Motor pump bearing
AssigneeAquaMotion, Inc.
InventorsBenno Lebkuchner, Hans L. Kuster
Life of this patent
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Abstract
A bearing that is used in a motor pump in which a liquid is, not only pumped by means of an impeller driven by the pump, but also is used to lubricate components of the motor pump including the motor pump shaft. The bearing is for supporting the shaft at at least one location of the shaft. The bearing is constructed of a bronze material having added thereto a small amount of graphite, preferably around 2.5%.
Claims26
A combination of a motor pump and a bearing that is used in a the motor pump, said motor pump including a pump housing, a motor housing, a ceramic pump shaft carrying an impeller, said ceramic shaft supported in the motor housing with the impeller extending into the pump housing, in which water is not only pumped by means of the impeller but also is used to lubricate components of the motor pump including the ceramic pump shaft, the bearing for supporting the shaft at at least one location of the shaft, and the bearing constructed of a bronze material having added thereto a small amount of graphite, wherein the small amount of graphite is in a range of 1% to 10% of the total material comprising the bearing.
(canceled)
9-26. (canceled)
Dependencies are inferred from the claim text.