US 11,952,925 B2
Integral centrifugal degasser
Arnaud Nifenecker, Moissy-Cramayel (FR); Frédéric Bonnet, Moissy-Cramayel (FR); Pierre Gaymu, Moissy-Cramayel (FR); Rémi Lanquetin, Moissy-Cramayel (FR); and Benjamin Fulleringer, Moissy-Cramayel (FR)
Assigned to SAFRAN HELICOPTER ENGINES, Bordes (FR)
Appl. No. 17/257,212
Filed by SAFRAN HELICOPTER ENGINES, Paris (FR)
PCT Filed Jul. 5, 2019, PCT No. PCT/FR2019/051667
§ 371(c)(1), (2) Date Dec. 30, 2020,
PCT Pub. No. WO2020/008153, PCT Pub. Date Jan. 9, 2020.
Claims priority of application No. 1856182 (FR), filed on Jul. 5, 2018.
Prior Publication US 2021/0131322 A1, May 6, 2021
Int. Cl. F01M 11/08 (2006.01); B01D 45/14 (2006.01); B04B 7/18 (2006.01); B33Y 80/00 (2015.01)
CPC F01M 11/08 (2013.01) [B01D 45/14 (2013.01); B04B 7/18 (2013.01); B33Y 80/00 (2014.12)] 11 Claims
OG exemplary drawing
 
1. A centrifugal degasser of an air/oil mixture of a turbomachine, comprising:
a hollow shaft extending along an axis X and defining an internal air circulation cavity;
a pinion configured for rotating the hollow shaft; and
an annular chamber configured for centrifugal separation of said air/oil mixture, the annular chamber being arranged around the hollow shaft and forming a fluid passage vein, the fluid passage vein comprising an inlet oriented axially for feeding the annular chamber with said air/oil mixture, and a first outlet oriented radially inwards for the exit of a de-oiled air portion separated from said air/oil mixture, the first outlet being in fluid communication with said internal air circulation cavity for discharging the de-oiled air portion to an outside of the centrifugal degasser, the annular chamber further comprising a second oil outlet oriented radially outwards and configured for discharging an oil portion separated from said air/oil mixture to the outside of the centrifugal degasser,
wherein the annular chamber and the pinion form a single piece.