Elbow casing for fluid flow machines

Details Elbow casing for fluid flow machines Elbow casing for fluid flow machines

1987-08-18

1989-05-09

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

4152245, F04D 2942

Patent

active

048284572

ABSTRACT:
A casing which admits the fluid medium into the range of the impeller or first impeller in a fluid flow machine, particularly in a centrifugal pump, is made of several sections which have abutting surfaces. At least one such surface has a recess forming part of a fluid flow passage, and the recess is machined into the respective surface by a material removing tool. This simplifies the making of the casing and enables the latter to optimally conform to the conditions of flow between the supply conduit and the impeller or first impeller of the machine to thus reduce noise and stray movements and enhance the efficiency of the machine.

REFERENCES:
patent: 1291602 (1919-01-01), Murray
patent: 1310130 (1919-07-01), Murray, Jr.
patent: 2671406 (1954-03-01), Waller
patent: 3339490 (1967-09-01), Glass
patent: 3411451 (1968-11-01), Matthias et al.
patent: 3421446 (1969-01-01), Strscheletzky et al.
patent: 3560105 (1971-02-01), Clifford
patent: 3735782 (1973-05-01), Strscheletzky
patent: 4101243 (1978-07-01), Tatkov et al.

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