Composite blade for turbofan engine fan

Details Composite blade for turbofan engine fan Composite blade for turbofan engine fan

1980-01-25

1982-08-10

Hart, Douglas

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

416229A, 416241A, 416230, F01D 530

Patent

active

043435939

ABSTRACT:
A turbofan engine fan blade made of composite material, and a method of making the fan, are taught. The fan blade essentially comprises an airfoil section having a root end and made of a plurality of bonded plies of composite material which are splayed and which are in a staggered condition at the root end; a two-piece platform section made of titanium or of aluminum, with one piece of the platform on each side of the airfoil section; and a steel outsert section which holds and secures the platform section to the airfoil section, with the outsert section having a triangular shaped cavity located at the root end of the airfoil section, between the splayed and staggered plies of the airfoil section. Among other advantages, the cavity eliminates the "insert plies" (or wedge) used in the prior art and the inherent disadvantages associated with such use.

REFERENCES:
patent: 3749518 (1973-07-01), Alver
patent: 3752600 (1973-08-01), Walsh
patent: 4019832 (1977-04-01), Salemme
patent: 4045149 (1977-08-01), Ravenhall
patent: 4047840 (1977-09-01), Ravenhall

Affiliated with

Also associated with

Rating

Composite blade for turbofan engine fan does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composite blade for turbofan engine fan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite blade for turbofan engine fan will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1529577