Two fluid dispensing apparatus to supply fuel and reductant to a vehicle
AssigneeFord Global Technologies, LLC
InventorDerek Albert Channing
Life of this patent
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Abstract
A fuel filling system is disclosed for dispensing two fluids to a vehicle, which ensures that a reductant tank is filled during dispensing of fuel.
Claims31
A dispensing system for periodically dispensing a primary fluid from a primary reservoir disposed in a dispenser to a primary tank onboard a vehicle and dispensing a secondary fluid from a secondary reservoir disposed in the dispenser to a secondary tank onboard the vehicle, both the primary fluid and the secondary fluid are dispensed through a dispensing nozzle coupled to the primary reservoir and the secondary reservoir, comprising:
- a primary dispensing passageway through which the secondary fluid flows from the secondary reservoir to the dispensing nozzle;
- a primary valve located in said primary dispensing passageway;
- a secondary valve located in said secondary dispensing passageway;
- and
- a retaining means for retaining said primary valve in a closed position when said secondary valve is in a closed position.
A system onboard a vehicle for periodically receiving a primary fluid and a secondary fluid from a dispensing system, the dispensing system includes a primary fluid reservoir, a secondary fluid reservoir, and a dispensing nozzle coupled to the primary fluid reservoir and the secondary fluid reservoir, comprising:
- a filler neck coupled to the exterior of the vehicle into which a dispensing nozzle is coupled, the receiving of the primary fluid and the secondary fluid occurs only when the dispensing nozzle is coupled with said filler neck;
- a primary fluid tank disposed on the vehicle;
- a primary filling passageway connected to said filler neck at an upstream end of said primary filling passageway and connected to said primary fluid tank at a downstream end of said primary filling passageway, said primary filling passageway conducts primary fluid from said filler neck to said primary fluid tank;
- a secondary fluid tank disposed on the vehicle;
- a secondary filling passageway disposed in said filler neck at an upstream end of said secondary filling passageway and connected to said secondary fluid tank;
- and
- a preventing means to prevent receiving of the primary fluid until flow of secondary fluid through said secondary filling passageway is initiated.
A method for periodically dispensing a primary fluid from a primary reservoir disposed in a dispensing system to a primary tank onboard a vehicle and periodically dispensing a secondary fluid from a secondary reservoir disposed in a dispensing system to a secondary tank onboard a vehicle, comprising the steps of:
- dispensing the secondary fluid from the secondary fluid reservoir to the secondary fluid tank when a level in said secondary fluid tank is less than a predetermined level;
- and
- preventing flow of the primary fluid from the primary fluid reservoir to the primary fluid tank when a level in said secondary fluid tank is less than a predetermined level.
Dependencies are inferred from the claim text.