Measuring and testing – Volume or rate of flow – Using differential pressure
Patent
1977-11-07
1983-02-08
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Using differential pressure
7386165, G01F 142, GO1F 146
Patent
active
043721702
ABSTRACT:
A flow measuring apparatus having increased sensitivity is disclosed for measuring the flow of gas, particularly through a confined passage. The flow measuring apparatus comprises a tube having a constant or tapered orifice section followed by an abrupt expansion of the orifice; a total pressure sensing probe is located preferably in the section of the tube with the constant or tapered orifice, the total sensing probe having an opening parallel to the flow of gas and facing upstream; and a static pressure sensing probe is located in the walls of the tube in the expanded orifice section immediately after the abrupt expansion, the static pressure probe having an opening either parallel to the flow of gas and facing downstream or perpendicular to the flow of gas. The sensing probes may be connected to a measuring device that provides a readout of the sensed pressures or pressure differential or to a control unit that is responsive to the sensed pressures or pressure differential.
REFERENCES:
patent: 790888 (1905-05-01), Ferris
patent: 1145235 (1915-07-01), Dodge
patent: 2441042 (1948-05-01), Stoll
patent: 2614423 (1952-10-01), Carbone
patent: 2942465 (1960-06-01), Carbone
patent: 3374673 (1978-03-01), Trageser
patent: 3590473 (1971-07-01), Carlson
patent: 3667494 (1972-06-01), Haase
patent: 3889536 (1975-06-01), Sylvester
patent: 3937082 (1976-02-01), Schilling
Dehart Marv L.
Kloostra M. Leon
Straub Harold E.
Brumback Oscar B.
Environmental Elements Corp.
Goldstein Herbert
Zeh, Jr. Herbert J.
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