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Method and apparatus for dispensing compressed natural gas and liquified natural gas to natural gas powered vehicles

United States Patent

May 31, 2005
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Deployment Office Website
L/CNG - Refueling Systems
A fueling facility and method for dispensing liquid natural gas (LNG), compressed natural gas (CNG) or both on-demand. The fueling facility may include a source of LNG, such as cryogenic storage vessel. A low volume high pressure pump is coupled to the source of LNG to produce a stream of pressurized LNG. The stream of pressurized LNG may be selectively directed through an LNG flow path or to a CNG flow path which includes a vaporizer configured to produce CNG from the pressurized LNG. A portion of the CNG may be drawn from the CNG flow path and introduced into the CNG flow path to control the temperature of LNG flowing therethrough. Similarly, a portion of the LNG may be drawn from the LNG flow path and introduced into the CNG flow path to control the temperature of CNG flowing therethrough.
Bingham; Dennis A. (Idaho Falls, ID), Clark; Michael L. (Menan, ID), Wilding; Bruce M. (Idaho Falls, ID), Palmer; Gary L. (Shelley, ID)
Battelle Energy Alliance, LLC (Idaho Falls, ID)
10/ 435,166
May 9, 2003
The United States Government has certain rights in this invention pursuant to Contract No. DE-AC07-99ID13727, and Contract No. DE-AC07-05ID14517 between the United States Department of Energy and Battelle Energy Alliance, LLC.