G946 Gas engine

The Liebherr gas engine G946 with 6 cylinders in inline-arrangement and a displacement of 12 liters has a maximum power of 246kW at 50Hz and of 286kW at 60Hz, respectively. With a mechanical efficiency rating of over 41%, gas engines from Liebherr offer the best efficiency values of their perfomance category. A "plug & play" solution guarantees an easy integration into every application.
Power rating at 50Hz / 60Hz 246 kW / 246 kW
Rated speed at 50Hz / 60Hz 1,500 min¯¹ / 1,800 min¯¹
Mechanical efficiency 41.5 %
Fuel Biogas / Natural gas

Technical data

Full equipment availability Yes
Configuration In-line engine
Number of cylinders 6
Displacement 12.0 dm³
Bore 130 mm
Stroke 150 mm
Dry weight 1,250 kg
Dimensions (L/W/H) 1,800 / 990 / 1,100 mm
Rated speed at 50Hz / 60Hz 1,500 min¯¹ / 1,800 min¯¹
Power rating at 50Hz / 60Hz 246 kW / 246 kW
Max. effect. mean pressure at 50Hz / 60Hz 16,5 bar / 13,8 bar
Air ratio λ 1.60
Flywheel housing SAE 0
Mass moment of inertia 3.75 kg*m²
Mechanical efficiency 41.5 %
Fuel Biogas / Natural gas
Emission standards TA Luft / TA Luft ½
Areas of application Decentral energy systems

Bulle production site

Liebherr develops and produces diesel and gas engines, injection systems, hydraulic components and splitter boxes in Bulle (Switzerland). Liebherr Machines Bulle SA

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