US 11,938,431 B2
Turbomachine centrifugal breather component and method for manufacturing said component
Arnaud Nifenecker, Moissy-Cramayel (FR); Benjamin Fulleringer, Moissy-Cramayel (FR); Cédric Lempegnat, Moissy-Cramayel (FR); Samuel Jousselin, Moissy-Cramayel (FR); Pierre Gaymu, Moissy-Cramayel (FR); Cédric Georget, Moissy-Cramayel (FR); Rémi Lanquetin, Moissy-Cramayel (FR); and Philippe Olharan, Moissy-Cramayel (FR)
Assigned to SAFRAN HELICOPTER ENGINES, Bordes (FR)
Appl. No. 16/648,189
Filed by SAFRAN HELICOPTER ENGINES, Bordes (FR)
PCT Filed Sep. 24, 2018, PCT No. PCT/EP2018/075741
§ 371(c)(1), (2) Date Mar. 17, 2020,
PCT Pub. No. WO2019/063458, PCT Pub. Date Apr. 4, 2019.
Claims priority of application No. 1758909 (FR), filed on Sep. 26, 2017.
Prior Publication US 2020/0222841 A1, Jul. 16, 2020
Int. Cl. B01D 45/14 (2006.01); B01D 46/00 (2022.01); F01D 25/18 (2006.01); F02C 7/06 (2006.01); F16N 39/00 (2006.01)
CPC B01D 45/14 (2013.01) [F01D 25/18 (2013.01); F16N 39/002 (2013.01); B01D 46/0056 (2013.01); F02C 7/06 (2013.01); F05D 2260/602 (2013.01); F05D 2260/98 (2013.01); F16N 2210/02 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A component for a turbomachine centrifugal deaerator of an air/oil mixture, configured to rotate around a symmetrical axis (X), the component comprising a structural part configured to delimit a duct for a flow of the air/oil mixture and at least one cellular structure configured to filter oil while allowing air to pass, the structural part comprising:
at least one annular axial inlet configured to receive the air/oil mixture;
an annular internal radial outlet closer to the symmetrical axis (X) than the at least one annular axial inlet and the annular internal radial outlet is configured to evacuate oil-free air;
a circumferential centrifugation enclosure extending axially between a first end communicating with the at least one annular axial inlet and a second end communicating with the annular internal radial outlet, the circumferential centrifugation enclosure comprising an annular radially outer wall; and
at least one radial oil outlet arranged in the annular radially outer wall and configured to evacuate oil separated from the air/oil mixture by centrifugation outwards from the turbomachine centrifugal deaerator;
wherein at least one space in the duct is occupied by the at least one cellular structure and which closes communication between the at least one annular axial inlet and the annular internal radial outlet,
wherein a free annular space extends around the symmetrical axis (X) and axially into the circumferential centrifugation enclosure between the at least one annular axial inlet and the at least one space occupied by the at least one cellular structure, wherein the free annular space is without the at least one cellular structure and opened directly into the at least one annular axial inlet,
wherein said annular radially outer wall extends around both the at least one annular axial inlet, the free annular space without the at least one cellular structure and the at least one space occupied by the at least one cellular structure, and
wherein the structural part and the at least one cellular structure are formed integrally.