Buerkert Werke Gmbh

Buerkert Werke Gmbh & Co. Kg

Klaus-Guenther Beck

Peter Krippner

Jan Westermann

Cricia De Carvalho Rodegheri

Birgit Stadelbauer

Andreas Lung

Christoph Dittrich

A fluid housing in the form of a valve or sensor housing has a plastically shaped outer housing body made of metal with a fluid inlet and a fluid outlet, which have protruding tubular ports. On the outer circumference of the ports clamping rings are seated, which are welded to the associated port without the port being welded through.

Fluid housing

A diaphragm actuator has a first frame part and a second frame part, between which at least two diaphragm layers are disposed in a stacked manner and formed as electro-active polymer layers. Furthermore, a method for producing a diaphragm actuator is described.

Diaphragm actuator and method for producing a diaphragm actuator

A drive unit for a micro valve comprises a housing, a spring and at least one shape memory alloy element which is attached to the housing in a deflectable manner. The shape memory alloy element is loaded by the spring towards a deflected position and is movable in response to a temperature increase and the shape memory effect activated thereby, into a position which is at least less deflected against an increasing load by the spring. A normally closed micro valve includes a fluid housing, at least one valve seat, a sealing element opposite the valve seat, and a drive unit of the type mentioned above. The shape memory alloy element cooperates with the sealing element and exerts an operating force on the sealing element for closing and opening the valve seat with or against a compression spring force.

Drive unit for a micro valve comprising a shape memory alloy, and micro valve

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Kuenzelsau, Germany

Klaus-Guenther Beck