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:
Nov. 11, 2014
Filed:
Dec. 15, 2008
Albert Cornet, Verviers, BE;
Nicolas Raimarckers, Tourinne, BE;
Bernard Simeon, Libramont, BE;
Techspace Aero S.A., Milmort, BE;
Abstract
The present invention relates to an installation for lubricating and/or cooling in an aircraft engine comprising an oil tank (), a main feed pipe () feeding a main pump () supplying a flow in a discharge line from the main pump () to one or several systems () to be lubricated and/or cooled, wherein the installation comprises a feed pipe for an auxiliary pump () fitted in parallel onto the main pipe () and connected to an auxiliary feed pump (A), the latter supplying a flow in a discharge line from the auxiliary pump (A) connected by a three-way circuit on the one hand to a non-return valve (A) directed towards the main discharge line (), and on the other hand to a hydraulically-operated () recirculation valve (), in order to divert the flow from the auxiliary feed pump (A) into a return line (B) directly towards the tank ().