Accession Number : ADD007979

Title :   Light Weight Fan Assembly.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Stoffer,Lewis J

Report Date : 11 Nov 1980

Pagination or Media Count : 8

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. (Author)

Descriptors :   *Patents, *Lift fans, *Jet engines, *Filament wound construction, *Compression molding, Fan blades, Fabrication, Lightweight, High strength, Low costs, Hubs, Platforms, Segmented, Inventions

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE