公开(公告)号：US20210301735A1

公开(公告)日：2021-09-30

申请号：US17205435

申请日：2021-03-18

Applicant: Hamilton Sundstrand Corporation

Inventor： Matej Rutar ,  Francis P. Marocchini

IPC: F02C9/26 ,  F02C7/228

Abstract: A system includes a flow inlet conduit. A primary conduit branches from the flow inlet conduit for delivering flow to a set of primary nozzles. An equalization bypass valve (EBV) connects between the flow inlet conduit and a secondary conduit for delivering flow to a set of secondary nozzles. The EBV is connected to be controlled to apportion flow from the flow inlet conduit to the secondary conduit. A secondary equalization valve (SEV) connects between the flow inlet conduit and the secondary conduit. The SEV is connected to be controlled by drain pressure (PD) to apportion flow from the flow inlet conduit to the secondary conduit.

公开(公告)号：US20200378444A1

公开(公告)日：2020-12-03

申请号：US16428738

申请日：2019-05-31

Applicant: Hamilton Sundstrand Corporation

Inventor： Francis P. Marocchini ,  Glenn Gradischer

IPC: F16D1/02 ,  F02M35/10 ,  F16C3/02

Abstract: A combination shaft including a first shaft including an axial protrusion including a first circumferential surface defining a first outer diameter and a second circumferential surface defining a second outer diameter, and a second shaft having a cavity therein configured to receive at least a portion of the first shaft and being configured to drive an air valve, having internal threads, and defining at least a first inner radial surface having a first inner diameter and a second inner radial surface having second inner diameter, the internal threads being engagable with the external threads to prevent axial movement between the first shaft and the second shaft and the first inner radial surface being engagable with the first outer radial surface and the second inner radial surface being engagable with the second outer radial surface to provide radial centering of the first shaft to the second shaft.

公开(公告)号：US10450961B2

公开(公告)日：2019-10-22

申请号：US15186041

申请日：2016-06-17

Applicant: Hamilton Sundstrand Corporation

Inventor： Francis P. Marocchini ,  Aaron F. Rickis ,  Elise N. Zimmerman ,  Gerald P. Dyer

IPC: F02C7/232 ,  F01D21/02 ,  F02C7/22 ,  F02C9/26 ,  F02C9/36 ,  F02C9/46

Abstract: A gas turbine engine shut-down system includes a pump configured to draw a flow of fuel from a source, a fuel nozzle configured to receive the flow of fuel from the pump, a fuel shut-off valve in fluid communication with the pump, a recirculation circuit for circulating excess fuel to a location upstream of the pump; a solenoid valve in communication with the pump and the recirculation circuit; and a fuel-bypass valve. The fuel-bypass valve includes a first opening connected to the fuel pump, a second opening connected to the fuel shut-off valve, a third opening connected to the recirculation circuit, a fourth opening connected to the solenoid valve, and a piston disposed within the fuel-bypass valve and movable between a plurality of positions.

公开(公告)号：US20190195092A1

公开(公告)日：2019-06-27

申请号：US15852803

申请日：2017-12-22

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron F. Rickis ,  Elise N. Zimmerman ,  Gary R. Marconi ,  Glenn Gradischer ,  August M. Coretto ,  Francis P. Marocchini

IPC: F01D25/28

CPC classification number: F01D25/28 ,  F02C7/32 ,  F05D2220/32 ,  F05D2230/64 ,  F05D2260/30

Abstract: A mount according to an example of the present disclosure includes a locating pin, a load pin, a fastener, the fastener configured to retain a component on at least one of the locating pin and the load pin, the fastener including a bolt, a mounting boss and a spring, the spring allowing the mounting boss to move with respect to the bolt, and wherein the bolt is held captive in the mounting boss with a captive feature. A gas turbine engine and a method of mounting a component are also disclosed.

公开(公告)号：US20180363490A1

公开(公告)日：2018-12-20

申请号：US16037708

申请日：2018-07-17

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Gregory Di Vincenzo ,  Francis P. Marocchini ,  Bhupindar Singh

IPC: F01D17/02 ,  F01D17/20 ,  F01D21/00 ,  F01D17/14

CPC classification number: F01D17/02 ,  F01D17/14 ,  F01D17/20 ,  F01D21/003

Abstract: A measuring system for sensing vane positions that comprises a turbine, a target, and a sensor. The turbine includes a plurality of articulating vanes, with each vane being coupled to a sync ring that is configured to position the plurality of articulating vanes in accordance with a degree of rotation by the sync ring. The target is coupled to a first position of the turbine within a first region that is associated with a first vane of the plurality of articulating vanes. The sensor is coupled via a bracket to a second position of the turbine within the first region. The sensor is configured to detect an orientation of the target that corresponds to a vane position of the first vane.

公开(公告)号：US20180355984A1

公开(公告)日：2018-12-13

申请号：US15617480

申请日：2017-06-08

Applicant: Hamilton Sundstrand Corporation

Inventor： August M. Coretto ,  Aaron F. Rickis ,  Francis P. Marocchini ,  Glenn Gradischer ,  Richard H. Bostiga ,  Ryan Susca

IPC: F16K11/07 ,  F16K3/316

Abstract: A transfer valve includes a spool comprising a first circumferential flow channel at a first axial position of the spool and a second circumferential flow channel at a second axial position of the spool. The first circumferential flow channel and the second circumferential flow channel have different circumferential positions and are defined only partially circumferentially, and a sleeve disposed over the spool. The sleeve includes at least three flow windows defined through the sleeve at an axial position of the sleeve, each flow window having different circumferential positions on the sleeve. The spool is configured to translate within the sleeve between a first position and a second position. The first circumferential flow channel of the spool is configured to fluidly connect a first plurality of the at least three windows in the first position, and the second circumferential flow channel is configured to connect a second plurality of the at least three windows in the second position, wherein the first plurality of windows is different by at least one window from the second plurality of windows.

公开(公告)号：US10088068B2

公开(公告)日：2018-10-02

申请号：US14862553

申请日：2015-09-23

Applicant: Hamilton Sundstrand Corporation

Inventor： Francis P. Marocchini ,  Aaron F. Rickis ,  Elise N. Zimmerman

IPC: F16F1/18 ,  H01H5/30 ,  F16K31/06 ,  F16K27/02

Abstract: A flexure includes a flexure body with an inner ring defining a main axis and an outer ring extending about the inner ring that is outboard of the inner ring with respect to the main axis. One or more flexure members having respective lengths that are greater than a radial offset distance defined between the inner ring and the outer ring connects the inner ring to the outer ring. A valve includes a valve member connected to a valve body by the flexure.

公开(公告)号：US10082088B2

公开(公告)日：2018-09-25

申请号：US14596272

申请日：2015-01-14

Applicant: Hamilton Sundstrand Corporation

Inventor： Francis P. Marocchini ,  Elise N. Zimmerman

IPC: F02C7/232 ,  F02C9/32 ,  F16K31/126 ,  F02C7/22 ,  F02C9/26 ,  F16K1/54 ,  F23R3/28 ,  F23K5/14 ,  F23N1/00

CPC classification number: F02C9/32 ,  F02C7/22 ,  F02C7/232 ,  F02C9/263 ,  F16K1/54 ,  F16K31/126 ,  F23K5/147 ,  F23N1/005 ,  F23R3/28

Abstract: A flexure for a metering valve has a flexure body defining a center axis to be aligned with a fuel nozzle. The flexure body includes an outermost peripheral surface surrounding the center axis. A retaining feature is formed in the flexure body and is configured to mount the flexure body to a metering valve component. The retaining feature is located radially between the center axis and the outmost peripheral surface. A metering valve is also disclosed.

公开(公告)号：US09739203B2

公开(公告)日：2017-08-22

申请号：US14278888

申请日：2014-05-15

Applicant: Hamilton Sundstrand Corporation

Inventor： Francis P. Marocchini ,  Russell P. Rourke, Jr.

IPC: F02C7/232 ,  F02C9/26 ,  F16K31/06 ,  F02M59/34 ,  F02M63/00 ,  F02M59/36

CPC classification number: F02C7/232 ,  F02C9/263 ,  F02M59/34 ,  F02M59/366 ,  F02M63/0015 ,  F02M63/004 ,  F02M63/0078 ,  F16K31/0651 ,  F16K31/0693

Abstract: A fuel metering valve includes a main flow path extending axially between an inlet and an outlet. Also included is a plunger disposed around a portion of a plunger guide, the plunger and the plunger guide configured to translate between an open position and a closed position to selectively distribute a fuel flowing through the main flow path to the outlet of the fuel metering valve. Further included is a solenoid coil disposed between a solenoid outer body and a solenoid inner body, the solenoid coil configured to magnetically attract the plunger to the open position. Yet further included is a secondary flow path for routing a stagnant volume of fuel upon translation of the plunger from the closed position to the open position.

公开(公告)号：US20170198668A1

公开(公告)日：2017-07-13

申请号：US14993476

申请日：2016-01-12

Applicant: Hamilton Sundstrand Corporation

Inventor： Aaron F. Rickis ,  Elise N. Zimmerman ,  Glenn Gradischer ,  Francis P. Marocchini

IPC: F02M37/00 ,  F16K17/04 ,  F02M63/00

CPC classification number: F02M37/0023 ,  F02C7/232 ,  F02M63/005 ,  F02M2200/8015 ,  F16K17/0406 ,  F16K17/042 ,  F16K27/0209 ,  F16K27/0245

Abstract: A fuel control system includes a high pressure relief valve fluidly connected to a fuel pump outlet. The high pressure relief valve includes a closure and a nozzle. The closure has an opening and a locking notch defined by a circumferential wall. The nozzle has a base portion that is received within the opening and has a rim extending between a first surface and a second surface. The nozzle has a tab extending from the rim that is received within the locking notch.