MBtech Highlighting New 4-Cylinder, 6-Liter Natural Gas Engine at Vienna Engine Symposium

At the 31^st Vienna Engine Symposium this week, MBtech will showcase an innovation project consisting of a 4-cylinder, 6-liter natural gas combustion engine for medium-duty commercial vehicles.

The engine is being developed to be considerably more compact and lighter than current 6-cylinder medium-duty engines while also offering significant advantages with regard to mechanical friction loss. MBtech’s engineers have set the goal of achieving at least the same power and torque ratings despite running on CNG and having two cylinders less.

The 4-cylinder engine uses a stoichiometric air fuel ratio (Lambda = 1) and a modular design that enables hybridization. The design as an SI engine enables it to utilize lightweight materials for the crankcase and cylinder head.

The combination of the innovative lightweight design and operating concept of the four-cylinder engine will enable goods to be transported commercially in a more environmentally friendly and cost-effective fashion in future, MBtech says.