公开(公告)号：US10006372B2

公开(公告)日：2018-06-26

申请号：US14748787

申请日：2015-06-24

Applicant: ROLLS-ROYCE PLC

Inventor： Zahid M Hussain ,  Nityabh Mishra ,  Peter T Ireland

IPC: F02C7/25 ,  F01D17/10 ,  F02K3/075 ,  F02C7/042 ,  F02C9/18

CPC classification number: F02C7/25 ,  F01D17/105 ,  F02C7/042 ,  F02C9/18 ,  F02K3/075

Abstract: A ventilation inlet including a conduit (104) arranged to convey flow from a first flow zone to a second flow zone. The conduit has a mouth region (106) presenting to the first flow zone an entrance aperture to receive the flow therefrom. The conduit has a baffle (114) spanning a portion of the conduit to define a throat region (116), the throat region being narrower than the entrance aperture. The throat region (116) is movable along the conduit (104) to control the flow through the ventilation inlet.