Piotless nozzle

Details Piotless nozzle Piotless nozzle

2005-04-05

2005-04-05

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Volume or rate of flow

Using differential pressure

Reexamination Certificate

active

06874375

ABSTRACT:
A method and device for obtaining an accurate flow rate measurement through a fluid flow system. A nozzle and gauge tapping combination is connected to a fluid flow system. Fluid enters the nozzle as turbulent flow. As the fluid passes through the nozzle, the turbulent flow is converted to laminar flow due to the shape of the nozzle. Once in laminar flow, the pressure at that point in the nozzle is constant, and therefore the pressure, and thus flow rate, can be measured with greater accuracy.

REFERENCES:
patent: 2564272 (1951-08-01), Morton
patent: 3736797 (1973-06-01), Brown
patent: 3918305 (1975-11-01), Benedict
patent: 4343193 (1982-08-01), Dawson et al.
patent: 4555952 (1985-12-01), Jenkins

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