Centrifugal pump

Details Centrifugal pump Centrifugal pump

1990-07-16

1992-02-25

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Pump outlet or casing portion expands in downstream direction

4152141, 4152245, 403337, 417423012, 417423014, F01D 100, F01D 900

Patent

active

050908685

ABSTRACT:
This invention relates to a centrifugal pump, bearing housing, diffuser ring, and volute housing fastening arrangement in which a plurality of containment pump bolts pass through, in one direction, corresponding openings in the bearing housing, the diffuser ring, and the volute housing, whereas gear box mounting bolts pass through in an opposite direction corresponding openings in the bearing housing, the diffuser ring, and the volute housing. The mounting bolts are secured in a portion of a gear box. The mounting bolts therefore provide a function of providing pressure containment for the pump in the event that a containment pump bolt or fastener is missing or ineffective, in which case a load carried by a missing pump bolt is carried by a nearby mounting bolt. The containment pump bolts, having bolt heads adjacent the gear box, to prevent inadvertent torquing during routine maintenance.

REFERENCES:
patent: 1819485 (1931-08-01), Sedlmeier
patent: 2084863 (1937-06-01), Moss
patent: 2753702 (1956-07-01), Dunn
patent: 4022541 (1977-05-01), Perrieo et al.
patent: 4181466 (1980-01-01), Owen
patent: 4302150 (1981-11-01), Wieland

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