Siemens Aktiengesellschaft

Jobst Verieger

David-Walter Branston

Guenter Lins

Powder aerosols are introduced into a gas stream in metered form and without any aggregates. To this end, according to the invention, a powder is drawn, for example by mechanical device, from a reservoir area and is converted into a powder aerosol which is introduced within a flowing gas stream into a container to which ultrasound is applied. The ultrasound breaks down powder lumps and aggregates, and the aerosol can be fed in a uniform, fine powder distribution within the gas stream to a plasma burner. Apparatus for carrying out this invention includes a feed tube (,) connected to a mechanical powder feed device (,), so that an aerosol containing the powder enters a vessel (,) containing the ultrasound horn (,). The method and the associated apparatus are used for the coating of components, preferably for applying a protective coating to a turbine blade.

Growing community of inventors

Erlangen, Germany

Jobst Verieger