公开(公告)号：US10823308B1

公开(公告)日：2020-11-03

申请号：US16447784

申请日：2019-06-20

Applicant: Hamilton Sundstrand Corporation

Inventor： Robert DeFelice ,  Peter J. Dowd

IPC: F16K31/50 ,  G05D7/01

Abstract: A controller for an inline valve includes a manifold seating a set screw and has a reference fluid port, a control fluid port, and an actuator fluid port. A selector is movable within the manifold between a first position and a second position, the reference fluid port in fluid communication with the actuator fluid port in the first position, the control fluid port in fluid communication with the actuator fluid port in the second position. A biasing member is arranged between the selector and the set screw and urges the selector towards the first position. The set screw extends through an exterior of the manifold for adjustment of differential in pressures at the reference fluid port and the control fluid port responsive to which the selector moves between the first position and the second position. Inline valves and methods of controlling fluid flow through inline valves are also described.

公开(公告)号：US20200040902A1

公开(公告)日：2020-02-06

申请号：US16054889

申请日：2018-08-03

Applicant: Hamilton Sundstrand Corporation

Inventor： Robert DeFelice ,  David J. Zawilinski ,  Scott W. Simpson

IPC: F04D27/02 ,  F01D17/14 ,  F01D17/10 ,  F02C9/18

Abstract: A bleed valve includes a housing with an inlet coupled to an outlet by a duct. A guide tube is fixed within the housing between the inlet and the outlet. A piston with a piston orifice is slideably supported on the guide tube and movable between an open position and a closed position. The duct fluidly couples the inlet to the outlet in the open position, the duct fluidly separates the inlet from the outlet in the closed position, and the piston orifice fluidly couples the inlet with the outlet in the open position and the closed position to move piston between the open position and the closed position according to differential in pressure between the inlet and the outlet of the bleed valve. Compressors, gas turbine engines, and methods of controlling fluid flow are also described.

公开(公告)号：US10513977B2

公开(公告)日：2019-12-24

申请号：US15913023

申请日：2018-03-06

Applicant: Hamilton Sundstrand Corporation

Inventor： Robert DeFelice ,  Scott W. Simpson ,  Josh Kamp

IPC: F16K1/12 ,  F02C6/08 ,  F01D17/10 ,  F04D27/02 ,  F02C7/26 ,  F02C9/52 ,  F16K15/02 ,  F16K21/04

Abstract: A valve assembly includes a piston housing inside a flow duct between an inlet and an outlet so as to form an annular flow passage between the flow duct and the piston housing. The piston housing is axially aligned with a center axis of the flow duct. A piston is inside the piston housing and is configured to extend downstream of the piston housing in a closed position. A spring biases the piston to the open position. A fluid chamber is between the piston and an upstream end of the piston housing. A control opening extends through the upstream end of the piston housing and fluidically communicates with the flow duct and the fluid chamber. A control piston and a control spring are inside the piston housing. The control spring biases the control piston toward a first position that obstructs the control opening.

公开(公告)号：US10473225B2

公开(公告)日：2019-11-12

申请号：US15939855

申请日：2018-03-29

Applicant: Hamilton Sundstrand Corporation

Inventor： Robert DeFelice ,  Scott W. Simpson

IPC: F16K1/12 ,  F16K17/10 ,  F16K17/04 ,  F16K31/122 ,  G05D7/01

Abstract: A passive in-line valve configured to be actuated without an external control includes a valve housing defining an inlet, an outlet, and a flow path between the inlet and the outlet and a piston housing extending inwardly from the housing. The valve includes a valve piston movably disposed within the piston housing, the valve piston including an upstream side and a downstream side. The valve also includes a control mechanism disposed at least partially within the housing and configured to port outlet static pressure to the upstream cavity in a first state such that pressure is equalized on the valve piston.

公开(公告)号：US10436337B2

公开(公告)日：2019-10-08

申请号：US15383638

申请日：2016-12-19

Applicant: Hamilton Sundstrand Corporation

Inventor： Robert DeFelice

IPC: F16K17/04 ,  F16K27/02

Abstract: A pressure relief valve controller (PRVC) includes a housing having a spring, a spring seat connected to the spring, a piston, and a portion of which is disposed between the spring seat and the piston, wherein one or more grooves and/or protrusions are disposed on at least one of the spring seat or the piston. The diaphragm can conform to the one or more grooves of the spring seat thus preventing diaphragm rupture due to excess pressure without affecting calibrations of current PRVCs.

公开(公告)号：US20180172170A1

公开(公告)日：2018-06-21

申请号：US15383638

申请日：2016-12-19

Applicant: Hamilton Sundstrand Corporation

Inventor： Robert DeFelice

IPC: F16K17/04 ,  F16K27/02

CPC classification number: F16K17/0453 ,  F16K17/04 ,  F16K27/02

Abstract: A pressure relief valve controller (PRVC) includes a housing having a spring, a spring seat connected to the spring, a piston, and a portion of which is disposed between the spring seat and the piston, wherein one or more grooves and/or protrusions are disposed on at least one of the spring seat or the piston. The diaphragm can conform to the one or more grooves of the spring seat thus preventing diaphragm rupture due to excess pressure without affecting calibrations of current PRVCs.