Adjustable wear ring for a centrifugal pump

Details Adjustable wear ring for a centrifugal pump Adjustable wear ring for a centrifugal pump

1978-05-15

1980-06-17

Vrablik, John J.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

415171, 744248R, F04D 2908, F16H 108

Patent

active

042081661

ABSTRACT:
An adjustable wear ring between a pump impeller and the pump casing is provided which is rotatable relative to the casing for effecting an adjustment of the wear ring with respect to the impeller to restrict leakage between the high pressure and low pressure chambers of the pump. Spiral groove formed on the periphery of the wear ring right engage with an action pin extending radially from the casing bore to effect controlled axial movement of the wear ring. A pin is inserted through the wear ring to engage the bore of the casing to lock the wear ring in adjusted position.

REFERENCES:
patent: 1114238 (1914-10-01), Doble
patent: 3460843 (1969-08-01), Jaeger
patent: 3798984 (1974-03-01), McMinn
patent: 4037985 (1977-07-01), Karassik et al.
patent: 4131386 (1978-12-01), Mabe, Jr.

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