Patent ID: 9347849
Filing Date: 2016-05-24
CPC Classification: G01M

Claim Text:
1. A method for determining the thermal status of a fuel dispensing system comprising a tank, a pump, a fuel line, a dispensing unit, and forward and reverse flow directions defined by the direction of fuel flow from the tank through the fuel line to the dispensing unit, the method comprising: activating the pump in order to move fuel forward into the fuel line while the dispensing unit is closed, pressurizing the fuel line; after activating the pump to pressurize the fuel line, deactivating the pump to allow fuel to reverse flow in order to leave the fuel line; after deactivating the pump, measuring the flow of fuel to generate a first set of measurements, the measurements distinguishing between forward and reverse flow; and determining the thermal status of the system based on the first set of measurements.