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

Claim 9:
10. A dishwashing appliance defining a vertical direction, the dishwashing appliance comprising:
a tub that defines a wash chamber for receipt of articles for washing;
a sump positioned at a bottom portion of the tub along the vertical direction;
a pump comprising a pump housing mounted to the sump, the pump housing defining mutually perpendicular X-, Y-, and Z-axes, a center of gravity of the pump defined within the pump, wherein the Y-axis is a vertical axis extending along the vertical direction from the center of gravity;
a motor mounted to the pump housing below the sump; and
a vibration damper attached to the pump housing to absorb vibrations thereon, 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, and
a second damper mass disposed on the free end of the second spring beam at the second radial side disposed on a second side of the center of gravity relative to the Y-axis, and
a mounting bracket joining the first spring beam and the second spring beam, the mounting bracket defining a plurality of discrete attachment points attached to the pump housing, the discrete attachment points each comprising one or more mechanical fasteners, 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, a separate attachment point of the plurality of discrete attachment points being horizontally offset from the center of gravity and lower than the at least one attachment point such that the separate attachment point is discontinuous from the at least one attachment point.