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US 11,612,298 B2Granted
Dishwasher with high-velocity sprayer
AssigneeWhirlpool Corporation
InventorsAlvaro Vallejo Noriega, Harsh R. Mondkar, Kevin Green
Life of this patent
Estimating the term…
Abstract
A dishwasher for treating dishes according to a cycle of operation, the dishwasher comprising a tub at least partially defining a treating chamber, a dish rack received within the treating chamber and configured for receiving dishes for treatment during the cycle of operation, a sprayer located within the treating chamber and above the dish rack, and emitting a liquid onto the dish rack to form a high-speed spray.
Claims20
A dishwasher for treating dishes according to a cycle of operation, the dishwasher comprising:
- a tub at least partially defining a treating chamber;
- a dish rack received within the treating chamber and configured for receiving dishes for treatment during the cycle of operation;
- a first sprayer located within the treating chamber and above the dish rack, and emitting a liquid onto the dish rack to form a high-speed spray, the first sprayer comprising a plurality of nozzles adapted to vary a velocity of the high-speed spray based on dish height of the dishes in the dish rack;
- a second sprayer located within the treating chamber and above the dish rack, wherein the second sprayer emits a spray at a speed lower than that of the high-speed spray to form a normal-speed spray;
- a recirculation system selectively fluidly coupling the tub to the first sprayer and the second sprayer;
- and
- a controller operably coupled to the recirculation system and configured to operate the recirculation system according to the cycle of operation including wherein liquid is supplied to the second sprayer during a first phase of the cycle of operation to form the normal-speed spray that forms puddles of wash liquid on the dishes in the dish rack, and liquid is supplied to the first sprayer during a second phase, after the first phase, of the cycle of operation to form the high-speed spray on the dishes in the dish rack that at least partially removes a quantity of the puddles to decrease a volume of the puddles of the wash liquid on the dishes in the dish rack.
4 more elements
A dishwasher for treating dishes according to a cycle of operation, the dishwasher comprising:
- a tub at least partially defining a treating chamber;
- a set of dish racks received within the treating chamber and configured for receiving dishes for treatment during the cycle of operation, the set of dish racks including a lower dish rack and further comprising an upper dish rack located above the lower dish rack;
- a first sprayer located within the treating chamber and above at least one of the set of dish racks, and emitting a liquid onto the at least one of the set of dish racks to form a high-speed spray, the first sprayer comprising a plurality of nozzles adapted to vary a velocity of the high-speed spray based on dish height of the dishes in the at least one of the set of dish racks;
- a second sprayer located within the treating chamber and above the at least one of the set of dish racks, wherein the second sprayer emits a spray at a speed lower than that of the high-speed spray to form a normal-speed spray;
- a recirculation system selectively fluidly coupling the tub to the first sprayer and the second sprayer;
- a valve mechanism configured to alternatively or selectively operate the first sprayer and the second sprayer to reduce a relative or cumulative amount of liquid flow during operation;
- and
- a controller operably coupled to the recirculation system and configured to operate the recirculation system according to the cycle of operation including wherein liquid is supplied to the second sprayer during a first phase of the cycle of operation to form the normal-speed spray that forms puddles of wash liquid on the dishes in the at least one of the set of dish racks, and liquid is supplied to the first sprayer during a second phase, after the first phase, of the cycle of operation to form the high-speed spray on the dishes in the at least one of the set of dish racks that at least partially removes a quantity of the puddles to decrease a volume of the puddles of the wash liquid on the dishes in the at least one of the set of dish racks.
5 more elements
A dishwasher for treating dishes according to a cycle of operation, the dishwasher comprising:
- a tub at least partially defining a treating chamber;
- a set of dish racks received within the treating chamber and configured for receiving dishes for treatment during the cycle of operation, the set of dish racks including a lower dish rack and further comprising an upper dish rack located above the lower dish rack;
- a sprayer located within the treating chamber and above the upper dish rack, and emitting a liquid onto the upper dish rack to form a high-speed spray, the sprayer comprising a plurality of nozzles adapted to vary a velocity of the high-speed spray based on dish height of the dishes in the upper dish rack;
- a recirculation system selectively fluidly coupling the tub to the sprayer;
- and
- a controller operably coupled to the recirculation system and configured to operate the recirculation system according to the cycle of operation including wherein liquid is supplied to the sprayer during a second phase, after a first phase, of the cycle of operation to form the high-speed spray on the dishes in the upper dish rack that at least partially removes a quantity of previously formed puddles of wash liquid on the dishes in the upper dish rack to decrease a volume of the puddles of the wash liquid on the dishes in the upper dish rack.
3 more elements
Dependencies are inferred from the claim text.