Centrifugal fan

Details Centrifugal fan Centrifugal fan

1981-05-22

1983-01-18

Coe, Philip R.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

415171, F04D 2700

Patent

active

043690173

ABSTRACT:
The centrifugal fan includes a housing of a substantially cylindrical shape having lateral walls and provided with an inlet port located at one of the lateral walls. An impeller is supported for rotation within the housing in the area of the second lateral wall opposite to the aforementioned one wall. The centrifugal fan is provided with a partition formed as a plurality of annular telescopically engaged elements or bellows. The partition subdividing the interior of the housing into a main diffusing chamber in the area of the impeller and a diffusing antechamber in the area of the inlet port is axially displaced by control arms to thus vary the area of communication between those two chambers.

REFERENCES:
patent: 2459815 (1914-12-01), Hammell
patent: 4244685 (1981-01-01), Lantinen
patent: 4265592 (1981-05-01), Carlini

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