G9620 Gas engine

The G9620 has been designed as a 20-cylinder v-engine and thus extends the performance range of Liebherr gas engines into the upper performance range. The model is equipped with built-in air filters, integrated control units with calibrated data sets as well as completely new water cooling design. Series production for the 50 Hz market will begin in 2019. 60 Hz and biogas applications will follow.
Power rating at 50Hz / 60Hz 1,070 kW / 1,070 kW
Rated speed at 50Hz / 60Hz 1,500 min¯¹ / 1,800 min¯¹
Mechanical efficiency 43.9 %
Fuel Natural gas

Technical data

Full equipment availability Yes
Configuration V-engine
Number of cylinders 20
Displacement 48.7 dm³
Bore 135 mm
Stroke 170 mm
Dry weight 4,940 kg
Dimensions (L/W/H) 2,590 / 1,340 / 1,970 mm
Rated speed at 50Hz / 60Hz 1,500 min¯¹ / 1,800 min¯¹
Power rating at 50Hz / 60Hz 1,070 kW / 1,070 kW
Max. effect. mean pressure at 50Hz / 60Hz 17,4 bar / 14,6 bar
Air ratio λ 1.80
Flywheel housing SAE 0
Mass moment of inertia 8.00 kg*m²
Mechanical efficiency 43.9 %
Fuel Natural gas
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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