Automatic shutoff refueling receiver

A method for filling a tank comprising the steps of:

• receiving fuel at an inlet of a receiver;
• allowing fuel to flow through the receiver to a control valve piston having an inlet side and an outlet side;
• allowing fuel to flow from the inlet side to the outlet side;
• allowing fuel to flow from the inlet to an outlet fitting and back into the receiver through a return fitting;
• and
• controlling a pressure differential between the inlet side and the outlet side using the fuel flow from the return fitting.

A system for filling a tank comprising:

• means for receiving fuel at an inlet of a receiver;
• means for allowing fuel to flow through the receiver to a control valve piston having an inlet side and an outlet side;
• means for allowing fuel to flow from the inlet side to the outlet side;
• means for allowing fuel to flow from the inlet to an outlet fitting and back into the receiver through a return fitting;
• and
• means for controlling a pressure differential between the inlet side and the outlet side using the fuel flow from the return fitting.

A refueling receiver comprising:

• an inlet configured to receive a nozzle;
• a control valve piston connected to said inlet to allow flow from said inlet to said control valve piston, said control valve piston having an inlet side and an outlet side;
• an outlet comprising an outlet fitting and a return fitting, said outlet fitting connected to said inlet to allow flow from said inlet to said outlet fitting;
• a sensor having an input connected to said outlet fitting, and an output connected to said return fitting to allow flow from said outlet fitting to said return fitting through said sensor;
• and
• a pilot valve in communication with said return fitting to control a pressure differential between said inlet side and said outlet side to move said control valve piston into a first position to allow flow out of the receiver, and a second position to prevent flow from leaving the receiver.