Water-conducting household appliance having a rotatable component

摘要

A water-conducting household appliance having a rotatable component, which is rotatably mounted on a stationary component of the household appliance by way of a bearing formed from a metallic material, and having a sealing element, by means of which the bearing is sealed off from a liquid chamber of the household appliance, wherein a contact surface of the sealing element is in contact with a contact surface of a shaft part which is connected to the moveable component and can be rotated relative to the sealing element, and slides on the contact surface of the shaft part. A pump is on at least one of the contact surfaces, by means of which liquid can be conveyed out of an intermediate space embodied between the respective contact surfaces in the direction of the liquid chamber when rotating the rotatable component.

主权项

1. A water-conducting household appliance comprising:
a liquid chamber; a stationary component; a metallic bearing; a rotatable component rotatably mounted on the stationary component of the household appliance by the metallic bearing; a shaft connected to the rotatable component, the shaft having a shaft contact surface; a seal structured to seal the metallic bearing from the liquid chamber, the seal comprising a seal contact surface in contact with the shaft contact surface, wherein the shaft is rotatable relative to the seal such that the seal contact surface slides on the shaft contact surface; and a pump structure configured to convey liquid from an intermediate space between the seal contact surface and the shaft contact surface to the liquid chamber upon rotation of the rotatable component, wherein the pump structure further comprises a plurality of elements provided on at least one of the shaft contact surface and the seal contact surface, wherein each of the plurality of elements comprises two radial walls converging toward one another in a direction of the liquid chamber, wherein the plurality of elements are arranged in at least two rows adjacent one another, and wherein the plurality of elements in each row of the at least two rows are staggered relative to the plurality of elements in each adjacent row.