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公开(公告)号：US11828233B2
公开(公告)日：2023-11-28
申请号：US17535902
申请日：2021-11-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Adrian L Stoicescu , Edward W. Goy , Benjamin T. Harder
CPC classification number: F02C7/236 , F02C7/232 , F02C9/263 , F02C9/30 , F02C9/32 , F05D2220/323 , F05D2270/3015
Abstract: A fuel pump system can include a motor and a pump connected to the motor. The pump can be configured to receive an inlet flow from an inlet line, to pressurize the inlet flow, and to output a pressurized flow to an output line for an engine. The system can include a bypass line disposed between the outlet line and the inlet line, and a bypass valve disposed on the bypass line and configured to allow pressurized flow to flow to the inlet line in an open state, and to prevent pressurized flow from flowing to the inlet line in a closed state. The bypass valve can be configured to allow pressurized flow to flow to the inlet line to circulate flow and to maintain a constant pressure on the output line.
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公开(公告)号：US11795948B2
公开(公告)日：2023-10-24
申请号：US17581424
申请日：2022-01-21
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Zachary Allen Ray Le Duc
CPC classification number: F04C23/001 , F04C18/10 , F04C2240/20
Abstract: A stacked gerotor pump is provided. The stacked gerotor pump includes a first gerotor pump defining a first inlet section and a first outlet section, a second gerotor pump defining a second inlet section and a second outlet section and a plate. The plate is interposed between the first and second gerotor pumps and defines upstream cavities respectively communicative with the first and second inlet sections, downstream cavities respectively communicative with the first and second outlet sections and a pre-pressurization hole by which the second outlet section is communicative with the first inlet section.
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公开(公告)号：US11713716B2
公开(公告)日：2023-08-01
申请号：US17403046
申请日：2021-08-16
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Weishun William Ni
CPC classification number: F02C7/22 , F04C2/06 , F05D2220/32
Abstract: A fuel pump assembly for a gas turbine engine includes a shaft for transmitting motion, a gear connected to and coaxial with the shaft with the gear having a first wear surface, a first bearing coaxial with the shaft with the first bearing being configured to support the gear and having a second wear surface positioned to interact with the first wear surface, and a plurality of indents. The indents are distributed in the first wear surface or the second wear surface and at least two of the plurality of indents are partially aligned in a radial direction.
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公开(公告)号：US20230220804A1
公开(公告)日：2023-07-13
申请号：US17570691
申请日：2022-01-07
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy
CPC classification number: F02C9/26 , F02C7/22 , F05D2220/323 , F05D2240/35
Abstract: A fuel system for a gas turbine engine includes an augmentor pump having an inlet communicating with a fuel supply source and a discharge communicating with an augmentation stage of the engine. An electric motor is operatively connected to drive the augmentor pump for selectively activating and deactivating the augmentor pump.
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公开(公告)号：US20230167772A1
公开(公告)日：2023-06-01
申请号：US17535902
申请日：2021-11-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Adrian L. Stoicescu , Edward W. Goy , Benjamin T. Harder
CPC classification number: F02C7/236 , F02C7/232 , F02C9/263 , F02C9/30 , F02C9/32 , F05D2220/323 , F05D2270/3015
Abstract: A fuel pump system can include a motor and a pump connected to the motor. The pump can be configured to receive an inlet flow from an inlet line, to pressurize the inlet flow, and to output a pressurized flow to an output line for an engine. The system can include a bypass line disposed between the outlet line and the inlet line, and a bypass valve disposed on the bypass line and configured to allow pressurized flow to flow to the inlet line in an open state, and to prevent pressurized flow from flowing to the inlet line in a closed state. The bypass valve can be configured to allow pressurized flow to flow to the inlet line to circulate flow and to maintain a constant pressure on the output line.
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Patent Agency Ranking
公开(公告)号：US20230048539A1
公开(公告)日：2023-02-16
申请号：US17403062
申请日：2021-08-16
Applicant: Hamilton Sundstrand Corporation
Inventor： Weishun William Ni , Edward W. Goy , James Harder
IPC: F16J15/40
Abstract: A seal assembly for preventing the flow of fluid includes a rotating component having a first sealing surface, a stationary component coaxial with the rotating component and having a second sealing surface with the second sealing surface configured to form a seal with the first sealing surface of the rotating component, and indents in one of the first sealing surface and the second sealing surface. The indents are configured to control a width of a gap between the first sealing surface and the second sealing surface to allow fluid to flow into the gap. At least two of the indents are at least partially aligned in the radial direction.
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公开(公告)号：US20230048163A1
公开(公告)日：2023-02-16
申请号：US17403046
申请日：2021-08-16
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Weishun William Ni
Abstract: A fuel pump assembly for a gas turbine engine includes a shaft for transmitting motion, a gear connected to and coaxial with the shaft with the gear having a first wear surface, a first bearing coaxial with the shaft with the first bearing being configured to support the gear and having a second wear surface positioned to interact with the first wear surface, and a plurality of indents. The indents are distributed in the first wear surface or the second wear surface and at least two of the plurality of indents are partially aligned in a radial direction.
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公开(公告)号：US10584747B1
公开(公告)日：2020-03-10
申请号：US16208189
申请日：2018-12-03
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Ryszard Czeslaw Wlaznik , Joseph Wetch
Abstract: A bearing for a gear pump includes a bearing body defining a bearing bore defined therethrough along an axis for receiving a gear shaft. The bearing bore defines a cylindrical bearing inner diameter surface. The bearing body defines an outer mating surface configured for mounting to another bearing body. A groove is defined in the inner diameter surface along an axial direction relative to the axis to provide clearance for gear journal motion between the inner diameter surface and the gear shaft. The groove is defined in a portion of the inner diameter surface opposite the mating surface.
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公开(公告)号：US20240301878A1
公开(公告)日：2024-09-12
申请号：US18669097
申请日：2024-05-20
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Timothy J. Franckowiak
CPC classification number: F04C2/16 , F02C7/22 , F04C13/00 , F04C15/0026 , F04C15/0057 , F04C2240/50
Abstract: A gear pump includes a pair of gears having meshed teeth. One of the gears is configured for connection to a source of drive. The gears are received within a housing. The housing has an inlet port configured for connection to a source of fluid and an outlet port. Each of the gears have a shaft rotating within the housing on a bearing on each axial side of each gear. At least one of the bearings associated with each of the pair of gears has a plurality of springs received in recesses to bias the said at least one bearing against an end face of a respective one of the pair of gears. A retention plate holds each of the plurality springs. A method of assembly is also disclosed.
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20.发明授权公开(公告)号：US12078157B2
公开(公告)日：2024-09-03
申请号：US17562214
申请日：2021-12-27
Applicant: Hamilton Sundstrand Corporation
Inventor： Weishun Willaim Ni , Edward W. Goy , Benjamin T. Harder , Mark W. Shoemaker
CPC classification number: F04B1/328 , F02C9/30 , F04B49/06 , F04B13/00 , F04B2201/12051 , F04B2205/02 , F04B2205/05
Abstract: A variable displacement piston pump, having: a housing, a pivot assembly to pivot between minimal and maximum pivot angles; a pump cover defining an actuator bore with an actuator piston, an actuator arm extending from the actuator piston to the pivot assembly; and an electronic control unit (ECU) coupled to the pump, the ECU having: a pump controller, a linear variable differential transducer (LVDT) coupled to the pump controller and the actuator piston, and an electrohydraulic solenoid valve (EHSV) coupled to the pump controller, the ECU is configured to: determine a pivot differential for the pivot assembly between a target pivot angle and a current pivot angle; determine a position differential for the actuator piston, corresponding to the pivot differential of the pivot assembly; control the EHSV to move the actuator piston by the position differential; and determine, from the LVDT, that the actuator piston moved by the position differential.
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