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:
Sep. 24, 2013
Filed:
Mar. 01, 2010
Charles Marciquet, Irreville, FR;
Laurent Collongeat, Vernon, FR;
Philippe Bourdin, Saint Just, FR;
Patrice Fonteyn, Vernon, FR;
Charles Marciquet, Irreville, FR;
Laurent Collongeat, Vernon, FR;
Philippe Bourdin, Saint Just, FR;
Patrice Fonteyn, Vernon, FR;
Snecma, Paris, FR;
Abstract
In a disengageable axial abutment for a rotary machine fitted with fluid bearings, an outer ring () comprises first and second outer half-rings (A,B) centered in the casing () by a flexible suspension system, with the outer half-rings (A,B) being held in the axial direction between a static abutment member () and a pre-loading system () exerting a predetermined axial force such that, so long as the axial load exerted on the axial abutment via a synchronization cone () is greater than a given threshold, each rolling element () presents a single line () of two points of contact (A,B) with an inner ring () and with the first outer half-ring (A) respectively, and the inner ring () is driven in rotation by the synchronization cone (), whereas, when the axial load exerted on the axial bearing becomes smaller, a gap () is created between the outer half-rings (A,B) and a second line () of two additional points of contact (A,B) is created between each rolling element () and the inner ring () and the second outer half-ring (B) respectively, such that the axial abutment is disengaged.