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：US12146478B2

公开(公告)日：2024-11-19

申请号：US17825859

申请日：2022-05-26

Applicant: Hamilton Sundstrand Corporation

Inventor： Morgan O′Rorke ,  Ryan Susca ,  Ryan Shook

IPC: F04B23/04 ,  F04B49/22 ,  F23R3/28 ,  F02C7/22

Abstract: A fuel pump system includes a main fuel pump between a system fuel inlet and a system fuel outlet, a fuel flow path at least partially defined between the main fuel pump and the system fuel outlet, and a support fuel pump between the system fuel inlet and the system fuel outlet. The support fuel pump is sized to provide more flow to the system fuel outlet, when in an active state, than the main fuel pump. The system includes a valve assembly in fluid communication with the support fuel pump configured and adapted to connect the support fuel pump to the system fuel outlet, and a pressure regulating valve in fluid communication with the fuel flow path between the main fuel pump and the system fuel outlet. The system includes an EHSV in fluid communication with the fuel flow path between the PRV and the system fuel outlet.

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.

公开(公告)号：US11976599B1

公开(公告)日：2024-05-07

申请号：US18084768

申请日：2022-12-20

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Prescott Susca ,  Ryan Shook

IPC: F02C9/30 ,  F02C7/236 ,  F04D15/00 ,  F04D15/02

CPC classification number: F02C9/30 ,  F02C7/236 ,  F04D15/0011 ,  F04D15/0083 ,  F04D15/0254 ,  F05D2220/323 ,  F05D2270/07 ,  F05D2270/64

Abstract: A system includes a first pump connected to an inlet line and connected to a first outlet line for supplying a first sub-system over a first pressure schedule. A second pump is connected to the inlet line and connected to a second outlet line for supplying a second subsystem over a second pressure schedule. A backup selector is in fluid communication with the first and second outlet lines. The backup selector is configured to switch to a first backup mode to supply the first sub-system from the second pump upon failure of the first pump. The backup selector is configured to switch to a second backup mode to supply the second sup-system from the first pump upon failure of the second pump.

公开(公告)号：US11713724B1

公开(公告)日：2023-08-01

申请号：US17844872

申请日：2022-06-21

Applicant: Hamilton Sundstrand Corporation

Inventor： Morgan O'Rorke ,  Ryan Prescott Susca ,  Ryan Shook

IPC: F02C9/28 ,  F02C7/236 ,  B64D27/10 ,  B64D37/00

CPC classification number: F02C9/28 ,  B64D27/10 ,  B64D37/005 ,  F02C7/236 ,  F05D2240/35 ,  F05D2270/301 ,  F05D2270/80

Abstract: A dual pump fuel delivery system for an aircraft includes a fixed displacement fuel pump including an inlet and an outlet. The fixed displacement fuel pump is configured to supply a first portion of a fuel demand for the aircraft. A variable displacement fuel pump including an inlet portion and an outlet portion includes a selectively adjustable pump actuator configured to supply a second portion of the fuel demand. The second portion is variable. A fuel demand sensor operates to detect a selected fuel demand. A control member is operatively connected to the fuel demand sensor and the variable displacement fuel pump. The control member being configured to operate to adjust the variable displacement fuel pump to output the second portion of the fuel demand to satisfy the selected fuel demand.

公开(公告)号：US10794493B2

公开(公告)日：2020-10-06

申请号：US15707191

申请日：2017-09-18

Applicant: Hamilton Sundstrand Corporation

Inventor： Edward W. Goy ,  Ryan Shook

IPC: F16J15/34 ,  F04D29/14 ,  F04D29/12

Abstract: Embodiments include an apparatus and techniques for operating an electromagnetic cartridge seal. Embodiments include operating a cartridge seal in one of a plurality of modes, and receiving a signal at a force applying mechanism of the cartridge seal, the force applying mechanism being coupled to a primary sealing component of the cartridge seal. Embodiments also include controlling the force applying mechanism based at least in part on the received signal.

公开(公告)号：US20250084838A1

公开(公告)日：2025-03-13

申请号：US18244390

申请日：2023-09-11

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Shook ,  Ryan Prescott Susca

IPC: F04B23/14 ,  F02C7/236

Abstract: A fuel system includes 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), a first cross-over outlet line, and a second cross-over outlet line. An augmentor fuel pump sub-system (ABFP) has an inlet connected in fluid communication with the first cross-over outlet line, and an outlet connected in fluid communication with a main augmentor supply line. A variable displacement pump sub-system (VDPP) has an inlet connected in fluid communication with the second cross-over 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：US12234816B2

公开(公告)日：2025-02-25

申请号：US17508058

申请日：2021-10-22

Applicant: Hamilton Sundstrand Corporation

Inventor： Matej Rutar ,  Morgan O'Rorke ,  Ryan Shook ,  Ryan Susca

IPC: F04B49/12 ,  F04B49/00 ,  F04B49/24

Abstract: In accordance with at least one aspect of this disclosure, a variable displacement pump system can include, a variable displacement pump disposed in a main line and configured to supply pressure to receive a low pressure fluid and to output a high pressure fluid. The main line can connect a hydraulic fluid source to a plurality of system actuators, where the variable displacement pump is disposed in the main line between the hydraulic fluid source and the plurality of system actuators to pressurize the hydraulic fluid.

公开(公告)号：US20240426225A1

公开(公告)日：2024-12-26

申请号：US18214064

申请日：2023-06-26

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Shook ,  Ryan Prescott Susca

IPC: F01D17/16 ,  F01D9/04

Abstract: A system for vane pitch actuation includes an electric motor with a rotary output shaft defining a drive axis. A worm shaft defines a drive axis, and is operatively connected to be driven in rotation about the drive axis by the rotary output shaft of the electric motor. A sync ring is defined about an engine axis that is orthogonal to the drive axis. The sync ring is configured to rotate about the engine axis over a range of positions for driving a plurality of variable pitch stator vanes to each have a pitch based on position of the sync ring. The sync ring includes a plurality of gear teeth for actuation of the sync ring by the electric motor.