Spray arm speed regulator

A method for regulating a speed of a spray arm about an axis, wherein the spray arm includes at least one deflector pivotably attached to the spray arm and having a curved surface, a second surface arranged opposite the curved surface in a first direction parallel to a pivot axis of the at least one deflector, and a side surface that extends in the first direction between the curved surface and the second surface, wherein each of the curved surface and the second surface extend in a second direction that is perpendicular to the pivot axis of the at least one deflector, wherein at least one nozzle is arranged relative to the curved surface, the method comprising:

• emitting fluid from the at least one nozzle to strike the curved surface, the fluid striking the curved surface
• i) generating a first force that tends to pivot the at least one deflector toward the spray arm, and
• ii) generating a second force that tends to rotate the spray arm about the axis, wherein a magnitude of the second force varies based on an impact location on the curved surface struck by the emitted fluid, and
• rotation of the spray arm generating a third force that tends to pivot the at least one deflector away from the spray arm,
• whereby a balance between the first force and the third force is achieved at a predefined rotational speed.