F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
103/114
F04D 13/08 (2006.01) F04D 13/10 (2006.01) F04D 29/04 (2006.01)
Patent
CA 1108011
Abstract of the Disclosure An articulated, submersible turbine pump for installation in a vertically elongated bottom hole assembly of a well has a flexible shaft and a plurality of rotor elements and stator elements mounted about the shaft in adjacent alternating relationship. Each rotor element has rotatable blades attached to the shaft by a hub and a housing segment surrounding the rotatable blades in outwardly spaced relationship therefrom to provide clearance for rotation. Each sator element has a close fitting hub around the shaft, which serves as a journal bearing, a housing segment outwardly spaced from the hub, and stationary blades attached between the hub and the housing segment. The housing segments are longer than the blades and the hub. Mathcing conical surfaces are formed at opposite ends of the housing segments to seal adjacent housing segments when axially aligned. An annular relief on the periphery of one of the surfaces permits the housing segments to pivot out of axial alignment when the shaft bends. Axial rotation between the housing segments is prevented by a key and a recess at opposite ends of each housing segment; the key of one seg- ment fits loosely into the recess of the adjacent segment.
295334
Erickson John W.
Petrie Harold L.
Hirons & Rogers
Kobe Inc.
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