Alternative fuel cylinders
Luxfer Gas Cylinders is a leading global supplier of lightweight, high-pressure composite cylinders for the storage and transportation of compressed natural gas (CNG), a clean-burning, environmentally friendly alternative fuel (AF). Luxfer AF cylinders are also used for the storage of bio-methane, hydrogen and other industrial bulk gases.
Luxfer AF composite cylinders are 66% lighter than Type 1 all-metal steel cylinders and offer improved fuel economy, increased range and significantly reduced vehicle maintenance costs due to lessened wear on brakes, tires and suspension systems. In haulage businesses, lower vehicle weights also allow higher payloads. Further, lightweight composite cylinders can be manufactured in much larger diameters than typical all-metal steel cylinders, meaning fewer composite cylinders are required to store the same volume of CNG.
Examples of the wide variety of applications around the world where Luxfer AF cylinders are used include: CNG-powered automobiles; light-, and medium-duty trucks, buses and coaches; and truck-mounted bulk gas-transportation modules and trailers.
Luxfer manufactures the comprehensive line of G-Stor Pro Type 3 AF cylinders at its state-of-the-art manufacturing facilities in Riverside, California, and Calgary, Canada.
Many Luxfer customers require turnkey complete system solutions. In its Ratingen, Germany, manufacturing facility, Luxfer manufactures fully-wrapped Type 3 AF cylinders, and designs and assembles the world’s lightest-weight Alternative Fuel systems. Luxfer natural gas and hydrogen storage products and systems are sold to major automotive, commercial and transit manufacturers.
Luxfer’s G-Stor Pro Type 3 cylinders are made with seamless, homogenous aluminum liners fully wrapped with high-strength, aerospace-grade carbon fiber. The load-sharing liner provides an impermeable substructure for the wrapping, which creates an internal cylinder surface free from welds, joints and potential leak paths. Unlike permeable non-metallic, non-load-sharing liners, Luxfer aluminum liners present thermal dynamic characteristics that enable G-Stor Pro cylinders to be fast-filled—a significant productivity and cost benefit for busy vehicle fleets.
Large-diameter aluminum liners are typically manufactured from seamless aluminum tube, while smaller diameter liners are made from aluminum plate; cold drawing and hot spinning processes are used to create required liner geometry. Liners then undergo heat treatment to optimize mechanical properties. Since heat treatment is an exacting process, Luxfer has made significant investments in a fully automated, in-house heat-treatment facility to ensure that temperatures, heating times and dwell times are precisely controlled.
On completion of heat treatment, internal threads and outer neck configurations are precision-machined into the liner. The machining operation is followed by a quality inspection. The liner is then fully-wrapped with epoxy-impregnated high-strength carbon fiber where an optimal in-house engineered winding pattern is employed to yield a lightweight AF cylinder will be filled to a prescribed operating pressure, typically 3,600 psi.
Finally, each cylinder is hydrostatically tested, dried and thoroughly inspected. Two cylinders are removed from each manufacturing lot to undergo rigorous cycle and burst testing.
Available in an extensive range of sizes, G-Stor Pro (Type-3) cylinders consist of a Luxfer-manufactured aluminum liner fully over-wrapped with aerospace grade carbon fiber. The professional choice for fleet owners and operators, the high thermal conductivity of the aluminum liner allows the cylinder to be fast filled, ensuring a more complete fill every time to maximize your organization’s return.
Luxfer’s Dynecell® products are the leading line of lightweight high-pressure hydrogen-storage cylinders used by a number of the world’s largest OEMs that design, develop and manufacture state-of-the-art compressed hydrogen storage systems for fuel cell and internal combustion engines.
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