Patent ID: 6622555
Filing Date: 2003-09-23
Classification: F02D,G01F

Abstract:
A device for detecting a mass of a flowing fluid, the device comprising:a housing positionable within a fluid carrying duct having a fluid sampling portion and a circuit cavity portion, wherein the fluid sampling portion includes a flow passage; a nozzle in fluid communication with the flow passage, wherein the nozzle has a plurality of longitudinally converging elliptical side surfaces that terminate at a nozzle exit; a first electrical element disposed in the flow passage at the nozzle exit; a second electrical element supported by the housing external of the flow passage; and a circuit module in communication with the first and second electrical elements and disposed in the circuit cavity portion for detecting a change in an electrical properties of the first and second electrical elements, wherein the detected change in the electrical properties are used to determine the mass of the flowing fluid.