Variable inlet fan assembly

Details Variable inlet fan assembly Variable inlet fan assembly

1986-04-28

1987-07-21

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

415DIG1, F04D 2946, F04D 2968

Patent

active

046815090

ABSTRACT:
A variable inlet vane assembly for use with force draft and induction draft systems having a fan. The vane assembly comprises a mounting base and a hub supported in spaced relationship by a plurality of supports. The inlet vanes are pivotally supported between the base and the hub and are engaged by an actuating ring. An annular sliding bearing is interposed between the actuating ring and the hub. A plurality of stationary dorsal vanes are mounted downstream and in close relationship to the main vanes to control violent back eddies of air which occur at low vane closures.

REFERENCES:
patent: 2650752 (1953-09-01), Hoadley
patent: 2797044 (1957-06-01), Lovesey
patent: 3039736 (1962-06-01), Pon
patent: 3583827 (1971-06-01), Wood
patent: 4013377 (1977-03-01), Amos
patent: 4208167 (1980-06-01), Yasugahira et al.
patent: 4239450 (1980-12-01), Geitner et al.
patent: 4299535 (1981-11-01), Brockman et al.
patent: 4378960 (1983-04-01), Lenz

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