High strength fan

Details High strength fan High strength fan

1984-08-06

1986-02-11

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

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

Axially extending shroud ring or casing

416238, 416DIG2, 416169A, F04D 2938

Patent

active

045696314

ABSTRACT:
A fan in which the root-to-tip net blade skew angle (A.sub.b) (either forward or rearward) is less than 1/2 of the blade spacing; in a first radially inward region of the blade, the blade is rearwardly skewed as indicated by the leading edge skew angle (A.sub.e); in a second region radially outward of the first region, the leading edge skew angle indicates a forward skew.

REFERENCES:
patent: 102399 (1870-04-01), Hirsch
patent: 1518501 (1924-12-01), Gill
patent: 1542853 (1925-06-01), Callahan
patent: 1808032 (1931-06-01), Gebers
patent: 1991095 (1935-02-01), Hochstetter
patent: 2043736 (1936-06-01), Charavay
patent: 2212041 (1940-08-01), Pfautsch
patent: 2754919 (1956-07-01), Blue
patent: 3826591 (1974-07-01), Wilson
patent: 3972646 (1976-08-01), Brown et al.
patent: 4358245 (1982-11-01), Gray
patent: 4459087 (1984-07-01), Barge
patent: 4505641 (1985-03-01), Tsuchikawa et al.

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