US 12,259,038 B2
Mechanical part for an aircraft turbomachine
Juan-Luis Marcos Izquierdo, Moissy-Cramayel (FR)
Assigned to SAFRAN TRANSMISSION SYSTEMS, Colombes (FR)
Filed by SAFRAN TRANSMISSION SYSTEMS, Colombes (FR)
Filed on Jun. 6, 2022, as Appl. No. 17/832,899.
Claims priority of application No. 2105968 (FR), filed on Jun. 7, 2021.
Prior Publication US 2022/0390005 A1, Dec. 8, 2022
Int. Cl. F16H 57/04 (2010.01); F02C 7/36 (2006.01)
CPC F16H 57/0486 (2013.01) [F16H 57/0423 (2013.01); F16H 57/045 (2013.01); F02C 7/36 (2013.01); F05D 2260/40311 (2013.01); F05D 2300/611 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A mechanical part for an aircraft turbomachine is made of metal and comprises at least one original non-roughened curved surface configured to ensure an oil flow during operation,
wherein the part is an oil deflector or collector for a mechanical reduction gear, said original non-roughened curved surface is configured to be arranged facing a planet gear of the reduction gear,
wherein said original non-roughened curved surface:
either comprises a coating that is more hydrophobic and/or lipophobic than said original non-roughened curved surface,
or comprises a surface texturing rendering said original non-roughened curved surface more hydrophobic and/or lipophobic, and
wherein said coating covers said original non-roughened curved surface that is not roughened before coating, or said surface texturing is performed on said original non-roughened curved surface that is not roughened before texturing.