Centrifugal blower with axial clearance

Details Centrifugal blower with axial clearance Centrifugal blower with axial clearance

1988-05-23

1990-04-17

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having tangential inlet or outlet

4151212, 4151721, 4151745, F04D 100

Patent

active

049175726

ABSTRACT:
A centrifugal blower with rearwardly curved impeller blades positioned in a housing between two housing faces that are spaced apart along the impeller axis. One of the housing faces defines a housing inlet. The housing is substantially closed off with the exception of the inlet and an outlet. The blower is generally characterized in that the: (a) clearance between the impeller blades and at least one of the housing faces is greater than 30% of the impeller blade depth; (b) the impeller diameter is at least 70% of the housing dimension along that diameter; and (c) area of the blower outlet is greater than 70% of the area of a section of the housing taken perpendicular to the direction of airflow along the impeller axis.

REFERENCES:
patent: 1787656 (1931-01-01), Anderson
patent: 3597117 (1971-08-01), Zochfeld
patent: 3627440 (1971-12-01), Wood
patent: 3829250 (1974-08-01), Samson
patent: 3967874 (1976-07-01), Calabro
patent: 4086886 (1988-05-01), Edmainer
patent: 4269571 (1981-05-01), Shikatani
patent: 4432694 (1984-02-01), Kuroda et al.
patent: 4526506 (1985-07-01), Koger
patent: 4549848 (1985-10-01), Wallman
patent: 4647271 (1987-03-01), Nagai et al.
patent: 4662830 (1987-05-01), Pottebaum
patent: 4781526 (1988-11-01), Mead

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