Methods and systems for compressed natural gas (CNG)

A vehicle comprising,

• an engine;
• a vehicle chassis;
• and
• a compressed natural gas fuel system, operationally engaged with the engine and mounted to the chassis, the compressed natural gas fuel system having
• a frame assembly having
• a first side and a second side, each at least partly defined by a support member having
• a base plate, and
• a connector plate engaged to the base plate,
• a connecting member having
• a first end engaged to the first side, and
• a second end having an offset from and facing opposite from the first end engaged to the second side,
• a first container and a second container, each configured to house compressed natural gas, and engaged to and substantially shrouded by the at least one of the first side or the second side of the frame assembly, and
• a first manifold and a second manifold, each engaged to and substantially shrouded by the frame assembly.

A frame assembly for a compressed natural gas fuel system intended to fuel a vehicle engine, comprising:

• a first side and a second side, each side configured to partly define an interior space;
• a connecting member engaged between the first side and the second side;
• at least one container supported by and partly located within the interior space of at least one of the first side or the second side, wherein the at least one container is configured to house compressed natural gas;
• and
• the frame assembly configured to be engaged to a chassis of a vehicle at a location on the chassis that is located rearward of a cab of the vehicle or below the cab of the vehicle.