Enhanced Type S pitot tube with reduced and symmetric response to pitch
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 16, 1996
Grant Date -
N/A
app pub date -
Feb 28, 1995
filing date -
Feb 28, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A improved Type S or reverse type pitot tube has two conduit legs which are mirror images of one another. Each conduit leg has an input portion having a pressure port therein, a support portion and a connecting portion connected between the input portion and the support portion. The support portion and the connecting portion lie in one plane which plane is substantially perpendicular to a centerline through the input portions. The conduit legs are shaped and oriented relative to one another so that the pressure ports of the input portions of the first and second conduits are collinear and when placed in a conduit, the pitot tube will be symmetrical in a yaw plane and both symmetrical and non-interfering in a pitch plane. The first and second conduits are spaced apart over at least a portion of their length to define an opening adjacent the input portions which opening is at least 3 times wider and deeper than the input portions. With this pitot tube the errors in flow measurement which result from the pitch angle flow are negligible in most cases and never result in a low biased reading.
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