US Patent 8152445 Fluid flow machine with fluid injector assembly

A fluid flow machine has a flow duct confined by a wall of a casing, with a fluid supply chamber being arranged in an area of the wall, which is in flow connection with an injector insert. The injector insert is provided with an injector nozzle for supplying fluid from the fluid supply chamber into the flow duct. The injector insert is closely connected to the wall of the fluid supply chamber.