Patent attributes
A metering pump for dispensing a fuel additive includes a pump body, an inlet and an outlet at which fuel additive respectively enters and exits the metering pump, a piston contained within a piston bore and being configured to draw fuel additive into the metering pump through the inlet and to dispense fuel additive from the metering pump through the outlet, an inflow valve configured to permit fuel additive to flow in a single direction away from the inlet and to prevent fuel additive from flowing in an opposite direction back into the inlet, and an outflow valve configured to permit fuel additive to flow in the single direction towards the outlet, wherein the metering pump has a configuration in which the inlet, the outlet, the piston, the piston bore, the inflow valve, and the outflow valve are centrally positioned along a central plane of the pump body.
