Memetis Gmbh

Karlsruher Institut Fur Technologie

Buerkert Werke Gmbh

Christof Megnin

Marko Brammer

Marcel Gueltig

Marcel Gültig

Christoph Wessendorf

Hinnerk Oßmer

Hinnerk Ossmer

An inventive actuator assembly has a substrate having a through hole. A circuit path is mounted on a side of the substrate and has a support surface that defines a circuit path through hole. An actuator made at least partially of a shape memory material is included and has first and second ends. The actuator has a through hole at least at the first end. A fastener extends through the actuator through hole, the circuit path through hole and the substrate through hole to permanently fix the substrate, the actuator and the circuit path at the first end of the actuator. The actuator may have through holes on both ends, such that the substrate includes a second substrate through hole and a second circuit path is provided that defines a second circuit path through hole. A second fastener fixes together the second end, the second circuit path and the substrate.

Actuator assembly

A valve for switching of media, such as liquids or gases, is opened, closed or put into an intermediate state by at least one actuator produced from a shape memory alloy. The at least one actuator, as a function of whether electricity is applied to it, acts on at least one valve ball or a valve plunger accommodated in a core element, so that the through-flow of a medium through a fluid part below the core element, with a media-tight membrane interposed between, is opened, interrupted or partially opened in regulated or controlled manner. The core element is produced from a mechanically rigid and thermally well-conductive material, has electrical conductor tracks for electrical connection of the actuator to a supply of electricity on the top side, as well as multiple threaded through-holes for underside connection with the fluid part and the membrane and/or for top-side connection with the actuator.

Valve having an actuator made of a shape memory alloy, with a flat geometry

An active fluid component () for connection with a substrate () has an interface which can be connected with the substrate () in a fluid-tight manner, and a magnet () arranged in the region of the interface.

Valve plug

Growing community of inventors

Speyer, Germany

Christof Megnin