公开(公告)号：US20200088107A1

公开(公告)日：2020-03-19

申请号：US16129919

申请日：2018-09-13

Applicant: Hamilton Sundstrand Corporation

Inventor： Robert M. DeRoy ,  Patrick Yung ,  John M. Maljanian ,  Jeffry K. Kamenetz ,  Mark Vignali ,  John A. Schwemmer

IPC: F02C9/18 ,  B64D13/06 ,  F02M26/47

Abstract: A system includes a venturi duct, a first delta P sensor, a second delta P sensor, and an ECS controller. The venturi duct is configured to receive a first bleed air flow or a second bleed air flow. The first and second delta P sensors are configured to sense a first and second pressure difference between a first point and a second point of the venturi duct. The first and second delta P sensors are configured to sense pressure difference over different pressure ranges. The ECS controller is configured determine a flow rate of an ECS air flow based upon the first pressure and/or second sensed pressure differences.

公开(公告)号：US11008948B2

公开(公告)日：2021-05-18

申请号：US16129919

申请日：2018-09-13

Applicant: Hamilton Sundstrand Corporation

Inventor： Robert M. DeRoy ,  Patrick Yung ,  John M. Maljanian ,  Jeffry K. Kamenetz ,  Mark Vignali ,  John A. Schwemmer

IPC: F02C9/18 ,  B64D13/06 ,  B64D13/04

Abstract: A system includes a venturi duct, a first delta P sensor, a second delta P sensor, and an ECS controller. The venturi duct is configured to receive a first bleed air flow or a second bleed air flow. The first and second delta P sensors are configured to sense a first and second pressure difference between a first point and a second point of the venturi duct. The first and second delta P sensors are configured to sense pressure difference over different pressure ranges. The ECS controller is configured determine a flow rate of an ECS air flow based upon the first pressure and/or second sensed pressure differences.