公开(公告)号：US20230358174A1

公开(公告)日：2023-11-09

申请号：US17738141

申请日：2022-05-06

Applicant: Hamilton Sundstrand Corporation

Inventor： Adrian L. Stoicescu ,  Donna Laboda ,  Edward W. Goy ,  Zachary Allen Ray LeDuc ,  Todd Haugsjaahabink ,  John M. Kassel

IPC: F02C7/236 ,  F02C9/30 ,  B64D37/00

CPC classification number: F02C7/236 ,  F02C9/30 ,  B64D37/00 ,  F05D2220/323

Abstract: A fuel pumping system of an aircraft, having a first boost pump; a main pump; a main pump feed conduit fluidly coupled to the main pump and configured to receive fuel after it has passed through the first boost pump; a main pump discharge conduit fluidly coupled to the main pump; an ejector fluidly coupled to the main pump feed conduit, between the first boost pump and the main pump; a bypass conduit fluidly coupled to the main pump discharge conduit and the ejector such that the bypass conduit is configured to provide fluid to the ejector drawn from the output of the first boost pump into the main pump; and a backpressure regulating valve fluidly coupled to the bypass conduit, and configured to transition to an open state when pressure in the main pump discharge conduit is above a threshold.

公开(公告)号：US11662026B2

公开(公告)日：2023-05-30

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

CPC classification number: 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.

公开(公告)号：US20230132118A1

公开(公告)日：2023-04-27

申请号：US17509996

申请日：2021-10-25

Applicant: Hamilton Sundstrand Corporation

Inventor： Edward W. Goy ,  Michael R. Blewett

IPC: F04D13/14 ,  F04D13/02

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.

公开(公告)号：US11624360B2

公开(公告)日：2023-04-11

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 ,  F04C2/18

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.

公开(公告)号：US11078951B2

公开(公告)日：2021-08-03

申请号：US16416830

申请日：2019-05-20

Applicant: Hamilton Sundstrand Corporation

Inventor： Yiwei Jiang ,  Michael R. Blewett ,  Edward W. Goy

IPC: F16B39/12 ,  F16B39/16 ,  F01D25/28 ,  F16B41/00

Abstract: An assembly for a coupling together rotatable components according to an example of the present disclosure includes, among other things, a rotor shaft extending along a centerline axis, the rotor shaft defining an inner bore extending from an axial end of the rotor shaft, a gear mounted on an outer diameter of the rotor shaft, a lock nut threadedly engaged with the outer diameter of the rotor shaft such that the lock nut abuts against an axial end face of the gear, and a retainer including a step portion extending from a head portion and including a projection portion extending from the step portion. The projection portion is insertable into the inner bore to bias the lock nut against the axial end face of the gear, and the step portion is dimensioned to establish an interference fit with the rotor shaft along the inner bore. A starter assembly and a method of assembly are also disclosed.

公开(公告)号：US20210231118A1

公开(公告)日：2021-07-29

申请号：US16751973

申请日：2020-01-24

Applicant: Hamilton Sundstrand Corporation

Inventor： Erin E. Berry ,  Edward W. Goy

IPC: F04B51/00 ,  G01L9/04

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.

公开(公告)号：US20190090389A1

公开(公告)日：2019-03-21

申请号：US15707191

申请日：2017-09-18

Applicant: Hamilton Sundstrand Corporation

Inventor： Edward W. Goy ,  Ryan Shook

IPC: H05K9/00

Abstract: Embodiments include an apparatus and techniques for operating an electromagnetic cartridge seal. Embodiments include operating a cartridge seal in one of a plurality of modes, and receiving a signal at a force applying mechanism of the cartridge seal, the force applying mechanism being coupled to a primary sealing component of the cartridge seal. Embodiments also include controlling the force applying mechanism based at least in part on the received signal.

公开(公告)号：US10047606B2

公开(公告)日：2018-08-14

申请号：US14804969

申请日：2015-07-21

Applicant: Hamilton Sundstrand Corporation

Inventor： Joseph Wetch ,  Weishun Ni ,  Edward W. Goy

IPC: F01C21/08 ,  F04C2/34 ,  F04C18/24 ,  F04C2/344

Abstract: A vane pump is disclosed that includes a plurality of vanes and radial slots configured to provide a gap between the vane and the radial slot such that the vane has a different angular position relative to the direction of rotation in a radially extended position compared to an angular position in a radially-retracted position. The different angular positions provide different orientation of the arcuate surface of the vane tip portion with respect to the cam body inner surface, thus providing different fluid stop points on the vane tip portion arcuate surface.

公开(公告)号：US20250075699A1

公开(公告)日：2025-03-06

申请号：US18238919

申请日：2023-08-28

Applicant: Hamilton Sundstrand Corporation

Inventor： Zachary Allen Ray Le Duc ,  Edward W. Goy ,  Joseph Wetch

IPC: F04C15/00 ,  F04C2/344

Abstract: In accordance with at least one aspect of this disclosure, a pump comprises a pump rotor having a plurality of vanes therein configured to pump a fluid from a pump inlet to a pump outlet through rotation of the rotor about a rotational axis, an input shaft operatively connected to drive rotation of the rotor, and a bearing operatively connected to the input shaft configured to facilitate rotation of the input shaft. A shaft extender is operatively connected radially between the input shaft and the bearing. The input shaft includes a conical portion and the shaft extender includes a conical portion complementary to the conical portion of the input shaft. The shaft extender interfaces with at least the conical portion of the input shaft, when on the input shaft.

公开(公告)号：US20240392725A1

公开(公告)日：2024-11-28

申请号：US18202800

申请日：2023-05-26

Applicant: Hamilton Sundstrand Corporation

Inventor： Edward W. Goy ,  Ryan Prescott Susca ,  Ryan Shook

IPC: F02C7/236 ,  B64D37/34 ,  F02C7/22 ,  F02C9/36

Abstract: A fuel system can include a main pump assembly having a main fuel pump connected to an input line and configured to pump fuel to a main fuel control via a main fuel control line, a recirculation pump connected to the input line, and a fuel recirculation system connected to the recirculation pump and upstream of the main fuel control. The fuel recirculation system can be configured to select a mode from a plurality of modes. The plurality of modes can include a recirculation mode and a backup mode. The fuel recirculation system can be configured to recirculate fuel from the recirculation pump to a tank through one or more coolers in the recirculation mode, and to provide fuel to the main fuel control in the backup mode.