A fuel nozzle, also known as a fuel dispenser, is a machine at a filling station that is used to pump gasoline, diesel, CNG, CGH2, HCNG, LPG, LH2, ethanol fuel, biofuels like biodiesel, kerosene, or other types of fuel into vehicles.
A modern fuel dispenser is logically divided into two main parts — an electronic “head” containing an embedded computer to control the action of the pump, drive the pump’s displays, and communicate to an indoor sales system; and secondly, the mechanical section which in a ‘self contained’ unit has an electric motor, pumping unit, meters, pulsers and valves to physically pump and control the fuel flow. Nozzles are attached to the pump via flexible hoses, allowing them to be placed into the vehicle’s filling inlet. The hoses are robust to survive heavy wear and tear, including exposure to weather and being driven over, and are often attached using heavy spring or coil arrangements to provide additional strength.