US Patent 9492055 Dishwasher with spray system

A dishwasher includes a tub at least partially defining a treating chamber and a spraying system for supplying liquid to the treating chamber. The spraying system includes a sprayer having a body with an interior, a liquid passage provided in the interior, and an outlet extending through the body and in fluid communication with the liquid passage. A fluid coupling defines a duration of a fluid communication between an opening of a valve body and the outlet.