초록 ▼

A metering pump employs a pump which is actuated by the fuel level gauge float assembly of the fuel tank to add metered quantities of an additive to the fuel tank. The quantity of metered additive is proportional to the quantity of fuel added to the tank. A container for the additive supply communic

A metering pump employs a pump which is actuated by the fuel level gauge float assembly of the fuel tank to add metered quantities of an additive to the fuel tank. The quantity of metered additive is proportional to the quantity of fuel added to the tank. A container for the additive supply communicates with the fuel tank via a valve is actuated in response to the introduction of fuel into the fuel tank.

대표청구항 ▼

A metering system for adding quantities of an additive contained in a reservoir to fuel in the fuel tank of an internal combustion engine comprising: conduit means to provide a fluid conduit from the reservoir to the fuel tank; valve means to selectively close the conduit means to the passage of a f

A metering system for adding quantities of an additive contained in a reservoir to fuel in the fuel tank of an internal combustion engine comprising: conduit means to provide a fluid conduit from the reservoir to the fuel tank; valve means to selectively close the conduit means to the passage of a fluid; actuator means to govern the valve means in accordance with the operational mode of the engine; and metering pump means to pump the additive from the reservoir to the fuel tank and to meter a quantity of the additive into the fuel tank in proportion to the quantity of fuel added to the tank, said pump means comprising a first conduit and a second conduit, said second conduit being closely received in said first conduit for longitudinal movement therein and said pump means being actuable in response to a change of the fuel level in said fuel tank.