公开(公告)号：US20210396388A1

公开(公告)日：2021-12-23

申请号：US17466999

申请日：2021-09-03

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Dominic Mongillo, JR. ,  Christopher Whitfield ,  Tracy Phropheter-Hinckley

IPC: F23R3/04 ,  F23R3/00 ,  F23R3/06 ,  F23R3/02

Abstract: A grommet may define a dilution hole in a combustor panel. The grommet may comprise a ridge having a stepped geometry formed about an inner diameter of the grommet, the ridge comprising a passage. The passage may comprise an outlet. The ridge may further comprise a fillet about the inner diameter of the grommet, wherein the outlet is configured to direct a cooling flow circumferentially along the fillet and fill the ridge with the cooling flow.