Module for attracting and detecting debris
AssigneeSafran Aero Boosters SA
InventorsNicolas Oscar Louis Ghislain Raimarckers, Aurélien Guy Edmond Raoul Meunier, Samuel Jottrand
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Abstract
Module (60) for attracting and detecting ferromagnetic debris in an oil flow from a turbomachine, the module (60) comprising: a permanent magnet (62); a bar (64), the bottom (66) of which extends radially and is wound around a coil (70). The coil (70) is able to detect the magnetic field generated by the magnet (62) and in particular its variations when a ferromagnetic particle comes into the vicinity of the magnet (62).
Claims13
A module for attracting and detecting ferromagnetic debris in an oil flow of a turbomachine, the module comprising:
- a permanent magnet of a cylindrical shape;
- a ferromagnetic bar comprising a foot rising radially from the magnet and a cap extending circumferentially from, or perpendicular to the foot;
- and
- a coil wound around the foot;
- wherein the cap comprises two ends circumferentially opposite and each formed of a cylinder portion.
A system for detecting ferromagnetic debris in an oil flow of a turbomachine, the system comprising a passage intended to be traversed by the flow and a module for attracting and detecting the ferromagnetic debris present in the flow, wherein the module comprising:
- a permanent magnet of a cylindrical shape;
- a ferromagnetic bar comprising a foot rising radially from the magnet and a cap extending circumferentially from, or perpendicular to the foot;
- and
- a coil wound around the foot;
- wherein the cap comprises two ends circumferentially opposite and each formed of a cylinder portion.
An aircraft turbojet engine comprising a lubrication group made of a one-piece body receiving a plurality of pumps and filters, and a plurality of oil inlets and outlets, and a system for detecting debris, wherein the system for detecting debris comprising a passage intended to be traversed by the flow and a module for attracting and detecting the ferromagnetic debris present in the flow, wherein the module comprising:
- a permanent magnet of a cylindrical shape;
- a ferromagnetic bar comprising a foot rising radially from the magnet and a cap extending circumferentially from, or perpendicular to the foot;
- and
- a coil wound around the foot;
- wherein the cap comprises two ends circumferentially opposite and each formed of a cylinder portion;
- and
- wherein said system for detecting debris is arranged in one of the oil inlets upstream of the pumps and filters.
Dependencies are inferred from the claim text.