Dishwasher and method of operating
AssigneeWhirlpool Corporation
InventorsMatthias Emanuel Freiherr Von Andrian-Werburg, Veronica Marin Kramer, Miron Wawrzusiak
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Abstract
A dishwasher and method of operating a dishwasher according to a cycle of operation are described herein. The dishwasher includes a tub at least partially defining a treating chamber, a rotatable spray arm comprising a nozzle outlet, and a liquid supply conduit fluidly coupled to the spray arm. A pump can be fluidly coupled to the liquid supply conduit and operated to flow liquid through an aperture in the liquid supply conduit.
Claims20
A method of operating a dishwasher, the method comprising:
- operating a pump to supply liquid through a stationary supply conduit to a rotatable spray arm;
- emitting a first spray of the pumped liquid from a first aperture in the rotatable spray arm, with the first spray defining a spray path as the rotatable spray arm rotates;
- emitting a second spray of the pumped liquid from a second aperture in the stationary supply conduit into the spray path;
- and
- determining a rotational status of the rotatable spray arm by sensing a pump signal corresponding to impingement of the first spray and the second spray along the spray path.
A dishwasher for treating dishes according to a cycle of operation, the dishwasher comprising:
- a tub at least partially defining a treating chamber;
- a rotatable spray arm having an outlet defining a rotational path as the rotatable spray arm is rotated;
- a liquid supply conduit fluidly coupled to the spray arm, the liquid supply conduit comprising an aperture confronting a portion of the rotational path;
- a pump fluidly coupled to the liquid supply conduit;
- and
- a sensor sensing a change in one of a voltage or a current drawn by the pump indicative of an impingement of liquid emitted from the outlet and the aperture.
Dependencies are inferred from the claim text.