Vehicle mounted LNG delivery system
First Claim
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1. A vehicle mounted delivery system for natural gas, comprising:
- a) a first tank for storing a quantity of liquid natural gas;
b) means for storing a quantity of compressed natural gas;
c) means for delivering the compressed natural gas to said first tank to pressurize and maintain the pressure in said first tank at a predetermined value; and
d) means for delivering said pressurized liquid natural gas from said first tank.
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Abstract
The present invention uses an on-board source of compressed natural gas (CNG) to pressurize the LNG in the vehicle'"'"'s LNG storage tanks such that high pressure natural gas can be delivered to the use device. More than one LNG storage tank can be used without increasing the amount of CNG required if the storage tanks are connected together in series so that the upstream storage tank pressurizes the downstream storage tank.
78 Citations
12 Claims
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1. A vehicle mounted delivery system for natural gas, comprising:
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a) a first tank for storing a quantity of liquid natural gas; b) means for storing a quantity of compressed natural gas; c) means for delivering the compressed natural gas to said first tank to pressurize and maintain the pressure in said first tank at a predetermined value; and d) means for delivering said pressurized liquid natural gas from said first tank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicle mounted delivery system for natural gas, comprising:
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a) means for storing a supply of compressed natural gas; b) a plurality of tanks for storing a quantity of liquid natural gas, said tanks being connected in series with one another such that liquid natural gas flows from the upstream tank to the downstream tank; c) means for delivering the compressed natural gas to the most upstream tank to pressurize it, said upstream tank, in turn, pressurizing the down stream tanks; and d) means associated with said most down stream tank for converting LNG to natural gas and for supplying pressurized natural gas from the most downstream tank. - View Dependent Claims (10, 11, 12)
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Specification