Axial fan

Details Axial fan Axial fan

1984-10-11

1986-12-23

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

Power or manual actuator on non-rotatable part

416147, 416205, F04D 2936

Patent

active

046309993

ABSTRACT:
An axial flow fan with adjustable blades 18 has a spindle 16 for each blade mounted in a hub rim 12. Each spindle has associated therewith a replaceable cartridge 58 having a thrust bearing 70 therein and spaced radial bearings 64, 70. In order to service the bearing, the cartridge can simply be disconnected, e.g. by unscrewing from the rim having removed the blade 18.

REFERENCES:
patent: 1927592 (1933-09-01), Lambert
patent: 2080540 (1937-05-01), Isaac
patent: 2685933 (1954-08-01), Terzi
patent: 2844303 (1958-07-01), Kristiansen

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