Method and Structure for Prevention of Incorrect Fueling Operations for Diesel-Powered Vehicles
First Claim
1. An apparatus for alerting a refueler to the attempted introduction of gasoline into a diesel-powered vehicle, comprising:
- at least one magnet attached to a gasoline fuel nozzle; and
a magnetic field sensor attached to the entrance of a fill tube on a diesel-powered vehicle to when the gasoline fuel nozzle is being inserted into the fill tube on the diesel-powered vehicle.
1 Assignment
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Accused Products
Abstract
A method and structure are described for preventing the accidental introduction of gasoline into the fuel system of a diesel-powered vehicle. In a first preferred embodiment, a gasoline fuel nozzle is configured with a magnet, such as magnetic strips, and the entrance to a fill tube of a diesel-powered is configured with a magnetic field sensor ring. When an incorrect fueling operation, such as the introduction of gasoline into the fuel tank of the diesel-powered vehicle, is attempted the sensor ring alerts the operator visually and/or audibly before fueling starts, thereby preventing incorrect fueling. In alternative embodiments, sensing of an attempted incorrect fueling operation may require only the sensor ring.
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Citations
17 Claims
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1. An apparatus for alerting a refueler to the attempted introduction of gasoline into a diesel-powered vehicle, comprising:
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at least one magnet attached to a gasoline fuel nozzle; and a magnetic field sensor attached to the entrance of a fill tube on a diesel-powered vehicle to when the gasoline fuel nozzle is being inserted into the fill tube on the diesel-powered vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A fill tube filler sensor ring for a diesel powered vehicle, comprising:
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a base adapted to be attached to the fill tube of a diesel-powered vehicle; a magnetic field sensor attached the base for sensing the passage of a magnetic material into the filler tube; an audible or visual alarm attached to the base for indicating to a refueler that a gasoline fuel nozzle having a magnetic material is passing the magnetic field sensor. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method of making a filler tube sensor ring, comprising:
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providing a base; providing means for attaching the base to the filler tube of a diesel-powered vehicle; providing a magnetic field sensor attached to the base; and providing a warning device attached to base for warning when a gasoline nozzle is inserted into the filler tube of a diesel vehicle.
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16. A method for detecting the insertion of a gasoline fuel nozzle into a fill tube of a fuel tank of a diesel-powered vehicle, comprising the steps of:
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inserting a gasoline fuel nozzle having a magnet into the fill tube of a diesel-powered vehicle, the fill tube including a magnetic sensor for detecting the magnet and the fill tube providing an observable or audible alarm; observing or hearing the alarm and removing the gasoline fuel nozzle from the fill tube of the fuel tank.
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17. A method of ensuring that gasoline is not inserted into the tank of a diesel vehicle, comprising providing a gasoline nozzle having a magnet attached thereto so that when the magnet is inserted into a filler tube of a diesel vehicle having a magnetic field sensor, the gasoline nozzle causes a change to the magnetic field which change is detected by the magnetic field sensor to cause an alarm.
Specification