Sawtoothed diffuser, vaned, for centrifugal compressors

Details Sawtoothed diffuser, vaned, for centrifugal compressors Sawtoothed diffuser, vaned, for centrifugal compressors

1977-07-14

1978-07-11

Casaregola, Louis J.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Pump outlet or casing portion expands in downstream direction

415211, F01D 102, F01D 900

Patent

active

040998916

ABSTRACT:
This invention is proposed as an aerodynamically more efficient vaned diffuser for centrifugal compressors than heretofore achieved, while still respecting the usual diffuser requirement of a limited overall diameter. The invention is so to shape the early entering portion of the diffuser side-walls and the vanes as to achieve for the first time, isobars across the so-called throat which are highly oblique to the flow direction there, instead of heretofore always an isobar which is very nearly normal or normal across the passage at that throat. This is more understandably but still briefly explained in the two sections following, on Background, and Summary, of the Invention.

REFERENCES:
patent: 3150823 (1964-09-01), Adams
patent: 3765792 (1973-10-01), Exley
patent: 3778186 (1973-12-01), Bandukwalla

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