Water driven generator for sanitary domestic installation

A water fitting for use in domestic sanitary installation comprising:

• a flow duct, a turbine wheel located in the flow duct so as to be subjected to water flowing through the duct, an electrical generator driven by the turbine wheel having a stator and a rotor including a permanent magnet arrangement for the excitation of the generator, a gap separating the rotor and stator, and a unitary beaker shaped seal element made from a non-magnetic metal and fixed in the gap between the stator and the rotor, the seal element enclosing the rotor, sealing the flow duct off from the stator, and including a bearing element on an end face thereof rotatably supporting the rotor, the stator being fixed to an outer surface of the beaker shaped seal element to surround the rotor.

A water fitting for sanitary installations having a casing defining a flow duct, a turbine wheel located in this flow duct and subjected to flowing water, an electrical generator located outside the casing comprising a stator and a rotor driven by the turbine wheel, the rotor having a permanent magnet arrangement for the excitation of the generator, a shaft element passing through an opening in the casing connecting the turbine wheel and the rotor, and a seal arrangement for sealing the flow duct, the seal arrangement comprising a beaker-shaped sealing element fixedly located in the gap between the stator and the rotor sealing the flow duct off from the stator, the sealing element being made from non-magnetic metal, and a throttle element seating on the shaft element between the turbine wheel and the rotor, the throttle element having a lip-shaped sealing unit being in contact with the casing around the opening and being pressed in a direction towards the casing by the water in the flow duct.