Fluid meter

摘要

A fuel dispensing system having a positive displacement vane type fuel meter with an enclosed rotor assembly mounted within a fluid tight housing and connected to a fluid inlet and outlet of the housing to be rotated in direct proportion to the volume of gasoline conducted through the meter and two alternative embodiments of electrical pulse generating means with two Hall effect pickups mounted externally of the housing, ferromagnetic plugs extending through the housing and ferromagnetic means mounted on the rotor assembly to cooperate with the ferromagnetic plugs to generate an electrical pulse with each pickup for each predetermined increment of gasoline conducted through the meter.