公开(公告)号：US11873921B2

公开(公告)日：2024-01-16

申请号：US17884071

申请日：2022-08-09

Applicant: Electric Power Research Institute, Inc.

Inventor： Hermann Josef Laumen ,  Mohamed Douch ,  Stanley Timothy Rosinski ,  Bill Gene Carson

IPC: F16K49/00 ,  G05D7/06 ,  F16K31/40 ,  F16K15/06

CPC classification number: F16K49/00 ,  F16K15/065 ,  F16K31/406 ,  F16K49/005 ,  G05D7/0635 ,  Y02E20/16

Abstract: The present invention is directed to a metering valve for controlling the amount of a fluid passed through the valve and a servo-valve for controlling the metering valve, wherein the servo-valve is decoupled from the metering valve to thermally distance or thermally isolate the servo-valve from any heat from the fluid passing through the metering valve. The metering valve and servo-valve may be used to attemperate a steam stream in a power plant attemperation system, such as a system for attemperating a superheated steam gas stream from a power plant being used for a heat-recovery steam generator. An integrated metering valve and discharge valve for discharging fluid during periods of non-use is also provide. Changeable throttle plates are also provided that control the flow of the fluid through the control chamber of the metering valve and the discharge valve.

公开(公告)号：US11193836B2

公开(公告)日：2021-12-07

申请号：US16262690

申请日：2019-01-30

Applicant: Electric Power Research Institute, Inc.

Inventor： Stanley Timothy Rosinski ,  Christopher Adam Suprock ,  Joseph James Christian

IPC: G01L1/18 ,  G01L19/14 ,  G01L19/06

Abstract: The invention relates to a strain gage and methods for making and using the same to measure strain of a surface of interest. In particular, the invention relates to a semiconductor strain gage held by a metal body using a ceramic interface between the gage and the body, which that can be attached to a surface of interest. The invention also relates to methods for making the ceramic interface and attaching the semiconductor strain gage to a surface of interest. The invention, including its various embodiments, also relates to using the semiconductor strain gage to measure strain at temperatures above 1000° F.

公开(公告)号：US20190234815A1

公开(公告)日：2019-08-01

申请号：US16262690

申请日：2019-01-30

Applicant: Electric Power Research Institute, Inc.

Inventor： Stanley Timothy Rosinski ,  Christopher Adam Suprock ,  Joseph James Christian

IPC: G01L1/18

CPC classification number: G01L1/18 ,  G01L19/0681 ,  G01L19/147

Abstract: The invention relates to a strain gage and methods for making and using the same to measure strain of a surface of interest. In particular, the invention relates to a semiconductor strain gage held by a metal body using a ceramic interface between the gage and the body, which that can be attached to a surface of interest. The invention also relates to methods for making the ceramic interface and attaching the semiconductor strain gage to a surface of interest. The invention, including its various embodiments, also relates to using the semiconductor strain gage to measure strain at temperatures above 1000° F.

公开(公告)号：US20240125094A1

公开(公告)日：2024-04-18

申请号：US18531185

申请日：2023-12-06

Applicant: Electric Power Research Institute, Inc.

Inventor： Hermann Josef Laumen ,  Mohamed Douch ,  Stanley Timothy Rosinski ,  Bill Gene Carson

IPC: E02F9/22 ,  B62D11/00 ,  B62D11/04 ,  E02F9/26

CPC classification number: E02F9/225 ,  B62D11/005 ,  B62D11/04 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/26 ,  E02F9/2296

Abstract: The present invention is directed to a metering valve for controlling the amount of a fluid passed through the valve and a servo-valve for controlling the metering valve, wherein the servo-valve is decoupled from the metering valve to thermally distance or thermally isolate the servo-valve from any heat from the fluid passing through the metering valve. The metering valve and servo-valve may be used to attemperate a steam stream in a power plant attemperation system, such as a system for attemperating a superheated steam gas stream from a power plant being used for a heat-recovery steam generator. An integrated metering valve and discharge valve for discharging fluid during periods of non-use is also provide. Changeable throttle plates are also provided that control the flow of the fluid through the control chamber of the metering valve and the discharge valve.

公开(公告)号：US20230047177A1

公开(公告)日：2023-02-16

申请号：US17884071

申请日：2022-08-09

Applicant: Electric Power Research Institute, Inc.

Inventor： Hermann Josef Laumen ,  Mohamed Douch ,  Stanley Timothy Rosinski ,  Bill Gene Carson

IPC: F16K49/00 ,  G05D7/06

Abstract: The present invention is directed to a metering valve for controlling the amount of a fluid passed through the valve and a servo-valve for controlling the metering valve, wherein the servo-valve is decoupled from the metering valve to thermally distance or thermally isolate the servo-valve from any heat from the fluid passing through the metering valve. The metering valve and servo-valve may be used to attemperate a steam stream in a power plant attemperation system, such as a system for attemperating a superheated steam gas stream from a power plant being used for a heat-recovery steam generator. An integrated metering valve and discharge valve for discharging fluid during periods of non-use is also provide. Changeable throttle plates are also provided that control the flow of the fluid through the control chamber of the metering valve and the discharge valve.