner FESTO AG & CO KG