A [url=http://www.sankichina.com]Fuel Dispenser[/url] is a machine at a filling station that is used to pump gasoline, diesel, ethanol fuel, kerosene, or other types of fuel into vehicles. [url=http://www.sankichina.com]Fuel Dispenser[/url]s are also known as bowsers (in Australia).Petrol pumps (in Commonwealth countries), or gas pumps (in North America).
History
The first gasoline pump was invented and sold by Sylvanus F. Bowser in Fort Wayne, Indiana on September 5, 1885.[2] This pump was not used for automobiles, as they had not been invented yet. It was instead used for some kerosene lamps and stoves. He later improved upon the pump by adding safety measures, and also by adding a hose to directly dispense fuel into automobiles. For a while, the term bowser was used to refer to a vertical gasoline pump. Although the term is not used anymore in the United States, it still is used sometimes in Australia and New Zealand.
Many early gasoline pumps had a calibrated glass cylinder on top. The desired quantity of fuel was pumped up into the cylinder as indicated by the calibration. Then the pumping was stopped and the gasoline was let out into the customers tank by gravity. When metering pumps came into use, a small glass globe with a turbine inside replaced the measuring cylinder but assured the customer that gasoline really was flowing into the tank.
Design
A modern [url=http://www.sankichina.com]Fuel Dispenser[/url] 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.
In some cases the actual pump may be sealed and immersed inside the fuel tanks on a site, in which case it is known as a submersible pump. In general submersible solutions in Europe are installed in hotter countries, where suction pumps may have problems overcoming cavitation with warm fuels or when the distance from tank to pump is longer than a suction pump can manage.
In modern pumps, the major variations are in the number of hoses or grades they can dispense, the physical shape, and the addition of extra devices such as pay at the pump devices and attendant "tag" readers.
Flow rate is typically 40+ litres per minute and is higher for highspeed pumps serving trucks and other large vehichles. In the USA flow rate is limited to 10 gallons per minute (37.8 litres per minute)

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