Momentum Fuel Technologies has released two roof-mounted configurations of its compressed natural gas fuel system solutions for Class 6 to Class 8 trucks designed for the refuse industry.

The roof-mounted system is available in both four-tank 70 diesel gallon equivalent and five-tank 87DGE configurations. The systems are designed to be lighter and more efficient when compared to industry standard 60DGE/75DGE roof-mounted configurations, according to Momentum.

The system is made of high-strength steel and lightweight aluminum. The tanks are made of 3M nanoparticle-enhanced matrix resin technology, designed for light weight.

“Our refuse customers continue to tell us they are interested in improved natural gas options, and the roof-mount system is designed to support the unique needs of this important market segment,” said W.M. “Rusty” Rush, chairman, CEO and president, Rush Enterprises.

The system’s fuel management module houses the electronics, fuel filter and fuel-fill receptacles and is located where the driver fuels the truck.  Constructed of durable aircraft aluminum with a powder-coated exterior finish and Huck-bolted access cover, the compact design incorporates Parker O-ring fittings, gauges, fill ports and valves with a simplified filter access through the bottom of the module.  The FMM works in conjunction with the RushCare telematics platform, allowing fleet managers to monitor their usage stats and better manage their fuel consumption. 

Fuel utilization is improved due in part to an efficient fuel pressure regulator with a high-capacity filter manufactured by Parker, which is also part of the FMM.  With this regulator, drivers can go further on a tank of fuel when compared to current system limitations, as the regulator enables the vehicle to operate from 3,600 pounds per square inch when full to a minimum 230 PSI.  The regulator is designed to reduce leak points and weight, and the high-capacity filter is larger than most competitive products, so it can be serviced less frequently.

“With the technologies built into our system, the usable capacity of these new roof-mount systems is a game changer,” said Mike Zimmerman, general manager of Momentum Fuel Technologies.  “Our customers can now have the range of five tanks in a four-tank package.”

Momentum is a division of Rush Enterprises, offering complete CNG fuel system solutions for Class 6 to Class 8 trucks.