Pressure balanced drag turbine mass flow meter

Patent · Wed Apr 23 04:00:00 EST 1980

OSTI ID:6868084

Dacus, M W; Cole, J H

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.

• DOE Contract Number: EY-76-C-07-1570
• Assignee: Dept. of Energy
• Patent Number(s): None
• OSTI ID: 6868084
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
420400 -- Engineering-- Heat Transfer & Fluid Flow
DESIGN
FLOWMETERS
FLUID FLOW
MEASURING INSTRUMENTS
METERS
OPERATION
ROTORS
TUBES