Method of calibrating a single meter blending fuel dispensing system
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United States of America Patent
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Jan 7, 2003
Issued Date -
N/A
app pub date -
Dec 13, 2000
filing date -
Jun 18, 1999
priority date (Note) -
Expired
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Abstract
A single meter blending fuel dispensing system utilizing a pair of proportional flow control valves each having a pressure transducer positioned aft of the valve flow control mechanism. A computer controller is used to program a desired fuel mixture by varying the pressure for each flow control valve. A pressure decrease in one valve produces a corresponding pressure increase in the other valve. A third pressure transducer can be situated downstream of the valves and is set such that the pressure it receives cannot exceed that of the two valve pressures. Flow meters can be substituted for the pressure sensors. A calibration method for calibrating the positive displacement meter is also disclosed. At installation the positive displacement meter is at its most accurate and is synchronized with the less accurate pressure sensors or flow meters. As time passes and the positive displacement meter wears it can be re-calibrated using the baseline data and the pressure sensors or flow meters which are not subject to mechanical wear.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- GILBARCO INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Long, Joseph D | Greensboro, NC | 23 | 920 |
Poleshuk, Edward S | Greensboro, NC | 4 | 94 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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