Measuring and testing – Volume or rate of flow – Expansible chamber
Patent
1985-04-08
1987-02-03
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Expansible chamber
418178, G01F 304
Patent
active
046401253
ABSTRACT:
The present invention is directed to an apparatus useful for measuring the flow of an abrasive fluid. The present invention comprises a rotary metering device particularly useful for the measurement of oil well production fluids including sand and other abrasive materials. The present invention comprises a rotary metering device for repetitively producing a measuring chamber by the shuttle movement of a plurality of symmetrically disposed blades through slots in a rotor body into and out of a fluid flow channel between the rotor body and its housing. The rotor body of the present invention includes slots having surfaces comprised of a highly wear resistant metal, preferably having a hardness between about 40 and about 70 on the Rockwell C hardness scale to increase the service life of the meter. In a more preferred embodiment, the surface of the cooperating blades is also comprised of a metal having a high wear resistance, also preferably between about 40 and about 70 on the Rockwell C hardness scale, but less than that of the cooperating slot surface.
REFERENCES:
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patent: 4502856 (1985-03-01), Frank
Goldstein Herbert
Lake Charles Instruments, Inc.
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