AIRCRAFT SYSTEMS AND METHODS
    1.
    发明公开

    公开(公告)号:EP3521171A1

    公开(公告)日:2019-08-07

    申请号:EP19152879.3

    申请日:2019-01-21

    摘要: A system includes plural airfoils 302 operably coupled with a rotatable member 222 of an aircraft engine system 102. The rotatable member 222 is configured to rotate about an axial centerline 314 of the aircraft engine system 102. The system comprises a feature 342 at one or more exterior locations of an aircraft body 13. The feature 342 is shaped to alter a flow of air between the aircraft body 13 and the airfoils 302. Altering the flow of air also one or more of reduces a local load on the airfoils 302, reduces a local angle of attack 804 of the airfoils 302, or reduces a noise level that is generated by the aircraft engine system 102 as the rotatable member 222 rotates about the axial centerline 314 of the aircraft engine system 102 relative to the aircraft body 13 not including the feature 342.