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:
Feb. 16, 2010
Filed:
Jan. 24, 2008
Jacques Michel Albert Julliard, Hericy, FR;
Olivier Michael Molinari, Avon, FR;
Patrick Charles Georges Morel, Chartrettes, FR;
Georges Jean Xavier Riou, Melun, FR;
Jacques Michel Albert Julliard, Hericy, FR;
Olivier Michael Molinari, Avon, FR;
Patrick Charles Georges Morel, Chartrettes, FR;
Georges Jean Xavier Riou, Melun, FR;
SNECMA, Paris, FR;
Abstract
The present invention relates to a structural or non-structural turbojet engine fan casing connecting arm that also acts as a flow straightener downstream of the fan rotor. Its distinctive feature is that it is constructed to form an acoustic attenuator. In particular, it comprises a closed cavity and perforations on one of the faces so as to form a Helmholtz resonator. The arm forms part of the intermediate casing.