公开(公告)号：US09784508B2

公开(公告)日：2017-10-10

申请号：US13863718

申请日：2013-04-16

Applicant: Hamilton Sundstrand Corporation

Inventor： Thomas M. Zywiak

IPC: B60H1/00 ,  F28F27/00 ,  B64D13/08 ,  B64D13/06

CPC classification number: F28F27/00 ,  B64D13/08 ,  B64D2013/0644 ,  Y02T50/56

Abstract: A method of monitoring a heat exchanger arrangement is provided. The method includes detecting a rotational speed of a ram air fan configured to draw air through the heat exchanger arrangement. The method also includes detecting a power input from a motor to the ram air fan to maintain a commanded rotational speed of the ram air fan. The method further includes comparing the power input detected to a predetermined power limit for the commanded rotational speed. The method yet further includes decreasing the rotational speed of the ram air fan with a controller if the power input detected exceeds the predetermined power limit.

公开(公告)号：US11192655B2

公开(公告)日：2021-12-07

申请号：US15802947

申请日：2017-11-03

Applicant: Hamilton Sundstrand Corporation

Inventor： Louis J. Bruno ,  Thomas M. Zywiak

IPC: B64D13/08 ,  B64D13/06 ,  B64D13/02

Abstract: An environmental control system of an aircraft includes a ram air circuit with a ram air shell having at least one heat exchanger positioned therein, a dehumidification system arranged in fluid communication with the ram air circuit, a compression device arranged in fluid communication with the ram air circuit and the at least one dehumidification system, and an expansion device arranged in fluid communication with the ram air circuit. At least one of the compression device and the expansion device is selectively operable to supplement the ram air within the ram air circuit to meet a demand of the aircraft.

公开(公告)号：US10830133B2

公开(公告)日：2020-11-10

申请号：US14755929

申请日：2015-06-30

Applicant: Hamilton Sundstrand Corporation

Inventor： Louis J. Bruno ,  Thomas M. Zywiak

IPC: F02C6/08 ,  B64D13/06

Abstract: An engine compressor bleed system of an engine for an aircraft is provided including a plurality of compressor pressure ports configured to supply bleed air to satisfy a cooling load for at least a first stage of a flight profile of an aircraft. A first pressure port of the plurality of compressor pressure ports is configured to provide bleed air having a pressure at least equal to a cabin pressure of an aircraft and a temperature that does not exceed a predetermined threshold.

公开(公告)号：US10690366B2

公开(公告)日：2020-06-23

申请号：US15925060

申请日：2018-03-19

Applicant: Hamilton Sundstrand Corporation

Inventor： Joseph J. Ensberg ,  Thomas M. Zywiak ,  Matthew J. Smith

IPC: F24F11/30 ,  F24F11/88 ,  B64D13/08 ,  B64D13/06 ,  F24F140/60 ,  F24F110/40 ,  F28D21/00 ,  F28G13/00

Abstract: A system and method includes at least one heat exchanger, a ram fan, and a controller. The ram fan is driven by a motor. A motor control circuit is configured to provide power to the motor to drive the ram fan. The ram fan is configured to provide a ram flow through the at least one heat exchanger from a ram air inlet. The controller is configured to determine a blockage level of the at least one heat exchanger based on the power to the motor, a speed of the ram fan, and a temperature of the ram flow at the ram fan.

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：US20190389586A1

公开(公告)日：2019-12-26

申请号：US16014740

申请日：2018-06-21

Applicant: Hamilton Sundstrand Corporation

Inventor： Donald E. Army ,  Thomas M. Zywiak

IPC: B64D13/08

Abstract: A method of operating a RAM inlet header (RIH) is provided. The method includes determining a temperature of RAM air flows in a body through which RAM air flows from an inlet toward a heat exchanger, determining a temperature of excess air for use in an environmental control system (ECS) and, in an event the temperature of the excess air is less than the temperature of the RAM air flows, directing a curtain of the excess air from a nozzle body and along a wall of the body into flows of the RAM air and toward the heat exchanger.

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.

公开(公告)号：US20190225343A1

公开(公告)日：2019-07-25

申请号：US15987590

申请日：2018-05-23

Applicant: Hamilton Sundstrand Corporation

Inventor： Louis J. Bruno ,  Thomas M. Zywiak

IPC: B64D13/06

Abstract: An environmental control system of an aircraft includes a ram air circuit including a ram air shell having at least one heat exchanger positioned therein, a dehumidification system arranged in fluid communication with the ram air circuit, and a compressing device arranged in fluid communication with the ram air circuit and the dehumidification system. The compression device includes a compressor and a first turbine coupled to one another via a shaft. During operation of the first turbine, work is extracted from a first medium within the first turbine to power the compressor. At an outlet of the first turbine, a temperature of the first medium is above freezing and at least a portion of the moisture within the first medium is condensed.

公开(公告)号：US20190162428A1

公开(公告)日：2019-05-30

申请号：US15824378

申请日：2017-11-28

Applicant: Hamilton Sundstrand Corporation

Inventor： Donald E. Army ,  Gregory L. DeFrancesco ,  Thomas M. Zywiak

IPC: F24F3/12 ,  B64D13/06

Abstract: A flow sensing ozone converter includes an inlet housing, an outlet housing, and an ozone converter core. The flow sensing ozone converter integrates flow sensing and oxygen removal components. The inlet housing is provided with an inlet housing flange. The outlet housing is provided with an outlet housing flange. The ozone converter core is at least partially received within the inlet housing. The ozone converter is provided with an ozone converter flange that abuts the inlet housing flange and the outlet housing flange.

公开(公告)号：US10203267B2

公开(公告)日：2019-02-12

申请号：US14323368

申请日：2014-07-03

Applicant: Hamilton Sundstrand Corporation

Inventor： Paul D'Orlando ,  Rosanna C. Glynn ,  William R. Fiske ,  Christopher McAuliffe ,  Thomas M. Zywiak ,  Fanping Sun ,  Joseph V. Mantese ,  Radoslaw Zakrzewski ,  Bernard Dion ,  Meade G. Ferrigan

IPC: F24F11/00 ,  G01M17/00 ,  G01M15/14 ,  B64D13/00 ,  G01H1/00 ,  F24F11/30 ,  F24F11/62 ,  F24F11/70 ,  B64D45/00 ,  F24F110/00 ,  F24F11/32 ,  F24F11/63

Abstract: A method includes receiving a sampled input, the sampled input being a result of a detection device sensing a plurality of environmental conditions by an air cycle machine; processing the sampled input to detect whether the plurality of environmental conditions includes a deviation from an expected operation of the air cycle machine; and generating a notification output in response to the plurality of environmental conditions including the deviation from the expected operation of the air cycle machine.