Nitrogen pumping from a tank truck
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United States of America Patent
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Jan 1, 2019
Grant Date -
Nov 2, 2017
app pub date -
Apr 27, 2016
filing date -
Apr 27, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A method of pumping a liquid with a tank truck, power is transferred from a diesel engine through a automatic transmission device to a triplex pump, wherein the triplex pump has a fluid provided to an inlet, an fluid outlet pressure and a fluid outlet flow rate, the diesel engine has a rotational speed, and the automatic transmission has an outlet rotational speed, and has multiple gear ratios is provided. The method comprising determining a delta P by comparing the fluid outlet pressure of the triplex pump to a predetermined pressure, determining a delta F by comparing the fluid outlet flow rate of the triplex pump to a predetermined flow rate, adjusting the rotational speed of the diesel engine to reduce the delta P and delta F, wherein the rotational speed of the diesel engine is held constant once either the delta P or the Delta F is approximately zero.
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