公开(公告)号：US20240318603A1

公开(公告)日：2024-09-26

申请号：US18189384

申请日：2023-03-24

Applicant: Hamilton Sundstrand Corporation

Inventor： Thomas K. Jakab ,  Benjamin T. Harder

IPC: F02C7/277 ,  F01D9/04 ,  F01D17/16

CPC classification number: F02C7/277 ,  F01D9/041 ,  F01D17/16 ,  F05D2240/128 ,  F05D2260/85

Abstract: A combined air turbine starter and flow control valve includes a turbine having turbine blades and a shaft rotating with the turbine blades. The turbine is received within a nozzle housing. The nozzle housing includes an inlet. A radially outwardly extending inner surface extends from the inlet and toward the turbine blades. A flow control piston is received to be movable along a rotational axis of the turbine shaft, and toward and away the radially outwardly extending surface of the nozzle housing. A control is programmed to direct a movement system to position the flow control piston relative to the radially outwardly extending surface to achieve a desired volume of airflow to the turbine blades. A gas turbine engine starting system is also disclosed.