Centrifugal pump having a unitary one-piece diffusion casing and

Details Centrifugal pump having a unitary one-piece diffusion casing and Centrifugal pump having a unitary one-piece diffusion casing and

1990-06-04

1991-12-10

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural rigidly related blade sets

4151821, 415200, 415228, 415229, F01D 102

Patent

active

050713175

ABSTRACT:
A multiple-stage pump has a one-piece diffusion casing and a one-piece multiple turbine impeller. The casing has multiple diffusion chambers enclosing respective multiple impeller sections. The casing and the impeller have adjacently disposed surfaces at predetermined locations to form a discrete area between the surfaces to provide a dynamic bearing means.

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