Water-bearing domestic appliance comprising a drainage pump and corresponding drainage pump
AssigneeBSH Bosch und Siemens Hausgeraete GmbH
InventorRoland Ertle
Life of this patent
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Abstract
A water-bearing domestic appliance includes a retainer for retaining items to be subjected to a liquid treatment and a drainage pump having an inlet through which liquid enters the drainage pump. The drainage pump also includes an outlet through which liquid exits the drainage pump, a pump impeller for conveying liquid along a passage through the drainage pump extending from the inlet to the outlet, and a separate chamber located upstream of the pump impeller relative to the direction of flow of liquid through the passage. The separate chamber has an internal diameter and an external diameter and has respective radial bores on its external diameter and in the vicinity of its internal diameter.
Claims14
A water-bearing domestic appliance comprising:
- a retainer for retaining items to be subjected to a liquid treatment:
- and
- a drainage pump having an inlet through which liquid enters the drainage pump, an outlet through which liquid exits the drainage pump, a pump impeller for conveying liquid along a passage through the drainage pump extending from the inlet to the outlet, and a separate chamber located downstream of the pump impeller relative to the direction of flow of liquid through the passage, the separate chamber having an internal diameter and an external diameter and having respective radial bores on its external diameter and in the vicinity of its internal diameter, and the operation of the drainage pump being such that liquid received into the drainage pump via the inlet flows into an area of the passage at which the pump impeller is operating and thereafter flows further along the passage with at least some of the liquid flowing into contact with the separate chamber downstream of the pump impeller and entering and passing through the radial bores of the separate chamber.
A drainage pump comprising:
- an inlet through which liquid enters the drainage pump;
- an outlet through which liquid exits the drainage pump;
- a pump impeller for conveying liquid along a passage through the drainage pump extending from the inlet to the outlet;
- and
- a separate chamber located downstream of the pump impeller relative to the direction of flow of liquid through the passage, the separate chamber having an internal diameter and an external diameter and having respective radial bores on its external diameter and in the vicinity of its internal diameter, and the operation of the drainage pump being such that liquid received into the drainage pump via the inlet flows into an area of the passage at which the pump impeller is operating and thereafter flows further along the passage with at least some of the liquid flowing into contact with the separate chamber downstream of the pump impeller and entering and passing through the radial bores of the separate chamber.
Dependencies are inferred from the claim text.