Refrigeration – Storage of solidified or liquified gas – With vapor discharged from storage receptacle
Patent
1993-02-12
1994-12-20
Kilner, Christopher
Refrigeration
Storage of solidified or liquified gas
With vapor discharged from storage receptacle
62 502, 62 504, 123525, 123527, F17C 902, F02M 2102
Patent
active
053737008
ABSTRACT:
A natural gas vehicle fuel delivery system regulates the pressure of LNG which is vaporized and delivered to an engine. The system employs dual regulator valves responsive to the gas phase pressure of a storage tank to either directly couple vapor produced from a heat exchanger to an engine combustion system, or to divert that vapor through another heat exchanger contained within the tank itself. This additional heat exchanger maintains the pressure within the tank at the desired level despite heavy fuel demands of the engine. The system functions independent of liquid level in the storage tank. When multiple LNG storage tanks are used, they are coupled in parallel so that they both produce gas and are concurrently regulated in the gas phase portion. A pressure initializing structure and process are also provided.
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Hancock Earl C.
Kilner Christopher
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