Removal of polynuclear aromatic compounds from motor vehicle fuel
AssigneeAllied-Signal Inc.
InventorAlan B. Johnson
Life of this patent
Estimating the term…
Abstract
Polynuclear aromatic hydrocarbon compounds (PNAs) are removed from motor vehicle fuel by passing the fuel through a sorbent which is placed either in the fuel line between the fuel tank and the engine or in the filler tube through which the vehicle is fueled.
Claims16
Fueling system for supplying fuel to the engine of a vehicle, said fueling system including a fuel filler tube for receiving fuel from a fuel dispenser and communicating said fuel to a fuel tank, a fuel line for communicating fuel from said fuel tank to said engine, and an activated carbon sorbent within said fueling system for removing polynuclear aromatic hydrocarbon compounds from said fuel as said fuel is communicated within said fueling system before said fuel is combusted in said engine.
Fuel filter for the fueling system of an automotive vehicle powered by an internal combustion engine, said fueling system including a fuel line for delivering fuel to said engine, said fuel filter comprising a housing having an inlet connected in said fuel line for receiving fuel and an outlet connected in said fuel line through which fuel is communicated to said internal combustion engine, said housing defining a flow path between the inlet and outlet for communicating fuel from said inlet to said outlet, and an activated charcoal sorbent for removing polynuclear aromatic hydrocarbon compounds from said fuel, said sorbent being located within said housing in said flow path, said flow path including means for directing substantially all of the fuel communicated through said inlet through the sorbent.
Fuel filter for an internal combustion engine comprising a housing having an inlet for receiving fuel and an outlet through which fuel is communicated to said internal combustion engine, said housing defining a flow path between the inlet and outlet for communicating fuel from said inlet to said outlet, an activated charcoal sorbent for removing polynuclear aromatic hydrocarbon compounds from said fuel, said sorbent being located within said housing in said flow path so that substantially all of the fuel communicated through said inlet is also communicated through the sorbent, and filtering media for removing contaminants from said fuel mounted in said housing downstream from said sorbent whereby said fuel communicated from said inlet first through said sorbent and then through said filtering media.
Dependencies are inferred from the claim text.