Precision fuel dispenser
First Claim
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1. A precision fuel dispenser comprising:
- a fuel dispenser for delivering fuel along a fuel delivery path;
a flow rate modulator in said fuel delivery path; and
a control system operatively associated with said flow rate modulator for regulating the rate of flow in said fuel delivery path during a portion of a fueling operation to define a flow-rate-dependent fueling process including controlling the rate of flow in said delivery path to provide a defined average flow rate during a portion of the fueling operation by increasing or decreasing the flow rate above or below the defined average flow rate to compensate for any periods that varied from the defined average flow rate.
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Abstract
A fuel dispenser for delivering fuel along a fuel delivery path, a flow rate modulator in the fuel delivery path and a control system operatively associated with the flow rate modulator for regulating the rate of flow in the fuel delivery path during a fueling operation to achieve a flow-rate-dependent result. The precision fuel dispenser may further include a flow transducer in the fuel delivery path configured to provide a flow transducer signal representing a volume of fuel flow in the fuel delivery path to the control system.
94 Citations
37 Claims
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1. A precision fuel dispenser comprising:
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a fuel dispenser for delivering fuel along a fuel delivery path; a flow rate modulator in said fuel delivery path; and a control system operatively associated with said flow rate modulator for regulating the rate of flow in said fuel delivery path during a portion of a fueling operation to define a flow-rate-dependent fueling process including controlling the rate of flow in said delivery path to provide a defined average flow rate during a portion of the fueling operation by increasing or decreasing the flow rate above or below the defined average flow rate to compensate for any periods that varied from the defined average flow rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of delivering fuel comprising:
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delivering fuel along a fuel delivery path; modulating fuel flow in said fuel delivery path; and controlling the modulation of fuel flow to regulate the rate of flow in said fuel delivery path during a portion of a fueling operation to achieve a flow-rate-dependent result by increasing or decreasing the flow rate above or below the flow-rate-dependent result to compensate for any periods that varied from the flow-rate-dependent result. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method of controlling fuel flow along a fuel path comprising:
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delivering fuel along a fuel delivery path; providing a desired flow rate for regulating the rate of flow in the fuel delivery path during a fueling operation; providing an actual flow rate; deriving a forcing function according to a difference between the desired and actual flow rate; modulating the flow of fuel in the fuel path according to the forcing function; and regulating the rate of flow in said fuel delivery path during a fueling operation to achieve a flow-rate-dependent result by increasing or decreasing the flow rate above or below the flow-rate-dependent result to compensate for any periods that varied from the flow-rate-dependent result.
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Specification