Avl List Gmbh

Ferdinand Purkathofer

Michael Wiesinger

Rudolf Christian

In a method for continuous measuring of dynamic fluid consumption, particularly fuel, the pressure beyond the flow sensor is adjusted to a constant value by means of a pressure regulator by using a continuously-operating flow sensor with variable pressure drop, preferably a mass flow sensor. Fluid is guided into the pressure regulator after exceeding a discretionary pressure to allow continuous, accurate, as well timely and highly discriminating consumption measuring with regulated exit pressure for the fluid even at a back-flow of short duration or during temperature-related expansion of the fluid. A pressure regulator () provided for this purpose has a housing (), which contains an element () biased by a changeable force whereby the element () is coupled to a valve arrangement () that is also arranged in the housing () for the fluid to build up pressure therein. The pressure regulator () contains a catch volume for the fluid.

Method and device for continuous measuring of dynamic fluid consumption, including pressure regulator

A method and device for continuous measuring of dynamic fluid consumption, particularly gaseous or liquid motor fuel, employs a continuously operating flow sensor with variable decrease in pressure, preferably a mass flow sensor. The pressure downstream from the flow sensor is adjusted to a constant value by changing the admission pressure of the sensor to make possible accurate and rapid consumption measurements with controlled output pressure for the fluid by means of an open system, and also to allow simultaneous measuring of at least a short-time return flow. The device includes a preferably controllable pump () possibly a conditioning device and a tank (), and continuously operating flow sensor () for the fluid, preferably a Coriolis sensor, whereby a line branches off behind the sensor () leading to a pressure sensor whose output is connected to a control device that triggers the devices to influence the volume flow upstream from the sensor ().

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St. Radegund, Austria

Ferdinand Purkathofer