Laundry washing machine and method for operating the laundry washing machine
AssigneeElectrolux Appliances Aktiebolag
InventorsAndrea Contarini, Mariano Tartuferi, Maurizio Del Pos, Andrea Zattin
Life of this patent
Estimating the term…
Abstract
A laundry washing machine having a washing drum, a washing tub external to the washing drum and a recirculation system having a first duct terminating at a first region of the washing tub and a second duct terminating at a second region of the washing tub. The recirculation system comprises a recirculation pump for conveying liquid to a bifurcation for the first duct and the second duct. The recirculation pump has a first functioning condition wherein liquid circulates only in the first duct and a second functioning condition wherein liquid circulates both in the first and second ducts.
Claims15
A laundry washing machine comprising:
- a washing drum configured to receive laundry to be washed;
- a washing tub external to the washing drum;
- a water supply system configured to convey water to the washing tub;
- and
- a recirculation system configured to drain a liquid from the bottom of the washing tub and to re-admit the liquid into a first region and a second region of the washing tub, the recirculation system comprising:
- a first duct terminating at the first region wherein the liquid may circulate to reach the washing tub,
- a second duct terminating at the second region wherein the liquid may circulate to reach the washing tub, and
- a recirculation pump having an inlet connected to the bottom of the washing tub and an outlet at a bifurcation leading to the first duct and the second duct,
- wherein the first duct and the second duct are configured so that the liquid in the first duct requires a first pressure to reach the washing tub which is lower than a second pressure required for the liquid in the second duct to reach the washing tub, and
- the recirculation pump has a first functioning condition wherein the liquid circulates only in the first duct to reach the washing tub and a second functioning condition wherein liquid circulates both in the first and the second duct to reach the washing tub.
A method for operating a laundry washing machine comprising:
- a washing drum configured to receive laundry to be washed;
- a washing tub external to a washing drum;
- a water supply system configured to convey water to the washing tub;
- a recirculation system configured to drain a liquid from the bottom of the washing tub and to re-admit the liquid into a first region and a second region of the washing tub, the recirculation system comprising:
- a first duct terminating at the first region wherein the liquid may circulate to reach the washing tub;
- a second duct terminating at the second region wherein the liquid may circulate to reach the washing tub;
- a recirculation pump having an inlet connected to the bottom of the washing tub and an outlet configured to convey the liquid to a bifurcation leading to the first duct and the second duct;
- wherein the first duct and the second duct are configured so that the liquid in the first duct requires a first pressure to reach the washing tub which is lower than a second pressure required for the liquid in the second duct to reach the washing tub;
- wherein the method comprises:
- operating the recirculation pump in a first functioning condition to circulate liquid only in the first duct to reach the washing tub;
- and
- operating the recirculation pump in a second functioning condition to circulate liquid both in the first duct and the second duct to reach the washing tub.
Dependencies are inferred from the claim text.