Flow measurement device
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United States of America Patent
Stats
-
Dec 13, 1988
Grant Date -
N/A
app pub date -
May 1, 1987
filing date -
May 1, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Fluid flow is determined for a large flow pipe based upon differential pressure across an orifice in the pipe having a known cross-sectional area. In one form, the orifice is variable and adjusted in response to differential pressure so as to maintain differential pressure at a constant value. Flow is determined directly from orifice area. The orifice may be a part of a closed loop flow measurement system which responds to differential pressure changes to adjust orifice area. Various differential pressure settings may be used to accommodate selected back pressures in the flow pipe.
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Cited Art Landscape
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