Patent attributes
A system for recovering fuel vapor during delivery of fuel by a mobile fueler includes a storage tank covered with a layer of insulation, a supply pump connected to the storage tank for delivering fuel therefrom, and a fuel dispensing assembly, preferably a coaxial hose and nozzle, including a supply outlet for delivering fuel to a vehicle being fueled, and a vapor recovery inlet proximate the supply outlet. A diverter valve diverts a portion of the fuel in the supply line, and a vacuum jet pump is connected to the storage tank and, by a vapor line, to the vapor recovery inlet, which is driven by the diverted fuel to create a vacuum in the vapor line to draw vapor into the vapor recovery inlet, through the vapor line, and into the storage tank.
