Apparatus for axial adjustment of chopper pump clearances

Details Apparatus for axial adjustment of chopper pump clearances Apparatus for axial adjustment of chopper pump clearances

2007-01-30

2007-01-30

Edgar, Richard A. (Department: 3745)

Rotary kinetic fluid motors or pumps

With cutter or comminutor for debris in working fluid

C415S131000, C415S132000

Reexamination Certificate

active

10894731

ABSTRACT:
Axial adjustment apparatus is provided in a centrifugal pump to effect adjustment of the impeller relative to adjacent pump elements. Specifically preferred is adjustment apparatus in a chopper pump that provides adjustment of the impeller relative to a chopper plate to facilitate continuous efficient cutting of solids by the pump. The adjustment apparatus may also include adjustment structure for providing axial adjustment between the impeller and a plate-like member positioned adjacent the drive side of the impeller to effect adjustment of cutting tolerances in cutting elements positioned between the impeller and plate-like member. The invention further includes a seal mechanism configured and positioned to retain the seal height of the seals throughout continuous adjustment of the impeller.

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