Method and apparatus for dispensing compressed natural gas and liquified natural gas to natural gas powered vehicles
US6899146B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2003 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | Jun 28, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2270/0139
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.