Patent ID: 11933320
Assignee: HAIER US APPLIANCE SOLUTIONS, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  A | IPC A  F

Claim 0:
1. A pump assembly for a domestic appliance defining a vertical axis, the pump assembly comprising:
a fluid pump defining a center of gravity and mutually perpendicular X-, Y-, and Z-axes, wherein the Y-axis is a vertical axis extending along a vertical direction from the center of gravity, the fluid pump comprising:
a pump housing, and
a motor mounted to the pump housing; and

a vibration damper attached to the fluid pump to absorb vibrations thereof, the vibration damper comprising
a first spring beam extending longitudinally along a longitudinal direction non-parallel to the Y-axis between a fixed end proximal to the pump housing and a free end distal to the pump housing, the free end of the first spring beam being offset from the center of gravity at a first radial side disposed on a first side of the center of gravity relative to the Y-axis,
a first damper mass disposed on the free end of the first spring beam at the first radial side,
a second spring beam extending longitudinally along the longitudinal direction non-parallel to the Y-axis between a fixed end proximal to the pump housing and a free end distal to the pump housing, the free end of the second spring beam being offset from the center of gravity at a second radial side disposed on a second side of the center of gravity relative to the Y-axis,
a second damper mass disposed on the free end of the second spring beam at the second radial side, and
a mounting bracket joining the first spring beam and the second spring beam, the mounting bracket defining a plurality of discrete attachment points, the plurality of discrete attachment points each comprising one or more mechanical fasteners attached to the pump housing and horizontally spaced apart from each other, at least one attachment point of the plurality of discrete attachment points being aligned with and above the center of gravity along the Y-axis.