Patent ID: 11913458
Assignee: LG ELECTRONICS INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A pump comprising:
a housing;
an impeller disposed in the housing and rotating to generate a flow of fluid; and
a pump motor configured to rotate the impeller,
wherein the impeller comprises:
a boss coupled to a rotating shaft of the pump motor;
a first plate extending radially from an upper end of the boss and having a disk shape;
a plurality of blades extending from an outer circumferential surface of the boss in a radial direction, a portion of an upper end of each of the plurality of blades being in contact with the first plate; and
a second plate having a surface parallel to the first plate, spaced downward from the first plate by a predetermined distance, and connected to the plurality of blades, and

wherein a width of the second plate in the radial direction is greater than a distance which the second plate is radially spaced from the first plate, and is less than a length of the first plate in the radial direction from the boss.