The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 1984
Filed:
Jun. 25, 1982
Applicant:
Inventor:
Alexandre Forestier, Vaux le Penil, FR;
Assignee:
S.N.E.C.M.A., Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
4162 / ; 416500 ;
Abstract
A device is disclosed for vibration damping, especially in fans of turbojets. The root engaged inside a rotor support disk slot is kept against the upper walls of the slot under the exertion of pressure acting on the lower side of the blade root due to the present device. The device includes a torsion bar which is placed beneath the root of the blade and of which one of the ends is attached to a cam resting against the base of the root of the blade. The other end of the torsion bar is provided with a cam inserted on said bar against the base of the root of the blade under stress that was previously conveyed to the bar.