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公开(公告)号：US20240401591A1
公开(公告)日：2024-12-05
申请号：US18204262
申请日：2023-05-31
Applicant: Hamilton Sundstrand Corporation
Inventor： Zachary Allen Ray Le Duc , Edward W. Goy
Abstract: In accordance with at least one aspect of this disclosure, a system includes a rotor configured to rotate about a rotor axis within a pump housing. In embodiments, the rotor includes, a first end face configured to interface with a stationary port plate, a plurality of vane slots defined in the rotor arranged circumferentially about the rotor axis configured to accept a respective vane therein, and a plurality of lands between each vane slot, wherein each land includes a portion of the first end face. The rotor also includes, a lubrication pad defined in the first end face of at least one land between neighboring vane slots such that the lubrication pad is fed by the neighboring vane slots to induce buildup of a lubrication film between the first end face and the stationary port plate in the lubrication pad.
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公开(公告)号：US12092108B2
公开(公告)日：2024-09-17
申请号：US17751086
申请日：2022-05-23
Applicant: Hamilton Sundstrand Corporation
Inventor： Zachary Allen Ray LeDuc , Edward W. Goy
IPC: F04C2/18
CPC classification number: F04C2/18 , F04C2240/50 , F04C2240/54 , F04C2240/56 , F04C2240/80 , F04C2240/805
Abstract: A bearing assembly includes a first gear shaft aligned with a first axis and a second gear shaft aligned with a second axis. The second axis is oriented parallel to the first axis. A first bearing is supported on the first gear shaft and a second bearing is supported on the second gear shaft. A coupling mechanism extends between and radially clamps the first bearing to the second bearing. The coupling mechanism is operable to restrict relative radial movement between the first bearing and the second bearing.
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公开(公告)号：US11988209B2
公开(公告)日：2024-05-21
申请号：US17541667
申请日：2021-12-03
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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公开(公告)号：US20230374985A1
公开(公告)日：2023-11-23
申请号：US17751086
申请日：2022-05-23
Applicant: Hamilton Sundstrand Corporation
Inventor： Zachary Allen Ray LeDuc , Edward W. Goy
IPC: F04C2/18
CPC classification number: F04C2/18 , F04C2240/54 , F04C2240/56
Abstract: A bearing assembly includes a first gear shaft aligned with a first axis and a second gear shaft aligned with a second axis. The second axis is oriented parallel to the first axis. A first bearing is supported on the first gear shaft and a second bearing is supported on the second gear shaft. A coupling mechanism extends between and radially clamps the first bearing to the second bearing. The coupling mechanism is operable to restrict relative radial movement between the first bearing and the second bearing.
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公开(公告)号：US20230265800A1
公开(公告)日：2023-08-24
申请号：US17719060
申请日：2022-04-12
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Ryan Shook , Benjamin T. Harder
Abstract: A fuel supply system includes a pump to be connected to a fuel tank. A metering valve is downstream of the pump. A control is programmed to control at least one of the pump and metering valve. The control is operable to take in a flow demand signal and a fuel pressure signal from a controller associated with a gas turbine engine. The flow demand signal is indicative of a desired flow volume and the fuel pressure signal is indicative of a desired fuel pressure. Operation conditions are identified for the at least one of said pump and the metering valve. A gas turbine engine and fuel supply system is also disclosed.
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Patent Agency Ranking
公开(公告)号：US11519404B2
公开(公告)日：2022-12-06
申请号：US16751973
申请日：2020-01-24
Applicant: Hamilton Sundstrand Corporation
Inventor： Erin E. Berry , Edward W. Goy
Abstract: Apparatus and associated methods relate to monitoring health of a hydraulic system. A method includes monitoring pressure within the system and determining when a potential fatigue condition may occur based on counting the number of times pressure in the system has exceeded the at least one threshold. In some embodiments, strain cycle data is calculated based on a time sequence of signals generated by a hydraulic fitting, which is indicative of strain of the hydraulic fitting. An output signal indicative of the fatigue condition determined is generated. In some embodiments, the strain data includes a number of strain cycles that the time sequence of signals crosses from below a strain threshold to above the strain threshold.
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公开(公告)号：US10975772B2
公开(公告)日：2021-04-13
申请号：US16269956
申请日：2019-02-07
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Yiwei Jiang , James Vandung Nguyen , Edward W. Goy
Abstract: A starter for a gas turbine engine includes a rotor shaft rotatable about an axis and includes an inner bore extending from an axial end of the rotor shaft with respect to the axis. A sun gear is on the rotor shaft. A lock nut is received against an axial end face of the sun gear and threadedly engaged with an outer diameter of the rotor shaft. A retainer is positioned to bias the nut against the axial end face and includes a projection portion threadedly engaged with the rotor shaft in the inner bore. A bolt through the projection portion is threadedly engaged with the rotor shaft.
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公开(公告)号：US10858939B2
公开(公告)日：2020-12-08
申请号：US16041621
申请日：2018-07-20
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Joseph Wetch , Ryszard Czeslaw Wlaznik , Ernest W. Samotshozo
Abstract: A gear pump bearing can include a body sized and shaped to occupy a portion of a pump housing cavity such that a clearance is formed between the body and a pump housing. The gear pump bearing can also include at least one clearance consuming feature extending from an outer surface of the body configured to reduce motion of the body within the pump housing cavity.
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公开(公告)号：US20180340531A1
公开(公告)日：2018-11-29
申请号：US15602364
申请日：2017-05-23
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Weishun Willaim Ni , Dennis L. Kaderabek , Edward W. Goy , Dennis A. Erickson , David Lauriat
IPC: F04B49/12 , F04B15/00 , F04B19/02 , F04B23/02 , F04B53/16 , F04B53/14 , F04B9/02 , F04B53/10 , F02M37/04 , F02M37/06 , B64D37/00
Abstract: A variable displacement fuel pump includes a pump body, a barrel disposed within the pump body, at least one piston disposed in the barrel, wherein the at least one piston is configured to reciprocate within the barrel, and an electronic control actuator operatively coupled to the barrel, wherein the control actuator rotates the barrel to a selected barrel angle relative to the at least one piston in response to a desired fuel flow.
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公开(公告)号：US11971040B2
公开(公告)日：2024-04-30
申请号：US17509996
申请日：2021-10-25
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Michael R. Blewett
CPC classification number: F04D13/14 , F04D13/021 , F05D2220/32 , F05D2240/515 , F05D2240/55
Abstract: A fuel system is disclosed for a gas turbine engine, which includes an augmentor pump having an inlet communicating with a fuel supply source and a discharge communicating with an augmentation stage of the engine, wherein the augmentor pump is connected to an accessory drive gearbox mounted to the engine, and a high speed clutch for selectively engaging and disengaging the augmentor pump and the accessory drive gearbox.
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