Patent ID: 9562842
Date: 2017-02-07
CPC Classifications: F02M,G01N

Claim:
1. A method for determining a buffer effect of an activated carbon filter for a tank venting system of a fuel container for hydrocarbon-containing fuels, the method comprising: providing at least one thermodynamically isolated container with a defined volume; connecting a hydrocarbon source to a pressure control valve that is coupled to the at least one thermodynamically isolated container with the defined volume; filling the at least one thermodynamically isolated container with hydrocarbon at a pressure that can be set and defined at the pressure control valve and at a defined temperature for feeding a defined quantity of hydrocarbon molecules to the at least one thermodynamically isolated container; establishing gas flow communication between the thermodynamically isolated container and the activated carbon filter via a tank connection of the activated carbon filter by means of a hydrocarbon feed system; introducing a defined carrier gas flow into the activated carbon filter via an air connection of the activated carbon filter by means of a carrier gas feed device, thereby delivering the defined quantity of hydrocarbon molecules from the thermodynamically isolated container to the activated carbon filter; sucking a defined volumetric flow out of the activated carbon filter to a hydrocarbon measuring device; and measuring a content of hydrocarbon molecules in the defined volumetric flow out of the activated carbon filter.