Measuring and testing – Volume or rate of flow – Using differential pressure
Patent
1986-05-29
1988-04-05
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Using differential pressure
G01F 146
Patent
active
047351004
ABSTRACT:
A sensor has two independent pressure chambers, each of which is in fluid communication through a plurality of relatively small passages to the flow within a duct; the passages for the first chamber being directed upstream, the passages for the second chamber being directed otherwise than upstream, usually downstream. The chambers are arranged so that their axes are parallel to each other, with the axis of the first chamber upstream of the axis of the second chamber. Depending upon the profile of the sensor, the dynamic pressure and changes therein are a constant multiplier function of the first chamber pressure minus static pressure. The constant multiplier is greater than 1.0, and is constant for a given sensor across a wide variation of measured pressures. When the profile of the sensor is essentially cruciform, with upwardly and downwardly extending wings, the multiplier effect may be in the order of 3.5 to 5.0, thereby permitting very low differential pressures to be detected and measured.
REFERENCES:
patent: 3751982 (1973-08-01), Lambert
patent: 4154100 (1979-05-01), Harbaugh et al.
patent: 4344330 (1982-08-01), Renken et al.
patent: 4425807 (1984-01-01), Victor
patent: 4453419 (1984-06-01), Engelke
patent: 4481829 (1984-11-01), Shortridge
patent: 4546655 (1985-10-01), Victor
Goldstein Herbert
Nailor-Hart Industries Inc.
LandOfFree
Fluid flow sensor having multiplying effect does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluid flow sensor having multiplying effect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid flow sensor having multiplying effect will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2227211