A mobile self-contained self-powered station having a plurality of vessels delivers a pressurized fluid to a receiving tank (e.g., a fuel tank of a hydrogen-powered vehicle) without using mechanical compression, external electric power, or other external utilities. The station includes first and sec
A mobile self-contained self-powered station having a plurality of vessels delivers a pressurized fluid to a receiving tank (e.g., a fuel tank of a hydrogen-powered vehicle) without using mechanical compression, external electric power, or other external utilities. The station includes first and second vessels, a conduit in fluid communication with the receiving tank and each of the first and second vessels, means for transferring at least a portion of a quantity of the pressurized fluid from the first vessel to the receiving tank, means for measuring continuously a pressure differential between the increasing pressure in the receiving tank and the decreasing pressure in the first vessel, means for discontinuing the transfer from the first vessel when a predetermined limit value is reached, and means for transferring at least a portion of a quantity of the pressurized fluid from the second vessel to the receiving tank.
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1. A self-powered station having a plurality of vessels for delivering a pressurized fluid to a first receiving tank without using mechanical compression, external electric power, or other external utilities, comprising:a first vessel containing a first quantity of the pressurized fluid at a first p
1. A self-powered station having a plurality of vessels for delivering a pressurized fluid to a first receiving tank without using mechanical compression, external electric power, or other external utilities, comprising:a first vessel containing a first quantity of the pressurized fluid at a first pressure;a second vessel containing a second quantity of the pressurized fluid at a second pressure;a conduit having a first end in fluid communication with the first receiving tank and a second end in controllable fluid communication with each of the first vessel and the second vessel;means for transferring at least a portion of the first quantity of the pressurized fluid from the first vessel through the conduit to the first receiving tank without using mechanical compression, external electric power, or other external utilities, thereby resulting in an increasing pressure in the first receiving tank and a decreasing pressure in the first vessel, the increasing pressure in the first receiving tank being less than the second pressure of the pressurized fluid in the second vessel;means for measuring continuously a pressure differential between the increasing pressure in the first receiving tank and the decreasing pressure in the first vessel;means for discontinuing the transfer of the pressurized fluid from the first vessel when a predetermined limit value is reached; andmeans for transferring at least a portion of the second quantity of the pressurized fluid from the second vessel through the conduit to the first receiving tank without using mechanical compression, external electric power, or other external utilities. 2. A self-powered station as in claim 1, further comprising means for moving the self-powered station from a first location near the first receiving tank to a second location near a second receiving tank. 3. A self-powered station, as in claim 1, further comprising an insulation material disposed between the first or second vessel and a vessel adjacent the first or second vessel. 4. A self-powered station as in claim 1, further comprising a gas-permeable roof adapted to vent the pressurized fluid in a gaseous state. 5. A self-powered station as in claim 1, further comprising:means for determining when the plurality of vessels are empty or near empty;means for monitoring the self-powered station from a monitor in a remote location: andmeans for reporting to the monitor from the self-powered station a determination that the plurality of vessels are empty or near empty. 6. A self-powered station as in claim 1, wherein the pressurized fluid is a gas. 7. A self-powered station as in claim 1, wherein the pressurized fluid is hydrogen. 8. A self-powered station as in claim 1, wherein the limit value of the pressure differential is zero. 9. A self-powered station as in claim 1, wherein the first receiving tank is a vehicle storage tank. 10. An automated mobile self-contained self-powered station having a plurality of vessels for delivering a pressurized hydrogen gas at 5,000 psig or greater to a first hydrogen-powered vehicle fuel storage tank without using mechanical compression, external electric power, or other external utilities, comprising;a first vessel containing a first quantity of the pressurized hydrogen gas at a first pressure;a second vessel containing a second quantity of the pressurized hydrogen gas at a second pressure;a conduit having a first end in fluid communication with the first hydrogen-powered vehicle fuel storage tank and a second end in controllable fluid communication with each of the first vessel and the second vessel;means for transferring at least a portion of the first quantity of the pressurized hydrogen gas from the first vessel through the conduit to the first hydrogen-powered vehicle fuel storage tank without using mechanical compression, external electric power, or other external utilities, thereby resulting in an increasing pressure in the first hydrogen-powered vehicle fuel storage tank an d a decreasing pressure in the first vessel, the increasing pressure in the first hydrogen-powered vehicle fuel storage tank being less than the second pressure of the pressurized hydrogen gas in the second vessel;means for measuring continuously a pressure differential between the increasing pressure in the first hydrogen-powered vehicle fuel storage tank and the decreasing pressure in the first vessel;means for discontinuing the transfer of the pressurized hydrogen gas from the first vessel when a predetermined limit value is reached;means for transferring at least a portion of the second quantity of the pressurized hydrogen gas from the second vessel through the conduit to the first hydrogen-powered vehicle fuel storage tank without using mechanical compression, external electric power, or other external utilities;means for moving the mobile self-contained self-powered station from a first location near the first hydrogen-powered vehicle fuel storage tank to a second location near a second hydrogen-powered vehicle fuel storage tank;means for determining when the plurality of vessels are empty or near empty;means for monitoring the mobile self-contained self-powered station from a monitor in a remote location; andmeans for reporting to the monitor from the mobile self-contained self-powered station a determination that the plurality of vessels are empty or near empty. 11. A method for delivering a pressurized fluid from a self-powered station to a first receiving tank without using mechanical compression, external electric power, or other external utilities, the self-powered station having a plurality of vessels, including at least a first vessel containing a first quantity of the pressurized fluid at a first pressure and a second vessel containing a second quantity of the pressurized fluid at a second pressure, comprising the steps of:providing a conduit having a first end and a second end in controllable fluid communication with each of the first vessel and the second vessel;placing the first end of the conduit in fluid communication with the first receiving tank;transferring at least a portion of the first quantity of the pressurized fluid from the first vessel through the conduit to the first receiving tank without using mechanical compression, external electric power, or other external utilities, thereby resulting in an increasing pressure in the first receiving tank and a decreasing pressure in the first vessel, the increasing pressure in the first receiving tank being less than the second pressure of the pressurized fluid in the second vessel;measuring continuously a pressure differential between the increasing pressure in the first receiving tank and the decreasing pressure in the first vessel;designating a limit value of the pressure differential at which a transfer of the pressurized fluid from the first vessel to the first receiving tank is to be discontinued;discontinuing the transfer of the pressurized fluid from the first vessel when the limit value is reached; andtransferring at least a portion of the second quantity or the pressurized fluid from the second vessel through the conduit to the first receiving tank without using mechanical compression, external electric power, or other external utilities. 12. A method as in claim 11, wherein the self-powered station is mobile or portable, comprising the further step of moving the self-powered station from a first location near the first receiving tank to a second location near a second receiving tank. 13. A method as in claim 11, wherein the first receiving tank is a vehicle fuel storage tank. 14. A method as in claim 11, wherein the pressurized fluid is a gas. 15. A method as in claim 11, wherein the pressurized fluid is hydrogen. 16. A method as in claim 11, wherein the limit value of the pressure differential is zero. 17. An automated method for delivering a pressurized hydrogen gas at 5,000 psig or greater from a mobile self-contained self-powered station to a first hydrogen-powered vehicle fuel storage tank without using mechanical compression, external electric power, or other external utilities, the self-powered station having a plurality of vessels, including at least a first vessel containing a first quantity of the pressurized hydrogen gas at a first pressure and a second vessel containing a second quantity of the pressurized hydrogen gas at a second pressure, comprising the steps of:providing a conduit having a first end and a second end in controllable fluid communication with each of the first vessel and the second vessel;placing the first end of the conduit in fluid communication with the first hydrogen-powered vehicle fuel storage tank;transferring at least a portion of the first quantity of the pressurized hydrogen gas from the first vessel through the conduit to the first hydrogen-powered vehicle fuel storage tank without using mechanical compression, external electric power, or other external utilities, thereby resulting in an increasing pressure in the first hydrogen-powered vehicle fuel storage tank and a decreasing pressure in the first vessel, the increasing pressure in the first hydrogen-powered vehicle fuel storage tank being less than the second pressure of the pressurized hydrogen gas in the second vessel;measuring continuously a pressure differential between the increasing pressure in the first hydrogen-powered vehicle fuel storage tank and the decreasing pressure in the first vessel;designating a limit value of the pressure differential at which a transfer of the pressurized hydrogen gas from the first vessel to the first hydrogen-powered vehicle fuel storage tank is to be discontinued;discontinuing the transfer of the pressurized hydrogen gas from the first vessel when the limit value is reached;transferring at least a portion of the second quantity of the pressurized hydrogen gas from the second vessel through the conduit to the first hydrogen-powered vehicle fuel storage tank without using mechanical compression, external electric power, or other external utilities; andmoving the mobile self-contained self-powered station from a first location near the first hydrogen-powered vehicle fuel storage tank to a second location near a second hydrogen-powered vehicle fuel storage tank. 18. A method for delivering a pressurized fluid from a self-powered station to at least one receiving tank without using mechanical compression, electric power, or other external utilities, the self-powered station having n+1 vessels, wherein n is an integer greater than zero, each vessel containing a quantity of the pressurized fluid having a pressure which decreases as the quantity decreases, comprising the steps of:(a) providing a conduit having a first end and a second end in controllable fluid communication with each of the vessels;(b) selecting the receiving tank to receive the pressurized fluid;(c) engaging the first end of the conduit in fluid communication with the selected receiving tank, the selected receiving tank having a pressure which increases as the quantity of pressurized fluid is delivered to the selected receiving tank;(d) selecting a vessel presently containing a quantity of pressurized fluid at a pressure greater than a present pressure of the pressurized fluid in the selected receiving tank;(e) transferring at least a portion of the quantity of the pressurized fluid from the selected vessel through the conduit to the selected receiving tank without using mechanical compression, electric power, or other external utilities, thereby resulting in an increasing pressure in the selected receiving tank and a decreasing pressure in the selected vessel from which the pressurized fluid is being transferred, the increasing pressure in the selected receiving tank being less than the pressure of the pressurized fluid in at least one other vessel;(f) measuring continuously a pressure differential between the increasing pressure in the selected receiving tank and the decrea sing pressure in the selected vessel from which pressurized fluid is being transferred;(g) designating a limit value of the pressure differential at which a transfer of the pressurized fluid from the selected vessel is to be discontinued;(h) discontinuing the transfer of the pressurized fluid from the selected vessel when the limit value is reached;(i) selecting another vessel presently containing a quantity of the pressurized fluid at a pressure greater than the present pressure of the pressurized fluid in the selected receiving tank;(j) transferring at least a portion of another quantity of the pressurized fluid from the another selected vessel through the conduit to the selected receiving tank without using mechanical compression, electrical power, or other external utilities;(k) repeating steps (d) through (j) until the selected receiving tank is filled with pressurized fluid at a desired filled pressure; and(l) disengaging the first end of the conduit from fluid communication with the selected receiving tank. 19. A method as in claim 18, comprising the further steps of:(m) selecting another receiving tank to receive the pressurized fluid;(n) repeating steps (c) through (n) until the pressurized fluid can no longer be delivered from the self-powered station to the last selected receiving tank without using mechanical compression, electric power, or other external utilities. 20. A method as in claim 19, comprising the further steps of:(o) refilling at least two of the n+1 vessels with the pressurized fluid, each refilled vessel containing a quantity of the pressurized fluid having a pressure which decreases as the quantity decreases; and(p) repeating steps (b) through (p).
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