Dispensing – With recorder – register – indicator – signal or exhibitor – Flow and/or overflow type
Patent
1993-01-22
1994-11-01
Kashnikow, Andres
Dispensing
With recorder, register, indicator, signal or exhibitor
Flow and/or overflow type
62 501, 62 506, 222 1, 222 54, 222 61, 222 64, 222 71, 222318, 239125, 239132, 2391325, B67D 5378
Patent
active
053601394
ABSTRACT:
An automated fueling facility allows untrained persons to safely dispense homogenous phase liquid methane from a cryogenic storage tank into a motor vehicle. The fueling facility automatically maintains pressure on the liquid methane within a predetermined safe operating range using methane gas trapped in the cryogenic storage tank. The pressure on the liquid methane is at least set equal to a set pressure equal to the sum of the saturation pressure of the liquid methane plus an additional amount to help to ensure that it remains in a fully saturated condition after absorbing any heat during pumping from the storage tank. A pump is cooled by placing it in the storage tank and circulating liquid methane through the pump and back into the storage tank. A dispenser, including nozzle for connecting to a motor vehicle, is cooled by circulating liquid through the nozzle and back to the storage tank through a receptacle on the dispenser to which the nozzle is connected. No dispensing of liquid methane into a motor vehicle tank is allowed to begin without the pressure of the liquid methane being within the operating range and the pump and nozzle pre-cooled. No additional pressure is built in the storage tank than is necessary to bring the pressure of the liquid methane to the set pressure.
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Hubbard Marc A.
Hydra Rig, Inc.
Kashnikow Andres
Kaufman Joseph A.
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