Chart introduces ‘cold fuel’ solution for LNG vehicle fuel systems

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WASHINGTON, D.C. — Chart Industries has launched a “cold fuel” solution for liquefied natural gas (LNG) vehicle fuel systems at the ACT Expo in Washington, D.C.

Chart’s Cold-Fuel Pressure Builder (CPB) is designed to operate when under-saturated or “cold fuel” is dispensed, enabling a modest increase (typically 4.0 to 6.5%) in fuel density.

Chart officials say the product provides adequate pressure for drive-away after fueling; actively saturates the fuel in the vehicle tank, if necessary; and utilizes the vehicle’s electrical system for saturation energy. The company says the CPB also retrofits to any Chart LNG vehicle fuel system.

Chart says the system was developed based in the input of industry partners, such as fuel station operators and truck manufacturers, to work with either spark-ignition (SI) or compression-ignition (CI) indirect injection (IDI) fuel systems.

Previously, LNG fuel stations were required to deliver LNG at two different pressures and saturation temperatures to support SI and CI-IDI, as well as direct injection (CI-DI), engines, driving fuel station infrastructure complexity and cost, according to Chart.

Chart’s new system is designed to accept cold fuel (saturated at less than 60 psi) and consistently support most engine pressure requirements.

Officials say the CPB, together with existing Chart LNG vehicle fuel systems, “will work safely and reliably and with minimized chance of venting during both vehicle operation and refuelling. This feature enables simplified fuel station design and reliable SI engine operation independent of LNG fuel station capability.”

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