Abstract: The invention relates to an electric connection assembly (1), in particular a secondary circuit welding connection assembly, which is used to provide an electric contact between an electrode-side connection point (2) of an electrode (3) and a supply-side connection point (4) of a supply point (5) of a welding device (S). The connection assembly (1) comprises a current conductor (6) with a first contact section (7) arranged at one end for connecting to the electrode-side connection point (2) and a second contact section (8) at the end opposite the first contact section (7) for connecting to the supply-side connection point (4). The first contact section (7) together with the electrode-side connection point (2) and the second contact section (8) together with the supply-side connection point (4) are in the form of a socket-plug connection (20, 21) and can be plugged together along a plug-in axis (A).

Abstract: An actuator assembly is capable of manipulating a fluid flowing around a flow body, the fluid being received or able to be received in a volume of at least one cavity arranged in the flow body, and the fluid passing through at least one opening in the at least one cavity during manipulation of the fluid. In this process, the volume of the at least one cavity can be changed by moving a wall portion delimiting or defining the cavity. The actuator assembly has a drive unit with at least one actuator, which executes a periodic movement over time when actuated, causing a translational movement of the wall portion delimiting or defining the cavity and the wall portion being shaped in terms the topology thereof in such a way that it is adapted to the shape of the at least one cavity with the at least one opening thereof.

Abstract: An actuator assembly is capable of manipulating a fluid flowing around a flow body, the fluid being received or able to be received in a volume of at least one cavity arranged in the flow body, and the fluid passing through at least one opening in the at least one cavity during manipulation of the fluid. In this process, the volume of the at least one cavity can be changed by moving a wall portion delimiting or defining the cavity. The actuator assembly has a drive unit with at least one actuator, which executes a periodic movement over time when actuated, causing a translational movement of the wall portion delimiting or defining the cavity and the wall portion being shaped in terms the topology thereof in such a way that it is adapted to the shape of the at least one cavity with the at least one opening thereof.