Other

Electric Power Research Institute Incorporated

Stanley Timothy Rosinski

Hermann Josef Laumen

Mohamed Douch

Christopher Adam Suprock

Joseph James Christian

Bill Gene Carson

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.

Servo-controlled metering valve and fluid injection system

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&#xb0; F.

Apparatus having a semiconductor strain gage encased within ceramic material for measuring strain and methods for making and using same

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Charlotte, NC, United States of America

Stanley Timothy Rosinski