公开(公告)号：US11982189B2

公开(公告)日：2024-05-14

申请号：US17339604

申请日：2021-06-04

申请人： Raytheon Technologies Corporation

发明人： Patrick D. Couture ,  Norman Cleesattel

IPC分类号： F01D11/20 ,  F02C9/00

CPC分类号： F01D11/20 ,  F02C9/00 ,  F05D2220/32 ,  F05D2270/01

摘要： According to an aspect, a gas turbine engine includes a turbine section with a turbine case and a plurality of turbine blades within the turbine case. The gas turbine engine also includes an active clearance control system with an active clearance control cooling air supply, a valve pneumatically coupled to the active clearance control cooling air supply, and a controller. The controller is configured to determine an active cooling control schedule adjustment based on a condition of the gas turbine engine, operate the active clearance control system according to an active cooling control schedule as modified by the active cooling control schedule adjustment, apply a decay function to the active cooling control schedule adjustment to reduce an effect on the active cooling control schedule adjustment, and resume operating the active clearance control system according to the active cooling control schedule based on an active cooling control condition being met.

公开(公告)号：US20220389828A1

公开(公告)日：2022-12-08

申请号：US17339604

申请日：2021-06-04

申请人： Raytheon Technologies Corporation

发明人： Patrick D. Couture ,  Norman Cleesattel

IPC分类号： F01D11/20 ,  F02C9/00

摘要： According to an aspect, a gas turbine engine includes a turbine section with a turbine case and a plurality of turbine blades within the turbine case. The gas turbine engine also includes an active clearance control system with an active clearance control cooling air supply, a valve pneumatically coupled to the active clearance control cooling air supply, and a controller. The controller is configured to determine an active cooling control schedule adjustment based on a condition of the gas turbine engine, operate the active clearance control system according to an active cooling control schedule as modified by the active cooling control schedule adjustment, apply a decay function to the active cooling control schedule adjustment to reduce an effect on the active cooling control schedule adjustment, and resume operating the active clearance control system according to the active cooling control schedule based on an active cooling control condition being met.