Sealed steady bearing assembly for non-metallic vertical sump and process pumps
AssigneeITT Manufacturing Enterprises, Inc.
InventorsDouglas Paddock, Jeremiah Dennis Quill, Teresa Ann Worczak
Life of this patent
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Abstract
A bearing assembly for radially supporting a drive shaft of a pump such as a vertical sump and process pump. The bearing assembly has a bearing housing, a bearing having inner and outer surfaces, a bearing housing for holding the bearing, seals disposed in the housing for retaining a lubricant pumped into a space formed between the inner surface of the bearing and the drive shaft, and at least one water jacket disposed about a portion of the outer surface of the bearing. The water jacket circulates cooling liquid that contacts the outer surface of the bearing and carries away heat conducted through the bearing due to rotation of the drive shaft during operation of the pump.
Claims20
A bearing assembly for radially supporting a drive shaft of a pump, the bearing assembly comprising:
- a bearing having inner and outer surfaces, the inner surface for lubricated contact with the drive shaft of the pump, the outer surface for coolant contact with cooling liquid;
- a bearing housing for holding the bearing;
- seals disposed in the housing, the seals for preventing entry of liquid in a space formed between the inner surface of the bearing and the drive shaft when the bearing assembly is assembled to the pump and for retaining a lubricant in the space;
- and
- at least one water jacket disposed about a portion of the outer surface of the bearing, the water jacket for circulating cooling liquid that contacts the outer surface of the bearing and carries away heat conducted through the bearing due to rotation of the drive shaft during operation of the pump.
A pump comprising:
- a pump assembly;
- a motor and mounting assembly;
- a drive shaft connecting the motor and mounting assembly to the pump assembly, the drive shaft enabling the motor and mounting assembly to drive the pump assembly when energized;
- at least one bearing assembly for radially supporting the drive shaft, the at least one bearing assembly including:
- a bearing housing;
- a bearing disposed in the bearing housing, the bearing having inner and outer surfaces, the inner surface for lubricated contact with the drive shaft of the pump, the outer surface for coolant contact with cooling liquid;
- seals disposed in the housing, for preventing entry of liquid in a space defined between the inner surface of the bearing and the drive shaft of the pump and for retaining a lubricant in the space;
- and
- at least one water jacket disposed about a portion of the outer surface of the bearing, the water jacket for circulating cooling liquid that contacts the outer surface of the bearing and carries away heat conducted through the bearing due to rotation of the drive shaft during operation of the pump.
Dependencies are inferred from the claim text.