F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
103/119
F04D 21/00 (2006.01)
Patent
CA 1063874
ABSTRACT OF THE DISCLOSURE A preassembled unit or inner cartridge for a multi- stage barrel type centrifugal pump including, bearings, seals, balancing device, impellers and diffusers is aligned, balanced and pressed together into assembled position by a resilient means for stressing the parts against a pair of spaced handling clamps at opposite ends of the preassembled unit which permits the shaft to act as an elongated tie-bolt to hold the preassembled unit or cartridge so that it can be installed or removed easily from the fixed outer casing of the multi-stage barrel type centrifugal pump. The unit or cartridge is preassembled and aligned in a special supporting frame which duplicates the engagement shoulder and end face for the inner cartridge on the pump casing so that all adjustments can be made easily and precisely at a point away from the pump. A movable fixture can also be provided and posi- tioned so as to permit the aligned, adjusted and preassembled unit or cartridge to be installed, removed or reinstalled in the fixed outer casing for the multi-stage barrel type centrifugal pump.
326667
Bush Austin R.
Ferrarese Frank L.
Krutzsch William C.
LandOfFree
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