Pressure balanced drag turbine mass flow meter

Patent · Fri Jan 01 00:00:00 EST 1982

OSTI ID:864231

Dacus, Michael W ^[1]; Cole, Jack H ^[2]

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1. Gilbert, AR
2. Fayetteville, AR

The density of the fluid flowing through a tubular member may be measured by a device comprising a rotor assembly suspended within the tubular member, a fluid bearing medium for the rotor assembly shaft, independent fluid flow lines to each bearing chamber, and a scheme for detection of any difference between the upstream and downstream bearing fluid pressures. The rotor assembly reacts to fluid flow both by rotation and axial displacement; therefore concurrent measurements may be made of the velocity of blade rotation and also bearing pressure changes, where the pressure changes may be equated to the fluid momentum flux imparted to the rotor blades. From these parameters the flow velocity and density of the fluid may be deduced.

• Research Organization: Idaho National Laboratory (INL), Idaho Falls, ID (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4333355
• OSTI ID: 864231
• Country of Publication: United States
• Language: English

Related Subjects

pressure
balanced
drag
turbine
mass
flow
meter
density
fluid
flowing
tubular
measured
device
comprising
rotor
assembly
suspended
bearing
medium
shaft
independent
lines
chamber
scheme
detection
difference
upstream
downstream
pressures
reacts
rotation
axial
displacement
concurrent
measurements
velocity
blade
changes
equated
momentum
flux
imparted
blades
parameters
deduced
pressure changes
rotor blade
current measurement
bearing fluid
axial displacement
flow meter
mass flow
rotor assembly
fluid flow
device comprising
flow velocity
fluid pressure
fluid flowing
rotor blades
momentum flux
turbine mass
pressure balanced
flow line
fluid pressures
current measurements
pressure change
bearing medium
/73/