Fluid reaction surfaces (i.e. – impellers) – Perimetric blading extending axially between annular members
Patent
1993-01-15
1993-12-14
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Perimetric blading extending axially between annular members
416187, 416204R, B63H 126
Patent
active
052696553
ABSTRACT:
A centrifugal fan assembly consisting of a number of centrifugal fan units. Each of the centrifugal fan units comprises (a) an annular member with a first side and a second side, (b) a number of blades integrating with and extending from said first side, (c) a number of grooves formed in said second side of said annular member, (d) a first device for guiding said blades formed on one centrifugal fan unit to enter in said grooves formed in another centrifugal fan unit even if there is a slight circumferential misalignment of said blades formed on one centrifugal fan unit between said grooves formed in another centrifugal fan unit and (e) a second device for guiding said blades formed on one centrifugal fan unit to enter in said grooves formed in another centrifugal fan unit even if there is a slight radial misalignment of said blades formed on one centrifugal fan unit between said grooves formed in another centrifugal fan unit.
REFERENCES:
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patent: 3385511 (1968-05-01), Wentling
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patent: 4436484 (1984-03-01), Temple et al.
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