公开(公告)号：US20240392728A1

公开(公告)日：2024-11-28

申请号：US18202534

申请日：2023-05-26

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Shook ,  Ryan Prescott Susca

IPC: F02C9/30 ,  F04C14/24

Abstract: A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. An electromechanical actuator (EMA) is operatively connected to actuate the variable displacement mechanism. A flow sensing valve (FSV) connected in the outlet line. The FSV includes a sensor configured to generate sensor data indicative of flow out of the outlet line. A controller is operatively connected to the EMA to control the variable displacement mechanism based on the sensor data to support flow demands from one or more downstream systems.

公开(公告)号：US11946420B1

公开(公告)日：2024-04-02

申请号：US18213053

申请日：2023-06-22

Applicant: Hamilton Sundstrand Corporation

Inventor： Edward W. Goy ,  Ryan Prescott Susca ,  Ryan Shook

IPC: F02C7/236 ,  F02C7/14 ,  F02C7/22 ,  F02C7/232 ,  F02C9/32

CPC classification number: F02C7/236 ,  F02C7/14 ,  F02C7/222 ,  F02C7/232 ,  F02C9/32

Abstract: A fuel system includes a main pump assembly. The main pump assembly has a main fuel pump connected to an input line, a recirculation pump connected to the input line, and a fuel recirculation system. A recirculation control includes a first selector valve in fluid communication with an outlet line of the recirculation pump, with a recirculation return line connected to return fuel to the input line, and with an inter-valve line. The recirculation control includes a second selector valve in fluid communication with the inter-valve line, with a back-up line connecting the second selector valve to a main fuel control, and with a cooler recirculation line connected to supply the one or more coolers.

公开(公告)号：US11898496B1

公开(公告)日：2024-02-13

申请号：US17870078

申请日：2022-07-21

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Prescott Susca ,  Morgan O'Rorke ,  Adrian L. Stoicescu

IPC: F02C7/236 ,  F02C7/232

CPC classification number: F02C7/236 ,  F02C7/232 ,  F05D2220/323 ,  F05D2260/607 ,  F05D2260/84

Abstract: A fuel system of an aircraft engine, having: a boost pump having an input and an output; one or more selector valves; a first component pump having an input fluidly coupled to the output of the boost pump and an output of the first component pump is configured to direct fuel to a first component via the one or more selector valves; and a second component pump having an input that is selectively coupled to either the input or the output of the boost pump by the one or more selector valves, and an output of the second component pump is fluidly coupled to a second component and selectively coupled to the first component by the one or more selector valves.

公开(公告)号：US12286967B2

公开(公告)日：2025-04-29

申请号：US18096932

申请日：2023-01-13

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Prescott Susca ,  Ryan Shook

IPC: F04B49/08 ,  F04B49/24 ,  F04B53/10

Abstract: A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. A bypass valve (BPV) includes a BPV inlet in fluid communication with the outlet line, and a BPV outlet in fluid communication with a bypass line that feeds into the inlet line upstream of the VDP. An actuator is operatively connected to control the BPV to vary flow from the BPV inlet to the bypass line. A controller is operatively connected to the actuator to control recirculation flow passed through the BPV based on requested flow from a downstream system supplied by the outlet line and based on a predetermined low threshold of flow through the VDP.

公开(公告)号：US20250084795A1

公开(公告)日：2025-03-13

申请号：US18244425

申请日：2023-09-11

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Shook ,  Ryan Prescott Susca

IPC: F02C7/236 ,  F04B23/14

Abstract: A fuel system a main fuel pump sub-system (MFP) with an inlet for receiving a supply of fuel from an inlet line. The MFP has a main outlet line configured to supply fuel to a main fuel throttle valve assembly (MFTV), and a cross-over outlet line. A variable displacement pump sub-system (VDPP) has a first inlet connected in fluid communication with the cross-over outlet line, a second inlet connected to a branch of the main outlet line, a first outlet line configured to connect to supply fuel to the MFTV, and a second outlet line configured to connect to supply fuel to an actuation system.

公开(公告)号：US20250043804A1

公开(公告)日：2025-02-06

申请号：US18228601

申请日：2023-07-31

Applicant: Hamilton Sundstrand Corporation

Inventor： August M. Coretto ,  Francis P. Marocchini ,  Ryan Prescott Susca

IPC: F15B13/044

Abstract: A system can include a first controllable valve configured to output a first control pressure on one or more first pressure control lines, a second controllable valve configured to output a second control pressure on one or more second pressure control lines, and a valve assembly. The valve assembly can be configured to direct the first control pressure to a first functional system and the second control pressure to a second functional system in a first state, direct the first control pressure to both of the first functional system and the second functional system in a second state, and direct the second control pressure to both of the first functional system and the second functional system in a third state.

公开(公告)号：US12163537B1

公开(公告)日：2024-12-10

申请号：US18382281

申请日：2023-10-20

Applicant: Hamilton Sundstrand Corporation

Inventor： Sachin Ramprashad ,  August M. Coretto ,  Frank Perrelli ,  Ryan Prescott Susca

IPC: F15B13/044 ,  F15B13/04 ,  F15B20/00

Abstract: A method includes using two parallel electrohydraulic servo valves EHSVs with a single transfer valve to move an actuator during a normal operation mode. The method includes upon failure of one of the EHSVs, using the single transfer valve to disconnect a non-operational one of the EHSVs and continuing to move the actuator with a functional one of the EHSVs in a backup mode.

公开(公告)号：US20240392725A1

公开(公告)日：2024-11-28

申请号：US18202800

申请日：2023-05-26

Applicant: Hamilton Sundstrand Corporation

Inventor： Edward W. Goy ,  Ryan Prescott Susca ,  Ryan Shook

IPC: F02C7/236 ,  B64D37/34 ,  F02C7/22 ,  F02C9/36

Abstract: A fuel system can include a main pump assembly having a main fuel pump connected to an input line and configured to pump fuel to a main fuel control via a main fuel control line, a recirculation pump connected to the input line, and a fuel recirculation system connected to the recirculation pump and upstream of the main fuel control. The fuel recirculation system can be configured to select a mode from a plurality of modes. The plurality of modes can include a recirculation mode and a backup mode. The fuel recirculation system can be configured to recirculate fuel from the recirculation pump to a tank through one or more coolers in the recirculation mode, and to provide fuel to the main fuel control in the backup mode.

公开(公告)号：US20240241526A1

公开(公告)日：2024-07-18

申请号：US18096949

申请日：2023-01-13

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Prescott Susca ,  Ryan Shook

IPC: G05D7/06

CPC classification number: G05D7/0688 ,  G05D7/0623

Abstract: A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. A bypass valve (BPV) includes a BPV inlet in fluid communication with the outlet line, and a BPV outlet in fluid communication with a bypass line that feeds into the inlet line upstream of the VDP. An actuator is operatively connected to control the BPV to vary flow from the BPV inlet to the bypass line. A flow sensing valve (FSV) is connected in the outlet line. The FSV includes a sensor configured to generate sensor data indicative of flow out of the outlet line. A controller operatively connected to the actuator to control recirculation flow passed through the BPV based on the sensor data and based on a predetermined low threshold of flow through the VDP.

公开(公告)号：US20240240631A1

公开(公告)日：2024-07-18

申请号：US18096971

申请日：2023-01-13

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Prescott Susca ,  Ryan Shook

IPC: F04B49/24 ,  F04C14/26

CPC classification number: F04B49/246 ,  F04C14/26

Abstract: A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. A bypass valve (BPV) includes a BPV inlet in fluid communication with the outlet line, and a BPV outlet in fluid communication with a bypass line that feeds into the inlet line upstream of the VDP. A minimum pressure shutoff valve (MPSOV) is connected in fluid communication with the outlet line, configured to block flow through the outlet line for shutoff. The MPSOV is connected in fluid communication with the BPV for triggering recirculation through the BPV.