MODULAR PRODUCTION DESIGN OF COMPRESSED NATURAL GAS COMPRESSOR AND MULTI-SATURATION LIQUEFIED NATURAL GAS DISPENSER SYSTEMS

• US 20090071565A1
• Filed: 09/12/2008
• Published: 03/19/2009
• Est. Priority Date: 09/13/2007
• Status: Abandoned Application

• Current Assignee: Clean Energy Fuels Corp.
• Original Assignee: Clean Energy Fuels Corp.
• Inventors: Ding, Denis
• Application Number:
  US12/209,990
• Publication Number:
  US 20090071565A1
• Time in Patent Office: Days
• US Class Current: 141/18
• CPC Class Codes: F17C 2205/0376 Dispensing pistols
• CPC Class Codes: F17C 2221/033 Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
• CPC Class Codes: F17C 2223/0123 gaseous, e.g. CNG, GNC
• CPC Class Codes: F17C 2223/033 Small pressure, e.g. for liquefied gas
• CPC Class Codes: F17C 2223/036 Very high pressure (>80 bar)
• CPC Class Codes: F17C 2227/0157 Compressors
• CPC Class Codes: F17C 2250/034 using wireless transmissions
• CPC Class Codes: F17C 2265/065 for refuelling vehicle fuel tanks
• CPC Class Codes: F17C 2270/0139 Fuel stations
• CPC Class Codes: F17C 7/02 Discharging liquefied gases

Abstract

The present invention provides a modular natural gas compressor system for compressing natural gas so that it can be used to refuel motor vehicles. This system permits easy assembly and disassembly of compressor stations, as each individual compressor unit is shaped so that it will fit on a base structure. Specifically, the modular system is comprised of a prefabricated, mass produced base skid having at least one allowed space of standardized dimensions and at least one natural gas compressor unit, the base of which is shaped to fit in a allowed space of the base skid. Additional compressed natural gas compressor units or booster units, the bases of which are also shaped to fit in the allowed spaces of the base skid, may be added to increase the efficiency or functionality of the system. Liquefied natural gas dispenser units may also be designed to have bases that fit in the allowed spaces of the base skid, and can be added to the base skid to create a CNG compressor/LNG dispenser hybrid system. These liquefied natural gas dispenser units allow the user to select (automatically or manually) the level of saturation of the liquefied natural gas product to be dispensed by the dispenser.

Claims

1. A modular natural gas compressor system, comprising:

a base skid having two or more allowed spaces; and

a natural gas compressor unit, the base of which is shaped to fit in one of the allowed spaces of the base skid.

2. The system of claim 1, further comprising at least one booster compressor, the base of which is shaped to fit in one of the allowed spaces of the base skid.

3. The system of claim 1, further comprising at least one additional natural gas compressors, the base of which is shaped to fit in one of the allowed spaces of the base skid.

4. The system of claim 1, further comprising at least one liquefied natural gas dispensers, the base of which is shaped to fit in one of the pre-formed spaces of the base skid.

5. The system of claim 4, further comprising a dispensing nozzle coupled to each liquefied natural gas dispenser.

6. The system of claim 5, further comprising one or more liquefied natural gas supply lines capable of connection to the one or more liquefied natural gas dispensers.

7. The system of claim 6, wherein the one or more liquefied natural gas supply lines carry at least two different saturation levels of liquefied natural gas.

8. The system of claim 6, further comprising an electronic device coupled to the one or more liquefied natural gas dispensers, wherein an electronic reading enables selection of different saturation levels of liquefied natural gas.

9. The system of claim 7, further comprising depressible buttons coupled to the one or more liquefied natural gas dispensers, wherein the depressible buttons enable selection of different saturation levels of liquefied natural gas.

10. The system of claim 7, further comprising switch devices coupled to the one or more liquefied natural gas dispensers, wherein the switch devices enable selection of different saturation levels of liquefied natural gas.

11. A method for assembling a natural gas compressor system, comprising the steps of:

providing a allowed base skid with two or more substantially identically-shaped, allowed spaces; and

coupling a natural gas compressor unit to the allowed base skid by placing it in one of the allowed spaces.

12. The method of claim 11, further comprising the step of coupling at least one additional natural gas compressor unit to the allowed base skid by placing it in a allowed space.

13. The method of claim 11, further comprising the step of coupling at least one booster compressor to the allowed base skid by placing it in a allowed space.

14. The method of claim 11, further comprising the step of coupling at least one liquid natural gas compressor to the pre-formed base skid by placing it in a pre-formed space, wherein the liquid natural gas compressor has one or more dispensing nozzles.

15. The method of claim 14, further comprising the step of connecting the liquid natural gas compressor to one or more liquid natural gas supply lines, wherein the liquid natural gas supply lines carry at least two different saturation levels of liquid natural gas.

16. The method of claim 15, further comprising the step of coupling to the liquid natural gas compressor a means for selecting saturation levels of liquid natural gas.