公开(公告)号：US10569887B2

公开(公告)日：2020-02-25

申请号：US15923598

申请日：2018-03-16

Applicant: Hamilton Sundstrand Corporation

Inventor： Patrick Valiquette ,  Erin G. Kline ,  Christopher McAuliffe ,  Thomas M. Zywiak ,  James Joyce ,  Lauren Kodet

IPC: B64D13/06 ,  B64D13/08

Abstract: A system and method onboard an aircraft includes a ram air temperature sensor, a bleed air temperature sensor, a valve, and a controller. The ram air temperature sensor is positioned to sense a ram air temperature of a ram air flow. The bleed air temperature sensor is positioned to sense a bleed air temperature of a bleed air flow, wherein the bleed air flow is cooled by a heat exchanger using the ram air flow. The valve is configured to control the bleed air flow upstream of the heat exchanger. The controller is configured to determine a bleed air threshold based on the ram air temperature, and control the valve to reduce the bleed air flow in response to the bleed air temperature reaching the bleed air threshold.

公开(公告)号：US20190285324A1

公开(公告)日：2019-09-19

申请号：US15923598

申请日：2018-03-16

Applicant: Hamilton Sundstrand Corporation

Inventor： Patrick Valiquette ,  Erin G. Kline ,  Christopher McAuliffe ,  Thomas M. Zywiak ,  James Joyce ,  Lauren Kodet

IPC: F25B49/02 ,  F25B9/00 ,  B64D13/08

Abstract: A system and method onboard an aircraft includes a ram air temperature sensor, a bleed air temperature sensor, a valve, and a controller. The ram air temperature sensor is positioned to sense a ram air temperature of a ram air flow. The bleed air temperature sensor is positioned to sense a bleed air temperature of a bleed air flow, wherein the bleed air flow is cooled by a heat exchanger using the ram air flow. The valve is configured to control the bleed air flow upstream of the heat exchanger. The controller is configured to determine a bleed air threshold based on the ram air temperature, and control the valve to reduce the bleed air flow in response to the bleed air temperature reaching the bleed air threshold.