Liquid natural gas and compressed natural gas total fueling system
First Claim
Patent Images
1. A natural gas fueling station apparatus for dispensing both liquid natural gas and compressed natural gas to natural gas vehicles or other suitable containers comprising:
- a first storage tank for storing liquid natural gas from which to supply the natural gas filling station with natural gas;
a first dispenser for dispensing liquid natural gas;
means for producing, from liquid natural gas, compressed natural gas;
a second dispenser for dispensing compressed natural gas; and
,the first dispenser and the means for producing being supplied with liquid natural gas from the first storage tank by a liquid natural gas conduit, the second dispenser being supplied with compressed natural gas from the means for producing by a means for supplying compressed natural gas.
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Accused Products
Abstract
In a combined liquid natural gas and compressed natural gas fueling station, liquid natural gas is stored in a cryogenic tank and dispensed to vehicles on demand. Compressed natural gas is produced on demand from the liquid natural gas by a high-efficiency pump and vaporizer system and dispensed directly to vehicles or stored for later dispensing. For greater efficiency, the pump and vaporizer system is powered by combustion of natural gas, including gas bled off to relieve pressure from the cryogenic tank.
79 Citations
23 Claims
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1. A natural gas fueling station apparatus for dispensing both liquid natural gas and compressed natural gas to natural gas vehicles or other suitable containers comprising:
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a first storage tank for storing liquid natural gas from which to supply the natural gas filling station with natural gas; a first dispenser for dispensing liquid natural gas; means for producing, from liquid natural gas, compressed natural gas; a second dispenser for dispensing compressed natural gas; and
,the first dispenser and the means for producing being supplied with liquid natural gas from the first storage tank by a liquid natural gas conduit, the second dispenser being supplied with compressed natural gas from the means for producing by a means for supplying compressed natural gas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of supplying both liquid natural gas and compressed natural gas from the same station for dispensing to natural gas vehicles or other suitable containers comprising the steps of:
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delivering liquid natural gas to a storage tank; dispensing liquid natural gas from the storage tank on demand to a first vehicle requiring liquid natural gas through a first dispenser; vaporizing liquid natural gas from the storage tank to produce compressed natural gas on demand; and dispensing the compressed natural gas to a second vehicle requiring compressed natural gas through a second dispenser. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification