Abstract: A bipolar plate for an electrochemical system comprising a first and second separator plate arranged adjacent to each other. Each separator plate has a first through-opening for passing a reaction medium, a second through-opening for passing a temperature control medium, an active region, and a distribution or collection region with flow channels separated by webs for guiding the temperature control medium between the second through-opening and the active region. The distribution or collection region also has a compensating region, where, in the unassembled state of the bipolar plate, the webs facing the adjacent separator plate are spaced apart from the adjacent plate except in an elastic contact region spaced from an outer edge of the compensating region in which a section of a web projects such that the section forms a contact surface with the adjacent separator plate.

Abstract: An integrally bladed rotor for a turbomachine, in particular a compressor or turbine stage of a gas turbine, to which at least one separately formed impulse element housing (40; 40?) is fastened by at least one fastening element (30; 30?) which engages for this purpose into an opening (41) of the impulse element housing and into an opening (11) of the rotor, the impulse element housing having at least one cavity (44) in which at least one impulse element (5) is accommodated with play.

Abstract: An integrally bladed rotor for a turbomachine, in particular a compressor or turbine stage of a gas turbine, to which at least one separately formed impulse element housing (40; 40?) is fastened by at least one fastening element (30; 30?) which engages for this purpose into an opening (41) of the impulse element housing and into an opening (11) of the rotor, the impulse element housing having at least one cavity (44) in which at least one impulse element (5) is accommodated with play.