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公开(公告)号：US10473164B2
公开(公告)日：2019-11-12
申请号：US15202217
申请日：2016-07-05
Applicant: Hamilton Sundstrand Corporation
Inventor： Matthew Allen Slayter , Richard Alan Davis , Benjamin T. Harder , James Vandung Nguyen , Paul F. Fox , Jeffrey Todd Roberts , Jeff A. Brown , Brian McMasters , Dwayne Leon Wilson , Daniel Richard Walker
Abstract: A motoring system for a gas turbine engine having: a reduction gear train having an input and an output; an electric motor operably connected to the input; a clutch operably connected to the output, the clutch in operation engages and disengages the reduction gear train; and a mechanical shaft fuse operably connecting the output to the clutch, the mechanical shaft fuse in operation shears when torque on the mechanical shaft fuse is greater than or equal to a selected value. The mechanical shaft fuse includes a plurality of through holes.
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公开(公告)号：US10422284B2
公开(公告)日：2019-09-24
申请号：US15202155
申请日：2016-07-05
Applicant: Hamilton Sundstrand Corporation
Inventor： Matthew Allen Slayter , Richard Alan Davis , Paul F. Fox , Jeffrey Todd Roberts , Jeff A. Brown , James Vandung Nguyen , Benjamin T. Harder , Dwayne Leon Wilson , Brian McMasters , Daniel Richard Walker
Abstract: A motoring system for a gas turbine engine having: a reduction gear train having an input and output; a motor operably connected to the input; a clutch operably connected to the output, the clutch in operation engages and disengages the reduction gear train; and a pinned mechanical fuse operably connecting the output to the clutch, the pinned mechanical fuse having at least one shear pin. The pinned mechanical fuse having: an outer sleeve having a first section, second section, inner chamber, outer wall, and at least one through hole connecting the inner chamber to the outer wall within the first section; and an inner sleeve having a first portion, second portion, outer surface, and at least one blind hole located in the outer surface within the second portion. The second portion being located within the inner chamber and operably connected to the outer sleeve through at least one shear pin.
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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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公开(公告)号：US10323648B2
公开(公告)日：2019-06-18
申请号：US15482278
申请日：2017-04-07
Applicant: Hamilton Sundstrand Corporation
Inventor： Adrian L. Stoicescu , Benjamin T. Harder
Abstract: A boost pump includes a boost cover and a main pump housing engaged opposite to the boost cover with an impeller rotatably engaged between the boost cover and main pump housing. The impeller includes an inducer section comprising a hub including a plurality of axial blades extended therefrom, each of the plurality of blades including a root, a tip, first and second surfaces, wherein the each of the first and second surfaces is defined in TABLE 1. The impeller includes an impeller section comprising a shroud extending from the hub including a plurality of radial blades extended therefrom. Each of the plurality of blades can include including a root, a tip, and opposed pressure and suction sides extending from the root to the tip, wherein the each of the pressure and suction sides is a surface defined in at least one of TABLES 2-4.
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公开(公告)号：US20180291921A1
公开(公告)日：2018-10-11
申请号：US15483503
申请日：2017-04-10
Applicant: Hamilton Sundstrand Corporation
Inventor： Adrian L. Stoicescu , Benjamin T. Harder
CPC classification number: F04D29/4293 , F02C7/22 , F02C7/236 , F04D7/02 , F04D29/426 , F04D29/445 , F05D2230/10 , F05D2250/74 , Y02T50/673
Abstract: A boost pump includes a housing cover and a pump housing engaged opposite to the housing cover. Volute passages are defined between the housing cover and the pump housing. The volute passages include a circumferentially extending volute defining a plurality of cross sections defined in a housing including the pump housing and the housing cover. The plurality of surfaces are defined as a set of dimensions set out in at least one of TABLES 1 through 3.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230204029A1
公开(公告)日：2023-06-29
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: F02C9/30 , F04B49/065 , F04B49/12
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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公开(公告)号：US20220154600A1
公开(公告)日：2022-05-19
申请号：US17591412
申请日：2022-02-02
Applicant: Hamilton Sundstrand Corporation
Inventor： John T. Pech , Benjamin T. Harder
Abstract: A starter supplemental lubrication system for a gas turbine engine is provided. The starter supplemental lubrication system includes a pneumatic starter operable to drive rotation of a rotor shaft of a gas turbine engine through an accessory gearbox. The pneumatic starter is configured to receive a primary lubricant flow at a first rotational speed range and receive a supplemental lubricant flow at a second rotational speed range that is less than the first rotational speed range. The starter supplemental lubrication system also includes a supplemental lubricant pump operable to supply the supplemental lubricant flow at the second rotational speed range. The supplemental lubricant pump is internal to the pneumatic starter.
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公开(公告)号：US20180291919A1
公开(公告)日：2018-10-11
申请号：US15482278
申请日：2017-04-07
Applicant: Hamilton Sundstrand Corporation
Inventor： Adrian L. Stoicescu , Benjamin T. Harder
CPC classification number: F04D29/22 , F02C7/22 , F04D1/025 , F04D29/2277 , F04D29/242 , F04D29/426 , F05D2220/323 , F05D2250/74 , Y02T50/673
Abstract: A boost pump includes a boost cover and a main pump housing engaged opposite to the boost cover with an impeller rotatably engaged between the boost cover and main pump housing. The impeller includes an inducer section comprising a hub including a plurality of axial blades extended therefrom, each of the plurality of blades including a root, a tip, first and second surfaces, wherein the each of the first and second surfaces is defined in TABLE 1. The impeller includes an impeller section comprising a shroud extending from the hub including a plurality of radial blades extended therefrom. Each of the plurality of blades can include including a root, a tip, and opposed pressure and suction sides extending from the root to the tip, wherein the each of the pressure and suction sides is a surface defined in at least one of TABLES 2-4.
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公开(公告)号：US20180010648A1
公开(公告)日：2018-01-11
申请号：US15202217
申请日：2016-07-05
Applicant: Hamilton Sundstrand Corporation
Inventor： Matthew Allen Slayter , Richard Alan Davis , Benjamin T. Harder , James Vandung Nguyen , Paul F. Fox , Jeffrey Todd Roberts , Jeff A. Brown , Brian McMasters , Dwayne Leon Wilson , Daniel Richard Walker
CPC classification number: F16D9/08 , F01D15/12 , F01D25/36 , F02C7/268 , F02C7/275 , F02C7/32 , F05D2220/32 , F05D2260/311 , F05D2260/4023 , F05D2260/4031
Abstract: A motoring system for a gas turbine engine having: a reduction gear train having an input and an output; an electric motor operably connected to the input; a clutch operably connected to the output, the clutch in operation engages and disengages the reduction gear train; and a mechanical shaft fuse operably connecting the output to the clutch, the mechanical shaft fuse in operation shears when torque on the mechanical shaft fuse is greater than or equal to a selected value. The mechanical shaft fuse includes a plurality of through holes.
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公开(公告)号：US20180010523A1
公开(公告)日：2018-01-11
申请号：US15201841
申请日：2016-07-05
Applicant: Hamilton Sundstrand Corporation
Inventor： Benjamin T. Harder , Brian McMasters , James Vandung Nguyen , Dwayne Leon Wilson , Paul F. Fox , Richard Alan Davis , Richard R. Hergert , Jeffrey Todd Roberts , Jeff A. Brown , Daniel Richard Walker , Matthew Allen Slayter , William G. Sheridan
Abstract: According to an aspect, a system for a gas turbine engine includes a reduction gear train operable to drive rotation of a starter gear train that interfaces to an accessory gearbox of the gas turbine engine. The reduction gear train includes a starter interface gear that engages the starter gear train and a core-turning clutch operably connected to the starter interface gear. The reduction gear train also includes a geared rotary actuator including a primary planetary gear system, where the geared rotary actuator is operably connected to the core-turning clutch. The reduction gear train further includes a secondary planetary gear system operably connected to the primary planetary gear system and a core-turning input. The system also includes a mounting pad with an interface to couple a core-turning motor to the core-turning input of the reduction gear train.
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