초록 ▼

This invention relates to a method and apparatus for a liquid mass flowmeter. The flowmeter apparatus gives correct flow regardless of changes in density, viscosity, or composition of the liquid and corrects flow in spite of errors common in currently used flowmeters, such as, calibration shifts, re

This invention relates to a method and apparatus for a liquid mass flowmeter. The flowmeter apparatus gives correct flow regardless of changes in density, viscosity, or composition of the liquid and corrects flow in spite of errors common in currently used flowmeters, such as, calibration shifts, restricted orifices and/or bearing drag and blade wear of turbine meters.

대표청구항 ▼

A mass flowmeter apparatus comprising (1) a substantially vertical container having a known mass content per unit of height or weight, said container in direct open fluid communication with a conduit containing liquid; (2) means capable of providing a positive displacement pressure at the upper end

A mass flowmeter apparatus comprising (1) a substantially vertical container having a known mass content per unit of height or weight, said container in direct open fluid communication with a conduit containing liquid; (2) means capable of providing a positive displacement pressure at the upper end of said vertical container; (3) means for filling said vertical container with liquid, and placing a constant positive displacement pressure on said container; (4) means for monitoring the amount of liquid in said vertical container over a measured time interval and determining rate of flow as change in mass divided by elapsed time as fluid exits the container.