Centrifugal impeller with simplified manufacture

Details Centrifugal impeller with simplified manufacture Centrifugal impeller with simplified manufacture

1995-12-01

1996-12-31

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

416186A, 416188, 29453, 2988921, F04D 2928

Patent

active

055888038

ABSTRACT:
A centrifugal blower impeller has wide, backwardly inclined blades of the type that require the addition of a locking ring in order to stiffen and stabilize the blade tips. The blade tips and locking ring incorporate special notches and interfitting channels that allow the locking ring to be simply pushed down and onto the blade tips, self retaining without the necessity of any extra assembly steps like staking or welding. The side edges of the blade tip notches wedge against the walls of the channels if the blade tip attempts to bend in either direction.

REFERENCES:
patent: 4569632 (1986-02-01), Gray, III
patent: 4900228 (1990-02-01), Yapp
patent: 4917572 (1990-04-01), Van Houten
patent: 4946348 (1990-08-01), Yapp
patent: 4971520 (1990-11-01), Van Houten
patent: 5328332 (1994-07-01), Chiang

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