Inadvertent actuation block valve for a small modular nuclear reactor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11521757
SERIAL NO

16294062

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An inadvertent actuation block valve includes inlet and outlet orifices being in selective fluid communication via a chamber. A disc is disposed within the chamber and a bellows is configured to contract at a predetermined pressure differential between reactor fluid entering a reference pressure orifice and control fluid entering the inlet orifice. When the bellows contracts, the disc engages the outlet orifice and isolates fluid communication between the inlet and outlet orifices. The inadvertent actuation block valve prevents inadvertent opening of an emergency core cooling valve when a reactor is at operating pressure that is above the predetermined set pressure range. The inadvertent actuation block valve permits the emergency cooling valves to open and to remain open when reactor pressure is below the predetermined set pressure range. The inadvertent actuation block valve does not impede long term emergency cooling that occurs when the reactor is at low pressure.

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Patent Owner(s)

Patent OwnerAddress
CURTISS-WRIGHT FLOW CONTROL CORPORATION10195 BRECKSVILLE RD BRECKSVILLE OH 44141
NUSCALE POWER LLC1100 NE CIRCLE BLVD SUITE 200 CORVALLIS OR 97330

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
O'Brien, Hugh S Huntington, US 2 2
Velkoff,, Jr William Jeffrey W. Islip, US 1 0

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