Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Having wear liner – sheathing or insert
Patent
1975-07-17
1977-02-08
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Having wear liner, sheathing or insert
416230, F01D 528
Patent
active
040069990
ABSTRACT:
A laminated filament composite structure, such as an airfoil for use in an environment in which it is subjected to both foreign object impact and bending is provided with improved leading edge protection. At least one fine wire mesh layer is partially bonded within the composite structure along its neutral bending axis. A portion of the wire mesh layer extends beyond the neutral bending axis and partially around the leading edge where it is bonded to the outer periphery of the primary composite structure. The wire mesh is clad with a metal such as nickel to provide an improved leading edge protective device which is firmly anchored within the composite structure. The neutral bending axis anchoring tends to retain the leading edge protective device intact even after the delamination of the composite structure. Also described is a novel method of constructing a composite airfoil so as to further minimize the possibility of losing the leading edge protective device due to delamination caused by impact and bending.
REFERENCES:
patent: 1674674 (1928-06-01), Wooster
patent: 2644296 (1953-07-01), Sanz et al.
patent: 3294366 (1966-12-01), Coplin
patent: 3600103 (1971-08-01), Gray et al.
patent: 3701190 (1972-10-01), Stone
patent: 3758234 (1973-09-01), Goodwin
patent: 3762835 (1973-10-01), Carlson et al.
patent: 3883267 (1975-05-01), Baudier et al.
Brantley James W.
Irwin Thomas P.
Lampe, Jr. Robert C.
Manning John R.
Musial Norman T.
Powell Jr. Everette A.
The United States of America as represented by the Administrator
LandOfFree
Leading edge protection for composite blades does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Leading edge protection for composite blades, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leading edge protection for composite blades will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1211096