A dishwasher includes a tub. The dishwasher further includes a spray arm that includes a main arm and an auxiliary arm. The dishwasher further includes a fixed gear part that is connected to the tub, that is configured to rotatably support the main arm, and that includes teeth along an outer circumferential surface of the fixed gear part. The dishwasher further includes a rotating gear part that is connected to the main arm and that is configured to rotate and engage the teeth of the fixed gear part based on rotation of the main arm. The dishwasher further includes a link unit that is connected to the rotating gear part, the main arm, and the auxiliary arm, that is configured to move based on rotation of the rotating gear part, and that is configured to guide reciprocation of the auxiliary arm through the predetermined arc.

A spray arm system for cleaning articles in the wash chamber of a dishwasher appliance is provided. The spray arm system includes an elongated spray arm and an orbital spray arm positioned near opposite, bottom corners of the wash chamber. The elongated spray arm pivots about one corner within a horizontal plane and the orbital spray arm rotates about a central axis near the opposite corner. The elongated spray arm may be motor-driven, the orbital spray arm may be fluid-powered, and the spray arms may be operated independently or at the same time.

A spray arm system for cleaning articles in the wash chamber of a dishwasher appliance is provided. The spray arm system includes an elongated spray arm and an orbital spray arm positioned near opposite, bottom corners of the wash chamber. The elongated spray arm pivots about one corner within a horizontal plane and the orbital spray arm rotates about a central axis near the opposite corner. The elongated spray arm may be motor-driven, the orbital spray arm may be fluid-powered, and the spray arms may be operated independently or at the same time.

A washing machine (1) for washing animal cages and/or other equipment or accessories used in animal facilities and/or in research laboratories, comprising a washing chamber (2); a plurality of rods (3) arranged inside the washing chamber (2) and designed for spraying a fluid on a load to be washed, each rod (3) comprising a plurality of nozzles (4) for the inlet of said fluid in said washing chamber (2); pumping means associated with the rods (3) to feed the fluid to the nozzles (4); the machine 1 comprises a maximum of six of such rods (3).

A washing machine (1) for washing animal cages and/or other equipment or accessories used in animal facilities and/or in research laboratories, comprising a washing chamber (2); a plurality of rods (3) arranged inside the washing chamber (2) and designed for spraying a fluid on a load to be washed, each rod (3) comprising a plurality of nozzles (4) for the inlet of said fluid in said washing chamber (2); pumping means associated with the rods (3) to feed the fluid to the nozzles (4); the machine 1 comprises a maximum of six of such rods (3).

A dishwasher and silverware basket therefor include an interior sprayer integrated into the silverware basket and capable of directing a spray of fluid within one or more compartments of the silverware basket to assist in cleaning utensils such as silverware, cutlery, etc. housed within the silverware basket.

A dishwasher and silverware basket therefor include an interior sprayer integrated into the silverware basket and capable of directing a spray of fluid within one or more compartments of the silverware basket to assist in cleaning utensils such as silverware, cutlery, etc. housed within the silverware basket.

A dishwasher may include a sump configured to store water, a main arm disposed at the sump and configured to supply water from the sump, an auxiliary arm rotatably disposed at the main arm and configured to spray water, and an auxiliary arm connection member disposed at the main arm and configured to rotatably support the auxiliary arm, where the auxiliary arm may include an auxiliary flow passage configured to allow water flow through the auxiliary arm, where the main arm may include a transfer flow passage in fluid communication with the auxiliary flow passage, where the auxiliary arm connection member may include a flow tube disposed at the main arm in fluid communication with the transfer flow passage and the auxiliary flow passage.

A dishwasher may include a sump configured to store water, a main arm disposed at the sump and configured to supply water from the sump, an auxiliary arm rotatably disposed at the main arm and configured to spray water, and an auxiliary arm connection member disposed at the main arm and configured to rotatably support the auxiliary arm, where the auxiliary arm may include an auxiliary flow passage configured to allow water flow through the auxiliary arm, where the main arm may include a transfer flow passage in fluid communication with the auxiliary flow passage, where the auxiliary arm connection member may include a flow tube disposed at the main arm in fluid communication with the transfer flow passage and the auxiliary flow passage.

A spray assembly for a dishwasher appliance is provided. The spray assembly is pivotally mounted over a wash rack and includes one or more spinning nozzles for directing a flow of wash fluid onto articles placed within the wash rack. The spinning nozzles are rotatably mounted to the spray assembly and include one or more vanes that harness the flow of wash fluid to rotate the spinning nozzle. The spinning nozzle has one or more discharge orifices that direct the flow of wash fluid onto articles in the wash chamber in a circular pattern as the spinning nozzle rotates, resulting in better spray coverage with fewer nozzles.