Fan rotor blades of turbofan engines

Details Fan rotor blades of turbofan engines Fan rotor blades of turbofan engines

1979-11-30

1986-11-11

Freeh, William L.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416223A, F01D 530

Patent

active

046219790

ABSTRACT:
The present invention provides improvements to fan rotor blades of turbofan gas turbine engines. Increased low cycle fatigue life is sought, and a specific object is to obtain a more nearly uniform chordwise distribution of maximum stress levels across the root sections of fan blades.
In one effective embodiment incorporating concepts of the present invention the root section of a fan blade is contoured to an arcuate geometry which approximates the contour of the airfoil cross section at the inner wall of the working medium flowpath. Further contour specifications for reducing local stress levels are discussed.

REFERENCES:
patent: 1041269 (1912-10-01), Guyor
patent: 1719415 (1929-07-01), Back
patent: 1793468 (1931-02-01), Donsmore
patent: 3986793 (1976-10-01), Warner

Affiliated with

Also associated with

Rating

Fan rotor blades of turbofan engines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fan rotor blades of turbofan engines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fan rotor blades of turbofan engines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-374881