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:
Jan. 09, 2024
Filed:
May. 18, 2020
Safran Aircraft Engines, Paris, FR;
Loic Pora, Moissy-Cramayel, FR;
Huguette De Wergifosse, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
The invention relates to a system () for lubricating an aeronautical engine () and a reduction gearbox () associated with the engine (), the system () comprising an oil reservoir () feeding at least one first supply pump () supplying a first circuit () of the gearbox () opening into at least one chamber () of the gearbox () and, in parallel, a second circuit () of the engine () opening into chambers () of the engine (). The second circuit () comprises a jet pump () of variable cross section supplied at least by the first supply pump (), bypassing the first circuit (), a second driven supply pump () being integrated into the second circuit () downstream of the jet pump (), a portion of a flow (Qp) in the first circuit () being drawn off by the jet pump () to supply the second circuit ().