Method of determining the gas return rate at filling pumps

Details Method of determining the gas return rate at filling pumps Method of determining the gas return rate at filling pumps

G - Physics

01

F

G01F 5/00 (2006.01) B67D 7/08 (2010.01) B67D 7/16 (2010.01) B67D 7/54 (2010.01) G01F 1/68 (2006.01)

Patent

CA 2574604

A method of determining the gas return rate at filling stations is carried out at filling pumps (1) with two filling points (2, 2'), a first filling point (2) and a second filling point (2'). Each filling point (2, 2') is assigned at least one fuel flow meter (8, 8') of its own and both filling points (2, 2') are assigned a common gas flow meter (20), which is arranged downstream of a meeting point (19) of the gas streams of the two filling points (2, 2'). The measured values obtained from the two fuel flow meters (8, 8') and from the gas flow meter (20) are recorded at short predetermined time intervals in assigment to one another. In the case of at least partially simultaneous refuelling operations at the two filling points (2, 2'), the information determined from the measured values of the fuel flow meters (8, 8') concerning the progression over time of the two refuelling operations is used for breaking down the measured sum of the gas flow of the two filling points (2, 2') into a gas flow assigned to the first filling point (2) and a gas flow assigned to the second filling point (2').

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