Fuel conduction system

A fuel conduction system in combination with a fuel consuming device, the system comprising;

• a fuel source;
• a pump having an inlet, a main outlet and a pressure regulation return outlet;
• a supply line extending in a longitudinal direction from a source connecting end coupled to the fuel source to a pump connecting end coupled to the inlet of the pump;
• a return line extending substantially concentrically through the supply line in the longitudinal direction of the supply line from a source connecting end coupled to the fuel source to a pump connecting end coupled to the pressure regulation return outlet of the pump;
• and
• an outlet line coupled between the main outlet of the pump and the fuel consuming device.

A portable fuel source for supplying fuel to a fuel consuming device having a pump including an inlet, a main outlet and a pressure regulation return outlet, the portable fuel source comprising:

• a fuel storage container supported for rolling movement across the ground;
• a supply line arranged to be coupled between the container and the inlet of the pump;
• a return line arranged to be coupled between the container and the pressure regulation return outlet of the pump;
• and
• a valve mounted integrally on the container and being arranged to be coupled in series with the supply line, the valve including a valve member which is biased towards a closed position, the valve member being arranged to be opened in response to a reduction in pressure in the supply line associated with activation of the pump.