Abstract: The invention relates to a method for joining at least two rotor elements of at least one rotor of a turbomachine. The detecting of a radial runout of at least one radially outer-lying cylindrical surface of the rotor elements at each of at least two points that are spaced axially apart from each other occurs by a measuring device. Depending on this, a relative mounting alignment of the rotor elements with respect to one another, at which the distance of the total center of mass of the rotor is minimized relative to its total axis of rotation, is determined. The invention detects of the radial runout of the radially outer-lying cylindrical surfaces of the rotor elements occurs optically by at least one optical sensor element of the measuring device. The invention further relates to a measuring apparatus and to a mounting apparatus.

Abstract: The invention relates to a method for cleaning a turbo-machine stage (100) consisting of at least one of the following steps: a cleaning nozzle (1) is introduced into an opening of a turbo-machine, in particular into an inspection opening (220); and the blade (100) of the stage is acted upon by solid particles, said particles subliming at the blade temperature, in particular into dry ice particles.

Abstract: The invention relates to a method for joining at least two rotor elements of at least one rotor of a turbomachine. The detecting of a radial runout of at least one radially outer-lying cylindrical surface of the rotor elements at each of at least two points that are spaced axially apart from each other occurs by a measuring device. Depending on this, a relative mounting alignment of the rotor elements with respect to one another, at which the distance of the total center of mass of the rotor is minimized relative to its total axis of rotation, is determined. The invention detects of the radial runout of the radially outer-lying cylindrical surfaces of the rotor elements occurs optically by at least one optical sensor element of the measuring device. The invention further relates to a measuring apparatus and to a mounting apparatus.

Abstract: The invention relates to a method for cleaning a turbo-machine stage (100) consisting of at least one of the following steps: a cleaning nozzle (1) is introduced into an opening of a turbo-machine, in particular into an inspection opening (220); and the blade (100) of the stage is acted upon by solid particles, said particles subliming at the blade temperature, in particular into dry ice particles.

Abstract: A method for the maintenance of gas turbines is provided. According to the method, a gas turbine is dismantled and modules, structural components, or component parts of the aeroplane mechanism are subsequently inspected and/or repaired. Then, an aeroplane mechanism consisting of inspected and/or repaired or new modules, structural components or component parts is mounted. Dismantling and/or mounting is divided into at least two work steps. A work station is provided for each work step and the aeroplane mechanism, modules, structural components or component parts of the aeroplane mechanism are displaced by the work station provided for carrying out one work step.

Abstract: A method for the maintenance of gas turbines is provided. According to method, a gas turbine is dismantled and modules, structural components, or component parts of the aeroplane mechanism are subsequently inspected and/or repaired. Then, an aeroplane mechanism consisting of inspected and/or repaired or new modules, structural components or component parts is mounted. Dismantling and/or mounting is divided into at least two work steps. A work station is provided for each work step and the aeroplane mechanism, modules, structural components or component parts of the aeroplane mechanism are displaced by the work station provided for carrying out one work step.