公开(公告)号：US11105212B2

公开(公告)日：2021-08-31

申请号：US16260537

申请日：2019-01-29

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Michael Ryan Wedig ,  Jeffrey D Harrison ,  Mark C Morris ,  Raymond Gage

IPC: F01D9/04 ,  F01D25/12 ,  F02C7/18 ,  F02K3/06 ,  B33Y10/00 ,  B33Y80/00

Abstract: Disclosed is a tangential on-board injector (TOBI) system that includes an annulus and a plurality of cooling airflow passages disposed about the annulus. Each cooling airflow passage of the plurality of cooling airflow passages includes an inlet opening having a polygonal inlet cross-section, the inlet opening having an inlet cross-sectional area. Each cooling airflow passage of the plurality of cooling airflow passages further includes an outlet opening having an outlet cross-section and an outlet cross-sectional area. The inlet cross-sectional area is greater in magnitude than the outlet cross-sectional area. Also disclosed are additive manufacturing methods for manufacturing the tangential on-board injector system and gas turbine engines that incorporate the tangential on-board injector system.