Apparatus for determining the differential pressure and the volu

Details Apparatus for determining the differential pressure and the volu Apparatus for determining the differential pressure and the volu

1980-01-23

1981-09-22

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using differential pressure

G01F 142

Patent

active

042903157

ABSTRACT:
An apparatus for determining the differential pressure and the volumetric fluid flow in a conduit. The apparatus comprises an annular plate means positioned substantially coaxially within the conduit or within an open-ended housing forming part of the conduit. The annular plate means is provided, in its central portion, with an orifice for the fluid flow. On each side of the annular plate means there is a pipe loop provided with a series of ports, such as holes or slots with relatively small dimensions, for sensing the pressure at different points upstream and downstream, respectively, of the plate means. Pressure responsive means are operatively connected to the ports for determining the differential pressure on opposite sides of the plate means. An annular additional passage for the fluid flow is formed between the outer periphery of the annular plate and the inner wall of the conduit or the open-ended housing.

REFERENCES:
patent: 2687645 (1954-08-01), Velten et al.
patent: 3759098 (1973-09-01), Logsdon et al.
patent: 4008611 (1977-02-01), Turocy

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