公开(公告)号：US20190257701A1

公开(公告)日：2019-08-22

申请号：US15901383

申请日：2018-02-21

Applicant: Rolls-Royce Corporation

Inventor： Brian Thomas Spangler ,  John V. Watkin ,  Timothy C. Keeney ,  Neil James Dunaway

IPC: G01K15/00 ,  G01K13/02 ,  G01K7/02 ,  G01K7/04

Abstract: Systems and methods are provided to detect a failed thermocouple. A temperature in a gas path of a gas turbine engine may be measured, where the temperature is based on a signal generated by a thermocouple during a startup of the gas turbine engine and/or during an idle period that immediately follows the startup, and the thermocouple protrudes into the gas path. A failure of the thermocouple may be detected if the temperature is determined to be less than a threshold temperature.

公开(公告)号：US20220205691A1

公开(公告)日：2022-06-30

申请号：US17698554

申请日：2022-03-18

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies Inc.

Inventor： Brian Thomas Spangler ,  Douglas J. Snyder

IPC: F25B25/00

Abstract: A cooling system is provided including a two-phase pump loop and a vapor compression system. The two-phase pump loop cools a thermal load with a first coolant. The vapor compression system is configured to circulate a second coolant. The vapor compression system includes a liquid vapor separator which separates the second coolant into a liquid portion and a gaseous portion. The liquid vapor separator is a thermal energy storage for the two-phase pump loop. A condenser of the two-phase pump loop transfers heat from the first coolant to the liquid portion of the second coolant in the liquid-vapor separator.

公开(公告)号：US11137294B2

公开(公告)日：2021-10-05

申请号：US15901383

申请日：2018-02-21

Applicant: Rolls-Royce Corporation

Inventor： Brian Thomas Spangler ,  John V. Watkin ,  Timothy C. Keeney ,  Neil James Dunaway

IPC: G01K15/00 ,  G01K7/02 ,  G01K7/04 ,  G01K13/02 ,  G01K13/024

Abstract: Systems and methods are provided to detect a failed thermocouple. A temperature in a gas path of a gas turbine engine may be measured, where the temperature is based on a signal generated by a thermocouple during a startup of the gas turbine engine and/or during an idle period that immediately follows the startup, and the thermocouple protrudes into the gas path. A failure of the thermocouple may be detected if the temperature is determined to be less than a threshold temperature.

公开(公告)号：US20190316818A1

公开(公告)日：2019-10-17

申请号：US16058445

申请日：2018-08-08

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies Inc.

Inventor： Brian Thomas Spangler ,  Douglas J. Snyder

IPC: F25B25/00

Abstract: A cooling system is provided including a two-phase pump loop and a vapor compression system. The two-phase pump loop cools a thermal load with a first coolant. The vapor compression system is configured to circulate a second coolant. The vapor compression system includes a liquid vapor separator which separates the second coolant into a liquid portion and a gaseous portion. The liquid vapor separator is a thermal energy storage for the two-phase pump loop. A condenser of the two-phase pump loop transfers heat from the first coolant to the liquid portion of the second coolant in the liquid-vapor separator.