Patent ID: 11970972
Assignee: RTX CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 13:
14. A method for capturing wept oil in a bearing compartment of a gas turbine engine comprising a scupper defined about an engine longitudinal axis; a gutter section formed in the scupper, the gutter section having a drain hole; and a windage blocker in the gutter section, the method comprising:
positioning the windage blocker adjacent to, upstream of and circumferentially aligned with the drain hole forming a passage space for increasing a pressure upstream of the windage blocker and generating a vortex downstream of the windage blocker so as to create an oil re-circulation zone promoting oil drainage into the drain hole;
wherein the windage blocker extends from the wall of the clutter section to define a passage space 25%-30% a total width of the clutter section to allow a percentage of oil pass through.