Westport Innovations says its new tank system allows customers the ability to fuel even the largest spark-ignited liquefied natural gas engines on a single tank and deliver extended range.


The Westport LNG Tank System will be available in 120- and 150-gallon capacities and will begin shipping by mid-2013.

The Westport LNG Tank System features proprietary Westport technology. Key characteristics include:

- Current industry standard systems require two LNG tanks to operate effectively with larger SI engines and require warm (saturated) LNG. The Westport LNG Tank System is optimized for trucks running even the largest SI engines, reducing the overall fuel system costs and weight dramatically with the single-tank option.

- The 120-gallon or 150-gallon single-tank systems can run for approximately 350 to 450 miles, respectively, on cold (unsaturated) LNG fuel. Those ranges double for dual-tank configurations.

- Fuel-flexibility with the ability to carry both cold and warm LNG.

- By carrying fuel as cold LNG, the Westport LNG Tank System can increase fuel storage times and improve vehicle range by up to 10%.

- Universal system design allows for any original equipment manufacturer to integrate.

- Compared to existing compressed natural gas options, a single 150-gallon Westport LNG Tank System takes the place of three standard CNG tanks, lowering fuel storage costs and reducing overall vehicle weight by approximately 600 pounds. Additionally, LNG has shorter refueling times compared to CNG.

- Customers receive a two-year/250,000-mile warranty along with access to field service from Westport-trained personnel.

- Westport Active System Management features proprietary control algorithms and connects with standard engine controllers to allow fuel delivery to match driving patterns.

- An advanced driver display indicates not only the LNG fuel levels, but also status and diagnostic information about the tank and integrated pumps.

- Fleets with a combination of SI and Westport HPDI trucks can now rely on the same LNG refueling infrastructure due to the system's fuel-flexible capabilities.