Water diverter apparatus and method

1. A water diverter apparatus comprising

a housing ( 10 ) having an inlet section ( 12 ) and two outlet sections ( 14 ), with a separation angle of less than 180° between the outlet sections ( 14 ), and

a flow directing member that can be adjusted by rotation about a shaft ( 18 ) supported in the housing ( 10 ),

characterised in that

the flow directing member is a closing member ( 16 ) arranged downstream of the shaft ( 18 ), the closing member ( 16 ) being connected with the shaft ( 18 ) via a spacer ( 17 ) and having a closing surface arranged transversely to a flow direction, the closing member ( 16 ) having a first position adapted to close one of the outlet sections ( 14 ), a second position adapted to close the other outlet section ( 14 ), and a third position between the first and the second positions, adapted to allow water to flow into both outlet sections ( 14 ) in their entire cross-sections, wherein the closing member ( 16 ) is arranged downstream of the shaft ( 18 ) in all of the first, second and third positions, and

the water diverter apparatus further comprising a motor ( 20 ) connected directly or indirectly to the shaft ( 18 ), wherein the motor ( 20 ) is adapted for generating a pulsating water flow in the outlet sections ( 14 ) by moving in periodically alternating manner the closing member ( 16 ) into the first and into the second positions.

2. The apparatus according to claim 1 , characterised in that the shaft ( 18 ) is arranged perpendicular to the flow plane in the bisector plane of the separation angle at a separation of the outlet sections ( 14 ).

3. The apparatus according to claim 1 , characterised in that the closing member ( 16 ) has a cylindrical or a spherical closing surface.

4. The apparatus according to claim 3 , characterised in that a groove ( 22 ) is formed on an inner surface of the housing ( 10 ), along a trajectory of a peripheral edge of the closing surface of the closing member ( 16 ), wherein the closing member ( 16 ) and the groove ( 22 ) together form a labyrinth seal.

5. The apparatus according to claim 1 , characterised in that the spacer ( 17 ) is formed as a flat or rod-like member arranged parallel to the flow direction of the water.

6. The apparatus according to claim 1 , characterised in that the inlet section ( 12 ) and the outlet sections ( 14 ) have their respective centrelines arranged in a common flow plane.

7. The apparatus according to claim 1 , characterised in that the housing ( 10 ) consists of at least two portions, preferably of two portions arranged symmetrically with respect to the flow plane, more preferably two congruent portions arranged symmetrically with respect to the flow plane.

8. The apparatus according to claim 1 , characterised in that a threaded extension piece ( 26 ) adapted to be connected to a water pipeline is attached via a threaded nut ( 24 ) to a terminal edge of the inlet section ( 12 ) and/or to a terminal edge of at least one of the outlet sections ( 14 ).

9. A method for operating a water diverter apparatus comprising an inlet section ( 12 ) and two outlet sections ( 14 ),

characterised by

using a water diverter apparatus according to claim 1 ,

moving the closing member ( 16 ) in its various positions by rotating the shaft ( 18 ) and

generating a pulsating water flow in the outlet sections ( 14 ) by moving, in a periodically alternating manner, the closing member ( 16 ) into the first and into the second positions by controlling a motor ( 20 ) directly or indirectly connected to the shaft ( 18 ).