Centrifugal fan for circulating room air

Details Centrifugal fan for circulating room air Centrifugal fan for circulating room air

1976-04-21

1977-12-06

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Diverse impellers or working members

416178, F04D 2928

Patent

active

040614417

ABSTRACT:
A centrifugal fan for circulating room air characterized by an impeller supported for unidirectional rotation about a vertical axis. The fan includes a circular array of vertically oriented, radially extended blades, each blade being at its ends to a pair of end plates and characterized by a leading surface of a substantially flute-like configuration defining a forwardly opening compression chamber extended along the length thereof and communicating with apertures extended radially into the end plates, between the ends of adjacent blades defining openings for accommodating vertical streams of air flowing between the blades.

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patent: 2962207 (1960-11-01), Mayne
patent: 3201032 (1965-08-01), Gelbardd
patent: 3368744 (1968-02-01), Jenn

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