Patent ID: 7426933

Claim:
A water distribution system for a dishwasher having a washing chamber defined by opposite side walls, a bottom wall, a top wall, a back wall, and a door, the water distribution system comprising: a disk having an upward facing surface, a downward facing surface and an outer peripheral edge, the disk being mounted on the top wall for rotation about a vertical axis, the disk having a plurality of vanes extending vertically from the upward facing surface toward the top wall and horizontally from about the axis of rotation to about the peripheral edge, the plurality of vanes forming a plurality of openings along the peripheral edge of the disk; and a water nozzle positioned at a distance greater than a radius of the disk from the axis of rotation of the disk on one of the back wall, side walls, or top wall, the water nozzle configured and arranged to project a single water jet substantially horizontally and with linear kinetic energy along a line lying in a plane, the single water jet being directed by the nozzle generally radially inwardly towards the axis of rotation of the disk into the plurality of openings to rotate the disk and thereby redirect the water radially outwardly horizontally with radial kinetic energy substantially co-planar with the linear kinetic energy of the single water jet, for distribution of the water in the washing chamber.