[특허]Integrated process control valve

Integrated process control valve 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G05D-011/13
출원번호	US-0533166 (1990-06-01)
발명자 / 주소	Haines Lawrence A. (Mapleton UT) Messano Edward A. (Provo UT) Beatty Kenneth L. (Spanish Fork UT) Gooch Robert E. (Provo UT) Glenn Alan H. (Salem UT) O\Hara Dennis E. (Mapleton UT)
출원인 / 주소	Valtek, Inc. (Springville UT 02)
인용정보	피인용 횟수 : 83 인용 특허 : 0

초록 ▼

An integrated process control valve includes a fluid valve body having an inlet for receiving fluid, an outlet for discharging fluid, a fluid flow passage connecting the inlet and outlet, and a controllable throttling element which is moveable to selectively vary the flow rate of fluid through the fluid flow passage. The valve also includes an actuator coupled to the valve body and responsive to control signals for selectively moving the throttling element, a first pressure sensor disposed at the inlet of the valve body for producing a first signal representing the pressure of the fluid at the inlet, a second pressure sensor disposed at the outlet of the valve body for producing a second signal representing the pressure of the fluid at the outlet, a position sensor for producing a position signal indicating the position of the throttling element, and a utilization device for receiving the signals and either producing a display representing the signal values and/or producing control signals for supply to the actuator to cause the actuator to move the throttling element to thereby vary the fluid pressure at the inlet and outlet of the valve body. The control signals include pneumatic signals for developing pressures in the actuator to cause the actuator to move the throttling element. Sensors are provided for detecting the values of the pneumatic signals which may be displayed by the utilization device along with the display of representations of the other signal values, including the position signal values.

대표청구항 ▼

A process control valve comprising a fluid valve body having an inlet for receiving fluid, an outlet for discharging fluid, a fluid flow passage connecting the inlet and outlet, and a controllable throttling element which is moveable to selectively vary the cross-sectional area of flow of at least a portion of the passage, actuator means coupled to the valve body and responsive to control signals for selectively moving the throttling element, a first pressure sensor disposed at the inlet of the valve body for producing a first signal representing the pressure P1 of the fluid at the inlet, a second pressure sensor disposed at the outlet of the valve body for producing a second signal representing the pressure P2 of the fluid at the outlet, utilization means for receiving said first and second signals and for developing an output dependent upon the received signals, said utilization means including means for determining the fluid pressure drop across the valve body from the first and second signals, means for storing a predetermined fluid pressure drop value, means for comparing the determined fluid pressure drop with the stored fluid pressure drop value and for producing a difference signal whose magnitude represents a difference between the compared values, and means for producing control signals for application to the actuator means to cause it move the throttling element to thereby vary the fluid pressure drop across the valve body to more closely match the stored fluid pressure drop value and reduce the magnitude of the difference signal.

이 특허를 인용한 특허 (83)

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Titus John S., Fluid metering apparatus and method.
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Boger Henry W., Fluid pressure measuring system for control valves.
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Zeng, Xiangwei, Fluid-controlled valve for pipeline pig.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Integrated process control valve 원문보기

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Integrated process control valve 원문보기

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이 특허를 인용한 특허 (83)

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