公开(公告)号：US20240240630A1

公开(公告)日：2024-07-18

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

CPC classification number: F04B49/08 ,  F04B49/24 ,  F04B53/10 ,  F04B2201/06 ,  F04B2205/05

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：US12025084B1

公开(公告)日：2024-07-02

申请号：US18208693

申请日：2023-06-12

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Prescott Susca ,  Ryan Shook

IPC: F02M37/18 ,  F02M37/00 ,  F02M37/32

CPC classification number: F02M37/18 ,  F02M37/0047 ,  F02M37/32

Abstract: In accordance with at least one aspect of this disclosure, a system includes an in-tank fuel pump configured to be disposed in a fuel tank to supply fuel from the fuel tank to a fuel line at a first pressure. A boost pump is configured to be disposed in the fuel line to receive fuel from the in-tank fuel pump and supply the fuel to one or more downstream components at a boost pressure. An augmentation pump system is configured to be disposed in the fuel line to receive fuel from the boost pump and to supply fuel at a second pressure to one of, at least one fuel consuming component downstream of the augmentation pump system, or an in-tank ejector pump, based on an operational state of the in-tank fuel pump.

公开(公告)号：US20240183352A1

公开(公告)日：2024-06-06

申请号：US18074807

申请日：2022-12-05

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Shook ,  Ryan Prescott Susca

IPC: F04B49/22

CPC classification number: F04B49/22 ,  F16K31/06

Abstract: A system includes a variable displacement pump (VDP) having a pump inlet, a pump outlet, and a pump control line configured to receive a control pressure to actuate a variable displacement mechanism of the VDP. A controller is operatively connected to the pump control line to actively control actuation of the variable displacement mechanism in a first mode for variable displacement pumping and in a second mode for fixed displacement pumping.

公开(公告)号：US11994078B1

公开(公告)日：2024-05-28

申请号：US18074782

申请日：2022-12-05

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Shook ,  Ryan Prescott Susca

IPC: F02C9/30 ,  F16K31/04

CPC classification number: F02C9/30 ,  F16K31/046 ,  F04C2270/18 ,  F04C2270/585

Abstract: A system includes a variable displacement pump (VDP) with a pump inlet and a pump outlet. The VDP is configured to receive a flow at the pump inlet at a first pressure and to outlet a flow from the pump outlet at a second pressure elevated relative to the first pressure. The VDP includes a variable displacement mechanism configured to vary the second pressure. A controller is operatively connected to a pressure sensor and to the variable displacement mechanism for control of the VDP. An output splitter is configured to split flow from the pump outlet to a first outlet branch and to a second outlet branch for supplying two different systems each having a different pressure schedule. The output splitter is operatively connected to the controller, which is configured to control the output splitter to regulate pressure in both of the first and second outlet branches.

公开(公告)号：US20240026825A1

公开(公告)日：2024-01-25

申请号：US17868222

申请日：2022-07-19

Applicant: Hamilton Sundstrand Corporation

Inventor： Ryan Prescott Susca ,  Todd Haugsjaahabink ,  Naison E. Mastrocola ,  Adrian L. Stoicescu ,  Zachary Allen Ray LeDuc ,  Eric Briggs ,  Morgan O'Rorke

IPC: F02C7/236 ,  F02C9/26 ,  F02C9/28

CPC classification number: F02C7/236 ,  F02C9/263 ,  F02C9/28 ,  F05D2270/3015 ,  F05D2220/323

Abstract: A two stage fuel delivery system for an aircraft includes a first stage pump including an inlet connected to a source of fuel and an outlet connected to a combustor assembly, and a second stage pump including an inlet portion connected to the source of fuel and an outlet portion connected to the combustor assembly. A bypass valve is connected between the source of fuel, the inlet, and the inlet portion. The bypass valve selectively disconnects the second stage pump from the source of fuel. A metering valve is connected to the inlet and the inlet portion. The metering valve includes a metering valve inlet and a metering valve outlet. A pressure regulating valve is connected to the metering valve. A stage monitoring system is configured to detect a change in operation of the second stage and control the bypass valve.