Abstract: A vertical packaging machine that includes a hopper with a hopper inlet mouth and at least one hopper outlet mouth, a tube arranged downstream of the hopper with a tube inlet mouth and a tube outlet mouth. A supply conduit is formed by at least the hopper and the tube. Acceleration means is provided and configured for injecting a gaseous fluid into the supply conduit through two injection ports arranged in the supply conduit at different heights with respect to the tube outlet mouth and for causing, with said injection, part of the air present in said supply conduit above the corresponding injection port to follow the injected flow.

Abstract: Method and machine for generating packages from a continuous film. In the method, the quality of the seals formed when generating packages on the film is furthermore verified, and to that end, a chamber is closed around an area of a film tube comprising an actuation area, a transverse cut and a transverse seal on each side of the transverse cut being generated in the actuation area. For the verification, pressure in the chamber is reduced, a property of the fluid present in the chamber or in the part of the tube present in the chamber is detected, and the quality of at least one of the seals present in the chamber is determined depending on the detection.

Abstract: A vertical packaging machine for packaging products in a modified atmosphere. According to one embodiment, the vertical packaging machine includes a hopper through which the products to be packaged are introduced, a hollow forming element arranged downstream of the hopper, at least the hopper and the forming element forming a supply conduit through which the product to be packaged falls. The vertical packaging machine also includes an injection device configured for injecting a gaseous fluid into the supply conduit. A gas supply source is communicated with the inside of the supply conduit, the gas supplied to the supply conduit being suitable for packaging products in a modified atmosphere. A supply unit communicates the gas source with the inside of the supply conduit.

Abstract: A gas-cooled generator has a rotor rotatable about an axis, a stator surrounding the rotor concentrically and a rotating exciter connected to the rotor. The stator, rotor and exciter are arranged along the axis on a common base frame. A first cooler configured to cool the rotor and stator and second cooler configured to cool the exciter are connected to one another for the exchange of cooling gas via the base frame. At least one tube running in the base frame provides the connection between the first and second coolers.

Abstract: An electrical conductor and in particular a conductor bar of an electrical machine, particularly a generator or transformer, in which an optical measuring device can be integrally arranged. A measuring unit includes an electrical conductor and an optical measuring device arranged in the conductor, and a production method for producing such an electrical conductor is described. The electrical conductor (10), having a conductor cross section and also an extent in the conductor longitudinal direction, includes a recess (11, 12, 13) in the conductor longitudinal direction at least along a section of the conductor, for integrated arrangement of a signal conductor, in particular an optical waveguide.

Abstract: The invention relates to a dynamo electric machine with a brushless exciter which comprises an exciter rotor driven by the rotor of the dynamo electric machine, and an exciter stator interacting with the exciter rotor. The design of the machine with respect to cooling is facilitated by cooling the exciter with a gaseous cooling medium, particularly air, by means of an independent cooling circuit, and by providing a separate fan for circulating the gaseous cooling medium within the cooling circuit of the exciter.

Abstract: A gas-cooled generator has a rotor rotatable about an axis, a stator surrounding the rotor concentrically and a rotating exciter connected to the rotor. The stator, rotor and exciter are arranged along the axis on a common base frame. A first cooler configured to cool the rotor and stator and second cooler configured to cool the exciter are connected to one another for the exchange of cooling gas via the base frame. At least one tube running in the base frame provides the connection between the first and second coolers.

Abstract: An electrical conductor and in particular a conductor bar of an electrical machine, particularly a generator or transformer, in which an optical measuring device can be integrally arranged. A measuring unit includes an electrical conductor and an optical measuring device arranged in the conductor, and a production method for producing such an electrical conductor is described. The electrical conductor (10), having a conductor cross section and also an extent in the conductor longitudinal direction, includes a recess (11, 12, 13) in the conductor longitudinal direction at least along a section of the conductor, for integrated arrangement of a signal conductor, in particular an optical waveguide.