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公开(公告)号：US11946420B1
公开(公告)日：2024-04-02
申请号：US18213053
申请日：2023-06-22
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Ryan Prescott Susca , Ryan Shook
Abstract: A fuel system includes a main pump assembly. The main pump assembly has a main fuel pump connected to an input line, a recirculation pump connected to the input line, and a fuel recirculation system. A recirculation control includes a first selector valve in fluid communication with an outlet line of the recirculation pump, with a recirculation return line connected to return fuel to the input line, and with an inter-valve line. The recirculation control includes a second selector valve in fluid communication with the inter-valve line, with a back-up line connecting the second selector valve to a main fuel control, and with a cooler recirculation line connected to supply the one or more coolers.
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公开(公告)号：US11859564B2
公开(公告)日：2024-01-02
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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公开(公告)号：US20230417236A1
公开(公告)日：2023-12-28
申请号：US17849877
申请日：2022-06-27
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , John M. Kassel , Mark W. Shoemaker
CPC classification number: F04B49/065 , F04B17/03 , F04B2203/0201 , F04B2203/0202 , F04B2203/0208 , F04B2205/05 , F04B2205/09 , F04B2207/70
Abstract: A flow system includes a pump, a motor connected to the pump that drives the pump and draws electrical energy and a sensor that measures the electrical energy drawn by the motor. The system also includes a control module for the flow system. The control module configured to perform a control module method that includes: receiving electrical data from the sensor; receiving operating characteristic data of the pump from one or more pump sensors; comparing the changes in the electrical data over time to the operating characteristic data; and determining a health of the pump on the comparison of changes in the electrical data over time to operating characteristic data.
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公开(公告)号：US20230175503A1
公开(公告)日：2023-06-08
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 , F04C13/00 , F02C7/22 , 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：US11519407B2
公开(公告)日：2022-12-06
申请号：US17078241
申请日：2020-10-23
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Timothy J. Franckowiak
IPC: F03C2/00 , F03C4/00 , F04C2/00 , F04C11/00 , F04C13/00 , F04C2/344 , F04C2/348 , F04C14/22 , F04C23/00
Abstract: A dual vane pump system includes first and second vane pumps having first and second rotors with a plurality of vanes moving radially inwardly and outwardly of the first and second rotors, and into contact with an inner surface of the first and second outer liners. A first pre-pressurization passage connects a first pump inlet in the first pump that is at discharge pressure to a second pump outlet in the second pump which is upstream of the second discharge opening. There is a coupling connecting the first and second rotors for rotation together. The pre-pressurization passage extending through the bearing.
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Patent Agency Ranking
公开(公告)号：US20220196013A1
公开(公告)日：2022-06-23
申请号：US17132534
申请日：2020-12-23
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Weishun William Ni , John M. Kassel
IPC: F04C2/08
Abstract: A gear for a pump includes a gear body defining a root circle, and a plurality of gear teeth extending from the gear body radially outwardly of the root circle. Each of the plurality of gear teeth have a tip portion, a leading edge, a trailing edge, a circular thickness defined between the leading edge and the trailing edge, a first radially outwardly facing surface and a second radially outwardly facing surface. At least one of the first radially outwardly facing surface and the second radially outwardly facing surface includes a chamfered portion that extends from the leading edge toward the trailing edge across a portion of the circular thickness.
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公开(公告)号：US20210262899A1
公开(公告)日：2021-08-26
申请号：US16798012
申请日：2020-02-21
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Charles E. Reuter , Adrian L. Stoicescu
Abstract: A method can include receiving, at a control module, first pump characteristic data from a data source associated with a pump, sensing second pump characteristic data from a flow system using one or more sensors, comparing the first pump characteristic data to the second pump characteristic data sensed in the flow system, and determining a health of the pump based on the comparison of the first pump characteristic data to the second pump characteristic data.
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公开(公告)号：US20200256256A1
公开(公告)日：2020-08-13
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：US20250101977A1
公开(公告)日：2025-03-27
申请号：US18371770
申请日：2023-09-22
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , John M. Kassel
IPC: F04C29/12 , F04C2/344 , F04C18/344
Abstract: A vane pump system includes a kidney port plate engaged at an axial end of a rotor and liner. The port kidney plate includes an over vane inlet port configured to be circumferentially aligned with an inlet arc segment of a circumferential cam surface of the liner for ingress of fluid to a plurality of vanes, and an over vane discharge port configured to be circumferentially aligned with a discharge arc segment of the circumferential cam surface for discharging pressurized fluid from the plurality of vanes. The kidney port plate includes at least six kidney ports radially inward from the over vane inlet port and the over vane discharge port. The kidney ports are circumferentially spaced apart from one another. The kidney ports are configured to be radially aligned with vane slots of the rotor for pressure balancing across over vane and under vane ends of the plurality of vanes.
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公开(公告)号：US20240183345A1
公开(公告)日：2024-06-06
申请号：US18075199
申请日：2022-12-05
Applicant: Hamilton Sundstrand Corporation
Inventor： Edward W. Goy , Zachary Allen Ray Le Duc , Mark W. Shoemaker , Mason Rosenberg
CPC classification number: F04B9/02 , F04B19/22 , F04B53/14 , F04B53/144
Abstract: A variable displacement pump system can include a piston sleeve having at least a first inner diameter portion and a second in inner diameter portion and an actuator piston configured to be disposed within the piston sleeve. The actuator piston can have a first piston portion having a first outer diameter, and a second piston portion having a second outer diameter. The first outer diameter can be different than the second outer diameter. The first piston portion can be configured to seal to the first inner diameter portion of the piston sleeve. The second piston portion of the actuator piston can be configured to seal to the second inner diameter portion of the piston sleeve.
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