Air volume control valve capable of accurately measuring air volume

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12228304
APP PUB NO 20250012475A1
SERIAL NO

18894072

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An air volume control valve capable of accurately measuring an air volume is provided. The air volume control valve includes a round-shaped valve body, and a valve blade and an orifice plate provided in the round-shaped valve body, where the orifice plate is located upstream of the valve blade; an upstream pressure tapping port and a downstream pressure tapping port are respectively provided upstream and downstream of the orifice plate; a distance from both the upstream pressure tapping port and the downstream pressure tapping port to the orifice plate is 0.5 times a valve diameter; the valve blade is located downstream of the downstream pressure tapping port; an inlet side of the round-shaped valve body is provided with a convergent duct fitting; and the convergent duct fitting is located at a distance of once the valve diameter upstream of the orifice plate and is tapered along an air flow direction.

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Patent Owner(s)

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International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dong, Lin Beijing, CN 47 248
Li, Xiangfang Beijing, CN 4 39
Sun, Ning Beijing, CN 87 1411

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