US 12,228,245 B2
Device for detecting leaks in an aircraft engine lubricating oil circuit
Thibault Maxime Adrien Mallet, Moissy-Cramayel (FR); and Nicolas Andrea Fabbro, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 18/572,031
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Jun. 14, 2022, PCT No. PCT/FR2022/051145
§ 371(c)(1), (2) Date Dec. 19, 2023,
PCT Pub. No. WO2022/269165, PCT Pub. Date Dec. 29, 2022.
Claims priority of application No. 2106584 (FR), filed on Jun. 21, 2021.
Prior Publication US 2024/0288117 A1, Aug. 29, 2024
Int. Cl. F16N 29/00 (2006.01); F02C 7/14 (2006.01); F02C 7/16 (2006.01); F28F 27/00 (2006.01)
CPC F16N 29/00 (2013.01) [F02C 7/14 (2013.01); F02C 7/16 (2013.01); F28F 27/00 (2013.01); F05D 2260/80 (2013.01); F05D 2260/98 (2013.01); F16N 2210/08 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A device for detecting leaks in a lubricating oil circuit of an aircraft engine between at least two points of the circuit, the device comprising a piston formed by a plurality of plates stepped over a movable rod which connects said plates, a plurality of fixed chambers in which the plates slide respectively by splitting each of them into two separate compartments, two calibrated ports located respectively at two distinct positions of the circuit, the two compartments of each of the chambers being respectively connected to the circuit by two respective and distinct connecting conduits leading to the circuit on either side of a calibrated port, the device further comprising a sensor (29) for detecting the position or movement of the piston.