Patent ID: 7168915
Filing Date: 2007-01-30
Classification: F04D

Abstract:
1. A centrifugal pump structured to provide axial adjustment of elements of the pump, comprising: a pump casing for housing a bearing assembly and for receiving at least a portion of a drive shaft through said bearing assembly, said pump casing having a front face and an end face; an impeller attached to said drive shaft and positioned outside said pump casing in proximity to said front face; a plate-like member positioned between said front face of said pump casing and said impeller; first adjustment apparatus positioned between said end face of said pump casing and said drive shaft to effect axial adjustment of said drive shaft and said impeller to distance said impeller from said front face of said pump casing; and second adjustment apparatus positioned between said front face of said pump casing and said plate-like member to effect axial adjustment of said plate-like member away from said front face of said pump casing and toward said impeller.