公开(公告)号：US12085169B2

公开(公告)日：2024-09-10

申请号：US17482524

申请日：2021-09-23

Applicant: Flowserve Pte. Ltd.

Inventor： Glenn Robert Owens, Jr. ,  Daniel A. Nelson

IPC: F16J15/06 ,  F16J15/08

CPC classification number: F16J15/0806 ,  F16J15/062 ,  F16J15/0887

Abstract: A pressure retained gasket seal provides enhanced resistance to hydraulic unloading by including a notch formed in a rear face of the gasket groove, thereby reducing intrusion of process fluid behind the gasket and improving hydraulic retention of the gasket seal. Embodiments increase the process fluid pressure limit of the gasket seal by a factor of two or three compared to gasket seals of the prior art. In embodiments, the gasket groove has a dovetail cross-section, thereby increasing resistance to process fluid pressure by requiring compression of the gasket before it can be dislodged from the groove. Embodiments form the gasket from flexible graphite, which can be initially shaped as an annulus and then forced by an applied load into the gasket groove in conformance with the notch. Embodiments include compressing the graphite to within 50% or even 70% of its maximum density during installation thereof.

公开(公告)号：US11828386B1

公开(公告)日：2023-11-28

申请号：US17751739

申请日：2022-05-24

Applicant: FLOWSERVE PTE. LTD.

Inventor： Aryoso Nirmolo ,  Péter Tóth ,  András Tomor ,  Chris Brydon ,  Chris Shages ,  Larry Ray

IPC: F16K5/06

CPC classification number: F16K5/0605

Abstract: Valve assemblies, systems, and methods may include at least one purging assembly comprising at least one purge port extending through a valve body or housing in order to supply a purge fluid into the valve body or housing. The at least one purge port is positioned on the valve body or housing to redirect a portion of the purge fluid as the purge fluid exits the at least one purge port.

公开(公告)号：US11774004B2

公开(公告)日：2023-10-03

申请号：US17485674

申请日：2021-09-27

Applicant: Flowserve Pte. Ltd.

Inventor： Paul Jeffrey Parish ,  Michael P. Nelson

IPC: F16K41/00 ,  F16K41/02 ,  F16K37/00

CPC classification number: F16K41/003 ,  F16K37/0091 ,  F16K41/02

Abstract: A valve configured to control a flow of a process fluid includes a pair of packing seals separated by a seal gap space along a linear valve stem of the valve, and a pressurization port that can be used to apply a pressurizing fluid, such as nitrogen gas, to the seal gap at a gap pressure that is higher than the process fluid pressure, thereby ensuring that any leakage past the packing seals will be of pressurizing fluid into the process fluid and/or into the environment, and that no process fluid will escape into the environment. The pressure or flow rate of the pressurizing fluid can be monitored to detect and quantify any pressurization fluid leakage past either of the packing seals, so that a maintenance action can be applied to the valve, such as re-tightening or replacing at least one of the packing seals, or replacing the valve.

公开(公告)号：US20250043870A1

公开(公告)日：2025-02-06

申请号：US18920351

申请日：2024-10-18

Applicant: FLOWSERVE PTE. LTD.

Inventor： Bruce J. Butler ,  Bradford B. Haines ,  Paul J. Parish

IPC: F16K5/04 ,  F16K47/04

Abstract: Fluid flow control devices and related systems and methods may include a body or housing and a plug at least partially positioned in the body or housing to define a flow path. In a position of the plug, the plug and the body or housing may collectively define a fluid flow path.

公开(公告)号：US12123519B2

公开(公告)日：2024-10-22

申请号：US18075928

申请日：2022-12-06

Applicant: Flowserve Pte Ltd.

Inventor： Bruce J. Butler ,  Bradford B. Haines ,  Paul J. Parish

IPC: F16K5/04 ,  F16K47/04

CPC classification number: F16K5/0407 ,  F16K5/0414 ,  F16K47/045 ,  Y10T137/0519

Abstract: Fluid flow control devices and related systems and methods may include a body or housing and a plug at least partially positioned in the body or housing to define a flow path. In a position of the plug, the plug and the body or housing may collectively define a fluid flow path.

公开(公告)号：US12018701B2

公开(公告)日：2024-06-25

申请号：US17031736

申请日：2020-09-24

Applicant: Flowserve Pte Ltd.

Inventor： Chris J Riché, Jr. ,  Scott Judge

IPC: F04F13/00 ,  F16C17/02 ,  F16C17/04 ,  F16C32/06

CPC classification number: F04F13/00 ,  F16C17/026 ,  F16C17/045 ,  F16C32/0644 ,  F16C32/0659

Abstract: Devices and method include relatively moving elements having one or more bearing surfaces defining a gap between the elements into which a fluid is received. At least one of the bearing surfaces comprises a varying topography to provide pressurized volumes of the fluid in order to define a hydraulic bearing to support at least one of the elements during movement.

公开(公告)号：US20240117820A1

公开(公告)日：2024-04-11

申请号：US18545378

申请日：2023-12-19

Applicant: FLOWSERVE PTE. LTD.

Inventor： Norman R. Le Doux ,  Jason Bandi ,  Neil Havrilla ,  David Olexson ,  Andreas Dreiss

IPC: F04F13/00 ,  F16K11/07 ,  F16K31/08

CPC classification number: F04F13/00 ,  F16K11/0716 ,  F16K31/084 ,  F15B3/00

Abstract: Pistons and related methods may be configured to separate fluids and to at least partially prohibit one fluid from traveling to one side of the piston from another side of the piston. Pressure exchange devices and systems may include such pistons.

公开(公告)号：US20240093792A1

公开(公告)日：2024-03-21

申请号：US18520106

申请日：2023-11-27

Applicant: FLOWSERVE PTE. LTD.

Inventor： Aryoso Nirmolo ,  Péter Tóth ,  András Tomor ,  Chris Brydon ,  Chris Shages ,  Larry Ray

IPC: F16K11/087 ,  F16K5/06

CPC classification number: F16K11/0873 ,  F16K5/0605

Abstract: Valve assemblies, systems, and methods may include at least one purging assembly comprising at least one purge port extending through a valve body or housing in order to supply a purge fluid into the valve body or housing. The at least one purge port is positioned on the valve body or housing to redirect a portion of the purge fluid as the purge fluid exits the at least one purge port.

公开(公告)号：US20230383850A1

公开(公告)日：2023-11-30

申请号：US17751739

申请日：2022-05-24

Applicant: FLOWSERVE PTE. LTD.

Inventor： Aryoso Nirmolo ,  Péter Tóth ,  András Tomor ,  Chris Brydon ,  Chris Shages ,  Larry Ray

IPC: F16K11/087 ,  F16K5/06

CPC classification number: F16K11/0873 ,  F16K5/0605

Abstract: Valve assemblies, systems, and methods may include at least one purging assembly comprising at least one purge port extending through a valve body or housing in order to supply a purge fluid into the valve body or housing. The at least one purge port is positioned on the valve body or housing to redirect a portion of the purge fluid as the purge fluid exits the at least one purge port.

公开(公告)号：US20230358484A1

公开(公告)日：2023-11-09

申请号：US18222450

申请日：2023-07-16

Applicant: FLOWSERVE PTE. LTD.

Inventor： Ronald van Noesel ,  Dennis van Graefschepe ,  Frank Oomen

IPC: F28F1/36 ,  F28F1/40

CPC classification number: F28F1/36 ,  F28F1/40 ,  F28D1/0472

Abstract: Heat exchangers include at least one looped tube having at least one section that is laterally offset from another section of the looped tube. Fluid cooling systems and seal systems may include such heat exchangers.