Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Filling with exhausting the receiver
Patent
1994-09-30
1998-06-16
Jacyna, J. Casimer
Fluent material handling, with receiver or receiver coacting mea
Diverse fluid containing pressure filling systems involving...
Filling with exhausting the receiver
141207, 141302, 141383, 141387, B65B 104
Patent
active
057656029
ABSTRACT:
An apparatus and method for efficiently metering and transferring a cryogenic liquid, such as liquefied natural gas, from a storage vessel to, for example, a vehicle fuel tank. The apparatus incorporates a programmable controller, a motor-driven pump and a network of conduits with motor-operated valves and liquid sensors for effecting a priming of the pump with liquid free of vapor and a cool-down of the flow passages prior to a transfer operation for ensuring that a vapor-free liquid is delivered. A pair of flow meters, one for liquid and the other for returned vapor, allows a reliable determination of the amount of liquid delivered to--and remaining in--a receiving vessel. The apparatus employs a delivery nozzle with quick-disconnect valved fittings and a delivery nozzle incorporating features which allow it to be handled by an operator without the use of heavy gloves. The method of transferring a cryogenic liquid employs an operating sequence with programmed time delays for ensuring that the liquid pump is properly primed and that the transfer apparatus is cooled down before liquid transfer begins.
REFERENCES:
patent: 2359648 (1944-10-01), Jones
patent: 5035271 (1991-07-01), Carmack et al.
patent: 5236023 (1993-08-01), Mohr
patent: 5301723 (1994-04-01), Goode
patent: 5323808 (1994-06-01), Shimizu
patent: 5433163 (1995-07-01), McKiernan
Adkins Roy E.
Sutton Harold E.
Cryogenic Fuels Inc.
Douglas Steven O.
Jacyna J. Casimer
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