The Generator EngineEncyclopedia

Liebherr D9512 vs VMAN D22.1

The Liebherr D9512 and VMAN D22.1 are both diesel generator engines in a similar power class. Both are rated at roughly 948 kVA. Displacement is 24.2 L versus 21.927 L. The table below compares their full specifications side by side.

SpecificationLiebherr D9512VMAN D22.1
Headline rating960 kVA936 kVA
Standby (50 Hz)768 kWe
Prime (50 Hz)691.2 kWe
Standby (60 Hz)749 kWe
Prime (60 Hz)680 kWe
Displacement24.2 L21.927 L
ConfigurationV12V12
Cylinders1212
Rated speed1,500 RPM1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsEuro Stage VUnregulated
Dry weight
OriginSwitzerlandChina