Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Helical screw viscometer

Patent ·
OSTI ID:6853213

A helical screw viscometer for the measurement of the viscosity of Newtonian and non-Newtonian fluids comprising an elongated cylindrical container closed by end caps defining a circular cylindrical cavity within the container, a cylindrical rotor member having a helical screw or ribbon flight carried by the outer periphery thereof rotatably carried within the cavity whereby the fluid to be measured is confined in the cavity filling the space between the rotor and the container wall. The rotor member is supported by axle members journaled in the end caps, one axle extending through one end cap and connectable to a drive source. A pair of longitudinally spaced ports are provided through the wall of the container in communication with the cavity and a differential pressure meter is connected between the ports for measuring the pressure drop caused by the rotation of the helical screw rotor acting on the confined fluid for computing viscosity.

DOE Contract Number:
AC04-76DP00789
Assignee:
Dept. of Energy
Patent Number(s):
None
Application Number:
ON: DE84011111
OSTI ID:
6853213
Country of Publication:
United States
Language:
English

Similar Records

Throttling means for geothermal streams. [helical screw expander]
Patent · Tue Aug 31 00:00:00 EDT 1976 · OSTI ID:7336354

Rotational viscometer for high-pressure, high-temperature fluids
Patent · Mon Jun 06 00:00:00 EDT 1983 · OSTI ID:6853201

An in-line ultrasonic viscometer
Technical Report · Sat Oct 01 00:00:00 EDT 1994 · OSTI ID:10194622