Method and system for intermittent lubrication and / or cooling of a rotorcraft power transmission gearbox

Abstract

The present invention relates to a fluidic system (10) having a backup system (30) comprising at least one spray branch (50) containing a backup sprayer (51) adapted to direct a backup fluid (36) to a mechanical element (6) to be lubricated and / or cooled, the backup system (30) having a displacement generator (60) for setting said backup fluid (36) in motion. Said at least one spray branch (50) comprises at least one regulated branch (70); the backup system (30) having a controller (90) configured to control at least one control element (80) to control discontinuous operation of the regulated branch (70) according to a predetermined cycle, either continuously or based on at least one predetermined criterion when the backup system (30) is activated; the regulated branch (70) intermittently expelling said backup fluid (36) during said cycle. (Shorthand figure: Figure 1)

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