Light weight fan assembly

Details Light weight fan assembly Light weight fan assembly

1978-10-06

1980-11-11

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

416195, 416218, 416230R, 416241A, F04D 2934

Patent

active

042329965

ABSTRACT:
A fan for use as a front fan or in the lift fan system with aircraft jet engines having blades supported by a segmented hub platform and a segmented tip platform which are supported by hub support hoops and tip support hoops. The blades are secured to the hub platform segments and tip platform segments by composite pre-preg pin stock which is inserted in holes in the tip platform, the hub platform and fan blades. The pins are placed under axial compression to expand the pin diameter to provide a precise fit. Channel members are provided between the tip hoops and the blades. Some of the channels have extensions which form seals.

REFERENCES:
patent: 3556675 (1971-01-01), Howald et al.
patent: 3601500 (1971-08-01), Palfreyman
patent: 3737250 (1973-06-01), Pilpel et al.
patent: 3754839 (1973-08-01), Bodman
patent: 3765796 (1973-10-01), Stargardter et al.
patent: 3849023 (1974-11-01), Klompas
patent: 4017209 (1977-04-01), Bodman

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