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:
Aug. 02, 2022
Filed:
Mar. 07, 2018
Safran Helicopter Engines, Bordes, FR;
Jean-Pierre Pajard, Moissy-Cramayel, FR;
Yannick Cazaux, Moissy-Cramayel, FR;
Benjamin Fulleringer, Moissy-Cramayel, FR;
SAFRAN HELICOPTER ENGINES, Bordes, FR;
Abstract
The invention relates to a centrifugal deaerator for an air/oil mixture of a turbomachine, comprising: an annular housing () for the centrifugal separation of said mixture, arranged around a hollow shaft (); axial inlets () for the flow of said air/oil mixture into said housing (); a pinion () for rotating said housing (); and radial oil outlets () and oil-free air outlets (), characterised in that it comprises a metal foam () housed in said housing () by partially extending along the axial direction (XX') so as to define two successive spaces, a foam-free space () and a foam-lined space (), said foam-free space opening up towards said axial inlets. A device can be advantageously added to the hollow shaft in order to reduce the free-vortex phenomenon and to thereby significantly reduce the load losses of the deaerator.