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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
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.
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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
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.
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公开(公告)号：US12031487B1
公开(公告)日：2024-07-09
申请号：US18214250
申请日：2023-06-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Ryan Prescott Susca , Ryan Shook
CPC classification number: F02C7/232 , F02C7/236 , F02C9/30 , F05D2260/84
Abstract: A fuel system can include a main fuel pump (MFP) configured to output main flow to a main line, an augmentor fuel pump (AFP) configured to output an augmenter flow to an augmenter line, and a variable displacement pump assembly (VDPP) in fluid communication with the AFP via the augmentor line to receive the augmentor flow. The VDPP can include a variable displacement pump (VDP) configured to output a VDP flow to a VDP output line. The system can include a main fuel throttle valve assembly (MFTV) in fluid communication with the main fuel pump via the main line to receive the main flow and in fluid communication with the VDPP via a backup line. The MFTV can be in fluid communication with an engine line, an actuation assembly in fluid communication with the VDPP via an actuation line to receive an actuation flow.
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公开(公告)号：US20230417190A1
公开(公告)日：2023-12-28
申请号：US17846583
申请日：2022-06-22
Applicant: Hamilton Sundstrand Corporation
Inventor： Naison E. Mastrocola , Ryan Prescott Susca
CPC classification number: F02C7/236 , F02C7/222 , F05D2220/323 , F02C9/44 , F02C7/232
Abstract: According to an aspect, a dual fuel pump system includes a primary run-dry fuel pump having multiple stages, each of the stages configured to produce fuel pressure between a pump stage inlet and a pump stage outlet, and at least one of the stages operable in a run-dry mode. A secondary run-dry fuel pump is operable in run-dry mode, where the secondary run-dry fuel pump is mechanically driven by an accessory gearbox of an engine of the aircraft. An electric motor is operably coupled to the primary run-dry fuel pump and configured to drive rotation of the stages of the primary run-dry fuel pump. A controller is configured to pressurize fuel using a single stage of the primary run-dry fuel pump, pressurize fuel using at least two stages of the primary run-dry fuel pump, and pressurize fuel using the secondary run-dry fuel pump under various operating conditions.
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公开(公告)号：US20230339604A1
公开(公告)日：2023-10-26
申请号：US17726734
申请日：2022-04-22
Applicant: Hamilton Sundstrand Corporation
Inventor： Ryan Prescott Susca , Morgan O'Rorke , Steve Doerner
IPC: B64C25/22 , B64C13/50 , F15B1/26 , F15B7/00 , F15B21/0427
CPC classification number: B64C25/22 , B64C13/504 , F15B1/26 , F15B7/006 , F15B21/0427 , F15B2211/20515 , F15B2211/20538 , F15B2211/20561 , F15B2211/27 , F15B2211/3058 , F15B2211/411 , F15B2211/4159 , F15B2211/6343 , F15B2211/6651 , F15B2211/8752
Abstract: A hydraulic actuator system of an aircraft includes a hydraulic actuator having a housing with a piston having a piston shaft with a piston head attached thereto and arranged within the housing. The piston head divides in internal volume of the housing into an extend cavity and a retract cavity and the extend cavity is configured to be connected to low pressure fluid source. The system also includes a pressure selector unit fluidly connected to the retract cavity and configured to be connected to the low pressure fluid source and to a high pressure fluid source. The unit include three solenoids with the first and second connected in parallel to the fluid sources and the third solenoid having a third solenoid first input connected to the first solenoid output, a third solenoid second input connected to the second solenoid output, and a third solenoid output connected to the retract cavity.
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Patent Agency Ranking
公开(公告)号：US12209538B1
公开(公告)日：2025-01-28
申请号：US18244531
申请日：2023-09-11
Applicant: Hamilton Sundstrand Corporation
Inventor： Ryan Prescott Susca , Ryan Shook , James C. Kopp , Tyler J. Selstad
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), and a cross-over outlet line. An augmentor fuel pump sub-system (ABFP) has an inlet connected in fluid communication with the cross-over outlet line, and an outlet connected in fluid communication with a main augmentor supply line. A actuation fuel pump sub-system (AFP) has an inlet connected in fluid communication with a branch of the main outlet line, an outlet line with a first outlet line branch configured to connect to supply fuel to the MFTV, and a second outlet line branch configured to connect to supply fuel to an actuation system.
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公开(公告)号：US20240392776A1
公开(公告)日：2024-11-28
申请号：US18202661
申请日：2023-05-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Ryan Shook , Ryan Prescott Susca , Todd Haugsjaahabink
Abstract: A fluid pump system can include a controllable pump configured to generate a pump flow through the controllable pump and to output an output flow to an output line. The fluid pump system can include a flow split system configured to be in fluid communication with the controllable pump in a bypass state such that the flow split system is configured to divert a portion of the pump flow to maintain a desired output flow to the output line but to also allow the controllable pump to maintain a minimum pump flow through the controllable pump to maintain pump temperature below a high temperature threshold.
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公开(公告)号：US20240392775A1
公开(公告)日：2024-11-28
申请号：US18202477
申请日：2023-05-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Ryan Prescott Susca , Ryan Shook
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. The BPV includes a thermostatic actuator configured to control recirculation flow amount through the BPV based on fluid temperature in the BPV. A method includes thermostatically controlling a bypass valve (BPV) to recirculate flow from the outlet line to an input line of the VDP in the event of flow demanded by the downstream system dropping below a predetermined low threshold of flow through the VDP based on fluid temperature in the BPV.
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公开(公告)号：US20240392773A1
公开(公告)日：2024-11-28
申请号：US18202513
申请日：2023-05-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Ryan Prescott Susca , Ryan Shook
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 relief valve (RV) includes an RV inlet in fluid communication with the outlet line, and an RV 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 RV to change function of the RV between a first function and a second function. The first function is a high pressure relief valve function. The second function is as a wind milling bypass function. A controller is operatively connected to the actuator to control the RV to change back and forth between the first function and the second function.
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公开(公告)号：US20240392772A1
公开(公告)日：2024-11-28
申请号：US18202404
申请日：2023-05-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Ryan Shook , Ryan Prescott Susca
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. The VDP includes a variable stop configured to vary minimum displacement of the variable displacement mechanism based on position of the variable stop relative to a housing of the VDP. A pressure sensing valve (PSV) is operatively connected between the inlet line and the outlet line to actuate a stop member to adjust stopping position of the variable stop based on pressure differential between the inlet line and the outlet line.
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