LNG delivery system
First Claim
1. A system for the storage and delivery of LNG to a use device comprising:
- (a) main storage means (8) for storing a quantity of LNG saturated at a pressure equal to or slightly higher than the pressure required at the use device;
(b) overflow storage means (2) for storing a quantity of non-saturated LNG;
(c) means for delivering natural gas (NG) to the use device first from said main storage means (8) and then from said overflow storage means (2); and
(d) means for saturating the LNG in the overflow storage means (2) while delivering LNG from said main storage means (8).
4 Assignments
0 Petitions
Accused Products
Abstract
Liquid natural gas is pumped into a main tank until the main tank is completely filled with liquid. Once filled, high pressure gas is pumped into the main tank. This high pressure gas forces the liquid from the main tank into an overflow tank until the liquid level in the main tank reaches a predetermined level. High pressure gas is then pumped through the main tank to the overflow tank until the LNG in the overflow tank is saturated at a pressure slightly higher than the pressure needed at the use device. Once the desired pressure is achieved the delivery of LNG to the delivery system is stopped. LNG is initially delivered from the overflow tank to the use device as a high pressure gas. Some of the high pressure gas being delivered from the overflow tank is diverted from the use device to saturate the LNG in the main tank at the desired pressure. The LNG will be delivered from the overflow tank is depleted and then the LNG will be delivered from the main tank which will have been saturated by the high pressure gas from the main tank.
-
Citations
24 Claims
-
1. A system for the storage and delivery of LNG to a use device comprising:
-
(a) main storage means (8) for storing a quantity of LNG saturated at a pressure equal to or slightly higher than the pressure required at the use device; (b) overflow storage means (2) for storing a quantity of non-saturated LNG; (c) means for delivering natural gas (NG) to the use device first from said main storage means (8) and then from said overflow storage means (2); and (d) means for saturating the LNG in the overflow storage means (2) while delivering LNG from said main storage means (8). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A vehicle mounted LNG storage and delivery system for delivering high pressure LNG to the vehicle'"'"'s engine comprising:
-
(a) main means (8) and overflow means (2) for storing LNG; (b) means for delivering LNG from the main and overflow means to the use device; (c) third means for saturating the LNG in the main means (8) at a pressure at or above that required by the engine before delivering LNG therefrom; and (d) fourth means for saturating the LNG in the overflow means (2) at a pressure at or above that required by the use device while LNG is being delivered from the main means. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A method for storing and delivering LNG to a vehicle engine comprising the steps of:
-
(a) providing main and overflow tanks mounted on said vehicle; (b) filling the main tank to capacity with LNG; (c) displacing LNG from the main tank to the overflow tank with natural gas under high pressure until the level of LNG in the main tank reaches a predetermined level; (d) continuing to deliver high pressure natural gas to said overflow tank until the LNG therein is saturated at a pressure at or above that required by the vehicle engine; (e) delivering LNG from the overflow tank to the engine and delivering high pressure natural gas from the overflow tank to the main tank until the LNG in the main tank is saturated at a pressure at or above that required by the vehicle engine; and (f) delivering LNG from the main tank to the vehicle engine after the LNG in the overflow tank is depleted. - View Dependent Claims (23, 24)
-
Specification