Propane Autogas – Conversions and Infrastructure

Volvo Trucks to Introduce New Methane-Diesel Truck

June 07, 2011

GOTEBORG, SWEDEN – Volvo Trucks said it began accepting orders for its new Volvo FM MethaneDiesel truck on May 31 from customers in Europe. The truck runs on liquefied methane gas and diesel, and is suited for long and heavy transport applications.

Volvo FM MethaneDiesel truck
Volvo FM MethaneDiesel truck

Limited series production of the truck will get under way in August. This year Volvo expects to sell 100 methane-diesel trucks in Sweden, the U.K. and the Netherlands -- markets that offer high availability of liquefied gas. In 2012, the company expects to increase production to 400 trucks and expand sales to additional markets.

The new Volvo FM MethaneDiesel has a 13-liter engine producing 460 horsepower and 2300 Newton meters of torque. The fuel consists of up to 75 percent liquefied methane gas and the rest diesel, but this proportion may vary – depending on how the vehicle is used, Volvo Trucks said. Compared with conventional gas-powered engines where the fuel is ignited by spark plugs, the methane-diesel alternative offers 30 to 40 percent higher efficiency, which means that fuel consumption is cut by up to 25 percent.

In the past year, the truck has undergone testing by Swedish transport company Gotene Kyltransport.

"Our experiences from running on methane-diesel are excellent,” said Ulf Johansson, president of Götene Kyltransport. “This is definitely a solution for the future. If the price of gas is right, I expect that up to 80 percent of our truck fleet will consist of Volvo's methane-diesel trucks within the next five years."

Thanks to the use of diesel technology combined with liquefied gas power, Volvo's methane-diesel truck can considerably extend its operating range compared with a conventional compressed-gas truck powered by an engine using spark-plug technology, Volvo Trucks said.

From a purely technical viewpoint, the truck maker said, there are no major differences compared with a conventional diesel engine. The main difference is in the gas injectors, which are fitted on a plate between the inlet duct and the engine block. In addition, a Thermos-like fuel tank keeps the gas liquefied at a temperature of -140 degrees C under reasonable pressure. A special catalytic converter is another feature developed particularly for methane gas-powered engines. However, the basic engine itself is a diesel unit; operating reliability with gas power is the same as for diesel.

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