Axial fan

Details Axial fan Axial fan

1978-05-11

1980-08-05

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific drive or transmission means

Alternating rotation

416146A, 416157R, 416168R, 416205, F04D 2936

Patent

active

042159733

ABSTRACT:
There is provided an axial fan having a fan wheel with settable blades, each blade being rotatably mounted at its root end about an axis which extends substantially radially relative to the fan wheel, and carries a setting arm which projects radially outwardly relative to the blade axis, said arm being connected via a movement-transmission arm to a setting device which is common to all said blades and which is displaceably mounted on the fan wheel for movement in the axial direction thereof to change the blade angle. The setting device is also rotatable coaxially in relation to the fan wheel, and each movement-transmission arm is rigidly connected at one end thereof to the setting device. The other end of the movement-transmission arm is mounted in the associated setting arm for both axial and universal movement.

REFERENCES:
patent: 2390068 (1945-12-01), Adams et al.
patent: 3006417 (1961-10-01), Busquet
patent: 3085631 (1963-04-01), Dagrell
patent: 3175803 (1965-03-01), Newey et al.
patent: 3790301 (1974-02-01), Pedersen et al.
patent: 3844680 (1974-10-01), Saterdal
patent: 4046486 (1977-09-01), Kolb

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